EP2524619A1 - Multilayer composite for diffusing odorous substances and manufacturing method - Google Patents

Multilayer composite for diffusing odorous substances and manufacturing method Download PDF

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Publication number
EP2524619A1
EP2524619A1 EP20120168010 EP12168010A EP2524619A1 EP 2524619 A1 EP2524619 A1 EP 2524619A1 EP 20120168010 EP20120168010 EP 20120168010 EP 12168010 A EP12168010 A EP 12168010A EP 2524619 A1 EP2524619 A1 EP 2524619A1
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EP
European Patent Office
Prior art keywords
layer
reservoir
support
absorbent
multilayer composite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20120168010
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German (de)
French (fr)
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EP2524619B1 (en
Inventor
Benoît Frassaint
Carole LOPANDIA
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PO-DREUX
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PO-Dreux
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Publication of EP2524619A1 publication Critical patent/EP2524619A1/en
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Publication of EP2524619B1 publication Critical patent/EP2524619B1/en
Active legal-status Critical Current
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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D37/00—Sachet pads specially adapted for liquid toiletry or cosmetic substances
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/0087—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks for samples
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]

Definitions

  • the present invention relates to the field of diffusers of odorous substances and more particularly to the field of diffusers allowing a controlled and prolonged diffusion of the odorous substances that they comprise.
  • the patent US 5,093,182 offers an example of this application of a perfume with a printed advertising medium.
  • This particular application is operated so that the perfume deposited on the advertising medium does not interact with the ink of the printed surface.
  • the perfume oil is premixed in the absence of aqueous phase with a polymer and in particular ethylcellulose which is a known film-forming agent to allow a control of the viscosity.
  • the perfume / polymer mixture is then adapted to be deposited on a printed medium via a known offset device.
  • This fragrance once deposited has the characteristic of being able to dry quickly without requiring heating.
  • such a solution is not satisfactory insofar as the migration and / or diffusion of the deposited fragrance are not controlled inside the printed medium or between several printed media.
  • the patent application JP 9076377 also provides a method of attaching a perfume to a sample.
  • a substrate receives an odorant fragrance and the odorant substrate is covered with a membrane that is sealed to the substrate.
  • This membrane prevents evaporation or early diffusion of the fragrance deposited when the substrate is stored.
  • the release of odorous substances from the substrate is then obtained by a user when the latter removes the membrane from the surface of the substrate.
  • such a method does not provide a solution that makes it possible to directly deposit an odorant substance on a printed substrate.
  • the storage of the product allows a conservation of the odoriferous substance, the release of this substance remains dependent on the removal of the membrane.
  • the patent application 5200210013108 discloses a blotting paper having a first layer of paper or plastic material having a printed outer face and a second very porous layer attached to the inner face of the first layer by gluing or pressing and impregnated with perfume so as to diffuse a fragrance by friction against the skin. This solution is not satisfactory because the perfume can freely migrate between the different layers, thus creating various technical disorders and there is no provision for printing on the blotting layer.
  • the patent US 6125614 discloses a laminate comprising a sheet of backing paper folded and sealed to contain a sample material therein. More specifically, a barrier layer having a material impervious to the sample material, for example PET polymer, is attached to the sheet of backing paper by an adhesive and folded with it, which allows it to have a first lower part and a second part between which the sample material is disposed.
  • This laminate does not allow easy release of the sample material and requires peeling off the fold.
  • the part receiving the sample material is not printed and the industrialization of such an invention seems complex to implement.
  • the present invention proposes to overcome one or more disadvantages of the prior art and in particular to propose a solution that makes it possible to control the diffusion of an odoriferous substance by controlling its migration while preventing an alteration of its odorous characteristics by the support materials. employees or by the printing processes practiced.
  • the present invention also proposes to respond to the problems of industrial production and quality control throughout the production chain, storage and distribution of the product.
  • the multilayer composite for diffusing an odorous substance is characterized in that the printable and / or printed support layer is made of cellulose fibers.
  • the multilayer composite for diffusing an odoriferous substance is characterized in that the absorbent support-reservoir layer of the odoriferous substance is produced by at least one fabric and / or at least one polymer. synthetic fibers.
  • the multilayer compound for diffusion of odorant is characterized in that the polymer is synthetic fiber nonwoven.
  • the nonwoven polymer is a polyester.
  • the multilayer composite for diffusing an odoriferous substance is characterized in that the nonwoven polyester has undergone a step of embossing its surface by graining, stamping and / or embossing. .
  • the multilayer composite for diffusing an odoriferous substance is characterized in that the barrier polymer layer between the absorbent support-reservoir layer and the printable and / or printed support layer forms a first so-called internal migration barrier, the multilayer composite also comprising another barrier layer disposed on a second face of the printable and / or printed support layer forming a second so-called external migration barrier.
  • the multilayer composite for diffusing an odoriferous substance is characterized in that the composite also comprises at least one hinge axis to allow the recovery of a first part of the outer face of the reservoir support absorbent layer which is not in contact with the barrier polymer layer on a second portion of this outer face of the reservoir support absorbent layer.
  • the multilayer composite for diffusing an odoriferous substance is characterized in that the odorant deposited on the absorbent support-reservoir layer is composed of at least one essential oil .
  • Another object of the invention is to provide a method for the manufacture of the multilayer composite of the invention.
  • the method of manufacturing a multilayer composite is characterized in that the process comprises, prior to the step of depositing the odorant substance, a step of printing on the surface of the layer of printable medium and / or the reservoir-reservoir absorbent layer that is not in contact with the barrier polymer layer.
  • the method of manufacturing a multilayer composite is characterized in that the printing step is performed with at least one ink compatible with the odorant deposited on the support-reservoir layer.
  • the method for manufacturing a multilayer composite is characterized in that the method also comprises a step of bringing out the face of the reservoir support of the complex formed by at least one absorbent layer of support-tank / barrier polymer layer.
  • the method of manufacturing a multilayer composite is characterized in that the step of depositing a Odorant substance is operated by a distribution of this substance on a defined surface of the absorbent layer of support-reservoir.
  • the method of manufacturing a multilayer composite is characterized in that the method also comprises a step of fixing an outer barrier layer on the face of the printable and / or printed support layer not oriented towards the barrier polymer layer.
  • the method of manufacturing a multilayer composite is characterized in that the method comprises at least one step of shaping the multilayer composite according to a predefined format.
  • the manufacturing method is characterized in that the method also comprises a step of folding the composite so that a first part of the outer face of the absorbent layer of reservoir support not oriented towards the barrier polymer layer covers a second portion of the same outer face of the reservoir support absorbent layer.
  • Another object of the invention is to provide a system for implementing the method of manufacturing the multilayer composite of the invention.
  • the system for manufacturing a multilayer composite for diffusing an odorous substance comprises in particular, upstream of the fixing station of the printable and / or printed support layer , a station for fixing a barrier polymer layer, on one of its faces, on a layer forming the reservoir-support, so as to produce an absorbent layer of reservoir support / barrier polymer layer.
  • the system for manufacturing a multilayer composite for diffusing an odoriferous substance is characterized in that the system comprises a station for printing a pattern on one of the faces of the layer absorbent carrier-tank and / or printable support layer.
  • the manufacturing system also comprises a station for fixing an external barrier layer on the face of the printable and / or printed support layer that is not oriented towards the absorbent support-reservoir layer of the composite .
  • the system for producing a multilayer composite for diffusing an odorous substance is characterized in that the system comprises at least one forming station for the multilayer composite in a predefined format.
  • the manufacturing system comprises a folding station of the composite allowing a first portion of the outer face of the absorbent support-tank layer that is not in contact with the barrier polymer layer covering a second portion of the same outer face of the absorbent support-tank layer that is not in contact with the barrier polymer layer.
  • the system for manufacturing a multilayer composite for diffusing an odoriferous substance is characterized in that at least one station of the manufacturing system is controlled by a central unit.
  • the composite of the invention is produced by a superimposed multilayer assembly, arranged to receive and store or trap an odorant substance (4) during storage and during the various stages of industrial manufacture or during the distribution of the products, and to allow its distribution when the leaflet is opened by the final recipient (magazine reader or mail, customer shop ).
  • This multilayer assembly is particularly suitable, by way of example but not limited to perfume printed media used in many industries including packaging and cosmetics (manufacturers of cases, boxes and sample cards), those of POS (point-of-sale advertising) and printing (press inserts, addressed or unaddressed advertising, flyers, olfactory marketing) manufacturers.
  • the odorant (4) is volatile and can be a perfume, an essential oil, alone or in combination with a solvent, an aromatic compound, a diluent, a polymer or even a resin.
  • the odoriferous substance (4) is formulated in the liquid or pasty phase of the oil, cream or gel type, of suitable viscosity such that the odoriferous substance (4) can be deposited in or on the reservoir support absorbent layer (1).
  • the absorbent layer of reservoir support (1) thus impregnates the odorant substance (4) by the absorption of the odorant substance (4).
  • this odorous substance (4) covers at least a portion of the surface of the absorbent layer of the reservoir support of the multilayer assembly, by the deposition of a predefined quantity.
  • This deposit can be operated by a coating of all or part of the surface of the reservoir support absorbent layer (1) of the composite.
  • this odorant substance (4) is deposited in the liquid phase.
  • the odoriferous substance (4) can be integrated by humidification and / or impregnation in the absorbent layer of reservoir support (1) thus allowing the storage and diffusion of the odoriferous substance (4).
  • the absorbent reservoir-reservoir layer (1) is fixed on one of its faces to a barrier polymer layer (2), formed for example preferably by a polymer film, which provides a migration barrier to the odorant ( 4) between the reservoir-reservoir absorbent layer (1) and the printable and / or printed support layer (3).
  • the barrier polymer layer (2) is thus disposed intercalated between the two layers (1) and (3).
  • This barrier polymer layer (2) formed by a polymer may also involve, without limitation, a PET or polypropylene (OPP) type polymer film.
  • OPP polypropylene
  • the barrier polymer layer (2) made of OPP has a thickness of 15 ⁇ m and a basis weight of approximately 13 g / m 2 and the PET barrier polymer layer (2) has a basis weight of approximately 17g / m2.
  • the second printable and / or printed support layer (3) may be formed of cellulose fiber, or any other type of support likely to be printed.
  • This layer (3) can thus refer to paper or cardboard in its various variants, that is to say from cellulose fibers, to polyester in its various variants.
  • the support layer (3) has a basis weight of 100g / m2 to 300g / m2.
  • the absorbent support-reservoir layer (1) is preferably made from a fabric and / or at least one synthetic fiber polymer.
  • This woven or non-woven polymer made of synthetic fibers, such as a polyester, does not interact with the odorant (4) and allows automatic cutting with heating knife devices as used, for example, in film coating. or complexing.
  • nonwoven polymer such as a nonwoven polyester fiber, for example, without limitation, having a density of 50 to 120 g / m2.
  • This nonwoven polyester is inert because the fibers are made of synthetic material, which allows it to not be oxidized by the odorant (4).
  • the diffusion of the odorant substance (4) can be of the order of a few days to several weeks in the air free according to the quantity deposited and according to the formulation of the odorant substance (4).
  • the absorbent layer of reservoir-holder may be formed by any material capable of storing and returning an odoriferous substance, which also includes cellulose fibers, acetates cellulose, and / or other polymers.
  • the absorbent reservoir-reservoir layer (1) is deformable and can thus be embossed to change the state of its surface (1A).
  • This operation can be carried out by one or more graining and / or embossing and / or embossing steps.
  • This operation can be carried out by one or more graining and / or embossing and / or embossing steps.
  • the material used to form the absorbent support-tank layer (1) is preferably adapted to be printed.
  • printing inks compatible with the odorant (4) should be used so that they do not interact or alter the odor characteristics of the odorant (4).
  • the printing inks used are of the UV type and are cured by photopolymerization when placed in contact with U.V. radiation (ultraviolet).
  • U.V. radiation ultraviolet
  • the drying of the inks can also be operated by I.R. radiation (Infrared).
  • the multilayer composite also has an outer barrier layer (5) on the surface of the printable and / or printed support layer (3) which is not in contact with the barrier polymer layer (2).
  • the outer barrier layer (5) is made by a treated polypropylene film.
  • the treatment of the polypropylene film can be performed by a plasma treatment which allows the deposition and / or activation of certain groups of at least one of the compounds which form the surface of the outer barrier layer (5).
  • the polypropylene layer is chemically treated.
  • the outer barrier layer (5) may be formed by a varnish deposited on the surface of the printable and / or printed support layer (3) which is not in contact with the barrier polymer layer (2).
  • This varnish can, for example, be cured by photopolymerization U.V.
  • this outer barrier layer (5) makes it possible to prevent the migration and diffusion of odorous substances (4) in the printable and / or printed support layer (3) from the absorbent reservoir-reservoir layer (1).
  • a first multilayer composite disposed under a second multilayer composite in particular during stacking, during storage and during transport of a plurality of multilayer composites of the invention, as illustrated in FIG. figure 7 .
  • the last two layers of reservoir support (1) at the end of the stack can be arranged head-to-tail with respect to each other, that is to say in contact with one of the other at their outer face (1A), which avoids or limits the diffusion of the odorant substance (4) due to the impermeability of the polymer layer (2) sealed barrier located at the end of the pile.
  • This outer barrier layer (5) may, for example, according to its characteristics, have a surface of the multilayer composite of the invention which is able to be glued against a support. This outer barrier layer (5) can thus be bonded and allows the attachment of the multilayer composite on a support such as, for example and without limitation, a magazine or an advertising element, or a presentation element type .L.V. (Point of sale advertising).
  • a support such as, for example and without limitation, a magazine or an advertising element, or a presentation element type .L.V. (Point of sale advertising).
  • the multilayer composite of the invention also comprises at least one hinge pin (6) for allow the covering of a first portion of the outer face (1A) of the first reservoir support absorbent layer (1) which is not in contact with the polymer layer (2) on a second portion of the same outer face (1A). All layers (reservoir support absorbent layer (1), barrier polymer layer (2), printed and / or printable carrier layer (3) and outer barrier layer (5)) are folded together.
  • This hinge axis (6) can be achieved, for example, by creasing or axial folding.
  • the fold-over covering of the two parts of the face of the reservoir support absorbent layer (1) in one position closed allows to limit or even stop the diffusion of the odoriferous substance (4).
  • the diffusion release of the odorant substance (4) is then performed by a user who opens and / or unfolds the multilayer composite of the invention (opening the magazine, opening the sample card, opening a direct marketing leaflet. ..).
  • the multilayer composite of the invention makes it possible to provide a support for the diffusion of an odorous substance (4) that is able to be associated with a printed visual communication element (text, brand, advertising message, etc.). ) both on the part formed by the printable support layer (3) and on the part formed by the reservoir support absorbent layer (1).
  • a printed visual communication element text, brand, advertising message, etc.
  • the multilayer composite of the invention makes it possible to add a particular touch effect on the part formed by the absorbent layer of reservoir support (1) taking into account the fibrous texture of the absorbent layer of reservoir support and taking into account the one or more relief steps having been practiced (graining, embossing, embossing ).
  • the absorbent layer of reservoir support (1) allows to awake the three senses of smell, sight and touch.
  • this multilayer composite of the invention imposes several successive steps in a manufacturing process illustrated on the figures 5 and 8 , and whose order may be different for some of them.
  • the fixing step (E1) of the reservoir-reservoir absorbent layer (1) on the barrier polymer layer (2) is performed by doubling and / or complexing, for example and without limitation by thermo-complexing.
  • the fixing step (E2) of the printable and / or printed support layer (3) on the barrier polymer layer (2) is carried out by rolling, laminating, laminating or tacking.
  • the deposition step (E6) can be carried out by coating, printing and / or impregnating the surface of the reservoir-reservoir absorbent layer (1) with the odorant (4) intended to be diffused.
  • This depositing step may involve printing techniques by screen printing, flexography or offset. These techniques allow a distribution of the odorant substance (4) on all or part of the surface of the absorbent layer of reservoir-tank (1) and allow to vary the amount of odorant (4) deposited.
  • the method may include a step of printing (E4) the printable support layer (3) by a suitable printing device and / or system.
  • This printing step (E4) is preferably carried out beforehand at the deposition step (E6) of the odorous substance (4) on the absorbent layer of reservoir-support (1).
  • this printing step (E4) can be performed either after the printable support layer (3) is attached to the face of the barrier polymer layer (2) which is not contact with the reservoir-reservoir absorbent layer (1), either before this fixing step (E2).
  • the method may comprise a step (E5) of fixing a barrier layer external (5) on the second side of the printable and / or printed support layer (3).
  • the method may include embossing (E7) by embossing, embossing or embossing the entire multilayer composite or only one or more of the composite layers of the composite.
  • the multilayer composite being produced, and the odorous substance (4) being optionally deposited (E6), the method may further comprise a shaping step (E8).
  • This shaping step (E8) consists in one or more operations of a list comprising for example a gilding, a cut, a creasing.
  • the homogeneity of the distribution and the determination of the surface intended to be covered by the odorant substance (4) is defined by a screen forming a sieve variable mesh (principle similar to the screen printing technique). For example, without limitation, it is possible to deposit by this method an amount of odorous substance of 12 to 20g / m2.
  • the homogeneity of distribution may also involve an anilox, which is a cylinder having on its peripheral surface various forms of etchings or cavities which , depending on their respective shapes and volumes and in combination with a blanket, participate in the amount of odorant (4) to be deposited on the absorbent reservoir-reservoir layer (1) (principle similar to the printing technique of type flexography). For example, without limitation, it is possible to deposit by this method an amount of odorant (4) of 3 to 10g / m2.
  • a metal surface forming for example a plate is used to transfer the odorant substance (4) onto an elastomeric surface forming for example a blanket.
  • the elastomeric surface is positioned in contact with the surface of the reservoir-reservoir absorbent layer (1) (similar principle to the offset type printing technique). For example, without limitation, it is it is possible to deposit by this method an amount of odoriferous substance (4) of the order of one or a few g / m2.
  • the system of the invention allows a transport and storage of the multilayer composite form sheets or flat stacked so that the diffusion or migration of the odorant (4) are controlled.
  • the method of the invention also comprises a folding step (E10) of the composite so that a first portion of the outer face (1A) of the reservoir support absorbent layer (1) which is not in contact with the barrier polymer layer (2) covers a second portion of the same outer face (1A) of the reservoir support absorbent layer (1) .
  • this folding operation (E10) is performed after the deposition step (E6) of an odorant substance (4) on the composite.
  • the deposition step (E6) of the odorant substance (4) on the reservoir support absorbent layer (1) can be performed after all the other manufacturing steps in a point of sale during the distribution or presentation. final multilayer to the customer.
  • the manufacturing system allowing the implementation of the method of the invention, can be formed by a single device or a plurality of devices separated from each other. These devices then comprise one or more stations arranged to perform at least one of the various operations or steps of the method of manufacturing the multilayer composite of the invention.
  • the system of the invention comprises a plurality of stations, each being adapted to allow the realization of at least one of the steps: fixing the layers together (E1 , E2, E5), printing (E3, E4), odorant deposition (E6), embossing (E7) or shaping (E8) of the manufacturing method of the invention.
  • the device also comprises a central unit which allows the coordination of the operation of the various stations of the system. This coordination can concern just two stations as well as all the stations of the system, the central unit can control at least one position of the device.
  • the manufacturing system may involve a plurality of coils each of which corresponds to a winding of one of the layers of the multilayer composite before it is integrated into the composite of the invention.
  • the system of the invention allows unwinding (or unwinding) of these coils arranged to allow the realization of the different successive steps of the method.
  • the coils of the reservoir-reservoir absorbent layer (1) and the barrier polymer layer (2) are unwound in the first place to allow their attachment (E1) at a common surface.
  • the reel of the printable and / or printed support layer (3) is unwound in order to allow its attachment (E2) to the face of the barrier polymer layer (2) not oriented towards the reservoir-reservoir absorbent layer (1).
  • a coil comprising the coating intended to form the outer barrier layer (5) is also unwound to cover the face of the printable and / or printed support layer (3) located on the non-facing face. oriented towards the barrier polymer layer (2).
  • This cut (E9) of the partially or totally formed composite strip may involve a cutting blade rectilinear so as to obtain a plurality of stackable parts of the composite called flat or leaves.
  • this rectilinear blade can be replaced by a punch allowing cutting in a defined format of the composite strip.
  • the blade used may be a straight thermal blade that allows a clean and fast cut of the composite by melting while avoiding an undesirable presence of fibers that would come off the composite and come create technical disorders during printing processes.
  • the cut-out composites in the desired format are then recovered and stored as flat areas or sheets manually or by automatic recipe.
  • the figure 5 which proposes a schematic representation of the various steps of the manufacturing process of the composite of the invention clearly shows that certain process steps, in particular the printing (E3, E4), embossing (E7), or cutting steps (E9) can be performed at different times of the process with respect to the main steps of formation of the bilayer (E1) and then the tri-layer (E2) of the composite and deposition of the odorant substance (E6) of the composite.
  • certain process steps in particular the printing (E3, E4), embossing (E7), or cutting steps (E9) can be performed at different times of the process with respect to the main steps of formation of the bilayer (E1) and then the tri-layer (E2) of the composite and deposition of the odorant substance (E6) of the composite.
  • the implementation system of the method of the invention comprises a plurality of which each is organized, arranged or designed to operate respectively at least one step of the method of the invention described above.
  • the stations of the implementation system of the method of the invention can be positioned on one or more different production sites. The products obtained at each of these stations can then be transported from one site to another so that the process can continue to be implemented.
  • the system of the invention can integrate a central unit that allows the management and coordination of at least two system positions in the production of the composite.

Abstract

The composite has an absorbent support-reservoir layer (1) designed to be printed and to receive an odorous substance (4). A polymer barrier layer (2) is positioned between a printable and/or printed support layer (3) and the absorbent support-reservoir layer to prevent migration of the substance between the support layers, where the printable and/or printed support layer is made of cellulose fibers. A hinge axis allows covering a first part of an outer face (1A) of the support-reservoir layer, which is not in contact with the barrier layer, on a second part of the outer face. Independent claims are also included for the following: (1) a method for producing a multilayer composite for diffusion of an odorous substance (2) a system for producing a multilayer composite for diffusion of an odorous substance.

Description

La présente invention se rapporte au domaine des diffuseurs de substances odorantes et plus particulièrement au domaine des diffuseurs permettant une diffusion contrôle et prolongée des substances odorantes qu'ils comportent.The present invention relates to the field of diffusers of odorous substances and more particularly to the field of diffusers allowing a controlled and prolonged diffusion of the odorous substances that they comprise.

II devient de plus en plus courant de proposer des échantillons pour un parfum sous la forme d'une lingette imprégnée et attachée dans un encart publicitaire d'un magazine. Par ailleurs, il est également courant de proposer ces échantillons sous la forme de carte à parfum ou papier buvard directement auprès de clients potentiels dans des parfumeries. De même, pour se démarquer de la concurrence, certaines enseignes utilisent une signature olfactive sur leurs cartes de visite ou sur courriers ou objets publicitaires destinés au lancement de nouvelles campagnes promotionnelles.It is becoming more and more common to provide samples for a perfume in the form of an impregnated wipe and attached in a magazine advertisement insert. Moreover, it is also common to offer these samples in the form of perfume card or blotting paper directly from potential customers in perfumeries. Similarly, to stand out from the competition, some brands use an olfactory signature on their business cards or on letters or promotional items intended for launching new promotional campaigns.

Le brevet US 5,093,182 propose un exemple de cette application d'un parfum avec un support publicitaire imprimé. Cette application particulière est opérée de sorte que le parfum déposé sur le support publicitaire n'interagit pas avec l'encre de la surface imprimée. Pour ce faire, l'huile du parfum est préalablement mélangée en absence de phase aqueuse avec un polymère et notamment de l'éthylcellulose qui est un agent filmogène connu pour permettre un contrôle de la viscosité. Le mélange parfum/polymère est alors adapté pour être déposé sur un support imprimé par l'intermédiaire d'un dispositif offset connu. Ce parfum une fois dépose a la caractéristique de pouvoir sécher rapidement sans nécessiter de chauffage. Toutefois, une telle solution n'est pas satisfaisante dans la mesure ou la migration et/ou la diffusion du parfum déposé ne sont pas maîtrisés à l'intérieur du support imprimé ou entre plusieurs supports imprimés.The patent US 5,093,182 offers an example of this application of a perfume with a printed advertising medium. This particular application is operated so that the perfume deposited on the advertising medium does not interact with the ink of the printed surface. To do this, the perfume oil is premixed in the absence of aqueous phase with a polymer and in particular ethylcellulose which is a known film-forming agent to allow a control of the viscosity. The perfume / polymer mixture is then adapted to be deposited on a printed medium via a known offset device. This fragrance once deposited has the characteristic of being able to dry quickly without requiring heating. However, such a solution is not satisfactory insofar as the migration and / or diffusion of the deposited fragrance are not controlled inside the printed medium or between several printed media.

La demande de brevet JP 9076377 propose également un procédé de fixation d'un parfum sur un échantillon. Selon ce procédé, un substrat reçoit une fragrance odorante puis ce substrat odorant est recouvert d'une membrane qui vient se sceller au substrat. Cette membrane permet d'empêcher une évaporation ou diffusion précoce de la fragrance déposée lorsque le substrat est stocké. La libération des substances odorantes du substrat est alors obtenue par un utilisateur lorsque celui-ci retire la membrane de la surface du substrat. Cependant, un tel procédé ne propose pas une solution qui permette de déposer directement une substance odorante sur un substrat imprimé. De plus, si le stockage du produit permet une conservation de la substance odorante, la libération de cette substance demeure tributaire du retrait de la membrane.The patent application JP 9076377 also provides a method of attaching a perfume to a sample. According to this method, a substrate receives an odorant fragrance and the odorant substrate is covered with a membrane that is sealed to the substrate. This membrane prevents evaporation or early diffusion of the fragrance deposited when the substrate is stored. The release of odorous substances from the substrate is then obtained by a user when the latter removes the membrane from the surface of the substrate. However, such a method does not provide a solution that makes it possible to directly deposit an odorant substance on a printed substrate. In addition, if the storage of the product allows a conservation of the odoriferous substance, the release of this substance remains dependent on the removal of the membrane.

La demande de brevet 5200210013108 décrit un papier buvard présentant une première couche en papier ou en matériau plastique ayant une face extérieure imprimée et une deuxième couche trés poreuse fixée à la face intérieure de la première couche par collage ou pression et imprégnée de parfum de façon à diffuser un parfum par frottement contre la peau. Cette solution n'est pas satisfaisante car le parfum peut librement migrer entre les différentes couches, créant ainsi divers désordres techniques et il n'est pas prévu d'impression sur la couche buvard.The patent application 5200210013108 discloses a blotting paper having a first layer of paper or plastic material having a printed outer face and a second very porous layer attached to the inner face of the first layer by gluing or pressing and impregnated with perfume so as to diffuse a fragrance by friction against the skin. This solution is not satisfactory because the perfume can freely migrate between the different layers, thus creating various technical disorders and there is no provision for printing on the blotting layer.

Le brevet US 6125614 présente une stratifié comprenant une feuille de papier support pliée et scellée de façon à contenir un matériau échantillon situé dans ce pli. Plus précisément, une couche barrière présentant un matériau imperméable au matériau échantillon, par exemple en polymère PET, est fixée à la feuille de papier support par un adhésif et pliée avec elle, ce qui lui permet de présenter une première partie inférieure et une deuxième partie supérieure entre lesquelles le matériau échantillon est disposé. Cette stratifié ne permet pas la libération facile du matériau échantillon et nécessite de décoller le pli. De plus la partie recevant le matériau échantillon n'est pas imprimée et l'industrialisation d'une telle invention semble complexe à mettre en oeuvre.The patent US 6125614 discloses a laminate comprising a sheet of backing paper folded and sealed to contain a sample material therein. More specifically, a barrier layer having a material impervious to the sample material, for example PET polymer, is attached to the sheet of backing paper by an adhesive and folded with it, which allows it to have a first lower part and a second part between which the sample material is disposed. This laminate does not allow easy release of the sample material and requires peeling off the fold. In addition, the part receiving the sample material is not printed and the industrialization of such an invention seems complex to implement.

La présente invention se propose de palier un ou plusieurs inconvénients de l'art antérieur et notamment de proposer une solution qui permette de maîtriser la diffusion d'une substance odorante en contrôlant sa migration tout en empêchant une altération de ses caractéristiques odorantes par les matériaux supports employés ou par les procédés d'impression pratiqués.The present invention proposes to overcome one or more disadvantages of the prior art and in particular to propose a solution that makes it possible to control the diffusion of an odoriferous substance by controlling its migration while preventing an alteration of its odorous characteristics by the support materials. employees or by the printing processes practiced.

La présente invention se propose également de répondre aux problématiques de production industrielle et de maîtrise de la qualité tout au long de la chaîne de production, de stockage et de distribution du produit.The present invention also proposes to respond to the problems of industrial production and quality control throughout the production chain, storage and distribution of the product.

Cet objectif est atteint grâce à un composite multicouche pour diffusion d'une substance odorante, caractérisé en ce que le composite multicouche comprend :

  • une couche absorbante de support-réservoir pour être imprimée et pour recevoir une substance odorante destinée à être diffusée,
  • une couche de support imprimable et/ou imprimée,
  • une couche de polymère barrière disposée entre la couche de support imprimable et/ou imprimée et la couche absorbante de support-réservoir, pour empêcher une migration de cette substance entre les supports.
This objective is achieved by means of a multilayer composite for diffusing an odorous substance, characterized in that the multilayer composite comprises:
  • an absorbent reservoir-tank layer for printing and for receiving an odorant for diffusion,
  • a printable and / or printed support layer,
  • a barrier polymer layer disposed between the printable and / or printed support layer and the reservoir-reservoir absorbent layer to prevent migration of this material between the supports.

Selon une particularité de l'invention, le composite multicouche pour diffusion d'une substance odorante est caractérisé en ce que la couche de support imprimable et/ou imprimée est en fibres de cellulose.According to one particularity of the invention, the multilayer composite for diffusing an odorous substance is characterized in that the printable and / or printed support layer is made of cellulose fibers.

Selon une autre particularité de l'invention, le composite multicouche pour diffusion d'une substance odorante est caractérisé en ce que la couche absorbante de support-réservoir de la substance odorante est réalisée par au moins un tissu et/ou au moins un polymère en fibres synthétiques.According to another particularity of the invention, the multilayer composite for diffusing an odoriferous substance is characterized in that the absorbent support-reservoir layer of the odoriferous substance is produced by at least one fabric and / or at least one polymer. synthetic fibers.

Selon une autre particularité de l'invention, le composé multicouche pour diffusion d'une substance odorante est caractérisé en ce que le polymère en fibres synthétiques est non-tissé.According to another feature of the invention, the multilayer compound for diffusion of odorant is characterized in that the polymer is synthetic fiber nonwoven.

Selon une autre particularité de l'invention, le polymère non-tissé est un polyester.According to another feature of the invention, the nonwoven polymer is a polyester.

Selon une autre particularité non limitative de l'invention, le composite multicouche pour diffusion d'une substance odorante est caractérisé en ce que le polyester non-tissé a subi une étape de mise en relief de sa surface par grainage, estampage et/ou gaufrage.According to another non-limiting feature of the invention, the multilayer composite for diffusing an odoriferous substance is characterized in that the nonwoven polyester has undergone a step of embossing its surface by graining, stamping and / or embossing. .

Selon une autre particularité de l'invention, le composite multicouche pour diffusion d'une substance odorante est caractérisé en ce que, la couche de polymère barrière entre la couche absorbante de support-réservoir et la couche de support imprimable et/ou imprimée forme une première barrière de migration dite interne, le composite multicouche comprenant également une autre couche barrière disposée sur une seconde face de la couche de support imprimable et/ou imprimée formant une seconde barrière de migration dite externe.According to another particularity of the invention, the multilayer composite for diffusing an odoriferous substance is characterized in that the barrier polymer layer between the absorbent support-reservoir layer and the printable and / or printed support layer forms a first so-called internal migration barrier, the multilayer composite also comprising another barrier layer disposed on a second face of the printable and / or printed support layer forming a second so-called external migration barrier.

Selon une autre particularité de l'invention, le composite multicouche pour diffusion d'une substance odorante est caractérisé en ce que le composite comprend également au moins un axe d'articulation pour permettre le recouvrement d'une première partie de la face extérieure de la couche absorbante de support réservoir qui n'est pas en contact avec la couche de polymère barrière sur une seconde partie de cette face extérieure de la couche absorbante de support réservoir.According to another feature of the invention, the multilayer composite for diffusing an odoriferous substance is characterized in that the composite also comprises at least one hinge axis to allow the recovery of a first part of the outer face of the reservoir support absorbent layer which is not in contact with the barrier polymer layer on a second portion of this outer face of the reservoir support absorbent layer.

A titre non limitatif, selon une autre particularité de l'invention, le composite multicouche pour diffusion d'une substance odorante est caractérisé en ce que la substance odorante déposée sur la couche absorbante de support-réservoir est composée d'au moins une huile essentielle.Without limitation, according to another feature of the invention, the multilayer composite for diffusing an odoriferous substance is characterized in that the odorant deposited on the absorbent support-reservoir layer is composed of at least one essential oil .

Un autre objet de l'invention est de proposer un procédé permettant la fabrication du composite multicouche de l'invention.Another object of the invention is to provide a method for the manufacture of the multilayer composite of the invention.

Cet objet est atteint grâce à un procédé de fabrication d'un composite multicouche pour diffusion d'une substance odorante selon l'invention, caractérisé en ce que le procédé comprend notamment :

  • une étape de fixation, par une de ses faces, d'une couche de polymère barrière, tel qu'un film polymère, sur un revêtement formant une couche absorbante de support-réservoir, de façon à réaliser un complexe couche absorbante de support réservoir / couche de polymère barrière,
  • une étape de fixation d'une couche de support imprimable et/ou imprimée sur la face de la couche de polymère barrière qui n'est pas en contact avec la couche absorbante de support réservoir,
  • une étape de dépôt d'une substance odorante sur le revêtement formant la couche absorbante de support-réservoir.
This object is achieved by a method of manufacturing a multilayer composite for diffusing an odorant substance according to the invention, characterized in that the method comprises in particular:
  • a step of fixing, by one of its faces, a barrier polymer layer, such as a polymer film, on a coating forming an absorbent layer of reservoir-support, so as to produce a complex absorbent layer of reservoir support / barrier polymer layer,
  • a step of fixing a printable and / or printed support layer on the face of the barrier polymer layer that is not in contact with the reservoir support absorbent layer,
  • a step of depositing an odorant substance on the coating forming the reservoir-reservoir absorbent layer.

Selon une particularité de l'invention, le procédé de fabrication d'un composite multicouche est caractérisé en ce que le procédé comprend, préalablement à l'étape de dépôt de la substance odorante, une étape d'impression sur la surface de la couche de support imprimable et/ou de la couche absorbante de support-réservoir qui n'est pas en contact avec la couche de polymère barrière.According to one particularity of the invention, the method of manufacturing a multilayer composite is characterized in that the process comprises, prior to the step of depositing the odorant substance, a step of printing on the surface of the layer of printable medium and / or the reservoir-reservoir absorbent layer that is not in contact with the barrier polymer layer.

Selon une autre particularité de l'invention, le procédé de fabrication d'un composite multicouche est caractérisé en ce que l'étape d'impression est effectuée avec au moins une encre compatible avec la substance odorante déposée sur la couche de support-réservoir.According to another feature of the invention, the method of manufacturing a multilayer composite is characterized in that the printing step is performed with at least one ink compatible with the odorant deposited on the support-reservoir layer.

Selon une autre particularité non limitative de l'invention, le procédé de fabrication d'un composite multicouche est caractérisé en ce que le procédé comprend également une étape de mise en relief de la face du support-réservoir du complexe formé par au moins l'ensemble couche absorbante de support-réservoir / couche de polymère barrière.According to another non-limiting feature of the invention, the method for manufacturing a multilayer composite is characterized in that the method also comprises a step of bringing out the face of the reservoir support of the complex formed by at least one absorbent layer of support-tank / barrier polymer layer.

Selon une autre particularité de l'invention, le procédé de fabrication d'un composite multicouche est caractérisé en ce que l'étape de dépôt d'une substance odorante est opérée par une répartition de cette substance sur une surface définie de la couche absorbante de support-réservoir.According to another particularity of the invention, the method of manufacturing a multilayer composite is characterized in that the step of depositing a Odorant substance is operated by a distribution of this substance on a defined surface of the absorbent layer of support-reservoir.

Selon une autre particularité de l'invention, le procédé de fabrication d'un composite multicouche est caractérisé en ce que le procédé comprend également une étape de fixation d'une couche barrière externe sur la face de la couche de support imprimable et/ou imprimée non orientée vers la couche de polymère barrière.According to another feature of the invention, the method of manufacturing a multilayer composite is characterized in that the method also comprises a step of fixing an outer barrier layer on the face of the printable and / or printed support layer not oriented towards the barrier polymer layer.

Selon une autre particularité de l'invention, le procédé de fabrication d'un composite multicouche est caractérisé en ce que le procédé comprend au moins une étape de façonnage du composite multicouche selon un format prédéfini.According to another feature of the invention, the method of manufacturing a multilayer composite is characterized in that the method comprises at least one step of shaping the multilayer composite according to a predefined format.

Selon une autre particularité de l'invention, le procédé de fabrication est caractérisé en ce que le procédé comprend également une étape de pliage du composite de sorte qu'une première partie de la face extérieure de la couche absorbante de support réservoir non orientée vers la couche de polymère barrière recouvre une seconde partie de cette même face extérieure de la couche absorbante de support réservoir.According to another feature of the invention, the manufacturing method is characterized in that the method also comprises a step of folding the composite so that a first part of the outer face of the absorbent layer of reservoir support not oriented towards the barrier polymer layer covers a second portion of the same outer face of the reservoir support absorbent layer.

Un autre objet de l'invention est de proposer un système permettant la mise en oeuvre du procédé de fabrication du composite multicouche de l'invention.Another object of the invention is to provide a system for implementing the method of manufacturing the multilayer composite of the invention.

Cet objet est atteint grâce à un système de fabrication d'un composite multicouche pour diffusion d'une substance odorante caractérisé en ce qu'il est adapté pour la mise en oeuvre d'un procédé de fabrication selon l'invention, le système comprenant notamment :

  • un poste de fixation d'une couche de support imprimable et/ou imprimée sur la face de la couche de polymère barrière qui n'est pas en contact avec la couche absorbante de support-réservoir, ce poste de fixation recevant un complexe bicouche incluant la couche absorbante de support-réservoir sur laquelle a été préalablement fixée la couche de polymère barrière,
  • un poste de dépôt d'une substance odorante sur une couche absorbante de support-réservoir.
This object is achieved by means of a system for manufacturing a multilayer composite for diffusing an odorous substance, characterized in that it is suitable for the implementation of a manufacturing method according to the invention, the system comprising in particular :
  • a station for fixing a support layer that can be printed and / or printed on the face of the barrier polymer layer that is not in contact with the reservoir-support absorbent layer, this attachment station receiving a bilayer complex including the absorber-reservoir layer on which the barrier polymer layer has been previously fixed,
  • a station for depositing an odorant substance on an absorbent reservoir-reservoir layer.

Selon une particularité de l'invention, le système de fabrication d'un composite multicouche pour diffusion d'une substance odorante est caractérisé en ce que le système comprend notamment, en amont du poste de fixation de la couche de support imprimable et/ou imprimée, un poste de fixation d'une couche de polymère barrière, par une de ses faces, sur une couche formant le support-réservoir, de façon à réaliser un complexe couche absorbante de support réservoir / couche de polymère barrière.According to one particularity of the invention, the system for manufacturing a multilayer composite for diffusing an odorous substance is characterized in that the system comprises in particular, upstream of the fixing station of the printable and / or printed support layer , a station for fixing a barrier polymer layer, on one of its faces, on a layer forming the reservoir-support, so as to produce an absorbent layer of reservoir support / barrier polymer layer.

Selon une particularité non limitative de l'invention, le système de fabrication d'un composite multicouche pour diffusion d'une substance odorante est caractérisé en ce que le système comprend un poste d'impression d'un motif sur une des faces de la couche absorbante de support-réservoir et/ou de la couche de support imprimable.According to a non-limiting feature of the invention, the system for manufacturing a multilayer composite for diffusing an odoriferous substance is characterized in that the system comprises a station for printing a pattern on one of the faces of the layer absorbent carrier-tank and / or printable support layer.

Selon une autre particularité de l'invention, le système de fabrication comprend également un poste de fixation d'une couche barrière externe sur la face de la couche de support imprimable et/ou imprimé non orientée vers la couche absorbante de support-réservoir du composite.According to another feature of the invention, the manufacturing system also comprises a station for fixing an external barrier layer on the face of the printable and / or printed support layer that is not oriented towards the absorbent support-reservoir layer of the composite .

Selon une autre particularité de l'invention, le système de fabrication d'un composite multicouche pour diffusion d'une substance odorante est caractérisé en ce que le système comprend au moins un poste de façonnage du composite multicouche selon un format prédéfini.According to another particularity of the invention, the system for producing a multilayer composite for diffusing an odorous substance is characterized in that the system comprises at least one forming station for the multilayer composite in a predefined format.

Selon une autre particularité de l'invention, le système de fabrication comprend un poste de pliage du composite permettant à une première partie de la face extérieure de la couche absorbante de support-réservoir qui n'est pas en contact avec la couche de polymère barrière de recouvrir une seconde partie de même face extérieure de la couche absorbante de support-réservoir qui n'est pas en contact avec la couche de polymère barrière.According to another feature of the invention, the manufacturing system comprises a folding station of the composite allowing a first portion of the outer face of the absorbent support-tank layer that is not in contact with the barrier polymer layer covering a second portion of the same outer face of the absorbent support-tank layer that is not in contact with the barrier polymer layer.

Selon une autre particularité de l'invention, le système de fabrication d'un composite multicouche pour diffusion d'une substance odorante est caractérisé en ce que au moins un poste du système de fabrication est contrôlé par une unité centrale.According to another feature of the invention, the system for manufacturing a multilayer composite for diffusing an odoriferous substance is characterized in that at least one station of the manufacturing system is controlled by a central unit.

L'invention, avec ses caractéristiques et avantages, ressortira plus clairement à la lecture de la description faite en référence aux dessins annexés dans (lesquels) :

  • la figure 1 représente schématiquement une superposition des différentes couches du composite selon l'invention permettant de recevoir une substance odorante dans une couche absorbante de support réservoir,
  • la figure 2 représente schématiquement une variante du composite dans laquelle la couche absorbante de support réservoir présente une mise en relief,
  • la figure 3 représente schématiquement une variante du composite dans laquelle une couche barrière externe est fixée sur la face de la couche de support imprimable et/ou imprimée non liée à la couche de polymère barrière.
  • la figure 4 schématiquement une variante du composite dans laquelle la couche absorbante de support réservoir présente une mise en relief et dans laquelle une couche barrière externe est fixée sur la face de la couche de support imprimable et/ou imprimée non liée à la couche de polymère barrière.
  • la figure 5 représente un schéma des différentes étapes envisageables d'un procédé de fabrication du composite de l'invention,
  • la figure 6 représente schématiquement une variante du composite multicouche selon l'invention dans laquelle il est plié pour éviter la diffusion de la substance odorante,
  • la figure 7 illustre un empilement de composites multicouche lors de leur transport et/ou leur stockage, avant pliage et
  • la figure 8 représente un exemple schématique d'un dispositif permettant la mise en oeuvre du procédé de fabrication selon l'invention.
The invention, with its features and advantages, will emerge more clearly from a reading of the description given with reference to the appended drawings in which:
  • the figure 1 schematically represents a superposition of the various layers of the composite according to the invention for receiving an odoriferous substance in an absorbent layer of reservoir support,
  • the figure 2 schematically represents a variant of the composite in which the absorbent layer of reservoir support has a relief,
  • the figure 3 schematically represents a variant of the composite in which an outer barrier layer is fixed on the face of the printable and / or printed support layer not bonded to the barrier polymer layer.
  • the figure 4 schematically a variant of the composite in which the reservoir support absorbent layer has a relief and in which an outer barrier layer is fixed on the face of the printable and / or printed support layer not bonded to the barrier polymer layer.
  • the figure 5 represents a diagram of the various possible steps of a method of manufacturing the composite of the invention,
  • the figure 6 schematically represents a variant of the multilayer composite according to the invention in which it is folded to prevent the diffusion of the odoriferous substance,
  • the figure 7 illustrates a stack of multilayer composites during their transport and / or storage, before folding and
  • the figure 8 represents a schematic example of a device for implementing the manufacturing method according to the invention.

Le composite de l'invention est réalisé par un ensemble multicouche superposé, agencé pour recevoir et stocker ou emprisonner une substance odorante (4) pendant le stockage et lors des différentes étapes de la fabrication industrielle ou lors de la distribution des produits, et pour permettre sa diffusion lorsque le dépliant est ouvert par le destinataire final (lecteur de magazine ou courrier, client boutique...)The composite of the invention is produced by a superimposed multilayer assembly, arranged to receive and store or trap an odorant substance (4) during storage and during the various stages of industrial manufacture or during the distribution of the products, and to allow its distribution when the leaflet is opened by the final recipient (magazine reader or mail, customer shop ...)

Cet ensemble multicouche est particulièrement adapté, à titre d'exemple mais non limitatif, pour parfumer des supports imprimés utilisés dans de nombreuses industries notamment celles du packaging et de la cosmétique (fabricants d'étuis, de coffrets et de cartes échantillons), celles des fabricants de PLV (publicité sur le lieu de vente) et celles de l'imprimerie (encarts presse, publicité adressée ou non adressée, flyers, marketing olfactif).This multilayer assembly is particularly suitable, by way of example but not limited to perfume printed media used in many industries including packaging and cosmetics (manufacturers of cases, boxes and sample cards), those of POS (point-of-sale advertising) and printing (press inserts, addressed or unaddressed advertising, flyers, olfactory marketing) manufacturers.

En particulier, il est adapté pour réaliser des encarts publicitaires ou cartes échantillons à insérer dans les feuillets d'une revue, d'un magazine et diffuser des fragrances associées à une communication produit visuelle imprimée sur l'encart ou la carte échantillon.In particular, it is suitable for making advertising inserts or sample cards to be inserted in the leaflets of a magazine, a magazine and disseminating fragrances associated with a visual product communication printed on the inset or the sample card.

La substance odorante (4) est volatile et peut être un parfum , une huile essentielle, seule ou combinée avec un solvant, un composé aromatique, un diluant, un polymère, voire encore une résine.The odorant (4) is volatile and can be a perfume, an essential oil, alone or in combination with a solvent, an aromatic compound, a diluent, a polymer or even a resin.

La substance odorante (4) est formulée en phase liquide ou pâteuse de type huile, crème ou gel, de viscosité adaptée telle que la substance odorante (4) peut être déposée dans ou sur la couche absorbante de support réservoir (1).The odoriferous substance (4) is formulated in the liquid or pasty phase of the oil, cream or gel type, of suitable viscosity such that the odoriferous substance (4) can be deposited in or on the reservoir support absorbent layer (1).

La couche absorbante de support réservoir (1) s'imprègne ainsi de la substance odorante (4) par l'absorption de la substance odorante (4).The absorbent layer of reservoir support (1) thus impregnates the odorant substance (4) by the absorption of the odorant substance (4).

Selon un mode de réalisation préféré, cette substance odorante (4) recouvre au moins une partie de la surface de la couche absorbante du support réservoir de l'ensemble multicouche, par le dépôt d'une quantité prédéfinie. Ce dépôt peut être opéré par une enduction de tout ou partie de la surface de la couche absorbante de support réservoir (1) du composite.According to a preferred embodiment, this odorous substance (4) covers at least a portion of the surface of the absorbent layer of the reservoir support of the multilayer assembly, by the deposition of a predefined quantity. This deposit can be operated by a coating of all or part of the surface of the reservoir support absorbent layer (1) of the composite.

Préférentiellement, cette substance odorante (4) est déposée en phase liquide.Preferably, this odorant substance (4) is deposited in the liquid phase.

Selon un exemple de réalisation, la substance odorante (4) peut être intégrée par humidification et/ou imprégnation dans la couche absorbante de support réservoir (1) permettant ainsi le stockage et la diffusion de la substance odorante (4).According to an exemplary embodiment, the odoriferous substance (4) can be integrated by humidification and / or impregnation in the absorbent layer of reservoir support (1) thus allowing the storage and diffusion of the odoriferous substance (4).

Comme illustré sur les figures 1 à 4, la couche absorbante de support-réservoir (1) est fixée sur une de ses faces à une couche de polymère barrière (2), formée par exemple de façon préférentielle par un film polymère, qui assure une barrière de migration à la substance odorante (4) entre la couche absorbante de support-réservoir (1) et la couche de support imprimable et/ou imprimée (3). La couche de polymère barrière (2) est ainsi disposée de façon intercalaire entre les deux couches (1) et (3).As illustrated on Figures 1 to 4 the absorbent reservoir-reservoir layer (1) is fixed on one of its faces to a barrier polymer layer (2), formed for example preferably by a polymer film, which provides a migration barrier to the odorant ( 4) between the reservoir-reservoir absorbent layer (1) and the printable and / or printed support layer (3). The barrier polymer layer (2) is thus disposed intercalated between the two layers (1) and (3).

Cette couche de polymère barrière (2) formée par un polymère peut également faire intervenir de façon non limitative un film polymère de type PET ou polypropylène (OPP). Ainsi disposée, cette couche de polymère barrière (2) permet d'empêcher toute migration de la substance odorante (4) depuis la couche absorbante de support-réservoir (1) vers la couche de support imprimable et/ou imprimée (3).This barrier polymer layer (2) formed by a polymer may also involve, without limitation, a PET or polypropylene (OPP) type polymer film. Thus arranged, this barrier polymer layer (2) makes it possible to prevent any migration of the odorant substance (4) from the reservoir-reservoir absorbent layer (1) to the printable and / or printed support layer (3).

Par exemple, à titre non limitatif, la couche de polymère barrière (2) en OPP présente une épaisseur de 15 µm et un grammage d'environ 13g/m2 et la couche de polymère barrière (2) en PET présente un grammage d'environ 17g/m2.For example, without limitation, the barrier polymer layer (2) made of OPP has a thickness of 15 μm and a basis weight of approximately 13 g / m 2 and the PET barrier polymer layer (2) has a basis weight of approximately 17g / m2.

La seconde couche de support imprimable et/ou imprimée (3) peut être formée par de la fibre de cellulose, ou tout autre type de support susceptible d'être imprimé. Cette couche (3) peut ainsi aussi bien se rapporter à du papier ou à du carton dans ses diverses variantes, c'est-à-dire à partir de fibres de cellulose, qu'à du polyester dans ses différentes variantes.The second printable and / or printed support layer (3) may be formed of cellulose fiber, or any other type of support likely to be printed. This layer (3) can thus refer to paper or cardboard in its various variants, that is to say from cellulose fibers, to polyester in its various variants.

Par exemple, à titre non limitatif, la couche de support (3) présente un grammage de 100g/m2 à 300g/m2.For example, without limitation, the support layer (3) has a basis weight of 100g / m2 to 300g / m2.

Dans le cadre de l'invention, la couche absorbante de support-réservoir (1) est préférentiellement réalisée à partir d'un tissu et/ou d'au moins un polymère en fibres synthétiques.In the context of the invention, the absorbent support-reservoir layer (1) is preferably made from a fabric and / or at least one synthetic fiber polymer.

Ce polymère tissé ou non-tissé en fibres synthétiques, tel qu'un polyester, n'interagit pas au contact de la substance odorante (4) et permet la coupe automatique avec des dispositifs de couteaux chauffants tels qu'employés par exemple dans le pelliculage ou le complexage.This woven or non-woven polymer made of synthetic fibers, such as a polyester, does not interact with the odorant (4) and allows automatic cutting with heating knife devices as used, for example, in film coating. or complexing.

Avantageusement, il s'agit d'un polymère non-tissé tel qu'une fibre polyester non-tissé, par exemple, à titre non limitatif, ayant une densité de 50 à 120g/m2.Advantageously, it is a nonwoven polymer such as a nonwoven polyester fiber, for example, without limitation, having a density of 50 to 120 g / m2.

Ce polyester non-tissé est inerte, car les fibres sont en matériau synthétique, ce qui lui permet de ne pas être oxydé par la substance odorante (4).This nonwoven polyester is inert because the fibers are made of synthetic material, which allows it to not be oxidized by the odorant (4).

De façon remarquable, avec un tel polyester non-tissé, et du fait de l'enchevêtrement des fibres non- tissées, la diffusion de la substance odorante (4) peut être de l'ordre de quelques jours à plusieurs semaines à l'air libre selon la quantité déposée et selon la formulation de la substance odorante (4).Remarkably, with such a non-woven polyester, and because of the entanglement of the non-woven fibers, the diffusion of the odorant substance (4) can be of the order of a few days to several weeks in the air free according to the quantity deposited and according to the formulation of the odorant substance (4).

Toutefois, ce mode de réalisation n'est pas limitatif de l'invention, la couche absorbante de support-réservoir pouvant être formée par toute matière susceptible de stocker et de restituer une substance odorante, ce qui inclut également des fibres de cellulose, des acétates de cellulose, et/ou d'autres polymères.However, this embodiment is not limiting of the invention, the absorbent layer of reservoir-holder may be formed by any material capable of storing and returning an odoriferous substance, which also includes cellulose fibers, acetates cellulose, and / or other polymers.

Comme illustré sur les figures 2 et 4, la couche absorbante de support-réservoir (1) est déformable et peut ainsi subir une opération de mise en relief pour modifier l'état de sa surface (1 A).As illustrated on figures 2 and 4 the absorbent reservoir-reservoir layer (1) is deformable and can thus be embossed to change the state of its surface (1A).

Cette opération peut être effectuée par une ou plusieurs étapes de grainage et/ou de gaufrage et/ou d'estampage. C'est ainsi qu'un aspect et un toucher particuliers de la surface de la couche absorbante de support-réservoir (1) peuvent être obtenus.This operation can be carried out by one or more graining and / or embossing and / or embossing steps. Thus, a particular appearance and feel of the surface of the reservoir-reservoir absorbent layer (1) can be obtained.

Par ailleurs, bien que cette caractéristique ne soit pas limitative de l'invention, le matériau utilisé pour former la couche absorbante de support-réservoir (1) est préférentiellement adapté pour être imprimé.Furthermore, although this feature is not limiting of the invention, the material used to form the absorbent support-tank layer (1) is preferably adapted to be printed.

Dans ce cas, il convient d'utiliser des encres d'impression compatibles avec la substance odorante (4) afin que celles-ci n'interagissent pas ni n'altèrent les caractéristiques olfactives de la substance odorante (4). Selon un mode de réalisation préféré mais non limitatif de l'invention, les encres d'impressions utilisées sont de type UV et sont durcies par photo-polymérisation lors d'une mise en relation par rayonnement U.V. (Ultraviolets). Le séchage des encres peut également être opéré par rayonnement I.R. (Infrarouges).In this case, printing inks compatible with the odorant (4) should be used so that they do not interact or alter the odor characteristics of the odorant (4). According to a preferred but non-limiting embodiment of the invention, the printing inks used are of the UV type and are cured by photopolymerization when placed in contact with U.V. radiation (ultraviolet). The drying of the inks can also be operated by I.R. radiation (Infrared).

Selon une variante dans la réalisation de l'invention illustrée sur les figures 3 et 4, le composite multicouche comporte également une couche barrière externe (5) sur la surface de la couche de support imprimable et/ou imprimée (3) qui n'est pas en contact avec la couche de polymère barrière (2).According to a variant in the embodiment of the invention illustrated on the figures 3 and 4 the multilayer composite also has an outer barrier layer (5) on the surface of the printable and / or printed support layer (3) which is not in contact with the barrier polymer layer (2).

Selon une particularité de réalisation qui n'est pas limitative de l'invention, la couche barrière externe (5) est réalisée par un film de polypropylène traité.According to a particular embodiment which is not limiting of the invention, the outer barrier layer (5) is made by a treated polypropylene film.

Le traitement du film polypropylène peut être opéré par un traitement au plasma qui permet le dépôt et/ou l'activation de certains groupements d'au moins un des composés qui forme la surface de la couche barrière externe (5).The treatment of the polypropylene film can be performed by a plasma treatment which allows the deposition and / or activation of certain groups of at least one of the compounds which form the surface of the outer barrier layer (5).

Dans une alternative de réalisation, la couche de polypropylène est traitée chimiquement.In an alternative embodiment, the polypropylene layer is chemically treated.

Selon une variante dans la réalisation de l'invention, la couche barrière externe (5) peut être formée par un vernis déposé sur la surface de la couche de support imprimable et/ou imprimée (3) qui n'est pas en contact avec la couche de polymère barrière (2). Ce vernis pouvant, par exemple, être durci par photo-polymérîsation U.V.According to a variant in the embodiment of the invention, the outer barrier layer (5) may be formed by a varnish deposited on the surface of the printable and / or printed support layer (3) which is not in contact with the barrier polymer layer (2). This varnish can, for example, be cured by photopolymerization U.V.

Avantageusement, cette couche barrière externe (5), permet d'empêcher la migration et la diffusion de substances odorantes (4) dans la couche de support imprimable et/ou imprimée (3) depuis la couche absorbante de support-réservoir (1) d'un premier composite multicouche disposé sous un second composite multicouche, en particulier lors de l'empilement, lors du stockage et lors du transport d'une pluralité de composites multicouche de l'invention, comme illustré sur la figure 7. Les deux dernières couches de support- réservoir (1) à l'extrémité de la pile peuvent être disposées en tête-bêche l'une par rapport à l'autre, c'est-à-dire en contact l'une de l'autre au niveau de leur face extérieure (1A), ce qui permet d'éviter ou de limiter la diffusion de la substance odorante (4) du fait de l'imperméabilité de la couche de polymère (2) barrière étanche située à l'extrémité de la pile.Advantageously, this outer barrier layer (5) makes it possible to prevent the migration and diffusion of odorous substances (4) in the printable and / or printed support layer (3) from the absorbent reservoir-reservoir layer (1). a first multilayer composite disposed under a second multilayer composite, in particular during stacking, during storage and during transport of a plurality of multilayer composites of the invention, as illustrated in FIG. figure 7 . The last two layers of reservoir support (1) at the end of the stack can be arranged head-to-tail with respect to each other, that is to say in contact with one of the other at their outer face (1A), which avoids or limits the diffusion of the odorant substance (4) due to the impermeability of the polymer layer (2) sealed barrier located at the end of the pile.

Cette couche barrière externe (5) peut, par exemple, selon ses caractéristiques, présenter une surface du composite multicouche de l'invention qui est en mesure d'être collée contre un support. Cette couche barrière externe (5) peut ainsi être collée et permet la fixation du composite multicouche sur un support tel que, par exemple et de façon non limitative, un magazine ou un élément publicitaire, ou encore un élément de présentation de type .L.V. (Publicité sur Lieu de Vente).This outer barrier layer (5) may, for example, according to its characteristics, have a surface of the multilayer composite of the invention which is able to be glued against a support. This outer barrier layer (5) can thus be bonded and allows the attachment of the multilayer composite on a support such as, for example and without limitation, a magazine or an advertising element, or a presentation element type .L.V. (Point of sale advertising).

Dans une alternative de réalisation, compatible avec la couche barrière externe (5) et illustrée sur la figure 6, le composite multicouche de l'invention comprend également au moins un axe d'articulation (6) pour permettre le recouvrement d'une première partie de la face extérieure (1A) de la première couche absorbante de support réservoir (1) qui n'est pas en contact avec la couche de polymère (2) sur une seconde partie de cette même face extérieure (1A). Toutes les couches (couche absorbante de support réservoir (1), couche de polymère barrière (2), couche de support imprimée et/ou imprimable (3) et couche barrière externe (5)) sont pliées conjointement.In an alternative embodiment, compatible with the outer barrier layer (5) and illustrated on the figure 6 , the multilayer composite of the invention also comprises at least one hinge pin (6) for allow the covering of a first portion of the outer face (1A) of the first reservoir support absorbent layer (1) which is not in contact with the polymer layer (2) on a second portion of the same outer face (1A). All layers (reservoir support absorbent layer (1), barrier polymer layer (2), printed and / or printable carrier layer (3) and outer barrier layer (5)) are folded together.

Cet axe d'articulation (6) peut être réalisé, par exemple, par un rainage ou un pliage axial. Ainsi, lorsque la couche absorbante de support réservoir (1) comprend une substance odorante (4), le recouvrement par repliement l'une sur l'autre des deux parties de la face de la couche absorbante de support réservoir (1) dans une position fermée permet de limiter voire de stopper la diffusion de la substance odorante (4).This hinge axis (6) can be achieved, for example, by creasing or axial folding. Thus, when the reservoir support absorbent layer (1) comprises an odoriferous substance (4), the fold-over covering of the two parts of the face of the reservoir support absorbent layer (1) in one position closed allows to limit or even stop the diffusion of the odoriferous substance (4).

La libération par diffusion de la substance odorante (4) est alors effectuée par un utilisateur qui ouvre et/ou déplie le composite multicouche de l'invention (ouverture du magazine, ouverture de la carte échantillon, ouverture d'un dépliant de marketing direct...).The diffusion release of the odorant substance (4) is then performed by a user who opens and / or unfolds the multilayer composite of the invention (opening the magazine, opening the sample card, opening a direct marketing leaflet. ..).

Ainsi, le composite multicouche de l'invention permet de réaliser un support pour la diffusion d'une substance odorante (4) qui soit en mesure d'être associé avec un élément de communication visuelle imprimé (texte, marque, message publicitaire, etc.) tant sur la partie formée par la couche de support imprimable (3) que sur la partie formée par la couche absorbante de support réservoir (1).Thus, the multilayer composite of the invention makes it possible to provide a support for the diffusion of an odorous substance (4) that is able to be associated with a printed visual communication element (text, brand, advertising message, etc.). ) both on the part formed by the printable support layer (3) and on the part formed by the reservoir support absorbent layer (1).

Egalement, le composite multicouche de l'invention permet d'ajouter un effet de toucher particulier sur la partie formée par la couche absorbante de support réservoir (1) compte tenu de la texture fibreuse de la couche absorbante de support réservoir et compte tenu d'une ou plusieurs étapes de mise en relief ayant été pratiquées (grainage, gaufrage, estampage...)Also, the multilayer composite of the invention makes it possible to add a particular touch effect on the part formed by the absorbent layer of reservoir support (1) taking into account the fibrous texture of the absorbent layer of reservoir support and taking into account the one or more relief steps having been practiced (graining, embossing, embossing ...)

Ainsi formée la couche absorbante de support réservoir (1) permet de mettre en éveil les trois sens que sont l'odorat, la vue et le toucher.Thus formed the absorbent layer of reservoir support (1) allows to awake the three senses of smell, sight and touch.

La fabrication de ce composite multicouche de l'invention impose plusieurs étapes successives dans un procédé de fabrication illustré sur les figures 5 et 8, et dont l'ordre peut être différent pour certaines d'entre elles.The manufacture of this multilayer composite of the invention imposes several successive steps in a manufacturing process illustrated on the figures 5 and 8 , and whose order may be different for some of them.

Ainsi, le procédé de fabrication du composite multicouche de l'invention comprend notamment :

  • une étape de fixation (E1), par une de ses faces, d'une couche de polymère barrière (2) sur le revêtement formant une couche absorbante de support-réservoir (1) destinée à recevoir une substance odorante (4) pour être diffusée, de façon à réaliser un complexe bicouche couche absorbante de support réservoir /couche de polymère barrière,
  • une étape de fixation (E2) d'une couche de support imprimable et/ou imprimée (3) sur la face de la couche de polymère barrière (2) qui n'est pas liée à la couche absorbante de support réservoir (1),
  • une étape de dépôt (E6) d'une substance odorante (4) sur la couche absorbante de support-réservoir (1).
Thus, the method of manufacturing the multilayer composite of the invention comprises in particular:
  • a step of fixing (E1), by one of its faces, a barrier polymer layer (2) on the coating forming a reservoir-support absorbent layer (1) intended to receive an odoriferous substance (4) to be diffused , so as to produce a bilayer complex absorbent layer of reservoir support / barrier polymer layer,
  • a step of fixing (E2) a printable and / or printed support layer (3) on the face of the barrier polymer layer (2) which is not bonded to the reservoir support absorbent layer (1),
  • a deposition step (E6) of an odorant substance (4) on the reservoir-reservoir absorbent layer (1).

L'étape de fixation (E1) de la couche absorbante de support-réservoir (1) sur la couche de polymère barrière (2) est opérée par doublage et/ou complexage, par exemple et de façon non limitative par thermo-complexage. Ainsi, aucune substance adhésive, qui pourrait entrer en interaction avec la substance odorante (4) imprégnant la couche absorbante.de support-réservoir (1) et altérer les propriétés de ladite substance odorante (4), n'est présente entre la couche absorbante de support-réservoir (1) et la couche de polymère barrière (2)The fixing step (E1) of the reservoir-reservoir absorbent layer (1) on the barrier polymer layer (2) is performed by doubling and / or complexing, for example and without limitation by thermo-complexing. Thus, no adhesive substance, which could interact with the odorant (4) impregnating the absorbent layer reservoir-carrier (1) and alter the properties of said odoriferous substance (4), is present between the absorbent layer tank-support (1) and the barrier polymer layer (2)

L'étape de fixation (E2) de la couche de support imprimable et/ou imprimée (3) sur la couche de polymère barrière (2) est effectuée par laminage, complexage, pelliculage ou adhésivage.The fixing step (E2) of the printable and / or printed support layer (3) on the barrier polymer layer (2) is carried out by rolling, laminating, laminating or tacking.

L'étape de dépôt (E6) quant à elle peut être effectuée par enduction, impression et/ou imprégnation de la surface de la couche absorbante de support-réservoir (1) par la substance odorante (4) destinée à être diffusée. Cette étape de dépôt peut faire intervenir des techniques d'impression par sérigraphie, flexographie ou offset. Ces techniques permettent une répartition de la substance odorante (4) sur toute ou partie de la surface de la couche absorbante de support-réservoir (1) et permettent de faire varier la quantité de substance odorante (4) déposée.The deposition step (E6) can be carried out by coating, printing and / or impregnating the surface of the reservoir-reservoir absorbent layer (1) with the odorant (4) intended to be diffused. This depositing step may involve printing techniques by screen printing, flexography or offset. These techniques allow a distribution of the odorant substance (4) on all or part of the surface of the absorbent layer of reservoir-tank (1) and allow to vary the amount of odorant (4) deposited.

Lors de la fabrication du composite multicouche, comme illustré sur les figures 5 et 8, il peut être nécessaire d'opérer une impression (E3) sur la surface de la couche absorbante de support-réservoir (1) par un dispositif d'impression approprié (7). Cette impression (E3) peut s'effectuer soit au préalable à l'étape de fixation (E1) de la couche de polymère barrière (2) sur la couche absorbante de support-réservoir (1), soit postérieurement à cette étape, mais préférentiellement au préalable de l'étape de dépôt (E6) de la substance odorante (4) sur la couche absorbante de support-réservoir (1).In the manufacture of the multilayer composite, as illustrated in figures 5 and 8 it may be necessary to print (E3) on the surface of the reservoir-reservoir absorbent layer (1) by a suitable printing device (7). This printing (E3) can take place either before the fixing step (E1) of the barrier polymer layer (2) on the absorbent support-reservoir layer (1), or after this step, but preferentially prior to the deposition step (E6) of the odorant substance (4) on the absorbent reservoir-reservoir layer (1).

De même, le procédé peut comprendre une étape d'impression (E4) de la couche de support imprimable (3) par un dispositif et/ou système d'impression approprié. Cette étape d'impression (E4) est préférentiellement effectuée au préalable à l'étape de dépôt (E6) de la substance odorante (4) sur la couche absorbante de support-réservoir (1). Selon le type de procédé recherché, cette étape d'impression (E4) peut être effectuée soit une fois que la couche de support imprimable (3) est fixée sur la face de la couche de polymère barrière (2) qui n'est pas en contact avec la couche absorbante de support-réservoir (1), soit au préalable à cette étape de fixation (E2).Similarly, the method may include a step of printing (E4) the printable support layer (3) by a suitable printing device and / or system. This printing step (E4) is preferably carried out beforehand at the deposition step (E6) of the odorous substance (4) on the absorbent layer of reservoir-support (1). Depending on the type of process desired, this printing step (E4) can be performed either after the printable support layer (3) is attached to the face of the barrier polymer layer (2) which is not contact with the reservoir-reservoir absorbent layer (1), either before this fixing step (E2).

De même, au préalable à l'étape de dépôt (E6) d'une substance odorante (4) sur la couche absorbante de support-réservoir (1), le procédé peut comprendre une étape de fixation (E5) d'une couche barrière externe (5) sur la seconde face de la couche de support imprimable et/ou imprimé (3).Similarly, prior to the deposition step (E6) of an odorant substance (4) on the reservoir-reservoir absorbent layer (1), the method may comprise a step (E5) of fixing a barrier layer external (5) on the second side of the printable and / or printed support layer (3).

Egalement, au préalable à l'étape de dépôt (E6), comme illustré sur les figures 5 et 8, le procédé peut comprendre une de mise en relief (E7) par grainage, estampage ou gaufrage de l'ensemble du composite multicouche ou de seulement une ou plusieurs des couches assemblées du composite.Also, prior to the filing step (E6), as shown on the figures 5 and 8 the method may include embossing (E7) by embossing, embossing or embossing the entire multilayer composite or only one or more of the composite layers of the composite.

Le composite multicouche étant réalisé, et la substance odorante (4) étant éventuellement déposée (E6), le procédé peut encore comprendre une étape de façonnage (E8). Cette étape de façonnage (E8) consiste, en une ou plusieurs opérations d'une liste comprenant par exemple une dorure, une découpe, un rainage.The multilayer composite being produced, and the odorous substance (4) being optionally deposited (E6), the method may further comprise a shaping step (E8). This shaping step (E8) consists in one or more operations of a list comprising for example a gilding, a cut, a creasing.

Selon un premier mode de réalisation particulier qui n'est pas limitatif du principe de l'invention, l'homogénéité de la répartition et la détermination de la surface destinée à recouverue par la substance odorante (4) est définie par un écran formant un tamis de maille variable (principe similaire à la technique d'impression de type sérigraphie). Par exemple, à titre non limitatif, il est possible de déposer par ce procédé une quantité de substance odorante de 12 à 20g/m2.According to a first particular embodiment which is not limiting to the principle of the invention, the homogeneity of the distribution and the determination of the surface intended to be covered by the odorant substance (4) is defined by a screen forming a sieve variable mesh (principle similar to the screen printing technique). For example, without limitation, it is possible to deposit by this method an amount of odorous substance of 12 to 20g / m2.

Selon un second mode de réalisation particulier qui n'est pas limitatif du principe de l'invention, l'homogénéité de répartition peut également faire intervenir un anilox, qui est un cylindre comportant sur sa surface périphérique différentes formes de gravures ou d'alvéoles qui, selon leurs formes et volumes respectifs et en combinaison avec un blanchet, participent au de la quantité de substance odorante (4) destinée à être déposée sur la couche absorbante de support-réservoir (1) (principe similaire à la technique d'impression de type flexographie). Par exemple, à titre non limitatif, il est possible de déposer par ce procédé une quantité de substance odorante (4) de 3 à 10g/m2.According to a second particular embodiment which is not limiting to the principle of the invention, the homogeneity of distribution may also involve an anilox, which is a cylinder having on its peripheral surface various forms of etchings or cavities which , depending on their respective shapes and volumes and in combination with a blanket, participate in the amount of odorant (4) to be deposited on the absorbent reservoir-reservoir layer (1) (principle similar to the printing technique of type flexography). For example, without limitation, it is possible to deposit by this method an amount of odorant (4) of 3 to 10g / m2.

Selon un troisième mode de réalisation particulier, une surface métallique formant par exemple une plaque est utilisée pour transférer la substance odorante (4) sur une surface élastomère formant par exemple un blanchet. La surface élastomère est positionnée en contact avec la surface de la couche absorbante de support-réservoir (1) (principe similaire à la technique d'impression de type offset). Par exemple, à titre non limitatif, il est possible de déposer par ce procédé une quantité de substance odorante (4) de l'ordre d'un ou de quelques g/ m2.According to a third particular embodiment, a metal surface forming for example a plate is used to transfer the odorant substance (4) onto an elastomeric surface forming for example a blanket. The elastomeric surface is positioned in contact with the surface of the reservoir-reservoir absorbent layer (1) (similar principle to the offset type printing technique). For example, without limitation, it is it is possible to deposit by this method an amount of odoriferous substance (4) of the order of one or a few g / m2.

Le composite multicouche étant réalisé et éventuellement imprimé, et la substance odorante (4) étant déposée, le système de l'invention permet un transport et un stockage du composite multicouche forme de feuilles ou aplats empilés de telle sorte que la diffusion ou la migration de la substance odorante (4) sont contrôlés.The multilayer composite being produced and possibly printed, and the odorant substance (4) being deposited, the system of the invention allows a transport and storage of the multilayer composite form sheets or flat stacked so that the diffusion or migration of the odorant (4) are controlled.

Selon un mode de réalisation préférentiel, le procédé de l'invention comprend également une étape de pliage (E10) du composite de sorte qu'une première partie de la face extérieure (1 A) de la couche absorbante de support réservoir (1) qui n'est pas en contact avec la couche de polymère barrière (2) recouvre une seconde partie de cette même face extérieure (1 A) de la couche absorbante de support réservoir (1). Préférentiellement, cette opération de pliage (E10) est opérée postérieurement à l'étape de dépôt (E6) d'une substance odorante (4) sur le composite. Eventuellement, l'étape de dépôt (E6) de la substance odorante (4) sur la couche absorbante de support réservoir (1) peut être réalisée après toutes les autres étapes de fabrication dans un point de vente lors de la distribution ou de la présentation finale du multicouche au client.According to a preferred embodiment, the method of the invention also comprises a folding step (E10) of the composite so that a first portion of the outer face (1A) of the reservoir support absorbent layer (1) which is not in contact with the barrier polymer layer (2) covers a second portion of the same outer face (1A) of the reservoir support absorbent layer (1) . Preferably, this folding operation (E10) is performed after the deposition step (E6) of an odorant substance (4) on the composite. Optionally, the deposition step (E6) of the odorant substance (4) on the reservoir support absorbent layer (1) can be performed after all the other manufacturing steps in a point of sale during the distribution or presentation. final multilayer to the customer.

Par ailleurs, le système de fabrication, permettant la mise en oeuvre du procédé de l'invention, peut être formé par un unique dispositif ou une pluralité de dispositifs séparés entre eux. Ces dispositifs comportent alors un ou plusieurs postes arrangés pour effectuer au moins une des différentes opérations ou étapes du procédé de fabrication du composite multicouche de l'invention.Furthermore, the manufacturing system, allowing the implementation of the method of the invention, can be formed by a single device or a plurality of devices separated from each other. These devices then comprise one or more stations arranged to perform at least one of the various operations or steps of the method of manufacturing the multilayer composite of the invention.

Selon un mode de réalisation particulier mais qui n'est pas limitatif de l'invention illustré sur la figure 8, le système de l'invention comporte une pluralité de postes, chacun étant adapté pour permettre la réalisation d'au moins une des étapes : fixation des couches entre elles (E1, E2, E5), impression (E3, E4), dépôt de substance odorante (E6), mise en relief (E7) ou façonnage (E8) du procédé de fabrication de l'invention.According to a particular embodiment but which is not limiting of the invention illustrated on the figure 8 the system of the invention comprises a plurality of stations, each being adapted to allow the realization of at least one of the steps: fixing the layers together (E1 , E2, E5), printing (E3, E4), odorant deposition (E6), embossing (E7) or shaping (E8) of the manufacturing method of the invention.

Selon un mode de réalisation préféré qui n'est pas limitatif de l'invention, le dispositif comprend également une unité centrale qui permet la coordination du fonctionnement des différents postes du système. Cette coordination peut concerner aussi bien simplement deux postes que l'ensemble des postes du système, l'unité centrale pouvant contrôler au moins un poste du dispositif.According to a preferred embodiment which is not limiting of the invention, the device also comprises a central unit which allows the coordination of the operation of the various stations of the system. This coordination can concern just two stations as well as all the stations of the system, the central unit can control at least one position of the device.

Selon un mode de réalisation particulier, le système de fabrication peut faire intervenir une pluralité de bobines dont chacune correspond à un enroulement d'une des couches du composite multicouche avant que celle-ci ne soit intégrée au composite de l'invention.According to a particular embodiment, the manufacturing system may involve a plurality of coils each of which corresponds to a winding of one of the layers of the multilayer composite before it is integrated into the composite of the invention.

Le système de l'invention permet un dévidement (ou déroulement) de ces bobines arrangées pour permettre la réalisation des différentes étapes successives du procédé. Ainsi, les bobines de la couche absorbante de support-réservoir (1) et de la couche de polymère barrière (2) sont dévidées en premier lieu afin de permettre leur fixation (E1) au niveau d'une surface commune. Puis, la bobine de la couche de support imprimable et/ou imprimé (3) est dévidée pour permettre sa fixation (E2) sur la face de la couche de polymère barrière (2) non orientée vers la couche absorbante de support-réservoir (1). De même, selon le type de composite souhaité, une bobine comportant le revêtement destiné à former la couche barrière externe (5) est également dévidée pour recouvrir la face de la couche de support imprimable et/ou imprimé (3) située sur la face non orientée vers la couche de polymère barrière (2).The system of the invention allows unwinding (or unwinding) of these coils arranged to allow the realization of the different successive steps of the method. Thus, the coils of the reservoir-reservoir absorbent layer (1) and the barrier polymer layer (2) are unwound in the first place to allow their attachment (E1) at a common surface. Then, the reel of the printable and / or printed support layer (3) is unwound in order to allow its attachment (E2) to the face of the barrier polymer layer (2) not oriented towards the reservoir-reservoir absorbent layer (1). ). Likewise, depending on the type of composite desired, a coil comprising the coating intended to form the outer barrier layer (5) is also unwound to cover the face of the printable and / or printed support layer (3) located on the non-facing face. oriented towards the barrier polymer layer (2).

Comme illustré sur la figure 8, le système faisant intervenir des bobines, la présence d'au moins un poste de découpe est alors indispensable pour assurer la mise au format (E9) du composite multicouche selon un format souhaité. Cette découpe (E9) de la bande de composite partiellement ou totalement formée peut faire intervenir une lame coupante rectiligne afin d'obtenir une pluralité de pièces empilables du composite dites aplats ou feuilles.As illustrated on the figure 8 the system involving coils, the presence of at least one cutting station is then essential to ensure the formatting (E9) of the multilayer composite in a desired format. This cut (E9) of the partially or totally formed composite strip may involve a cutting blade rectilinear so as to obtain a plurality of stackable parts of the composite called flat or leaves.

Alternativement, cette lame rectiligne peut être remplacée par un emporte pièce permettant une découpe selon un format défini de la bande de composite.Alternatively, this rectilinear blade can be replaced by a punch allowing cutting in a defined format of the composite strip.

De même, selon la composition formant le composite multicouche de l'invention, la lame utilisée peut être une lame thermique rectiligne qui permet une coupe nette et rapide du composite par fusion tout en évitant une présence indésirable de fibres qui se détacheraient du composite et viendraient créer des désordres techniques lors des procédés d'impression. Les composites découpés au format souhaité sont alors récupérés et rangés sous forme d'aplats ou feuilles manuellement ou par une recette automatique.Similarly, depending on the composition forming the multilayer composite of the invention, the blade used may be a straight thermal blade that allows a clean and fast cut of the composite by melting while avoiding an undesirable presence of fibers that would come off the composite and come create technical disorders during printing processes. The cut-out composites in the desired format are then recovered and stored as flat areas or sheets manually or by automatic recipe.

Comme déjà décrit précédemment, la figure 5 qui propose une représentation schématique des différentes étapes du procédé de fabrication du composite de l'invention montre clairement que certaines étapes du procédé, notamment les étapes d'impression (E3, E4), de mise en relief (E7), ou encore de découpe (E9), peuvent être effectuée à des moments différents du procédé par rapport aux étapes principales de formation du bi-couche (E1) puis du tri-couche (E2) du composite et de dépôt de la substance odorante (E6) du composite.As already described above, the figure 5 which proposes a schematic representation of the various steps of the manufacturing process of the composite of the invention clearly shows that certain process steps, in particular the printing (E3, E4), embossing (E7), or cutting steps (E9) can be performed at different times of the process with respect to the main steps of formation of the bilayer (E1) and then the tri-layer (E2) of the composite and deposition of the odorant substance (E6) of the composite.

Le système de mise en oeuvre du procédé de l'invention comporte une pluralité de dont chacun est organisé, arrangé ou conçu pour opérer respectivement au moins une étape du procédé de l'invention précédemment décrit. Selon un mode de réalisation non limitatif de l'invention, les postes du système de mise en oeuvre du procédé de l'invention peuvent être positionnés sur un ou plusieurs sites de production différents. Les produits obtenus au niveau de chacun de ces postes peuvent alors être transportés d'un site à l'autre pour que le procédé puisse continuer d'être mis en oeuvre. De même, le système de l'invention peut intégrer une unité centrale qui permet la gestion et la coordination d'au moins deux postes du système dans la production du composite.The implementation system of the method of the invention comprises a plurality of which each is organized, arranged or designed to operate respectively at least one step of the method of the invention described above. According to a non-limiting embodiment of the invention, the stations of the implementation system of the method of the invention can be positioned on one or more different production sites. The products obtained at each of these stations can then be transported from one site to another so that the process can continue to be implemented. Similarly, the system of the invention can integrate a central unit that allows the management and coordination of at least two system positions in the production of the composite.

II doit être évident pour les personnes versées dans l'art que la présente invention permet des modes de réalisation sous de nombreuses autres formes spécifiques sans l'éloigner du domaine d'application de l'invention comme revendiqué. Par conséquent, les présents modes de réalisation doivent être considérés à titre d'illustration mais peuvent être modifiés dans le domaine défini par la portée des revendications jointes.It should be obvious to those skilled in the art that the present invention allows embodiments in many other specific forms without departing from the scope of the invention as claimed. Therefore, the present embodiments should be considered by way of illustration but may be modified in the field defined by the scope of the appended claims.

Claims (14)

Composite multicouche imprimé pour diffusion d'une substance odorante (4), caractérisé en ce que le composite multicouche comprend : - une couche absorbante de support-réservoir (1), adaptée pour être imprimée et pour recevoir par absorption une substance odorante (4) destinée à être diffusée, - une couche de support imprimable et/ou imprimée (3), - une couche de polymère barrière (2), tel qu'un film polymère, disposée entre la couche de support imprimable et/ou imprimée (3) et la couche absorbante de support-réservoir (1), pour empêcher une migration de la substance odorante (4) entre les couches de support (1,3), - au moins un axe d'articulation (6) pour permettre le recouvrement d'une première partie de la face extérieure (1A) de la couche absorbante de support réservoir (1) qui n'est pas en contact avec la couche de polymère barrière (2) sur une seconde partie de cette même face extérieure (1A) de la couche absorbante de support réservoir (1). Multilayer composite printed for diffusion of an odorant substance (4), characterized in that the multilayer composite comprises: an absorbent reservoir-reservoir layer (1) adapted to be printed and to receive by absorption an odoriferous substance (4) intended to be diffused, a printable and / or printed support layer (3), a barrier polymer layer (2), such as a polymer film, disposed between the printable and / or printed support layer (3) and the reservoir-reservoir absorbent layer (1), to prevent migration of the substance fragrant (4) between the support layers (1,3), at least one hinge pin (6) to allow the covering of a first portion of the outer face (1A) of the reservoir support absorbent layer (1) which is not in contact with the barrier polymer layer (2) on a second portion of the same outer face (1A) of the reservoir support absorbent layer (1). Composite multicouche selon la revendication 1, caractérisé en ce que la couche de support imprimable et/ou imprimée (3) est en fibres de cellulose.Multilayer composite according to Claim 1, characterized in that the printable and / or printed support layer (3) is made of cellulose fibers. Composite multicouche selon la revendication 1 ou 2, caractérisé en ce que la couche de polymère barrière (2) est un film polymère en PET ou en polypropylène (OPP).Multilayer composite according to Claim 1 or 2, characterized in that the barrier polymer layer (2) is a PET or polypropylene (OPP) polymer film. Composite multicouche selon l'une des revendications 1 à 3, caractérisé en ce que la couche absorbante de support-réservoir (1) de la substance odorante (4) est réalisée par au moins un tissu et/ou au moins un polymère en fibres synthétiques.Multilayer composite according to one of Claims 1 to 3, characterized in that the absorbent support-reservoir layer (1) of the odorant substance (4) is produced by at least one fabric and / or at least one polymer made of synthetic fibers. . Composite multicouche selon la revendication 4, caractérisé en ce que le polymère en fibres synthétiques de la couche absorbante de support-réservoir (1) est non-tissé.Multilayer composite according to claim 4, characterized in that the synthetic fiber polymer of the reservoir-carrier absorbent layer (1) is non-woven. Composite multicouche selon la revendication 5, caractérisé en ce que le polymère en fibres synthétiques de la couche absorbante de support-réservoir (1) est un polyester non-tissé.Multilayer composite according to claim 5, characterized in that the synthetic fiber polymer of the reservoir-carrier absorbent layer (1) is a nonwoven polyester. Composite multicouche selon l'une des revendications précédentes, caractérisé en ce que la couche de polymère barrière (2) entre la couche absorbante de support-réservoir (1) et la couche de support imprimable et/ou imprimée (3) forme une première barrière de migration dite interne, le composite multicouche comprenant également une couche barrière (5) disposée sur une seconde face de la couche imprimable et/ou imprimée (3) formant une seconde barrière de migration dite externe.Multilayer composite according to one of the preceding claims, characterized in that the barrier polymer layer (2) between the reservoir-support absorbent layer (1) and the printable and / or printed support layer (3) forms a first barrier so-called internal migration, the multilayer composite also comprising a barrier layer (5) disposed on a second face of the printable and / or printed layer (3) forming a second so-called external migration barrier. Composite multicouche selon l'une des revendications précédentes, caractérisé en ce que la substance odorante (4) déposée sur la couche absorbante de support-réservoir (1) est composée d'au moins une huile essentielle.Multilayer composite according to one of the preceding claims, characterized in that the odorant (4) deposited on the absorbent support-reservoir layer (1) is composed of at least one essential oil. Procédé de fabrication d'un composite multicouche pour diffusion d'une substance odorante selon l'une des revendications 1 à 8, caractérisé en ce que le procédé comprend notamment : - une étape de fixation, par une de ses faces, d'une couche de polymère barrière (2), tel qu'un film polymère, sur un revêtement formant une couche absorbante de support-réservoir (1), de façon à réaliser un complexe couche absorbante de support réservoir(1) /couche de polymère barrière (2), - une étape de fixation d'une couche de support imprimable et/ou imprimée (3) sur la face de la couche de polymère barrière (2) qui n'est pas en contact avec la couche absorbante de support- réservoir (1). - une étape de dépôt d'une substance odorante (4) par absorption sur le revêtement formant la couche absorbante de support-réservoir (1), - une étape de pliage (E10) du composite de sorte qu'une première partie de la face extérieure (1A) de la couche absorbante de support réservoir (1) qui n'est pas en contact avec la couche de polymère barrière (2) recouvre une seconde partie de cette même face extérieure (1 A). Process for the production of a multilayer composite for diffusing an odorous substance according to one of Claims 1 to 8, characterized in that the method notably comprises: a step of fixing, by one of its faces, a barrier polymer layer (2), such as a polymer film, on a coating forming an absorbent layer of reservoir-support (1), so as to achieve a complex absorbent layer of reservoir support (1) / barrier polymer layer (2), a step of fixing a printable and / or printed support layer (3) on the face of the barrier polymer layer (2) which is not in contact with the reservoir-reservoir absorbent layer (1). a step of depositing an odorant substance (4) by absorption on the coating forming the absorbent layer of reservoir-support (1), a folding step (E10) of the composite so that a first portion of the outer face (1A) of the reservoir support absorbent layer (1) which is not in contact with the polymer layer; barrier (2) covers a second portion of this same outer face (1A). Procédé de fabrication selon la revendication 9, caractérisé en ce que la fixation de la couche absorbante de support-réservoir (1) à la couche de polymère barrière (2) est opérée par doublage et/ou thermo-complexage.Manufacturing method according to claim 9, characterized in that the fixing of the reservoir-support absorbent layer (1) to the barrier polymer layer (2) is carried out by doubling and / or thermo-complexing. Procédé de fabrication selon les revendications 9 et 10, caractérisé en ce que le procédé comprend, préalablement à l'étape de dépôt, une étape d'impression sur la surface de la couche de support imprimable et/ou imprimée (3) et/ou de la surface de la couche absorbante de support-réservoir (1) extérieure qui n'est pas en contact avec la couche de polymère barrière (2).Manufacturing method according to claims 9 and 10, characterized in that the method comprises, prior to the deposition step, a printing step on the surface of the printable and / or printed support layer (3) and / or the surface of the outer support-reservoir absorbent layer (1) which is not in contact with the barrier polymer layer (2). Procédé de fabrication selon l'une des revendications 9 à 11, caractérisé en ce que le procédé comprend également une étape de fixation d'une couche barrière externe (5) sur la face de la couche de support imprimable et/ou imprimé (3) non orientée vers la couche absorbante de support-réservoir (1) du composite.Manufacturing method according to one of claims 9 to 11, characterized in that the method also comprises a step of fixing an outer barrier layer (5) on the face of the printable and / or printed support layer (3) not oriented towards the reservoir-support absorbent layer (1) of the composite. Procédé de fabrication selon l'une des revendications 9 à 12, caractérisé en ce que l'étape de dépôt d'une substance odorante (4) est opérée par absorption de la substance sur une surface définie de la couche absorbante de support-réservoir (1).Production method according to one of claims 9 to 12, characterized in that the step of depositing an odorant substance (4) is performed by absorption of the substance on a defined surface of the reservoir-reservoir absorbing layer ( 1). Système de fabrication d'un composite multicouche pour diffusion d'une substance odorante (4) caractérisé en ce qu'il est adapté pour la mise en oeuvre d'un procédé de fabrication selon une des revendications 9 à 13, le système comprenant notamment : - un poste de fixation d'une couche de support imprimable et/ou imprimée (3) sur la face de la couche de polymère barrière (2) qui n'est pas en contact avec la couche absorbante de support-réservoir (1), ce poste de fixation recevant un composite formé par un bicouche incluant la couche absorbante de support-réservoir (1) sur laquelle est fixée une couche de polymère barrière (2), - un poste de dépôt d'une substance odorante (4) sur la couche absorbante de support-réservoir (1), - un poste de pliage du composite de sorte qu'une première partie de la face extérieure (1A) de la couche absorbante de support réservoir (1) qui n'est pas en contact avec la couche de polymère barrière (2) recouvre une seconde partie de cette même face extérieure (1 A). A system for manufacturing a multilayer composite for diffusion of an odorant (4) characterized in that it is adapted for implementing a method of manufacturing according to one of claims 9 to 13, the system including: a station for fixing a printable and / or printed support layer (3) on the face of the barrier polymer layer (2) that is not in contact with the reservoir-reservoir absorbent layer (1), this fixing station receiving a composite formed by a bilayer including the reservoir-support absorbent layer (1) on which is fixed a barrier polymer layer (2), a station for depositing an odorous substance (4) on the absorbent layer of reservoir-support (1), a bending station for the composite so that a first part of the outer face (1A) of the reservoir support absorbent layer (1) which is not in contact with the barrier polymer layer (2) covers a second part of this same outer face (1 A).
EP12168010.2A 2011-05-20 2012-05-15 Multilayer composite for diffusing odorous substances and manufacturing method Active EP2524619B1 (en)

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FR2975268B1 (en) 2014-01-24
FR2975268A1 (en) 2012-11-23

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