WO1991012146A2 - Decorative sheets comprising metallized or iridescent plastic flakes - Google Patents

Decorative sheets comprising metallized or iridescent plastic flakes Download PDF

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Publication number
WO1991012146A2
WO1991012146A2 PCT/FR1991/000084 FR9100084W WO9112146A2 WO 1991012146 A2 WO1991012146 A2 WO 1991012146A2 FR 9100084 W FR9100084 W FR 9100084W WO 9112146 A2 WO9112146 A2 WO 9112146A2
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
sheet according
metallized
particles
iridescent
Prior art date
Application number
PCT/FR1991/000084
Other languages
French (fr)
Other versions
WO1991012146A3 (en
Inventor
Claude Perrin
Gilles Clerc
François Rivat
Philippe Ferrand
Original Assignee
Arjo Wiggins S.A.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Arjo Wiggins S.A. filed Critical Arjo Wiggins S.A.
Priority to DE69100943T priority Critical patent/DE69100943T2/en
Priority to AU72365/91A priority patent/AU651809B2/en
Priority to AT91903889T priority patent/ATE99604T1/en
Publication of WO1991012146A2 publication Critical patent/WO1991012146A2/en
Publication of WO1991012146A3 publication Critical patent/WO1991012146A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/0469—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
    • B44C5/0484—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper containing metallic elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F1/00—Designs or pictures characterised by special or unusual light effects
    • B44F1/08—Designs or pictures characterised by special or unusual light effects characterised by colour effects
    • B44F1/14—Iridescent effects

Definitions

  • the invention relates to a decorative sheet usable for example
  • this sheet comprising metallic or iridescent plastic flakes.
  • This sheet can also be an overlay sheet.
  • the invention further relates to a composition for printing such a decorative sheet.
  • laminates have been used as materials in homes and commercial and industrial premises. Typical applications of such laminates are the surface coating of walls, table tops, furniture and the like.
  • the so-called high pressure laminates are produced from a core consisting of sheets impregnated with resin.
  • the sheets are generally sheets of kraft paper which has been impregnated with a thermosetting resin and more particularly with a phenolic resin.
  • the sheets are dried, cut, then stacked on top of each other.
  • the number of sheets in the stack depends on the applications and can vary between 3 and 9, but can be higher.
  • a decorative sheet is then placed on the pile of sheets constituting the core, which is generally a sheet of paper bearing a printed or light-colored pattern, and impregnated with a thermosetting resin which does not blacken with heat, for example of
  • elamine-formaldehyde resins benzoguanamine-formaldehyde resins, unsaturated polyester resins.
  • a protective cover sheet without a pattern and transparent in the laminate, is placed above the decorative sheet. final.
  • this protective sheet is called "over-lay”.
  • This overlay sheet is traditionally made by draining an aqueous suspension of unrefined cellulose fibers. The stack of impregnated sheets is then placed in a press fitted with a sheet giving the surface condition. Then, the stack is densified by heating and pressing to obtain a unitary structure.
  • thermosetting resins are transformed into thermosetting form and an extremely hard material with a decorative effect is obtained.
  • So-called low pressure laminates are produced in a similar manner to that of high pressure laminates, but the decorative sheet is laminated directly on a particle board or any other basic support.
  • the decorative sheet is traditionally made in the following manner.
  • a sheet of paper is made by draining on a flat canvas an aqueous suspension of bleached, long and / or short cellulose fibers, fillers, retention agents, binders.
  • the sheet thus formed is drained, pressed and dried to form a sheet of paper.
  • This sheet is then printed.
  • the impression usually made is a gravure printing, by means of engraved rollers.
  • the engraving technique consists in making a drawing, for example reproducing a wood or a purely fancy artistic drawing. Then we take the photograph of this drawing and from the films obtained, we engrave one or more printing rollers. Each cylinder then passes through an ink bath, and the indentations or imprints engraved in the cylinder are filled with ink which is then transferred to the paper. Generally one to three separate and successive prints are made using one to three rollers.
  • Decorative sheets for laminate panels are already known which are printed using iridescent mineral pigments.
  • the decorative sheets have different colors depending on the viewing angle. Such sheets have been described in the French patent of the applicant FR-A-2,442,719.
  • the brightening agent consists of powder coated with titanium oxide.
  • This powder can for example be a metallic powder, mica, mother-of-pearl.
  • This brightening agent has a particle diameter of 10 to 60 micrometers. It is mentioned that if the particle size is greater than 60 micrometers, the micas suspended in the binder will tend to precipitate.
  • the surface of the powder is coated with titanium oxide by melting the titanium oxide.
  • the papers obtained according to this Japanese application therefore include relatively expensive products because they are not easy to obtain due to the small particle size Terur which requires significant processing.
  • the method of coating by fusion of titanium oxide is not easy to implement.
  • DOW CHEMICAL British patent GB-1 107 341 describes a paper intimately containing a large number of iridescent plastic particles made up of several parallel layers of thermoplastic resins, two adjacent layers having different refractive indices. It is a decorative paper that is not specifically intended for laminates; it is neither mentioned that the particles are especially resistant to heat, solvents and light nor that it is possible to put a protective sheet without attenuating the iridescent effect.
  • the effects obtained with powders are uniform because the particles are spherical and of small particle size.
  • the powders according to the prior art due to their spherical shape and their small particle size have the disadvantages of settling easily and having a low covering power.
  • the particles are also subjected to high temperatures, of the order of about 160 ° C., during the stratification of the sheets.
  • laminates when in use, are often subjected to natural or artificial light for extended periods.
  • the applicant has described in French patent application FR-A-8905541 a sheet intended to be subjected to the prolonged action of light, having a first shade in natural light of wavelength between 400 and 800 nanometers and a second shade different from the first, in artificial light with a wavelength less than 400 nanometers and greater than 800 nanometers; this print comprises at least one luminescent pigment.
  • the invention aims to overcome these drawbacks.
  • a first object of the invention is to provide a sheet usable for laminates, this sheet having metallic or iridescent effects, of various sizes, colors and shapes which can be chosen according to the desired decorative effects.
  • a second object of the invention is therefore to use shiny particles having a covering power greater than the powders usually used and difficult to settle.
  • a third object of the invention is to introduce the particles, either in bulk into the sheet, during its manufacture by a papermaking process for example, or by printing the sheet with an ink containing the particles, a binder and a solvent. of the binder. This is why it must be possible to use these particles in an aqueous medium and / or in a non-aqueous solvent medium; they must be non-reactive with the medium chosen. r
  • a fourth object of the invention is to deposit the particles during the impregnation of thermosetting resin, this deposit being regular and homogeneous.
  • a fifth object of the invention is to obtain prints resistant to natural or artificial light.
  • One means of the invention is to use metallic, metallized, shiny and / or iridescent particles which are resistant to water and / or to non-aqueous solvents, to heat and to natural or artificial light.
  • particles obtained by cutting thin sheets can be used according to the invention. They can have very varied geometric shapes, for example a hexagon, rectangle, square, star shape. They can also have various sizes. The shinier effect will be better the larger the size. Preferably, the largest particle size is greater than 80 micrometers, more preferably at least equal to 100 micrometers.
  • the sheet made according to the invention could be used as a base sheet for carrying out the printing comprising luminescent pigments.
  • the invention provides a sheet for laminate having a metallic or iridescent effect decoration characterized in that it comprises metallic or metallized or iridescent plastic particles not sensitive to aqueous or non-aqueous solvents, resistant to temperatures above 100 ° C and resistant to light.
  • the metallic or metallized particles used for the invention can be obtained by cutting a metallized plastic film.
  • the metal layer can be covered with a protective layer.
  • the metal used is preferably aluminum.
  • the film is preferably polyester.
  • the particles can also be obtained by cutting a highly polished aluminum sheet also covered with a protective layer.
  • This protective layer is preferably a varnish based on epoxy resin.
  • the sequins can have metallic tones, for example gold, silver, and be of a single or multicolored color.
  • the iridescent plastic particles used for the invention are obtained by cutting a complex consisting of a stack of plastic films of controlled thickness, the refractive indices of two adjacent films being different.
  • the complex may for example be a stack of either polyester and polymethyl methacrylate films, or of polymethyl methacrylate, polyester and polyolefin films, or of polyolefin and polyester films.
  • the sequins have a color which varies according to the angle of incidence of the light, which makes it possible to obtain very decorative pearly / iridescent effects.
  • These particles have a thickness of about ten micrometers; their shapes and sizes are varied.
  • the sheet used according to the invention is preferably based on cellulose fibers. It is possibly colored. It can contain non-cellulosic fibers, for example polyolefin fibers, polyester fibers.
  • the invention provides a laminate sheet, having a metallic or iridescent effect decoration, for which said metallic or metallized or iridescent plastic particles can be incorporated during its manufacture.
  • the glitter can be added to the aqueous suspension containing the cellulose fibers, the mixture is then drained on a canvas, the sheet obtained is then pressed between cylinders and then dried. We can print this sheet to achieve a classic decor (faux wood , faux marble, etc.); the decor is enhanced by the metallic effect of the support sheet.
  • the particles can be deposited during the impregnation of the sheet with a thermosetting resin by dusting or spraying when the impregnating resin is still liquid and therefore not thermally hardened.
  • the invention also provides a laminate sheet having a metallic or iridescent effect for which the metallic or metallized or iridescent plastic particles are applied to the sheet by heliographic printing of an ink containing said particles.
  • the sheets produced according to the invention can be impregnated with a thermosetting resin.
  • the invention provides an ink composition for heliographic printing of a laminate sheet having a metallic or iridescent effect decoration, characterized in that it comprises: - at least metallic or metallized or iridescent plastic particles not sensitive to aqueous or non-aqueous solvents, resistant to temperatures above 100 ° C and resistant to natural or artificial light - at least one vinyl or (meth) acrylic binder
  • This solvent can be an alcohol, water or a water-alcohol mixture.
  • This ink may contain rheology regulating agents.
  • the invention also provides another ink composition which comprises:
  • the invention also provides laminates comprising a decorative sheet having a decoration with metallic or iridescent effect due to metallic or metallized particles or in iridescent plastic not sensitive to aqueous or non-aqueous solvents, resistant to temperatures above 100 ° C. and resistant to light and possibly including a protective overlay sheet.
  • the invention also makes it possible to provide laminates comprising a decorative sheet having a metallic or iridescent effect decoration comprising the metallic, metallized or iridescent particles mentioned above, this sheet being covered with an overlay sheet to protect it and which would also be decorated with previously mentioned particles.
  • a decorative sheet having a metallic or iridescent effect decoration comprising the metallic, metallized or iridescent particles mentioned above, this sheet being covered with an overlay sheet to protect it and which would also be decorated with previously mentioned particles.
  • a heliographic ink is produced by mixing:. metallized particles: 5 glitter parts of metallized polyester sheet with epoxy protective varnish, silver in color, dimensions 100x100x12 ⁇ m manufactured by DRAGON-WER, marketed by CHEMILAB ESSOR
  • a binder 65 parts vinyl varnish sold by SICPA (at 15% dry weight)
  • This sttf * mixture is applied to a sheet of 80 g / m2 paper, black in color, by gravure printing. About 3 g / m2 (by dry weight) of flakes were deposited.
  • a decorative sheet is obtained having a decor with a metallic effect.
  • Another high pressure laminate is produced with the decorative sheet obtained according to Example 1 by adding to this sheet an overlay sheet of 28 g / m2 impregnated with melamine resin.
  • the metallized particles chosen as well as the ink produced make it possible to manufacture a decorative sheet whose metallic decorative effect is not attenuated by the presence of a protective overlay; the particles withstood the operating conditions well.
  • a heliographic ink is produced by mixing:. metallized particles: 4 glitter parts of metallized polyester sheet with epoxy protective varnish, silver color dimensions 100x100x12 ⁇ m manufactured by DRAG0N-WERK, marketed by CHEMILAB ESSOR
  • a binder 87 parts aqueous varnish based on casein marketed by SICPA (at 13% of dry weight)
  • This mixture is applied to a sheet of 80 g / m2 paper, black in color, by gravure printing. About 3 g / m2 (by dry weight) of flakes were deposited.
  • a layer of protective varnish can be deposited, composed of the same constituents as the above ink but without the glitter. A decorative sheet is obtained having a decor with a metallic effect.
  • This sheet is used to make a high pressure laminate without overlay as in Example 1.
  • EXAMPLE 4 An overlay sheet according to the invention is produced. To an aqueous suspension of cellulose fibers, 15% by dry weight, based on the fibers, of flakes of polyester sheet metallized with aluminum and covered with an epoxy varnish is added. These sequins are multicolored.
  • the mixture is then used on a paper machine to form a sheet having a weight of 60 g / m 2 .
  • Example 1 a high pressure laminate is produced according to the technique described in Example 1 using a plain decor sheet of black color and the overlay sheet produced as above.
  • a laminate with an iridescent effect is obtained.
  • This laminate is resistant to abrasion, the particles have a good resistance.
  • a laminate paper is made from a suspension of cellulose fibers to which we add:
  • the pH is adjusted to 7 using sodium carbonate or calcium.
  • the sheet of paper is formed and dried. It is impregnated with a melamine formaldehyde resin.
  • a melamine formaldehyde resin We laminate as in the previous examples, with or without overlay.
  • a panel is obtained having the appearance of a metallic paint. This metallic appearance is as intense for the panel with overlay as for the panel without overlay.
  • a sheet is produced as in Example 5 but this sheet is printed after having dried it, to make a marble decoration. We impregnate and laminate as before.

Abstract

A sheet for a laminated material having a metallized or iridescent decoration and comprising metal, metallized or iridescent particles which are sensitive to aqueous or non-aqueous solvents, resistant to temperatures above 100 °C, and light-fast. The metallized particles are obtained for example by cutting a plastic film metallized with aluminium and covered with a protective layer. The laminated material may comprise a protective overlay sheet. Uses include panel manufacturing, particularly for household furniture.

Description

FEUILLES DECORATIVES COMPRENANT DES PAILLETTES METALLISEES OU EN PLASTIQUE IRISE DECORATIVE SHEETS COMPRISING METALLIC OR IRIDESCENT PLASTIC GLITTERS
L'invention concerne une feuille décorative utilisable par exempleThe invention relates to a decorative sheet usable for example
* 5 pour la fabrication de panneaux stratifiés, cette feuille comportant des paillettes métallisées ou en plastique irisé. Cette feuille peut aussi être une feuille overlay. L'invention concerne en outre une composition pour imprimer une telle feuille décorative.* 5 for the manufacture of laminated panels, this sheet comprising metallic or iridescent plastic flakes. This sheet can also be an overlay sheet. The invention further relates to a composition for printing such a decorative sheet.
On sait qu'il existe principalement deux sortes de panneaux 10 stratifiés : les panneaux dits haute pression et les panneaux dits basse pression.It is known that there are mainly two kinds of laminate panels: so-called high pressure panels and so-called low pressure panels.
Depuis de nombreuses années, on emploie des stratifiés comme matériaux dans les habitations et les locaux commerciaux et industriels. Des applications typiques de tels stratifiés sont le 15 revêtement superficiel des murs, des dessus de table, des meubles et autres.For many years, laminates have been used as materials in homes and commercial and industrial premises. Typical applications of such laminates are the surface coating of walls, table tops, furniture and the like.
On produit les stratifiés dits haute pression à partir d'une âme constituée de feuilles imprégnées de résine. Les feuilles sont généralement des feuilles de papier kraft qui a été imprégné d'une 20 résine ther odurcissable et plus particulièrement d'une résine phénolique.The so-called high pressure laminates are produced from a core consisting of sheets impregnated with resin. The sheets are generally sheets of kraft paper which has been impregnated with a thermosetting resin and more particularly with a phenolic resin.
Lorsque le papier kraft a été imprégné de résine, on sèche les feuilles, on les découpe, puis on les empile les unes sur les autres. Le nombre des feuilles de la pile dépend des applications et 25 peut varier entre 3 et 9, mais peut être supérieur.When the kraft paper has been impregnated with resin, the sheets are dried, cut, then stacked on top of each other. The number of sheets in the stack depends on the applications and can vary between 3 and 9, but can be higher.
v On place ensuite sur la pile de feuilles constituant l'âme, une feuille décorative qui est en général une feuille de papier portant un motif imprimé ou de couleur claire, et imprégnée d'une résine thermodurcissable ne noircissant pas à la chaleur, par exemple des v A decorative sheet is then placed on the pile of sheets constituting the core, which is generally a sheet of paper bearing a printed or light-colored pattern, and impregnated with a thermosetting resin which does not blacken with heat, for example of
30 résines de élamine-formaldéhyde, des résines de benzoguanamine- formaldéhyde, des résines de polyester insaturé. En général, on place au-dessus de la feuille décorative, une feuille protectrice de recouvrement, dépourvue de motif et transparente dans le stratifié final. En termes de métier, cette feuille protectrice est appelée "over-lay". Cette feuille overlay est traditionnellement fabriquée par égouttage d'une suspension aqueuse de fibres de cellulose peu raffinées. On place ensuite la pile de feuilles imprégnées dans une presse munie d'une tôle conférant l'état de surface. Puis, on densifie la pile par chauffage et pressage pour obtenir une structure unitaire.30 elamine-formaldehyde resins, benzoguanamine-formaldehyde resins, unsaturated polyester resins. In general, a protective cover sheet, without a pattern and transparent in the laminate, is placed above the decorative sheet. final. In terms of profession, this protective sheet is called "over-lay". This overlay sheet is traditionally made by draining an aqueous suspension of unrefined cellulose fibers. The stack of impregnated sheets is then placed in a press fitted with a sheet giving the surface condition. Then, the stack is densified by heating and pressing to obtain a unitary structure.
Pendant la densification, les résines ther odurcissables sont transformées en forme ther odurcie et on obtient une matière extrêmement dure et ayant un effet décoratif.During densification, the thermosetting resins are transformed into thermosetting form and an extremely hard material with a decorative effect is obtained.
On produit des stratifiés dits basse pression de façon similaire à celle des stratifiés haute pression, mais on effectue la stratification de la feuille décorative directement sur un panneau de particules de bois ou tout autre support de base.So-called low pressure laminates are produced in a similar manner to that of high pressure laminates, but the decorative sheet is laminated directly on a particle board or any other basic support.
La feuille décorative est traditionnellement fabriquée de la manière suivante. On fabrique une feuille de papier en égouttant sur une toile plate une suspension aqueuse de fibres de cellulose, longues et/ou courtes, blanchies, de charges, d'agents de rétention, de liants. La feuille ainsi formée est égouttée, pressée et séchée pour former une feuille de papier. Cette feuille est ensuite imprimée. L'impression faite habituellement est une impression par héliogravure, au moyen de rouleaux gravés. La technique de gravure consiste à effectuer un dessin, par exemple reproduisant un bois ou un dessin artistique purement de fantaisie. Puis on prend la photographie de ce dessin et à partir des films obtenus, on grave un ou plusieurs rouleaux d'impression. Chaque cylindre passe ensuite dans un bain d'encre, et les creux ou empreintes gravés dans le cylindre se remplissent d'encre qui est ensuite reportée sur le papier. On effectue en général de une à trois impressions distinctes et successives à l'aide de un à trois rouleaux.The decorative sheet is traditionally made in the following manner. A sheet of paper is made by draining on a flat canvas an aqueous suspension of bleached, long and / or short cellulose fibers, fillers, retention agents, binders. The sheet thus formed is drained, pressed and dried to form a sheet of paper. This sheet is then printed. The impression usually made is a gravure printing, by means of engraved rollers. The engraving technique consists in making a drawing, for example reproducing a wood or a purely fancy artistic drawing. Then we take the photograph of this drawing and from the films obtained, we engrave one or more printing rollers. Each cylinder then passes through an ink bath, and the indentations or imprints engraved in the cylinder are filled with ink which is then transferred to the paper. Generally one to three separate and successive prints are made using one to three rollers.
On connaît déjà des feuilles décoratives pour panneaux stratifiés qui sont imprimées à l'aide de pigments minéraux iridescents. Les feuilles décoratives présentent des couleurs variées en fonction de l'angle d'observation. De telles feuilles ont été décrites dans le brevet français de la demanderesse FR-A-2 442 719.Decorative sheets for laminate panels are already known which are printed using iridescent mineral pigments. The decorative sheets have different colors depending on the viewing angle. Such sheets have been described in the French patent of the applicant FR-A-2,442,719.
On a décrit dans la demande JP-A-63084936, déposée par IBIDEN, la fabrication de panneaux stratifiés haute pression qui comportent un overlay imprimé avec une encre contenant un agent brillant et un liant qui est une résine mélamine. L'agent brillant est constitué de poudre revêtue d'oxyde de titane. Cette poudre peut par exemple être une poudre métallique, du mica, de la nacre. Cet agent brillant a un diamètre de particules de 10 à 60 micromètres. Il est mentionné que si la granulométrie est supérieure à 60 micromètres, les micas suspendus dans le liant auront tendance à précipiter. La surface de la poudre est revêtue d'oxyde de titane par fusion de l'oxyde de titane. Les papiers obtenus selon cette demande japonaise comprennent donc des produits relativement chers car ils sont peu faciles à obtenir du fait de Terur faible granulométrie qui nécessite une mise en oeuvre importante. De plus, le procédé de revêtement par fusion de l'oxyde de titane n'est pas facile à mettre en oeuvre.There has been described in application JP-A-63084936, filed by IBIDEN, the manufacture of high pressure laminate panels which comprise an overlay printed with an ink containing a gloss agent and a binder which is a melamine resin. The brightening agent consists of powder coated with titanium oxide. This powder can for example be a metallic powder, mica, mother-of-pearl. This brightening agent has a particle diameter of 10 to 60 micrometers. It is mentioned that if the particle size is greater than 60 micrometers, the micas suspended in the binder will tend to precipitate. The surface of the powder is coated with titanium oxide by melting the titanium oxide. The papers obtained according to this Japanese application therefore include relatively expensive products because they are not easy to obtain due to the small particle size Terur which requires significant processing. In addition, the method of coating by fusion of titanium oxide is not easy to implement.
Le brevet anglais GB-1 107 341 de DOW CHEMICAL décrit un papier contenant intimement un grand nombre de particules en plastique irisé constituées de plusieurs couches parallèles de résines thermoplastiques, deux couches adjacentes ayant des indices de réfraction différents. Il s'agit d'un papier décoratif qui n'est pas spécifiquement destiné aux stratifiés; il n'est ni mentionné que les particules sont spécialement résistantes à la chaleur, aux solvants et à la lumière ni qu'il est possible de mettre une feuille protectrice sans atténuer l'effet irisé.DOW CHEMICAL British patent GB-1 107 341 describes a paper intimately containing a large number of iridescent plastic particles made up of several parallel layers of thermoplastic resins, two adjacent layers having different refractive indices. It is a decorative paper that is not specifically intended for laminates; it is neither mentioned that the particles are especially resistant to heat, solvents and light nor that it is possible to put a protective sheet without attenuating the iridescent effect.
Selon la technique antérieure, les effets obtenus avec des poudres sont uniformes du fait que les particules sont sphériques et de faible granulométrie.According to the prior art, the effects obtained with powders are uniform because the particles are spherical and of small particle size.
De plus, les poudres selon la technique antérieure, du fait de leur forme sphérique et de leur faible granulométrie présentent les inconvénients de décanter facilement et d'avoir un pouvoir couvrant faible. Selon des procédés connus, il est courant d'utiliser de la poudre d'aluminium pour créer un effet décoratif. Or l'aluminium s'oxyde au contact de l'eau, il y a un dégagement d'hydrogène, ce qui est évidemment dangereux ; de plus, l'aluminium se ternit et perd donc son éclat métallique ; ces particules ont des conditions d'utilisation très restreintes.In addition, the powders according to the prior art, due to their spherical shape and their small particle size have the disadvantages of settling easily and having a low covering power. According to known methods, it is common to use aluminum powder to create a decorative effect. Now aluminum oxidizes on contact with water, there is a release of hydrogen, which is obviously dangerous; moreover, aluminum tarnishes and therefore loses its metallic luster; these particles have very limited conditions of use.
Les particules sont également soumises à des températures élevées, de Tordre de 160°C environ, lors de la stratification des feuilles.The particles are also subjected to high temperatures, of the order of about 160 ° C., during the stratification of the sheets.
De plus, les stratifiés, lors de leur utilisation, sont souvent soumis à la lumière naturelle ou artificielle pendant des périodes prolongées. Par exemple, la demanderesse a décrit dans la demande de brevet français FR-A-8905541 une feuille destinée à être soumise à l'action prolongée de la lumière, ayant une première teinte à la lumière naturelle de longueur d'onde comprise entre 400 et 800 nanomètres et une seconde teinte différente de la première, à la lumière artificielle de longueur d'onde inférieure à 400 nanomètres et supérieure à 800 nanomètres ; cette impression comporte au moins un pigment luminescent.In addition, laminates, when in use, are often subjected to natural or artificial light for extended periods. For example, the applicant has described in French patent application FR-A-8905541 a sheet intended to be subjected to the prolonged action of light, having a first shade in natural light of wavelength between 400 and 800 nanometers and a second shade different from the first, in artificial light with a wavelength less than 400 nanometers and greater than 800 nanometers; this print comprises at least one luminescent pigment.
Un autre problème posé par l'utilisation de particules irisées selon l'art antérieur pour les stratifiés haute pression est qu'on ne peut pas utiliser une feuille overlay standard (c'est-à-dire non décorée) sur une feuille décorative comportant ces particules, car la feuille overlay atténue trop fortement l'effet optique décoratif dû aux particules. Ainsi, la qualité des stratifiés est moins bonne car ils ne comportent pas de feuille overlay qui les protège notamment de l'abrasion.Another problem posed by the use of iridescent particles according to the prior art for high pressure laminates is that one cannot use a standard overlay sheet (that is to say an undecorated sheet) on a decorative sheet comprising these particles, because the overlay sheet too strongly attenuates the decorative optical effect due to particles. Thus, the quality of the laminates is less good because they do not have an overlay sheet which protects them in particular from abrasion.
L'invention vise à pallier ces inconvénients.The invention aims to overcome these drawbacks.
Un premier but de l'invention est de fournir une feuille utilisable pour stratifiés, cette feuille présentant des effets métalliques ou irisés, de tailles, de teintes et de formes variées que Ton peut choisir selon les effets décoratifs souhaités. Un deuxième but de l'invention est donc d'utiliser des particules brillantes ayant un pouvoir couvrant supérieur aux poudres habituellement utilisées et décantant difficilement.A first object of the invention is to provide a sheet usable for laminates, this sheet having metallic or iridescent effects, of various sizes, colors and shapes which can be chosen according to the desired decorative effects. A second object of the invention is therefore to use shiny particles having a covering power greater than the powders usually used and difficult to settle.
Un troisième but de l'invention est d'introduire les particules, soit en masse dans la feuille, lors de sa fabrication par un procédé papetier par exemple, soit par impression de la feuille par une encre contenant les particules, un liant et un solvant du liant. C'est pourquoi, on doit pouvoir utiliser ces particules en milieu aqueux et/ou en milieu solvant non aqueux; elles doivent être non réactives avec le milieu choisi. rA third object of the invention is to introduce the particles, either in bulk into the sheet, during its manufacture by a papermaking process for example, or by printing the sheet with an ink containing the particles, a binder and a solvent. of the binder. This is why it must be possible to use these particles in an aqueous medium and / or in a non-aqueous solvent medium; they must be non-reactive with the medium chosen. r
Un quatrième but de l'invention est de déposer les particules lors de l'imprégnation de résine thermodurcissable, ce dépôt étant régulier et homogène.A fourth object of the invention is to deposit the particles during the impregnation of thermosetting resin, this deposit being regular and homogeneous.
Un cinquième but de l'invention est d'obtenir des impressions résistant à la lumière naturelle ou artificielle.A fifth object of the invention is to obtain prints resistant to natural or artificial light.
Un moyen de l'invention est d'utiliser des particules métalliques, métallisées, brillantes et/ou irisées qui sont résistantes à l'eau et/ou aux solvants non aqueux, à la chaleur et à la lumière naturelle ou artificielle.One means of the invention is to use metallic, metallized, shiny and / or iridescent particles which are resistant to water and / or to non-aqueous solvents, to heat and to natural or artificial light.
Pour parvenir aux buts de l'invention, on peut utiliser selon l'invention des particules obtenues par découpe de feuilles minces. Elles peuvent avoir des formes géométriques très variées, par exemple une forme d'hexagone, de rectangle, de carré, d'étoile. Elles peuvent aussi avoir des tailles variées. L'effet brillant sera d'autant meilleur que la taille est plus grande. De préférence, la plus grande dimension des particules est supérieure à 80 micromètres, plus préfèrentiellement au moins égale à 100 micromètres.To achieve the aims of the invention, particles obtained by cutting thin sheets can be used according to the invention. They can have very varied geometric shapes, for example a hexagon, rectangle, square, star shape. They can also have various sizes. The shinier effect will be better the larger the size. Preferably, the largest particle size is greater than 80 micrometers, more preferably at least equal to 100 micrometers.
Ces formes et ces tailles variées présentent l'avantage de fournir des effets décoratifs très diversifiés comme il a été mentionné précédemment.These varied shapes and sizes have the advantage of providing a wide variety of decorative effects, as mentioned. previously.
La feuille faite selon l'invention pourrait être utilisée comme feuille de base pour réaliser l'impression comportant des pigments luminescents.The sheet made according to the invention could be used as a base sheet for carrying out the printing comprising luminescent pigments.
Ainsi l'invention fournit une feuille pour stratifié présentant un décor à effet métallique ou irisé caractérisée par le fait qu'elle comporte des particules métalliques ou métallisées ou en plastique irisé non sensibles aux solvants aqueux ou non aqueux, résistant à des températures supérieures à 100°C et résistant à la lumière.Thus, the invention provides a sheet for laminate having a metallic or iridescent effect decoration characterized in that it comprises metallic or metallized or iridescent plastic particles not sensitive to aqueous or non-aqueous solvents, resistant to temperatures above 100 ° C and resistant to light.
Les particules métalliques ou métallisées utilisées pour l'invention peuvent être obtenues par découpe d'un film plastique métallisé. La couche métallique peut être recouverte d'une couche protectrice. Le métal utilisé est de préférence l'aluminium. Le film est de préférence du polyester. Les particules peuvent aussi être obtenues par découpe d'une feuille d'aluminium hautement polie recouverte également d'une couche protectrice. Cette couche protectrice est de préférence un vernis à base de résine époxy.The metallic or metallized particles used for the invention can be obtained by cutting a metallized plastic film. The metal layer can be covered with a protective layer. The metal used is preferably aluminum. The film is preferably polyester. The particles can also be obtained by cutting a highly polished aluminum sheet also covered with a protective layer. This protective layer is preferably a varnish based on epoxy resin.
Ces particules peuvent être colorées. Les paillettes peuvent présenter des tons métalliques par exemple d'or, d'argent, et être de couleur unique ou multicolore.These particles can be colored. The sequins can have metallic tones, for example gold, silver, and be of a single or multicolored color.
Les particules en plastique irisé, utilisées pour l'invention, sont obtenues par découpe d'un complexe constitué d'un empilement de films plastiques d'épaisseur contrôlée, les indices de réfraction de deux films adjacents étant différents. Le complexe peut être par exemple un empilement soit de films polyester et polyméthacrylate de méthyle, soit de films polyméthacrylate de méthyle, polyester et polyoléfine, soit de films polyoléfine et polyester.The iridescent plastic particles used for the invention are obtained by cutting a complex consisting of a stack of plastic films of controlled thickness, the refractive indices of two adjacent films being different. The complex may for example be a stack of either polyester and polymethyl methacrylate films, or of polymethyl methacrylate, polyester and polyolefin films, or of polyolefin and polyester films.
Les paillettes ont une couleur qui varie selon l'angle d'incidence de la lumière, ce qui permet d'obtenir des effets nacrés/irisés très décoratifs. Ces particules ont une épaisseur d'environ une dizaine de micromètres ; leurs formes et leurs tailles sont variées.The sequins have a color which varies according to the angle of incidence of the light, which makes it possible to obtain very decorative pearly / iridescent effects. These particles have a thickness of about ten micrometers; their shapes and sizes are varied.
La feuille utilisée selon l'invention est de préférence à base de fibres de cellulose. Elle est éventuellement colorée. Elle peut contenir des fibres non cellulosiques, par exemple des fibres de polyoléfines, de polyester.The sheet used according to the invention is preferably based on cellulose fibers. It is possibly colored. It can contain non-cellulosic fibers, for example polyolefin fibers, polyester fibers.
L'invention fournit une feuille pour stratifié, présentant un décor à effet métallique ou irisé, pour laquelle lesdites particules métalliques ou métallisées ou en plastique irisé peuvent être incorporées lors de sa fabrication. Les paillettes peuvent être ajoutées à la suspension aqueuse contenant les fibres de cellulose, le mélange est ensuite égoutté sur une toile, la feuille obtenue est alors pressée entre des cylindres puis séchée.On peut imprimer cette feuille pour réaliser un décor classique (faux-bois, faux-marbre, etc..) ; le décor est mis en valeur par l'effet métallisé de la feuille support.The invention provides a laminate sheet, having a metallic or iridescent effect decoration, for which said metallic or metallized or iridescent plastic particles can be incorporated during its manufacture. The glitter can be added to the aqueous suspension containing the cellulose fibers, the mixture is then drained on a canvas, the sheet obtained is then pressed between cylinders and then dried. We can print this sheet to achieve a classic decor (faux wood , faux marble, etc.); the decor is enhanced by the metallic effect of the support sheet.
Enfin, les particules peuvent être déposées lors de l'imprégnation de la feuille par une résine thermodurcissable par saupoudrage ou pulvérisation quand la résine d'imprégnation est encore liquide et donc non ther odurcie.Finally, the particles can be deposited during the impregnation of the sheet with a thermosetting resin by dusting or spraying when the impregnating resin is still liquid and therefore not thermally hardened.
Par exemple, on peut utiliser un répartiteur de poudres fabriqué par PILLON-ANDRIOT et breveté sous le numéro EP-A-307318.For example, one can use a powder distributor made by PILLON-ANDRIOT and patented under the number EP-A-307318.
L'invention fournit aussi une feuille pour stratifié présentant un effet métallique ou irisé pour laquelle les particules métalliques ou métallisées ou en plastique irisé sont appliquées sur la feuille par impression héliographique d'une encre contenant lesdites particules. Les feuilles réalisées selon l'invention peuvent être imprégnées d'une résine thermodurcissable.The invention also provides a laminate sheet having a metallic or iridescent effect for which the metallic or metallized or iridescent plastic particles are applied to the sheet by heliographic printing of an ink containing said particles. The sheets produced according to the invention can be impregnated with a thermosetting resin.
L'invention fournit une composition d'encre pour impression héliographique d'une feuille pour stratifié présentant un décor à effet métallique ou irisé caractérisée par le fait qu'elle comprend: - au moins des particules métalliques ou métallisées ou en plastique irisé non sensibles aux solvants aqueux ou non aqueux, résistant à des températures supérieures à 100°C et résistant à la lumière naturelle ou artificielle - au moins un liant vinylique ou (méth)acryliqueThe invention provides an ink composition for heliographic printing of a laminate sheet having a metallic or iridescent effect decoration, characterized in that it comprises: - at least metallic or metallized or iridescent plastic particles not sensitive to aqueous or non-aqueous solvents, resistant to temperatures above 100 ° C and resistant to natural or artificial light - at least one vinyl or (meth) acrylic binder
- au moins un solvant- at least one solvent
Ce solvant peut être un alcool, de Teau ou un mélange eau- alcool . Cette encre peut contenir des agents régulateurs de rhéologie.This solvent can be an alcohol, water or a water-alcohol mixture. This ink may contain rheology regulating agents.
L'invention fournit aussi une autre composition d'encre qui comprend :The invention also provides another ink composition which comprises:
- au moins des particules métalliques ou métallisées ou en plastique irisé non sensibles aux solvants aqueux ou non aqueux, résistant à des températures supérieures à 100°C et résistant à la lumière naturelle ou artificielle- at least metallic or metallized or iridescent plastic particles not sensitive to aqueous or non-aqueous solvents, resistant to temperatures above 100 ° C and resistant to natural or artificial light
- au moins un liant aqueux à base de caséine- at least one aqueous binder based on casein
- au moins un insolubilisant de la caséine- at least one insolubilizer of casein
- au moins un solvant eau/alcool- at least one water / alcohol solvent
La demanderesse a trouvé de façon surprenante que l'effet optique décoratif donné par une feuille décorée par les paillettes choisies pour l'invention n'est pas altéré par la pose d'une feuille overlay standard. Ainsi, l'invention fournit aussi des stratifiés comportant une feuille décorative présentant un décor à effet métallique ou irisé dû aux particules métalliques ou métallisées ou en plastique irisé non sensibles aux solvants aqueux ou non aqueux, résistant à des températures supérieures à 100°C et résistant à la lumière et comportant éventuellement une feuille protectrice overlay.The Applicant has surprisingly found that the decorative optical effect given by a sheet decorated with the flakes chosen for the invention is not altered by the installation of a standard overlay sheet. Thus, the invention also provides laminates comprising a decorative sheet having a decoration with metallic or iridescent effect due to metallic or metallized particles or in iridescent plastic not sensitive to aqueous or non-aqueous solvents, resistant to temperatures above 100 ° C. and resistant to light and possibly including a protective overlay sheet.
L'invention permet de fournir également des stratifiés comportant une feuille décorative présentant un décor à effet métallique ou irisé comportant les particules métalliques, métallisées ou irisées précédemment citées, cette feuille étant recouverte d'une feuille overlay pour la protéger et qui serait aussi décorée avec des particules précédemment citées. L' inventi on sera mieux compri se à l ' aide des exempl es sui vants .The invention also makes it possible to provide laminates comprising a decorative sheet having a metallic or iridescent effect decoration comprising the metallic, metallized or iridescent particles mentioned above, this sheet being covered with an overlay sheet to protect it and which would also be decorated with previously mentioned particles. The inventi on will be better understood with the help of the following examples.
EXEMPLESEXAMPLES
EXEMPLE 1EXAMPLE 1
A/. On réalise une encre héliographique en mélangeant : . des particules métallisées : 5 parties paillettes de feuille de polyester métallisée avec vernis protecteur époxy, de couleur argent, dimensions 100x100x12 μm fabriqué par DRAGON-WER , commercialisé par CHEMILAB ESSORAT/. A heliographic ink is produced by mixing:. metallized particles: 5 glitter parts of metallized polyester sheet with epoxy protective varnish, silver in color, dimensions 100x100x12 μm manufactured by DRAGON-WER, marketed by CHEMILAB ESSOR
. un solvant : 30 parties. a solvent: 30 parts
(éthylglycol) pour avoir une viscosité adaptée à la machine d'impression utilisée.(ethyl glycol) to have a viscosity adapted to the printing machine used.
. un liant : 65 parties vernis vinylique commercialisé par SICPA (à 15% de poids sec). a binder: 65 parts vinyl varnish sold by SICPA (at 15% dry weight)
On applique ce mélange sttf* une feuille de papier de 80 g/m2, de couleur noire, par impression par héliogravure. On a déposé environ 3 g/m2 (en poids sec) de paillettes.This sttf * mixture is applied to a sheet of 80 g / m2 paper, black in color, by gravure printing. About 3 g / m2 (by dry weight) of flakes were deposited.
On obtient une feuille décorative présentant un décor à effet métallique.A decorative sheet is obtained having a decor with a metallic effect.
B/. On utilise cette feuille pour fabriquer un stratifié haute pression sans overlay :B /. We use this sheet to make a high pressure laminate without overlay:
. on emploie 3 feuilles de papier kraft imprégné de résine phénolique de 120 g/m2, . puis on pose au-dessus la feuille décorative obtenue selon l'invention,. 3 sheets of kraft paper impregnated with phenolic resin of 120 g / m2 are used. then the decorative sheet obtained according to the invention is placed above it,
. on stratifié l'ensemble en chauffant à 130°C pendant 30 minutes sous une pression de 100 MPa (100 kg/cm2). On obtient un stratifié présentant un effet métallique intense. EXEMPLE 2. the whole is laminated by heating at 130 ° C for 30 minutes under a pressure of 100 MPa (100 kg / cm2). A laminate with an intense metallic effect is obtained. EXAMPLE 2
On réalise un autre stratifié haute pression avec la feuille décorative obtenue selon l'exemple 1 en ajoutant sur cette feuille une feuille overlay de 28 g/m2 imprégnée de résine méla ine.Another high pressure laminate is produced with the decorative sheet obtained according to Example 1 by adding to this sheet an overlay sheet of 28 g / m2 impregnated with melamine resin.
On stratifié comme précédemment. On obtient un stratifié présentant un effet métallique aussi intense que pour le stratifié fabriqué sans overlay.We laminate as before. We obtain a laminate with a metallic effect as intense as for the laminate manufactured without overlay.
Les particules métallisées choisies ainsi que l'encre réalisée permettent de fabriquer une feuille décorative dont l'effet décoratif métallique n'est pas atténué par la présence d'un overlay protecteur ; les particules ont bien résisté aux conditions opératoires.The metallized particles chosen as well as the ink produced make it possible to manufacture a decorative sheet whose metallic decorative effect is not attenuated by the presence of a protective overlay; the particles withstood the operating conditions well.
EXEMPLE 3EXAMPLE 3
A/. On réalise une encre héliographique en mélangeant : . des particules métallisées : 4 parties paillettes de feuille de polyester métallisée avec vernis protecteur époxy, de couleur argent dimensions 100x100x12 μm fabriqué par DRAG0N-WERK, commercialisé par CHEMILAB ESSORAT/. A heliographic ink is produced by mixing:. metallized particles: 4 glitter parts of metallized polyester sheet with epoxy protective varnish, silver color dimensions 100x100x12 μm manufactured by DRAG0N-WERK, marketed by CHEMILAB ESSOR
. un solvant : 7 parties. a solvent: 7 parts
(eau/éthanol) pour avoir une viscosité adaptée à la machine d'impression utilisée.(water / ethanol) to have a viscosity adapted to the printing machine used.
, un liant : 87 parties vernis aqueux à base de caséine commercialisé par SICPA (à 13% de poids sec), a binder: 87 parts aqueous varnish based on casein marketed by SICPA (at 13% of dry weight)
. un insolubilisant de la caséine : 2 parties formol à 20%. a casein insolubilizer: 2 parts 20% formalin
On applique ce mélange sur une feuille de papier de 80 g/m2, de couleur noire, par impression par héliogravure. On a déposé environ 3 g/m2 (en poids sec) de paillettes. Pour renforcer l'accrochage des paillettes, on peut déposer une couche de vernis protecteur composé des mêmes constituants que l'encre ci-dessus mais sans les paillettes. On obtient une feuille décorative présentant un décor à effet métallique.This mixture is applied to a sheet of 80 g / m2 paper, black in color, by gravure printing. About 3 g / m2 (by dry weight) of flakes were deposited. To strengthen the attachment of the glitter, a layer of protective varnish can be deposited, composed of the same constituents as the above ink but without the glitter. A decorative sheet is obtained having a decor with a metallic effect.
B/. On utilise cette feuille pour fabriquer un stratifié haute pression sans overlay comme dans l'exemple 1.B /. This sheet is used to make a high pressure laminate without overlay as in Example 1.
On obtient un stratifié présentant un effet métallique intense.A laminate with an intense metallic effect is obtained.
EXEMPLE 4 On réalise une feuille overlay selon l'invention. A une suspension aqueuse de fibres de cellulose, on ajoute 15% en poids sec par rapport aux fibres, de paillettes en feuille de polyester métallisé par de l'aluminium et recouvert d'un vernis époxy. Ces paillettes sont multicolores.EXAMPLE 4 An overlay sheet according to the invention is produced. To an aqueous suspension of cellulose fibers, 15% by dry weight, based on the fibers, of flakes of polyester sheet metallized with aluminum and covered with an epoxy varnish is added. These sequins are multicolored.
Le mélange est alors mis en oeuvre sur une machine à papier pour former une feuille ayant un poids de 60 g/m2.The mixture is then used on a paper machine to form a sheet having a weight of 60 g / m 2 .
Puis on réalise un stratifié haute pression selon la technique décrite dans l'exemple 1 en utilisant une feuille décor unie de couleur noire et la feuille overlay réalisée comme ci-dessus.Then a high pressure laminate is produced according to the technique described in Example 1 using a plain decor sheet of black color and the overlay sheet produced as above.
On obtient un stratifié présentant un effet irisé. Ce stratifié est résistant à l'abrasion, les particules ont une bonne tenue.A laminate with an iridescent effect is obtained. This laminate is resistant to abrasion, the particles have a good resistance.
EXEMPLE 5EXAMPLE 5
On fabrique un papier pour stratifié à partir d'une suspension de fibres de cellulose dans laquelle on rajoute :A laminate paper is made from a suspension of cellulose fibers to which we add:
. 10% de charges minérales (kaolin ou talc),. 10% mineral fillers (kaolin or talc),
. 5% de pâte d'aluminium stabilisé G.R. SILVEX 1537 ou 1258 vendue par CARBONNEL et JACQUEMOT (France), . éventuellement 3% environ d'un pigment organique ou minéral utilisé habituellement pour les papiers pour stratifiés, . 1,5% de résine mélamine formol comme agent de résistance humide. . 1% de sulfate d'aluminium comme agent de rétention.. 5% of GR SILVEX 1537 or 1258 stabilized aluminum paste sold by CARBONNEL and JACQUEMOT (France),. optionally around 3% of an organic or mineral pigment usually used for laminate papers, . 1.5% melamine formalin resin as a wet strength agent. . 1% aluminum sulphate as a retention agent.
On règle le pH à 7 à l'aide de carbonate de sodium ou calcium.The pH is adjusted to 7 using sodium carbonate or calcium.
On forme la feuille de papier et on sèche. On imprègne avec une résine mélamine formol. On stratifié comme dans les exemples précédents, avec ou sans overlay. On obtient un panneau ayant l'aspect d'une peinture métallisée. Cet aspect métallisé est aussi intense pour le panneau avec overlay que pour le panneau sans overlay.The sheet of paper is formed and dried. It is impregnated with a melamine formaldehyde resin. We laminate as in the previous examples, with or without overlay. A panel is obtained having the appearance of a metallic paint. This metallic appearance is as intense for the panel with overlay as for the panel without overlay.
EXEMPLE 6EXAMPLE 6
On réalise une feuille comme dans l'exemple 5 mais on imprime cette feuille après l'avoir séchée, pour faire un décor marbre. On imprègne et on stratifié comme précédemment.A sheet is produced as in Example 5 but this sheet is printed after having dried it, to make a marble decoration. We impregnate and laminate as before.
En comparant le panneau obtenu selon l'invention avec un panneau fabriqué avec une feuille décor qui ne comporte pas la pâte d'aluminium, on constate, de façon inattendue, que le décor imprimé est mis en valeur par la métal!isation de la feuille. By comparing the panel obtained according to the invention with a panel manufactured with a decorative sheet which does not include the aluminum paste, it is found, unexpectedly, that the printed decoration is enhanced by the metal! Isation of the sheet .

Claims

REVENDICATIONS
1. Feuille pour stratifié présentant un décor à effet métallique ou irisé, caractérisée par le fait qu'elle comporte des particules métalliques ou métallisées ou en plastique irisé non sensibles aux solvants aqueux ou non aqueux, résistant à des températures supérieures à 100βC et résistant à la lumière.1. Sheet for laminate having a metallic or iridescent effect decoration, characterized in that it comprises metallic or metallized or iridescent plastic particles not sensitive to aqueous or non-aqueous solvents, resistant to temperatures above 100 β C and resistant to light.
2. Feuille selon la revendication 1, caractérisée par le fait que les particules métallisées sont obtenues par découpe d'un film plastique métallisé par de l'aluminium recouvert d'une couche protectrice.2. Sheet according to claim 1, characterized in that the metallized particles are obtained by cutting a plastic film metallized with aluminum covered with a protective layer.
3. Feuille selon la revendication 2, caractérisée par le fait que le film plastique est un film de polyester.3. Sheet according to claim 2, characterized in that the plastic film is a polyester film.
4. Feuille selon la revendication 1, caractérisée par le fait que les particules métallisées sont obtenues par découpe d'une feuille d'aluminium hautement polie et recouverte d'une couche protectrice.4. Sheet according to claim 1, characterized in that the metallized particles are obtained by cutting a sheet of highly polished aluminum and covered with a protective layer.
5. Feuille selon les revendications 2 à 4, caractérisée par le fait que la couche protectrice est un vernis époxy.5. Sheet according to claims 2 to 4, characterized in that the protective layer is an epoxy varnish.
6. Feuille selon la revendication 1, caractérisée par le fait que les particules en plastique irisé sont obtenues par découpe d'un complexe constitué d'un empilement de films plastiques d'épaisseur contrôlée et les indices de réfraction de deux films adjacents étant différents.6. Sheet according to claim 1, characterized in that the iridescent plastic particles are obtained by cutting a complex consisting of a stack of plastic films of controlled thickness and the refractive indices of two adjacent films being different.
7. Feuille selon la revendication 6, caractérisée par le fait que le complexe est un empilement soit de films polyester et polyméthacrylate de méthyle, soit de films polyméthacrylate de méthyle, polyester et polyoléfine, soit de films polyoléfine et polyester. 7. Sheet according to claim 6, characterized in that the complex is a stack of either polyester and polymethyl methacrylate films, or polymethyl methacrylate films, polyester and polyolefin, or polyolefin and polyester films.
8. Feuille selon Tune des revendications 1 à 7, caractérisée par le fait que la plus grande dimension des particules est supérieure à 80 micromètres.8. Sheet according to one of claims 1 to 7, characterized in that the largest particle size is greater than 80 micrometers.
9. Feuille selon Tune des revendications 1 à 8, caractérisée par le fait qu'elle est à base de fibres de cellulose et est éventuellement colorée.9. Sheet according to one of claims 1 to 8, characterized in that it is based on cellulose fibers and is optionally colored.
10. Feuille selon Tune des revendications 1 à 9, caractérisée par le fait que les particules métallisées ou en plastique irisé sont appliquées sur la feuille par impression par héliogravure d'une encre contenant lesdites particules.10. Sheet according to one of claims 1 to 9, characterized in that the metallized or iridescent plastic particles are applied to the sheet by gravure printing of an ink containing said particles.
11. Feuille selon Tune des revendications 1 à 9, caractérisée par le fait que les particules métallisées ou en plastique irisé sont incorporées en masse dans la feuille lors de la fabrication de cette feuille par un procédé papetier.11. Sheet according to one of claims 1 to 9, characterized in that the metallized particles or iridescent plastic are incorporated en masse in the sheet during the manufacture of this sheet by a papermaking process.
12. Feuille selon Tune des revendications 1 à 11, caractérisée par le fait qu'elle est une feuille overlay protectrice d'une autre feuille décorative.12. Sheet according to one of claims 1 to 11, characterized in that it is a protective overlay sheet of another decorative sheet.
13. Feuille selon Tune des revendications 1 à 12, caractérisée par le fait que cette feuille est imprégnée d'une résine13. Sheet according to one of claims 1 to 12, characterized in that this sheet is impregnated with a resin
+t•he -ovrrmriΛo Λdur •c*-"• *i!ss -ra a Kbll ae..+ t • he -ovrrmriΛo Λdur • c * - "• * i! ss -ra a Kbll ae ..
14. Feuille selon Tune des revendications 1 à 13, caractérisée par le fait que les particules sont déposées uniformément après imprégnation et avant que la résine soit thermodurcie.14. Sheet according to one of claims 1 to 13, characterized in that the particles are deposited uniformly after impregnation and before the resin is thermoset.
15. Composition d'encre pour impression par héliogravure d'une feuille selon Tune des revendications 1 à 10, 12 ou 13, caractérisée par le fait qu'elle comprend :15. An ink composition for gravure printing of a sheet according to one of claims 1 to 10, 12 or 13, characterized in that it comprises:
- au moins des particules métallisées ou en plastique irisé non sensibles aux solvants aqueux ou non aqueux, résistant à des températures supérieures à 100°C et résistant à la lumière,- at least metallized or iridescent plastic particles not sensitive to aqueous or non-aqueous solvents, resistant to temperatures above 100 ° C and resistant to light,
- au moins un liant vinylique ou (méth)acrylique,- at least one vinyl or (meth) acrylic binder,
- au moins un solvant alcoolique.- at least one alcoholic solvent.
16. Composition d'encre pour impression par héliogravure d'une feuille selon Tune des revendications 1 à 10, 12 ou 13, caractérisée par le fait qu'elle comprend :16. Ink composition for gravure printing of a sheet according to one of claims 1 to 10, 12 or 13, characterized in that it comprises:
- au moins des particules métallisées ou en plastique irisé non sensibles aux solvants aqueux ou non aqueux, résistant à des températures supérieures à 100°C et résistant à la lumière,- at least metallized or iridescent plastic particles not sensitive to aqueous or non-aqueous solvents, resistant to temperatures above 100 ° C and resistant to light,
- au moins un liant aqueux à base de caséine,- at least one aqueous binder based on casein,
- au moins un insolubilisant,- at least one insolubilizer,
- au moins un solvant eau/alcool.- at least one water / alcohol solvent.
17. Stratifié comportant au moins une feuille décor selon Tune des revendications 1 à il et 13 à 14 et comportant une feuille protectrice overlay. 17. Laminate comprising at least one decorative sheet according to one of claims 1 to 11 and 13 to 14 and comprising a protective overlay sheet.
PCT/FR1991/000084 1990-02-06 1991-02-05 Decorative sheets comprising metallized or iridescent plastic flakes WO1991012146A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69100943T DE69100943T2 (en) 1990-02-06 1991-02-05 DECORATIVE FILM PROVIDED WITH METAL SCALES OR METALIZED FLAKES, IN PARTICULAR FOR THE PRODUCTION OF LAMINATE PANELS.
AU72365/91A AU651809B2 (en) 1990-02-06 1991-02-05 Decorative sheets comprising metallized or iridescent plastic flakes
AT91903889T ATE99604T1 (en) 1990-02-06 1991-02-05 DECORATIVE FOIL WITH METALLIC SCALES OR METALLIZED FLAKES, ESPECIALLY FOR THE PRODUCTION OF LAMINATE PANELS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9001357A FR2657816B1 (en) 1990-02-06 1990-02-06 DECORATIVE SHEETS WHICH CAN BE USED IN PARTICULAR FOR THE MANUFACTURE OF LAMINATE PANELS AND INCLUDING METALLIC OR IRIDESCENT FLAKES.
FR90/01357 1990-02-06

Publications (2)

Publication Number Publication Date
WO1991012146A2 true WO1991012146A2 (en) 1991-08-22
WO1991012146A3 WO1991012146A3 (en) 1991-10-03

Family

ID=9393427

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1991/000084 WO1991012146A2 (en) 1990-02-06 1991-02-05 Decorative sheets comprising metallized or iridescent plastic flakes

Country Status (7)

Country Link
EP (1) EP0513155B1 (en)
AU (1) AU651809B2 (en)
DE (1) DE69100943T2 (en)
DK (1) DK0513155T3 (en)
ES (1) ES2050535T3 (en)
FR (1) FR2657816B1 (en)
WO (1) WO1991012146A2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0594753A1 (en) * 1991-07-18 1994-05-04 International Paper Company Aesthetic surface layer composition
FR2718997A1 (en) * 1994-04-22 1995-10-27 Ober Ste Ind Process for forming decorative marquetry-type panel etc.
US5466511A (en) * 1991-07-18 1995-11-14 Nevamar Corporation Coated transfer sheet and laminate produced therefrom
US5702806A (en) * 1991-07-18 1997-12-30 O'dell; Robin D. Decorative laminate surface layer
US5866207A (en) * 1991-07-18 1999-02-02 International Paper Company Process for producing aesthetic surface layer composition and aesthetic surface layer
US7353994B2 (en) 2000-12-20 2008-04-08 Andrew John Farrall Security, identification and verification systems
FR2907808A1 (en) * 2006-10-31 2008-05-02 Arjowiggins Soc Par Actions Si Sheet useful in safety document e.g. banknote and identity card , comprises support and securing means including contiguous or spaced zones having interferential effect and tactile recognition element placed in same region of the zones
US10259251B2 (en) 2011-01-10 2019-04-16 Okt Limited Security token and authentication

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008063020A1 (en) * 2008-12-23 2010-06-24 Basf Se Overlay with effects

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB469754A (en) * 1934-10-26 1937-07-26 Du Pont Improved compositions containing formamide
GB786667A (en) * 1955-06-09 1957-11-20 Rainbo Cel Inc Iridescent flake and material
GB1107341A (en) * 1966-01-21 1968-03-27 Dow Chemical Co Paper
US3785911A (en) * 1971-06-29 1974-01-15 Exxon Research Engineering Co Metallic appearing laminate
FR2442719A1 (en) * 1978-06-19 1980-06-27 Arjomari Prioux Fibrous sheet and transparent plastic film laminate - contg. iridescent substance to give optical effects, e.g. wood vein appearance
US4769265A (en) * 1983-01-10 1988-09-06 Coburn Jr Joseph W Laminated decorative film and methods of making same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4880689A (en) * 1985-10-18 1989-11-14 Formica Corporation Damage resistant decorative laminate
AU628785B2 (en) * 1987-03-27 1992-09-24 Avery Dennison Corporation Exterior automotive dry paint transfer process and product

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB469754A (en) * 1934-10-26 1937-07-26 Du Pont Improved compositions containing formamide
GB786667A (en) * 1955-06-09 1957-11-20 Rainbo Cel Inc Iridescent flake and material
GB1107341A (en) * 1966-01-21 1968-03-27 Dow Chemical Co Paper
US3785911A (en) * 1971-06-29 1974-01-15 Exxon Research Engineering Co Metallic appearing laminate
FR2442719A1 (en) * 1978-06-19 1980-06-27 Arjomari Prioux Fibrous sheet and transparent plastic film laminate - contg. iridescent substance to give optical effects, e.g. wood vein appearance
US4769265A (en) * 1983-01-10 1988-09-06 Coburn Jr Joseph W Laminated decorative film and methods of making same

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5866208A (en) * 1991-07-18 1999-02-02 International Paper Company Process for producing aesthetic surface layer composition and aesthetic surface layer
EP0594753A1 (en) * 1991-07-18 1994-05-04 International Paper Company Aesthetic surface layer composition
US5866209A (en) * 1991-07-18 1999-02-02 International Paper Company Process for producing aesthetic surface layer composition and aesthetic surface layer
US5466511A (en) * 1991-07-18 1995-11-14 Nevamar Corporation Coated transfer sheet and laminate produced therefrom
US5702806A (en) * 1991-07-18 1997-12-30 O'dell; Robin D. Decorative laminate surface layer
US5866207A (en) * 1991-07-18 1999-02-02 International Paper Company Process for producing aesthetic surface layer composition and aesthetic surface layer
EP0594753A4 (en) * 1991-07-18 1994-08-24 Nevamar Corp Aesthetic surface layer composition
FR2718997A1 (en) * 1994-04-22 1995-10-27 Ober Ste Ind Process for forming decorative marquetry-type panel etc.
US7353994B2 (en) 2000-12-20 2008-04-08 Andrew John Farrall Security, identification and verification systems
WO2008053130A2 (en) * 2006-10-31 2008-05-08 Arjowiggins Security Sheet having a tactile effect and an interferential effect and security document comprising the same
FR2907808A1 (en) * 2006-10-31 2008-05-02 Arjowiggins Soc Par Actions Si Sheet useful in safety document e.g. banknote and identity card , comprises support and securing means including contiguous or spaced zones having interferential effect and tactile recognition element placed in same region of the zones
WO2008053130A3 (en) * 2006-10-31 2008-06-26 Arjowiggins Security Sheet having a tactile effect and an interferential effect and security document comprising the same
US9512570B2 (en) 2006-10-31 2016-12-06 Arjowiggins Security Sheet having a tactile effect and an interferential effect and security document comprising the same
US10259251B2 (en) 2011-01-10 2019-04-16 Okt Limited Security token and authentication

Also Published As

Publication number Publication date
EP0513155A1 (en) 1992-11-19
AU7236591A (en) 1991-09-03
DK0513155T3 (en) 1994-03-21
AU651809B2 (en) 1994-08-04
DE69100943D1 (en) 1994-02-17
FR2657816B1 (en) 1992-12-11
WO1991012146A3 (en) 1991-10-03
EP0513155B1 (en) 1994-01-05
DE69100943T2 (en) 1994-05-19
ES2050535T3 (en) 1994-05-16
FR2657816A1 (en) 1991-08-09

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