US20130180120A1 - Moisture Regulating Element for Use In Packaging - Google Patents
Moisture Regulating Element for Use In Packaging Download PDFInfo
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- US20130180120A1 US20130180120A1 US13/724,471 US201213724471A US2013180120A1 US 20130180120 A1 US20130180120 A1 US 20130180120A1 US 201213724471 A US201213724471 A US 201213724471A US 2013180120 A1 US2013180120 A1 US 2013180120A1
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- Prior art keywords
- layer
- moisture
- pulp fibres
- packaging
- pulp
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Packages (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
A moisture-regulating element for use in packaging is claimed, which comprises a layer of pulp fibres and optionally further layers, characterized in that the element contains means which are able to regulate the moisture content.
The moisture-regulating element may be used in packaging for the transport and other storage of moisture-sensitive products or can serve as such, in order to store these products under optimal moisture conditions.
Description
- This application claims priority to German patent application No. 202012100002.4 filed on Jan. 2, 2012, the entire disclosure of which is hereby incorporated herein by reference.
- The present invention relates to a moisture-regulating element for use in packaging, which comprises a layer of pulp fibres and optionally further layers.
- Storing foodstuffs under optimal conditions means that parameters such as the ambient temperature and the relative atmospheric humidity must be controlled or influenced appropriately. The increase in the relative atmospheric humidity in an area, which can have a detrimental effect on the quality of the food, is caused by many parameters, such as temperature fluctuations, sweating of the products (also designated breathing), moisture which is given off by the product itself, (bio)chemical reactions within the product. In order to optimize the conditions under which the goods are stored, the foodstuffs are packaged in accordance with their type and consistency. In this respect, it is primarily necessary to take into account the fact that, when relatively large quantities of moisture occur, i. e. the relative atmospheric humidity exceeds values of 80%, growth of the microorganisms such as mould is greatly promoted.
- Many foodstuffs are packaged in order to protect them against external influences, in particular including against atmospheric oxygen and against drying out and to ensure better quality and also a longer shelf life. The condensation that forms is usually easily visible in the packaging and therefore has a detrimental effect on the visual impression of the product. In addition, a relatively high atmospheric humidity constitutes a good environment for the growth of microorganisms.
- The optimal conditions of temperature and atmospheric humidity are of great importance, not only for foodstuffs which are packaged in domestic quantities that are intended for private consumption, but also when storing the products at the producer, during transport and in trade. There are a large number of other products which need constant contents of atmospheric humidity, such as many electronic devices, clothing, etc.
- DE 40 00 143 discloses packaging or a container for foodstuffs and luxury items, e. g. for tobacco products, which contains a nonwoven for moisture control. This nonwoven, as a storage nonwoven, is intended to have a high water absorption capacity, it is enclosed by a material layer that is largely impermeable to water vapour and is connected to the packaging atmosphere by a second nonwoven, which is intended to compensate for the moisture losses from the packaging atmosphere and has a predefined equilibrium moisture content.
- DE 20 2009 005 971 discloses an absorbent mat built up in several layers as an inlay for foodstuff packaging, which has a liquid-impermeable base layer, a layer of an absorbent material and a covering layer that is permeable to liquids, the base layer and the covering layer permeable to liquids projecting beyond the layer of absorbent material on at least two sides. The layer of an absorbent material is built up substantially from pulp fibres.
- When storing foodstuffs, but also other moisture-sensitive products, on the one hand it is desirable that the foodstuff or product is stored in an environment which has a certain humidity in order to prevent drying out. On the other hand, it is intended to avoid the relative atmospheric humidity, which not only forms a good basis for the growth of mould and microorganisms but also impairs the quality of the foodstuff or product, becoming too high.
- The present invention was based on the object of providing a material which can be used in packaging for the transport and other storage of moisture-sensitive products or can serve as such, in order to store these products under optimal moisture conditions.
- This material should be configured such that it is suitable for a large number of products and different packaging forms and can be matched to these.
- The subject of the present invention is accordingly a moisture-regulating element for use in packaging, which comprises a layer of pulp fibres and optionally further layers, characterized in that the element contains means which are able to regulate the moisture content.
- The moisture-regulating element according to the invention has the advantage that it essentially consists of materials that are simple to obtain and are inexpensive. The pulp fibres are a material that can be obtained inexpensively, which is available in large quantities and, furthermore, can easily be processed. Furthermore, as a natural material, it is not only environmentally friendly but is also compatible with most foodstuffs and other products to be protected against moisture.
- According to the invention, the moisture-regulating element contains means which are able to regulate the moisture content of the air. These means are substances (materials or material mixtures) which, upon contact with air, are intrinsically capable of drawing moisture from the air or giving up moisture thereto. The moisture can be adsorbed (hydration) or given up (dewatering). In the case of moisture adsorption, for example on a salt, as a result of the contact of moisture with the salt, a saturated solution is formed; the means used dissolves slowly but remains between the pulp fibres. On the other hand, the means used can also give up the bound water again when the moisture content becomes too low (in relation to the capability of the means used to bind water); in this case moisture is given up to the air, i. e. the means is dewatered. A balance between the means and the surrounding is achieved.
- In one possible refinement, the substances can also be used in the form of solutions which, when they pick up H2O from the air, solidify or form a gel. The humidity is removed from the balance between surrounding and means. With the aid of such materials, the environment can be reduced to a relative atmospheric humidity of the environment down to virtually 0%, depending on the choice of these materials.
- Examples of such moisture-regulating means are inorganic salts, sugar, starches or modified starch products, alkali and alkaline earth metal salts of alcohols, silicates, polymers, such as gel-forming polymers including super-absorbent polymers, and mixtures of the above. These means can be chosen in accordance with the intended use and absorption capacity in relation to water and moisture. The suitable inorganic salts include, for example, sodium chloride, potassium chloride, zinc chloride, sodium carbonate, potassium carbonate, sodium sulphate, potassium sulphate, sodium nitrate, potassium nitrate, sodium hydroxide, potassium hydroxide, calcium chloride, calcium oxide and any desired mixtures of the above. The sugars include, for example, fructose, glucose and saccharose. As alcohols, which can be converted into the corresponding alcoholates, glycerine and glycol should be mentioned. The suitable silicates include silicon gel and bentonite. It is also possible to use mixtures of different materials. The choice of these substances is made on the basis of the atmospheric humidity to be established and the product to be stored.
- The moisture-regulating means are usually used in the form of solids, preferably in particulate form. The means may be spread on the lay of pulp fibres. In a preferred embodiment the moisture-regulating means are incorporated into the layer in form of particulate or granular material. In this embodiment the means are distributed layerwise statically. The means may be incorporated during the process of preparing the layer of pulp fibres.
- The moisture-regulating element according to the invention is preferably a flat element. This can be cut to the desired size and inserted into a packaging or can be part of this packaging. The layer of pulp fibres has the advantage that these can firstly, so to speak, act as a carrier material for the moisture-adsorbing means, secondly a layer of pulp likewise exhibits adsorbent properties, i.e. as soon as the adsorption capacity of the moisture-binding means become exhausted, i.e. when the moisture-binding means dissolves slowly as a result of the moisture, this solution formed can be picked up by the pulp fibres, so that the product to be protected and packaged does not come into contact with the moisture.
- The layer of pulp fibres is preferably present in the form of nonwoven-type or fabric-type material. The pulp fibres have the advantage that these are materials that are inexpensive and available on the market and are simple to process. Air-laid nonwovens or tissue papers have proven to be particularly suitable as adsorption layers. In a preferred embodiment, the absorption layer of pulp fibres is an air-laid. In a particularly preferred refinement, the pulp layer has embossed areas distributed over its surface, in which the fibres are pressed against one another more intensely than in the other areas and, as a result, are connected in an adhesive-free and/or binder-free manner. Preferably in this embodiment, the absorbent core is produced from a fibrous web made of pulp fibres which, while the embossed areas in the pressure area are being produced, are calendered and connected in a point or line form and in a binder-free manner. The production of such materials is described, for example, in
European Patent 1 032 342. The fibre layer of the layer of pulp fibres in this refinement is structured such that the pulp fibres outside these discrete embossed areas are present loosely one above another or adhering only weakly to one another, whereas in the embossed areas they are pressed against one another and enter into an intimate connection with the respectively adjacent pulp fibres. As a result of this refinement, complete omission of adhesives and binders for forming the pulp fibre composite is possible, which permits simple and complete recycling. In the embossed areas, the fibres do not merely adhere to one another. Instead, as a result of the application of pressure, adjacent pulp fibres in these embossed areas are firmly connected to one another. This connection is even able to withstand the action of moisture, so that the absorption layer used in accordance with the invention is distinguished by a mechanical load-bearing ability even in the wet state. The areas outside the discrete embossed areas, in which the fibres are present loosely one above another or adhering only weakly to one another, are distinguished by a good absorption capacity. The means for binding moisture are also preferably present in these areas. These can be distributed within the individual pulp fibres and, in the areas outside the discrete embossed regions, on account of the looser composite of the pulp fibres, they are in good contact with the environment, in particular with the moisture. If relatively large quantities of moisture or liquid are present, then these are picked up by the looser composite of pulp fibres, distributed over the entire area of the absorption layer and held there. - In a possible embodiment a further layer of nonwoven, tissue or any other thin material is applied above and/or under the layer of pulp fibres. This further layer may prevent that the product to be packaged does not come into contact with the moisture-regulating means.
- A further subject of the present invention is the use of the element described above as an inlay in packaging or as part of packaging of solid or liquid foodstuffs, medicines, chemical substances, dangerous materials, electronic products, cultural objects and decorative plants.
- The element according to the invention will be explained in more detail below by using an exemplary embodiment and with reference to the drawing, in which:
-
FIG. 1 shows a greatly enlarged partial section through the element, -
FIG. 2 shows a greatly enlarged partial section through a multilayer element, -
FIG. 3 shows a greatly enlarged section through a further multilayer element, -
FIG. 4 shows a partial section through a packaging. -
FIG. 1 shows a partial section through the moisture-regulatingelement 12 according to the invention. This element has alayer 1 which has a high proportion ofpulp fibres 2, in which moisture-bindingmeans 3 are incorporated. Thelayer 1 forms the core of theelement 12. - The
pulp fibres 2 are compacted in theembossed areas 4 and in this way are connected to one another. In the embodiment illustrated here, theembossed areas 4 are located opposite one another on the upper and lower side, so that in the respectiveembossed area 4 only a narrow web of interconnected pulp mass remains. The other areas of thelayer 1, arranged between the respectiveembossed areas 4, exhibit looser pulp layering. An intimate connection between thepulp fibres 2 does not exist in these areas. - The adsorption behaviour and the retention capacity of moisture is determined by the
layer 1 made ofpulp fibres 2 and the moisture-bindingmeans 3 used and, if appropriate, further materials which can be incorporated in thelayer 1. In the embodiment illustrated here, thelayer 1 in theembossed areas 4 has the shape of truncated pyramids or truncated cones; the angle of the slopes formed should preferably lie between 10° and 45° . - Bulk material that is presently available inexpensively can be used as pulp material for the
fibrous web 1. Use is preferably made of what is known as fluff-pulp, which is distinguished by a very good binding behaviour, which improves the mechanical strength of the element with respect to vertical tensile forces. - During the production of the element according to the invention, first of all a web material is produced, which is then cut to the desired size. For the production of the web material in a continuous process, the fibrous web later forming the
layer 1 is produced from a loose filling offibres 2 loosened in the air stream and made of defibered pulp (wood pulp) and the moisture-bindingmeans 3 and, if appropriate, further incorporated materials. For the production of a standardized, defiberized product, recourse can be had to renewable wood raw materials available on the market. - The loose pulp filling process as a starting product for the
layer 1 permits dry processing of thepulp fibres 2 and therefore, during the subsequent embossing of the multilayer web between two structured rolls, very good compaction of the pulp fibres in the discreteembossed areas 4. Outside theseembossed areas 4, the fibres lie loosely on one another, which influences the behaviour of the incorporated moisture-binding means to the effect that the moisture does not impair the predefined binding capability according to the binding capacity (hygroscopicity), moreover, as a result of the loose layering of the fibres between the respective embossed areas, the flexibility of theelement 1 is improved and, when theelement 1 is used in packaging, it serves simultaneously as a protection against shocks, etc. for the product to be packaged. The element according to the invention can be used as an inlay in foodstuffs packaging, for example for convenience products, bread, sausage products including meatballs. - The production of the element according to the invention is carried out preferable from web material, which is fabricated in a continuous process. In air-assisted layering, firstly the
pulp fibres 2 and themeans 3 able to bind moisture and, if appropriate, further additives for binding thelayer 1 are laid. Then, the production of theembossed areas 4 is carried out in a calender having two structured calender rolls. A possible production method is disclosed, for example, inEuropean Patent 1 032 342. - Depending on how thick the finished web is intended to be, it is also possible to lay a plurality of layers made of
pulp fibres 2 and means 3 and, if appropriate, further additives over one another and then to introduce them into the calender in order to obtain theembossed areas 4. In this way, the moisture-binding means is incorporated layer by layer in the web. A homogenous distribution is achieved if the moisture-binding means are processed together with the pulp fibres, that is to say distributed uniformly in the pulp fibres, to form web material. - A
multilayer web 5, as illustrated inFIG. 2 , can be produced, for example, by acovering layer 6 or abase layer 7 being used first as a carrier layer. The loose filling ofpulp fibres 2 and the moisture-bindingmeans 3 is then applied to thiscarrier layer layers pulp layer 1 previously, that is to say before the final leading through the calender. - The two
layers - The embodiment illustrated in
FIG. 2 shows a total of 3 layers, specifically a web assembled from thelayers - The lowest layer is used as a base material and a layer is applied as an upper layer. The
covering layer 6 has the advantage that the product to be packaged does not come directly into contact with the pulp fibres and the means adsorbing the liquid or moisture-regulating means, resp. - Suitable as a base material and also as a
covering layer 6 are, in particular, those materials through which the water vapour can pass but which are impermeable to the moisture-binding/-regulating means incorporated. Examples of suitable materials are nonwoven-like materials and tissue based on plastic or cellulose. - The
edges 14 of the element may be open or closed. -
FIG. 3 shows an element according to the invention which has the same structure as the element fromFIG. 2 but is surrounded byfurther layers further layers layer 1 and/or thelayers layers layer 1 and thelayers layers - In a possible embodiment one of the
further layers layer 9 directed to the product may be permeable for moisture/liquid and thelayer 8 directed to the package is liquid-impermeable. This embodiment prevents that liquid passes from the bottom of the package back to the product in case the capacity of theinventive element 12 is exceeded and due to the weight of theproduct 12 the liquid is squeezed out of theelement 12 and collected at the bottom of package. -
FIG. 4 shows a foodstuffs packaging comprisinglower shell 10 andlid 11, into which anelement 12 according to the invention has been inserted. The storedproduct 13 is laid on theelement 12 and the packaging is closed by thelid 11. - A packaging illustrated in
FIG. 4 was used to investigate the influence of the element according to the invention on the shelf life of stored foodstuffs. To this end, the element according to the invention was inserted into a packaging; for the purpose of comparison an element with an identical structure but without moisture-binding means was inserted. Different foodstuffs were stored in this packaging over a number of days; the visual appearance of these foodstuffs was compared. -
Storage Visual appearance period According to the Stored foodstuff (days) invention Comparison Rolls 12 Slightly shrunk Clear signs of mould Rolls 17 Dry Completely affected by mould Toast 12 Unchanged Slight mould spots Toast 6 Dry and hard Completely surrounded by mould Fresh cheese 15 No condensation Considerable amounts of condensation Hard cheese 15 No condensation Considerable amounts of condensation Sandwich 2 No condensation, Bread very damp and bread not soggy soggy - As the above illustration makes clear, the shelf life of foodstuffs could be improved considerably.
- The reduction in moisture and condensation not only leads to a prolongation of the shelf life, in addition the sensory impression of the foodstuffs is considerably better. Not only the appearance of the products but the storage after some days was still very good as compared with the conventionally stored foodstuffs, in addition the tactile properties were very much better, for example the bread which was used for the sandwiches was not soggy, as compared with the conventionally stored product.
- In the case of fresh cheese, hard cheese, a considerable improvement in the visual properties can be observed. In the case of these products, only the sensory change was studied; a prolongation of the shelf life whilst maintaining optimal visual properties is also possible.
- For ease of reference the following list of reference symbols is provided.
- 1 Layer
- 2 Pulp fibres
- 3 Moisture-binding means
- 4 Embossed area
- 5 Multilayer web
- 6 Covering layer
- 7 Base layer
- 8, 9 Further layer
- 10 Lower shell
- 11 Lid
- 12 Element according to the invention
- 13 Stored product
- 14 Edge
Claims (15)
1. A moisture-regulating element for use in packaging, the element comprising a layer of pulp fibres and optionally further layers, characterized in that the element contains means for regulating the moisture content.
2. The element of claim 1 , in which the means for regulating the moisture content is selected from the group consisting of inorganic salts, sugars, starches or modified starch products, alkali and alkaline earth metal salts of alcohols, silicates, polymers, gel-forming polymers, super-absorbent polymers, and mixtures thereof.
3. The element of claim 2 , in which the inorganic salts are selected from the group consisting of sodium chloride, potassium chloride, zinc chloride, sodium carbonate, potassium carbonate, sodium sulphate, potassium sulphate, sodium nitrate, potassium nitrate, sodium hydroxide, potassium hydroxide, calcium chloride and calcium oxide.
4. The element of claim 2 , in which the sugars are selected from the group consisting of fructose, glucose and saccharose.
5. The element of claim 2 , in which the alcoholates are of glycerine or glycol.
6. The element of claim 2 , in which the silicate is a silica gel, zeolite, kaolin or bentonite.
7. The element of claim 1 , further comprising a base layer is arranged above or below the layer of pulp fibres.
8. The element of claim 7 , further comprising a covering layer arranged on a side opposite the base layer.
9. The element of claim 8 , in which the base layer and the covering layer are the same or different and are a nonwoven or tissue.
10. The element of claim 8 , characterized in that a further layer that is impermeable to liquids is arranged on the base layer and/or the covering layer.
11. The element of claim 10 , characterized in that the layer of pulp fibres is substantially built up from irregularly arranged pulp fibres which, in some areas, are connected to one another by pressing while compacting the pulp fibres in the pressed areas.
12. The element of claim 11 , in which the pulp fibres in the pressed areas are pressed with the application of heat.
13. The element of claim 10 , in which the further layer is one of cotton, nonwoven or perforated film.
14. (canceled)
15. (canceled)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US15/497,772 US10883734B2 (en) | 2012-01-02 | 2017-04-26 | Moisture regulating element for use in packaging |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202012100002U DE202012100002U1 (en) | 2012-01-02 | 2012-01-02 | Moisture control element for use in packaging |
DE202012100002.4 | 2012-01-02 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US15/497,772 Continuation US10883734B2 (en) | 2012-01-02 | 2017-04-26 | Moisture regulating element for use in packaging |
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US20130180120A1 true US20130180120A1 (en) | 2013-07-18 |
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ID=47561147
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US13/724,471 Abandoned US20130180120A1 (en) | 2012-01-02 | 2012-12-21 | Moisture Regulating Element for Use In Packaging |
US15/497,772 Active US10883734B2 (en) | 2012-01-02 | 2017-04-26 | Moisture regulating element for use in packaging |
Family Applications After (1)
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US15/497,772 Active US10883734B2 (en) | 2012-01-02 | 2017-04-26 | Moisture regulating element for use in packaging |
Country Status (8)
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US (2) | US20130180120A1 (en) |
EP (1) | EP2609984B1 (en) |
CA (1) | CA2800357C (en) |
DE (1) | DE202012100002U1 (en) |
DK (1) | DK2609984T3 (en) |
ES (1) | ES2782500T3 (en) |
MX (1) | MX349082B (en) |
PT (1) | PT2609984T (en) |
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ES2673488A1 (en) * | 2016-12-22 | 2018-06-22 | Universitat De València | PACKAGING APPLICABLE TO DEPOSIT AND CONSERVATION OF FOODSTUFFS AND USE OF A CONSERVATIVE AGENT (Machine-translation by Google Translate, not legally binding) |
EP3374566A4 (en) * | 2015-11-09 | 2019-05-15 | Stora Enso Oyj | Active moisture control material for packaging |
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DE102013103834A1 (en) * | 2013-04-16 | 2014-11-13 | McAirlaid's Vliesstoffe GmbH | Method for ripening meat |
TR201305180A2 (en) * | 2013-05-02 | 2013-12-23 | Nedim Vidinlisan | Antibacterial thermobox that enables cooked hot transportable foods such as pizza, pita, lahmacun and hamburger to be delivered to the consumer via delivery service |
DE102016000481A1 (en) * | 2016-01-20 | 2017-07-20 | K.L. Kaschier- Und Laminier Gmbh | packing material |
EP3398877A1 (en) | 2017-05-03 | 2018-11-07 | Giusti, Emilio | Transport package for prepared warm food |
DE202017006954U1 (en) | 2017-05-03 | 2019-02-13 | Emilio Giusti | Two-piece, stackable transport packaging for food |
DE202017106402U1 (en) | 2017-10-23 | 2017-11-06 | Harald Heinz Peter Benoit | Container for protecting foodstuffs against mold |
CN109012058A (en) * | 2018-07-13 | 2018-12-18 | 安徽锦华氧化锌有限公司 | A kind of nontoxic free from extraneous odour type rubber dehumidizer |
DE202018104337U1 (en) * | 2018-07-27 | 2019-10-30 | McAirlaid's Vliesstoffe GmbH | Web material for use in food packaging |
CN110173785B (en) * | 2019-05-30 | 2021-10-26 | 广东美的制冷设备有限公司 | Humidifying filter element for air conditioning equipment and air conditioning equipment |
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- 2012-12-19 PT PT121980361T patent/PT2609984T/en unknown
- 2012-12-19 EP EP12198036.1A patent/EP2609984B1/en active Active
- 2012-12-19 ES ES12198036T patent/ES2782500T3/en active Active
- 2012-12-21 US US13/724,471 patent/US20130180120A1/en not_active Abandoned
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3374566A4 (en) * | 2015-11-09 | 2019-05-15 | Stora Enso Oyj | Active moisture control material for packaging |
US11180310B2 (en) | 2015-11-09 | 2021-11-23 | Stora Enso Oyj | Active moisture control material for packaging |
ES2673488A1 (en) * | 2016-12-22 | 2018-06-22 | Universitat De València | PACKAGING APPLICABLE TO DEPOSIT AND CONSERVATION OF FOODSTUFFS AND USE OF A CONSERVATIVE AGENT (Machine-translation by Google Translate, not legally binding) |
Also Published As
Publication number | Publication date |
---|---|
US10883734B2 (en) | 2021-01-05 |
EP2609984B1 (en) | 2020-02-26 |
DE202012100002U1 (en) | 2013-04-05 |
EP2609984A1 (en) | 2013-07-03 |
PT2609984T (en) | 2020-05-07 |
US20170356662A1 (en) | 2017-12-14 |
MX349082B (en) | 2017-07-10 |
CA2800357A1 (en) | 2013-07-02 |
DK2609984T3 (en) | 2020-05-11 |
CA2800357C (en) | 2019-10-22 |
ES2782500T3 (en) | 2020-09-15 |
MX2013000114A (en) | 2014-01-09 |
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