EP0229550A1 - Packungsmaterial für feuchtempfindliche Produkte und daraus bestehende Verpackungen. - Google Patents

Packungsmaterial für feuchtempfindliche Produkte und daraus bestehende Verpackungen. Download PDF

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Publication number
EP0229550A1
EP0229550A1 EP86402660A EP86402660A EP0229550A1 EP 0229550 A1 EP0229550 A1 EP 0229550A1 EP 86402660 A EP86402660 A EP 86402660A EP 86402660 A EP86402660 A EP 86402660A EP 0229550 A1 EP0229550 A1 EP 0229550A1
Authority
EP
European Patent Office
Prior art keywords
water
support sheet
material according
retaining
packaging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86402660A
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English (en)
French (fr)
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EP0229550B1 (de
Inventor
Robert Temple
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Charentaise de Participations Ste SA
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Charentaise de Participations Ste SA
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Publication of EP0229550A1 publication Critical patent/EP0229550A1/de
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Publication of EP0229550B1 publication Critical patent/EP0229550B1/de
Anticipated expiration legal-status Critical
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Classifications

    • 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
    • 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
    • B65D81/266—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 gases, e.g. oxygen absorbers or desiccants
    • B65D81/267—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 gases, e.g. oxygen absorbers or desiccants the absorber being in sheet form
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • Y10T428/31681—Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • Y10T428/31692—Next to addition polymer from unsaturated monomers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • Y10T428/31692—Next to addition polymer from unsaturated monomers
    • Y10T428/31699—Ester, halide or nitrile of addition polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/3188—Next to cellulosic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/3188—Next to cellulosic
    • Y10T428/31884—Regenerated or modified cellulose
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/3188—Next to cellulosic
    • Y10T428/31895—Paper or wood
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31971—Of carbohydrate
    • Y10T428/31993—Of paper

Definitions

  • the invention relates to a material intended for the packaging of a product sensitive to humidity, a method of manufacturing such a material and a packaging comprising such a material.
  • the invention relates to materials in the general form of sheets, more particularly intended for the packaging of products such as cheeses, meats, etc.
  • the function of such packaging is to protect the packaged product from the outside ambient atmosphere, as well as from untimely contacts.
  • Such packaging also has the function of having a selective permeability to gas and to humidity, taking into account the modifications that the packaged product may undergo, likely to go as far as altering the product, in particular its taste.
  • the function of such packaging is to regulate the humidity and / or exudate from the packaged product.
  • a meat packing includes a base formed of a single sheet of cellulosic fibers, in particular paper, and a waterproof agent placed on the external face of the sheet of cellulosic fibers or impregnating it at least partially.
  • the waterproof agent may be a ureaformol resin.
  • such a package is resistant to humidity, while at least partially allowing aqueous liquids to pass through the fibers.
  • packaging does not fulfill the function of reciprocal gas exchanges between the packaged product and the external ambient atmosphere, due to the presence of the impermeable agent.
  • packaging fulfill the function of absorbing moisture. from the packaged product, if not to a very limited extent.
  • the package comprises a layer of moisture-absorbent fibers, in particular paper, and a film resistant to moisture, provided with small perforations (synthetic resin).
  • a layer of moisture-absorbent fibers in particular paper
  • a film resistant to moisture provided with small perforations (synthetic resin).
  • a package comprising a sheet or strip of metal coated with a thermoplastic foil, capable of absorbing moisture or swelling in the liquid.
  • a packaging thus produced is waterproof but essentially makes it possible to produce a container of the "tin can" type.
  • the object of the invention is a material intended for producing a packaging for products sensitive to humidity, capable of controlling the humidity of the atmosphere surrounding the product thus packaged.
  • the invention provides a material which consists of a combination of at least one support sheet and at least one water-retaining material intimately associated with the support sheet, by means of association.
  • a material which consists of a combination of at least one support sheet and at least one water-retaining material intimately associated with the support sheet, by means of association.
  • Such a material is intended for packaging a food or other product, sensitive to humidity, and has the function of regulating the humidity and / or the exudate coming from the product thus packaged.
  • the moisture and / or exudate from the packaged product is absorbed and retained by the water-retaining material, without affecting the physical qualities of the support sheet, in particular its behavior, and without affecting the packaged product itself.
  • the material according to the invention is capable of a certain desorption, the absorption and desorption being a function of the humidity and the temperature prevailing inside the packaging and of that prevailing in the ambient atmosphere outside.
  • the support sheet can be in a single layer or in several layers; impervious to gas and / or water vapor, or, on the contrary, permeable.
  • the water-retaining material can be incorporated or superimposed on the support sheet.
  • the water-retaining material itself can be made of a resin or another material. The material thus produced may comprise one or more layers.
  • Figures 1, 2, 3, 4 are four schematic views in cross section illustrating four embodiments of the material according to the invention.
  • Figure 5 is a schematic perspective view of a package made from the material.
  • the invention relates to a material for packaging a product; a method of manufacturing such a material; and a packaging comprising such a material, intended for this product.
  • the product per se, for which the packaging is intended, is not directly the subject of the invention. It is preferably a product sensitive to humidity, the packaging having the function of regulating the humidity and / or the exudate coming from this product, once packaged.
  • a product can be a food product, such as cheese, meat, fish, cookies or another living product such as flowers or finally, products such as mechanical, electronic or electrical parts.
  • the material according to the invention is characterized in that it comprises in combination at least one support sheet 1 and at at least one water-repellent material 2 intimately associated with the support sheet by association means 3.
  • Such a material allows the realization of a packaging for the product mentioned above and its function is to regulate the humidity and / or the exudate coming from the product.
  • the support sheet 1 of the material according to the invention essentially has the function of ensuring a physical hold of the material, as well as of constituting a support for the water-retaining material.
  • the material according to the invention can be the subject of several variant embodiments. These alternative embodiments arise from the alternative embodiments of the support sheet 1, the water-retaining material 2, the association means 3, as well as from the very constitution of the material. These different variants in the production of the constituent means of the material can be combined with one another.
  • the support sheet 1 is generally a flat element; in the form of a plate, tablecloth, strip or any other; flexible or rigid; capable of being shaped to constitute packaging; having, in any case, a certain mechanical strength.
  • the support sheet 1 comprises a single layer or, on the contrary, several layers. It is homogeneous or heterogeneous. It is impermeable to gas and / or water vapor or, on the contrary, permeable to gas and / or water vapor. It is continuous or, on the contrary, discontinuous. It is provided with perforations or microperforations 4 with or without removal of materials or, on the contrary, without such perforations.
  • the material constituting the support sheet 1 is preferably chosen from the group comprising paper, cellulose films, regenerated pure cellulose, polymers, in particular, polyethylene, polypropylene, polyvinyl chloride, polyester.
  • the material constituting the support sheet is a polymer comprising micropores or having a certain permeability to water vapor.
  • the expression “support sheet 1 permeable to gas and / or water vapor” means a support sheet having a permeability to oxygen greater than 18 cm / m2. 24 hours and to water vapor more than 750 g / m2. 24 hours.
  • the expression "gas-tight and / or water-vapor-tight" support sheet is understood to mean a support sheet having a permeability at values lower than those mentioned above.
  • the support sheet 1 is itself associated with at least one other additional sheet, in particular an aluminum sheet.
  • the water-retaining material 2 may consist of a water-retaining resin chosen from the group formed by polyacrylonitriles or copolymers based on acrylonitriles treated with aqueous alkaline solutions of aliphatic or cycloaliphatic alcohols, mono or polyfunctional, of higher melting point or equal to about 110 ° C; polymers obtained by polymerization of starch in dispersion in water and of a saturated monomer having a melting point greater than or equal to about 100 ° C; polycarboxyalkil celluloses; metal salts of hydrolyzed starch copolymers; copolymers of acrylic acid and ⁇ -olefins, or styrenes, or substituted styrenes; and polysaccharide derivatives containing carboxylic groups.
  • a water-retaining resin chosen from the group formed by polyacrylonitriles or copolymers based on acrylonitriles treated with aqueous alkaline solutions of aliphatic or cycloalipha
  • such a water-retaining resin has the property of having a final weight after absorption of water equal to a large number of times the initial weight before absorption of water. This coefficient multiplying the weight of the water-retaining resin can, in particular, reach or exceed 400.
  • the water-retentant material 2 is chosen from the group consisting of reaction products of starch-polyacrylonitrile graft copolymers and of a polyfunctional alcohol; copolymers salified acrylic oligosaccharides; hydrocolloidal polyelectrolytes; starch, casein or similar products; polyalcohols, in particular glycerin; glycolic derivatives.
  • the water-retaining material 2 consists of cellulosic fibers, in particular such as cotton.
  • the water-retaining material 2 consists of mineral salts, in particular sodium chloride.
  • the water-retaining material 2 consists of one or more composites, in particular paper or a nonwoven.
  • the water-retaining material is generally in solid, homogeneous or heterogeneous form, depending on the composition.
  • the water-retaining material 2 also has the property of being able to be intimately and permanently associated with the support sheet so as to form a whole with the latter. In particular, the water-retaining material 2 remains associated with the support sheet 1, even after the absorption of water.
  • the water-retaining material 2 is associated with the support sheet 1 by being either incorporated therein, or superimposed thereon. In the latter case, the water-retaining material can be placed on one of the faces or on both sides of the support sheet 1.
  • the water-retaining material 2 is distributed generally continuously or, on the contrary, discontinuously, in particular by points, by lines, etc.
  • the amount of water-repellent material 2 is adapted to the amount of water to be absorbed and this according to the product to be packaged, according to well known knowledge of the skilled person.
  • the means of association 3 of the water-retaining material 2 with the support sheet 1 have the function of ensuring cohesion of the material, even after the water-retentive material has absorbed a quantity of water which can be very large.
  • the association means 3 can also be the subject of several alternative embodiments. They can be formed by the water-retaining material itself having a certain tackiness or can be constituted by an additional material, such as an adjuvant.
  • the different variants of the support sheet 1, of the water-retaining material 2 and of the association means 3 can be combined with one another.
  • the material according to the invention may comprise the combination of several of the constituent means described above, for example several materials constituting the support sheet and / or several water-retaining materials and / or several means of association.
  • the material thus produced is in the form of a single layer.
  • this layer may itself include one or more support sheets and / or one or more water-retaining materials.
  • the material may comprise several elementary layers thus defined, these layers being associated intimately with one another or not.
  • FIG. 1 represents an elementary embodiment of the invention consisting of a support sheet 1, comprising perforations 4, intimately associated with a water-repellent material 2 by means of association 3.
  • FIG. 2 represents a second variant of the invention consisting of two support sheets, namely an aluminum sheet 5 and a support sheet 1, the latter being intimately associated with a water-retaining material 2 by means of association 3.
  • FIG. 3 represents a third variant of the invention consisting of two support sheets 1 intimately associated, respectively, with the upper and lower faces of a water-retaining material 2 by association means 3.
  • FIG. 4 represents a fourth variant of the invention made up of the superposition of two elementary layers of material according to FIG. 1, themselves intimately associated by association means 3.
  • the invention also relates to a method of manufacturing a material as it has just been defined.
  • a support sheet 1 and from a water-repellent material 2, as defined above and is closely associated with each other, thanks to the association means 3.
  • These association means 3 mainly use an adhesive power, either of the water-retaining material, or, as already indicated, of additional materials.
  • This material having this tackiness is either sprayed, or coated on the support sheet of and / or the water-retaining material or else intimately mixed with the water-retaining material 2, in particular with a varnish or an ink.
  • the spraying or coating is carried out continuously or even locally, in particular by points or by lines.
  • the invention also relates to a packaging of a product sensitive to humidity, as already indicated, using the material described above.
  • Such packaging may include at least one layer of such a material arranged to form a package by means of at least one fold 7 and / or a curvature. This layer has characteristics such that it can be welded and / or glued on itself, so as to form a package which can be hermetic at the place of its closure.
  • the packaging has a first part made of thermoformed synthetic material and sealed with a second material, one of the two or both as defined above.
  • the invention is more particularly intended for a product sensitive to humidity and in particular to a food product. Tests have made it possible to show that, in the case of a product such as soft cheese, the use of the material according to the invention makes it possible to extend the life of the cheese while improving its taste properties. In the case of flowers, the material according to the invention makes it possible to maintain the relative humidity inside the packaging by returning water. In the case of meat, or similar products, the invention makes it possible to absorb the juices or exudates from the product, while improving the appearance of the product. In the case of dry cookies, the invention makes it possible to keep the cookies their outfit or their crunchy character, by preventing them from becoming soft. In the case of the packaging of electrical parts, the use of the material according to the invention makes it possible to avoid oxidation.
  • the first embodiment consists of a material of which the support sheet 1 is a paper, the water-retaining material 2 is a polymer, the support sheet 1 and the water-retentive material 2 being combined in the following manner: the inner face of the paper is coated with water-repellent powder, itself bonded with discontinuously, namely by lines, by a cellulose derivative.
  • the material comprises a support which is made up of two layers, namely, a polypropylene film and a waxed paper, and a water-retaining material which is a tissue paper coated with acrylonitrile resin.
  • a support which is made up of two layers, namely, a polypropylene film and a waxed paper, and a water-retaining material which is a tissue paper coated with acrylonitrile resin.
  • the association is carried out in the following way: the muslin coated with acrylonitrile resin is fixed on the support cited by a resin, namely a cellulose derivative, allowing discontinuous bonding by lines, of the water-repellent material to the polypropylene film for the top and with waxed paper in contact with the product, for the underside.
  • the support sheet is a paper of 40 g per m2 and 40 microns thick.
  • the water-retaining material is a polyacrynonitryl resin manufactured by the company NORSOLOR under the brand AQUAKEEP 10 SH. This polyacrynonitryl resin and this paper were combined with one another by spraying the resin onto the paper, in amounts which can vary from 3 to 30 g of resin per m2 of paper and bonding using a sticky adjuvant such as a cellulose derivative.
  • a cellulose derivatives have been used: ethyl, hydroxyethyl cellulose.
  • the material thus produced was applied to soft cheeses, as well as pressed cheeses. It allowed a recovery of 30% in water compared to the initial weight of the packaging and the maintenance of a balance in terms of the open water (AW) activity of the cheese.
  • AW open water
  • a material comprising a support sheet according to Example 1, associated with a water-retaining material, namely cellulosic fibers derived from cotton, having a maximum length of the order of 6 mm. These cellulosic fibers are pulverized at the rate of 10 to 15 g of fibers per m2 of paper and glued continuously using a permanent adhesive such as MV7OH resin from WAKER.
  • a material was produced comprising a support sheet according to Example 1, associated with a water-retaining material, namely, a mineral salt in the form of powder, for example sodium chloride.
  • This sodium chloride powder having particles of approximately 6 microns is sprayed at the rate of 3 g per m2 of paper, and stuck continuously using a permanent adhesive, in the form of an emulsion, namely the resin.
  • MV 70H from WAKER.
  • the use of such a material allows the absorption and fixation of humidity of the order of 10% of the initial weight of the material, as well as a regulation of the diffusion of humidity.
  • a material was produced comprising a support sheet, namely a non-woven composite of 30 g per m2, consisting of synthetic and cellulosic fibers (NH 12 + NH 22 from the company BOLLORE), associated with a water-repellent material, according to the example. 1.
  • a material was produced comprising a support sheet according to Example 4, associated with a water-retaining material, according to Example 2.
  • a material was produced comprising a support sheet according to Example 4, associated with a water-retaining material, according to Example 3.
  • a material was produced comprising a support sheet, namely an LMS cellulosic film at a rate of 33.5 g per m2 (PVE AFNOR N 600 g per m2 24 hours) associated with a water-retaining material, namely, a crosslinked starch (DEXYLOSE 230, reference 3 122 6 L, from ROQUETTE).
  • a support sheet namely an LMS cellulosic film at a rate of 33.5 g per m2 (PVE AFNOR N 600 g per m2 24 hours) associated with a water-retaining material, namely, a crosslinked starch (DEXYLOSE 230, reference 3 122 6 L, from ROQUETTE).
  • This crosslinked starch is sprayed at a rate of 3 g / m2 on the cellulosic film and stuck to it continuously by means of an adjuvant, such as a cellulose derivative (nitrocellulose).
  • an adjuvant such as a cellulose derivative (nitrocellulose).
  • a material comprising a support sheet, namely polyvinyl chloride of approximately 34 g per m2, associated with a water-retaining material, namely a polyacrylonitrile resin of the order of 3 to 30 g per m2.
  • This polyacrylonitrile resin is sprayed onto the polyvinyl chloride and bonded to it using an adjuvant, namely an acrylic derivative fixing the polyacrylonitrile resin.
  • an adjuvant namely an acrylic derivative fixing the polyacrylonitrile resin.
  • the use of such a material made it possible to store 20% of the initial water weight of the material. The application was carried out for packaging fragile mechanical parts with water.
  • a material was produced comprising a support sheet, namely polypropylene of the order of 18 to 20 g per m2, associated with a water-repellent material, according to Example 8.
  • the association of this polypropylene and of this polyacrylonitrile resin is performed according to example 8.
  • a material was produced comprising a support sheet, namely base density polyethylene, of the order of 20 microns, associated with a water-retaining material according to Example 2.
  • a material was produced comprising a double support, namely an aluminum sheet 15 microns thick, complexed with paper of about 40 g, this support being associated with a water-repellent material, according to Example 1.
  • the polyacrylonitrile is dispersed with the adhesive, namely vinyl polymer, so as to achieve the association of polyacrylonitrile with paper.
  • a material was produced comprising a double support, namely an aluminum sheet 15 microns thick complexed with a cellulosic film according to Example 7, this support being associated with a water-retaining material, according to Example 7.
  • the water-retaining material is placed and glued continuously according to Example 11 between the aluminum foil and the cellulosic film.
  • a material comprising a double support consisting of an aluminum sheet 15 microns thick, complexed with a polypropylene, associated with a water-retaining material, namely casein.
  • the casein is sprayed, at a rate of 10 g per m2, onto the polypropylene and stuck continuously using a permanent adhesive, such as the MV 7OH resin from WAKER.
  • a material was produced comprising a support sheet, namely an aluminum sheet 100 microns thick, associated with a water-retaining material, namely crosslinked starch, according to Example 7.
  • This crosslinked starch is pulverized at the rate of 6 g per m2 of aluminum and bonded continuously using a vinyl acetate.
  • stampable material is carried out for sterilized pies and dry biscuits.
  • a material was produced comprising a support layer consisting of a nonwoven composite at a rate of 31 g per m2 complexed with a tissue paper at a rate of 18 to 25 g per m2 (KB 20 g from METNETT), associated with a material water-repellent, namely a polyacrylonitrile resin.
  • the water-retaining material is sprayed, at a rate of 3 to 30 g per m2 between the two layers and fixed by bonding, due to the water-retaining material itself, previously lightly impregnated with water.
  • a material was produced comprising a support consisting of an LMS cellulosic film (PVE AFNOR 600 g per m2 24 hours) of the order of 33 g per m2 complexed with a nonwoven according to Example 4, this support being associated with a water-retaining material, namely polyacrylonitrile resin according to Example 1.
  • LMS cellulosic film PVE AFNOR 600 g per m2 24 hours
  • the polyacrylonitrile resin is sprayed, at a rate of 3 g per m2 of nonwoven and bonded thereto by lines of glue, with a permanent adhesive such as the MV 7OH resin from WAKER.
  • a material was produced comprising a support according to Example 16, associated with a water-retaining material, according to Example 7.
  • a material comprising a support consisting of a layer of cellulosic film (WSZB) and a layer of 40 g paraffin paper, at a rate of 5 to 8 g per m2, this support being associated with a water-retaining material, namely tissue paper (KB 20 g from the company METNETT), at a rate of 18 to 25 g per m2.
  • WSZB cellulosic film
  • 40 g paraffin paper namely tissue paper (KB 20 g from the company METNETT)
  • This tissue paper is sprayed between the two layers constituting the support and glued to it continuously with wax at the rate of 4.5 g per m2.
  • Such a material has been produced for soft cheeses and morge rind.
  • a material comprising a support consisting of two layers, the first is microperforated or perforated polypropylene, the pores having a diameter of 0.9 mm, the other layer being made of 40 g paper and waxed, at a rate of 5 to 8 g per m2, this support being associated to a water-repellent material, according to Example 18.
  • the water-retaining material is associated with the two layers forming the support by bonding, discontinuously, namely by lines, with wax, at a rate of 4.5 g per m2.
  • a material was produced comprising a support consisting of two layers, one being microperforated polyvinyl chloride, the other layer consisting of 40 g paraffin paper, at a rate of 5 to 8 g per m2, this support being associated with a water-retaining material, according to Example 18.
  • the water-repellent material is associated with the two layers by full-sheet bonding with wax, at the rate of 4.5 g per m2.
EP86402660A 1985-12-03 1986-12-01 Packungsmaterial für feuchtempfindliche Produkte und daraus bestehende Verpackungen. Expired - Lifetime EP0229550B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8517879A FR2590874B1 (fr) 1985-12-03 1985-12-03 Nouvel emballage pour produits sensibles a l'humidite
FR8517879 1985-12-03

Publications (2)

Publication Number Publication Date
EP0229550A1 true EP0229550A1 (de) 1987-07-22
EP0229550B1 EP0229550B1 (de) 1990-06-27

Family

ID=9325390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86402660A Expired - Lifetime EP0229550B1 (de) 1985-12-03 1986-12-01 Packungsmaterial für feuchtempfindliche Produkte und daraus bestehende Verpackungen.

Country Status (6)

Country Link
US (1) US4977031A (de)
EP (1) EP0229550B1 (de)
DE (1) DE3672231D1 (de)
ES (1) ES2016272B3 (de)
FR (1) FR2590874B1 (de)
PT (1) PT83865B (de)

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EP0317041A1 (de) * 1987-11-18 1989-05-24 Showa Denko Kabushiki Kaisha Wasserabsorptionsregulierte Trocknungsvorrichtung
EP0320314A2 (de) * 1987-12-10 1989-06-14 Japan Exlan Company, Ltd. Wasserabsorbierender Bogen für Nahrungsmittel
EP0431504A2 (de) * 1989-12-05 1991-06-12 MEIER + NIEHAUS Flexible Folien und Verpackungen GmbH Trockentuch für Transportbehälter
AU622456B2 (en) * 1988-06-28 1992-04-09 Kimberly-Clark Corporation Humidistat
EP0667306A1 (de) * 1994-02-14 1995-08-16 C.M.B. Flexible Biegsame Verpackungsfolie für feuchtigkeitsempfindliche Produkte, insbesondere für Käse
EP0829344A1 (de) * 1996-08-13 1998-03-18 Alusuisse Technology & Management AG Verpackungsmaterial
EP3296103A1 (de) 2016-09-19 2018-03-21 Amcor Flexibles France SAS Verpackungslaminat

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JPH0734865Y2 (ja) * 1990-02-21 1995-08-09 株式会社クラレ 食品の包装材
US20020092269A1 (en) * 2001-01-16 2002-07-18 Weder Donald E. Wrapper for a floral grouping formed of a sheet of material having a contoured configuration
WO1994003329A1 (en) * 1992-08-06 1994-02-17 Commonwealth Scientific And Industrial Research Organisation A package allowing cooling and preservation of horticultural produce without condensation or desiccation
DE4336629A1 (de) * 1993-10-27 1995-05-04 Coronet Werke Gmbh Verpackungsfolie
US6352152B1 (en) * 1998-12-18 2002-03-05 Smithkline Beecham Corporation Method and package for storing a pressurized container containing a drug
WO2001094105A1 (en) 2000-06-08 2001-12-13 Pechiney Emballage Flexible Europe Laminated thermoformable film structures useful for packaging food products
GB2385579A (en) * 2002-02-21 2003-08-27 John Firth Liquid containment material
ATE334899T1 (de) * 2002-11-08 2006-08-15 Heinz-Dieter Schmidt Verpackung für spargeln
EP1691980A4 (de) * 2003-12-03 2009-05-27 Commw Scient Ind Res Org Verfahren zur herstellung von verpackungsmaterial zum transportieren und lagern von verderblichen gütern
EP1842794B1 (de) * 2006-04-03 2009-06-17 Cryovac, Inc. Käseverpackung
EP2004905A1 (de) * 2006-04-13 2008-12-24 DSMIP Assets B.V. Papiersubstrat mit aufgedampftem triazin sowie verfahren zur herstellung eines laminats mit dem substrat
KR100815059B1 (ko) * 2006-08-11 2008-03-18 주식회사 엘지화학 차수시트
GB0817165D0 (en) 2008-09-19 2008-10-29 Nature Delivered Ltd Food delivery packaging and process
DE202012100002U1 (de) * 2012-01-02 2013-04-05 Mcairlaid's Vliesstoffe Gmbh & Co. Kg Feuchtigkeitsregulierendes Element zur Verwendung in Verpackungen
WO2013102785A1 (en) * 2012-01-06 2013-07-11 Amcor Flexibles France Packaging sheet, packaging and associated manufacturing method
EP2821351B1 (de) * 2013-07-03 2016-05-18 Amcor Flexibles France Verpackungsfolie, Verpackung und Verwendung einer solchen Verpackungsfolie
EP2963177A1 (de) * 2014-07-04 2016-01-06 Danapak Flexibles A/S Verpackungsfolie zur Verpackung von Käse und zugehörige Verpackungs- und Herstellungsverfahren
SE539751C2 (en) 2015-11-09 2017-11-14 Stora Enso Oyj Active moisture control material for packaging and a method for production thereof
TWI768437B (zh) * 2020-08-20 2022-06-21 南亞塑膠工業股份有限公司 保鮮膜結構及其製造方法

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GB696373A (en) * 1950-09-04 1953-08-26 American Viscose Corp Improvements in or relating to the wrapping of meat
FR1433389A (fr) * 1965-01-11 1966-04-01 Perfectionnement à l'emballage des denrées alimentaires
DE2722621A1 (de) * 1976-05-19 1977-12-08 British American Tobacco Co Flexibler beutel

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US4467012A (en) * 1981-08-05 1984-08-21 Grain Processing Corporation Composition for absorbent film and method of preparation
US4489112A (en) * 1983-03-28 1984-12-18 Ex-Cell-O Corporation Laminated paperboard container with absorption resistance means, and blank for constructing same
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FR875277A (fr) * 1940-09-14 1942-09-14 Eisen Und Hu Ttenwerke Ag Werk Procédé et dispositif pour la fabrication de feuilles ou bandes de métal revêtues d'une feuille de matière mince, pour des emballages ou applications analogues
GB696373A (en) * 1950-09-04 1953-08-26 American Viscose Corp Improvements in or relating to the wrapping of meat
FR1433389A (fr) * 1965-01-11 1966-04-01 Perfectionnement à l'emballage des denrées alimentaires
DE2722621A1 (de) * 1976-05-19 1977-12-08 British American Tobacco Co Flexibler beutel

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317041A1 (de) * 1987-11-18 1989-05-24 Showa Denko Kabushiki Kaisha Wasserabsorptionsregulierte Trocknungsvorrichtung
EP0320314A2 (de) * 1987-12-10 1989-06-14 Japan Exlan Company, Ltd. Wasserabsorbierender Bogen für Nahrungsmittel
EP0320314A3 (en) * 1987-12-10 1990-11-22 Japan Exlan Company, Ltd. Water-absorptive sheet for food package
AU622456B2 (en) * 1988-06-28 1992-04-09 Kimberly-Clark Corporation Humidistat
EP0431504A2 (de) * 1989-12-05 1991-06-12 MEIER + NIEHAUS Flexible Folien und Verpackungen GmbH Trockentuch für Transportbehälter
EP0431504A3 (en) * 1989-12-05 1991-09-18 Meier + Niehaus Gmbh Dryer sheet for transport container
EP0667306A1 (de) * 1994-02-14 1995-08-16 C.M.B. Flexible Biegsame Verpackungsfolie für feuchtigkeitsempfindliche Produkte, insbesondere für Käse
FR2716174A1 (fr) * 1994-02-14 1995-08-18 Cmb Flexible Feuille d'emballage souple pour produits sensibles à l'humidité, notamment pour produits fromagers.
EP0829344A1 (de) * 1996-08-13 1998-03-18 Alusuisse Technology & Management AG Verpackungsmaterial
CH690760A5 (de) * 1996-08-13 2001-01-15 Alusuisse Tech & Man Ag Verpackungsmaterial zum Einschlagen von feuchtigkeitssensiblen Produkten, wie Weichkäse.
EP3296103A1 (de) 2016-09-19 2018-03-21 Amcor Flexibles France SAS Verpackungslaminat
WO2018050295A1 (en) 2016-09-19 2018-03-22 Amcor Flexibles France Sas Packaging laminate

Also Published As

Publication number Publication date
PT83865B (pt) 1993-01-29
US4977031A (en) 1990-12-11
FR2590874A1 (fr) 1987-06-05
EP0229550B1 (de) 1990-06-27
PT83865A (fr) 1987-01-01
ES2016272B3 (es) 1990-11-01
DE3672231D1 (de) 1990-08-02
FR2590874B1 (fr) 1988-05-27

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