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EP3821075B1 - Système de conditionnement - Google Patents

Système de conditionnement Download PDF

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Publication number
EP3821075B1
EP3821075B1 EP19740511.1A EP19740511A EP3821075B1 EP 3821075 B1 EP3821075 B1 EP 3821075B1 EP 19740511 A EP19740511 A EP 19740511A EP 3821075 B1 EP3821075 B1 EP 3821075B1
Authority
EP
European Patent Office
Prior art keywords
paper
packaging system
barrier layer
layer
pigment
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.)
Active
Application number
EP19740511.1A
Other languages
German (de)
English (en)
Other versions
EP3821075A1 (fr
EP3821075C0 (fr
Inventor
Dieter Becker
Fulvio CADONAU
Jochen Schlegel
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.)
Mitsubishi HiTec Paper Europe GmbH
Smurfit Kappa Hoya Papier und Karton GmbH
Original Assignee
Mitsubishi HiTec Paper Europe GmbH
Smurfit Kappa Hoya Papier und Karton GmbH
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 Mitsubishi HiTec Paper Europe GmbH, Smurfit Kappa Hoya Papier und Karton GmbH filed Critical Mitsubishi HiTec Paper Europe GmbH
Publication of EP3821075A1 publication Critical patent/EP3821075A1/fr
Application granted granted Critical
Publication of EP3821075B1 publication Critical patent/EP3821075B1/fr
Publication of EP3821075C0 publication Critical patent/EP3821075C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/18—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising waxes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D21H19/826—Paper comprising more than one coating superposed two superposed coatings, the first applied being pigmented and the second applied being non-pigmented
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper

Definitions

  • the present invention relates to a packaging system (1), in particular a food packaging system, comprising or consisting of A) a first paper layer (2) comprising particulate activated carbon, having a front side and a back side opposite the front side, B) one on the front side and/or back side of the Paper layer (2) or a first barrier layer (4) arranged on at least one side of a carrier paper (3), consisting of or comprising a binder and a pigment, and C) a second barrier layer (5) arranged on the first barrier layer (4). of or comprising an acrylate copolymer and a wax.
  • the present invention also relates to the use of a packaging system according to the invention as packaging and a method for producing a packaging system according to the invention. Further aspects of the present invention emerge from the following description and the claims.
  • Groceries are commonly sold in packaging made from paperboard, cardboard and/or paper. High demands are placed on the packaging, especially in the case of fatty foods.
  • fat from the food can penetrate the packaging material in the case of food containing fat. This can cause the packaging material to soften and tear, or cause a Contamination of other items with the grease occurs when they come into contact with the packaging.
  • a wood-free "sandwich paper” is often used to package fatty foods, which has a certain grease resistance due to the greasy grinding of the fibers. However, the grease resistance of these sandwich papers is often not sufficient.
  • a composite packaging material is often used as a grease-resistant alternative to greaseproof paper.
  • a composite packaging material can consist, for example, of a composite material formed from paper and a plastic and/or aluminum foil. If there is no polyethylene (PE) coating, fluorocarbons can be used as water repellent chemicals. For example, paper is coated on one side with polyethylene, often in an energy-intensive extrusion process, or with aluminum foil.
  • PE polyethylene
  • fluorocarbons can be used as water repellent chemicals.
  • paper is coated on one side with polyethylene, often in an energy-intensive extrusion process, or with aluminum foil.
  • These composite packaging materials are characterized by high grease resistance. However, if these composite packaging materials are used for paper recycling, these materials disrupt the recycling process considerably. Due to the film layer, the composite packaging materials cannot be fiberized sufficiently well during the recycling process and so-called wet-strength specks form.
  • the specks are the remains of the plastic or aluminum foil to which paper fibers are still attached. These specks have to be laboriously removed during the recycling process. The necessary separation of the flakes in the pulp preparation process results in a not inconsiderable loss of pulp, which is withdrawn from the process. It is also not possible to compost these composites, since the plastic or aluminum foils used do not biodegrade.
  • WO 2010/042162 A1 discloses a coated paper or paperboard having a multilayer coating to improve oil and grease resistance properties, oxygen barrier properties and water vapor barrier properties.
  • the packaging paper for foodstuffs with a basis weight of between 20 g/m 2 and 40 g/m 2 and with a mass fraction of filler which is less than 20% based on the mass of the uncoated paper.
  • the packaging paper has a coating on at least one side, which comprises a vegetable oil encapsulated in a polymer, talc and a binder.
  • packaging made of paper or cardboard which has at least one barrier layer and can be produced by emulsion polymerisation, the emulsion polymerisation taking place in the presence of at least one carbohydrate compound.
  • the object of the invention is therefore to eliminate the disadvantages outlined above and to meet the packaging requirements outlined above.
  • packaging should be made available that can be fed into paper recycling in its entirety without the packaging having to be processed beforehand (e.g. separating plastic or metal foils) or the recycling process being impaired by the formation of specks or other rejects, such as foils.
  • packaging material should be designed in such a way that it is suitable for contact with food and has low water and water vapor permeability, high fat resistance and a high barrier effect against flavorings.
  • at least part of the packaging to be produced partially or completely from recycled fibers, thereby at least sufficiently reducing the migration of mineral oil substances from the packaging material into another product in a safe and simple manner.
  • first barrier layer consisting of or comprising a binder and a pigment
  • second barrier layer consisting of or comprising an acrylate copolymer and a wax
  • the particulate activated carbon inside the paper layer reduces or prevents the migration of organic materials, such as mineral oil substances, odorous substances or flavorings, through the first paper layer.
  • Mineral oil substances (MOSH and/or MOAH), which are already contained within the paper layer due to the use of recycled fibers, are prevented from to migrate out of the paper layer.
  • the packaging system is also recyclable.
  • a packaging system according to the invention forms a pulp without the formation of specks or other rejects.
  • the packaging system according to the invention can thus be completely fed into paper recycling (pulp recycling).
  • the use of extruded, glued-on foils or metal foils that are vapor-deposited or glued on is preferably completely dispensed with, since the individual layers of the packaging system according to the invention are produced by the application of dispersions.
  • the individual layers of the packaging system according to the invention are not extruded and preferably also do not contain any further extruded, glued or vapor-deposited films.
  • a packaging system according to the invention is preferred, wherein the activated carbon is formed at least partially from a vegetable material, in particular coconut shells.
  • a vegetable material in particular coconut shells.
  • Such an activated carbon has particularly good mineral oil absorption properties.
  • the activated carbon can be provided in granular form.
  • the fineness of grinding can be about 80%, for example about 45 mm.
  • the water content when the activated carbon is packaged can preferably be at most 10%, in particular 7%.
  • the ash content can be a maximum of 3%, preferably 1%.
  • Acidic components of the activated carbon can be a maximum of 3%, preferably 0.8%.
  • the water-soluble fraction can be a maximum of 0.2%, in particular 0.05%.
  • the pH of the activated carbon can range from 5 to 7 and is preferably 6.5.
  • the minimum iodine number can be 900 mg/g, in particular 950 mg/g.
  • the specific surface area (BET) of the activated carbon particles can be around 1000 m 2 /g.
  • an alternative filter material for binding mineral oil substances can be used instead of particulate activated carbon.
  • different filter materials can be used simultaneously, e.g. B. a combination of activated carbon and another filter material.
  • a packaging system according to the invention is preferred in which the activated carbon has an average particle diameter d50 in the range between 1 ⁇ m and 100 ⁇ m.
  • Activated carbon particles can easily penetrate a fiber layer.
  • an undesired escape of the activated carbon from the first paper layer can be prevented.
  • activated carbon can bind mineral oil substances and other organic compounds almost permanently, at least during the usual service life of the packaging system (usually less than two years). It goes without saying that the activated carbon can be, in particular, an activated carbon suitable for food.
  • the activated carbon can be distributed (almost) evenly in the paper layer. In principle, a partial penetration of the paper layer is sufficient. In order to prevent the activated charcoal from escaping from the paper layer, the proportion of activated charcoal in an inner area of the paper layer can preferably be greater than on the outer surfaces.
  • a packaging system according to the invention is preferred, wherein the mass fraction of particulate activated carbon in the first paper layer (2) is 0.1 to 20%, preferably 0.3 to 10%, particularly preferably 0.5 to 5%, more preferably 0. Is 5 to 3%, based on the total mass of the first paper layer.
  • a packaging system according to the invention is preferred, wherein at least one further layer (2.1, 2.2, 6, 6.1) connected to the first paper layer is provided.
  • the at least one further layer is a further paper layer comprising activated carbon (4.1) or the further layer is a protective layer (6, 6.1).
  • a packaging system according to the invention is preferred, wherein the mass fraction of particulate activated carbon in the further paper layer (4.1) is 0.1 to 20%, preferably 0.3 to 10%, particularly preferably 0.5 to 5%, more preferably 0. Is 5 to 3%, based on the total mass of the other paper layer.
  • a packaging system is preferred, wherein two further layers (2.1, 2.2) connected to the first paper layer are provided, and preferably the first paper layer (2) with the two further paper layers (2.1, 2.2) is designed as a single-ply corrugated board.
  • two- or multi-layer corrugated cardboard and/or different corrugated types such as B corrugated, C corrugated, F corrugated, etc., can also be provided.
  • a packaging system according to the invention is preferred, wherein the packaging system has a migration value of MOSH and MOAH of at least less than 2 mg/kg, preferably less than or equal to 0.6 mg/kg, more preferably less than or equal to 0.4 mg/kg.
  • the migration is preferably determined by using modified polyphenylene oxides (MPPO) ( Tenax® ) according to DIN EN 14338:2004-03.
  • MPPO modified polyphenylene oxide
  • MPPO modified polyphenylene oxide
  • Tenax® is regarded as a substitute food test.
  • the second barrier layer of the packaging system according to the invention is covered with modified polyphenylene oxide (MPPO; Tenax® ) and stored in a conventional oven at 40° C. for 10 days. After storage, the polyphenylene oxide (MPPO; Tenax ® ) is extracted with hexane for chromatography.
  • the migration value of MOSH and MOAH in this extract is determined using GC-FID.
  • the wax in the second barrier layer is a saturated hydrocarbon wax.
  • the wax has a melting point above 40.degree. C., preferably above 50.degree. C., particularly preferably above 60.degree.
  • the wax has a melting point of less than 100°C, preferably less than 90°C, particularly preferably less than 80°C.
  • the wax has a melting point in the range from 40°C to 100°C, preferably in the range from 50°C to 90°C, particularly preferably in the range from 60°C to 80°C.
  • the proportion by mass of the wax in the second barrier layer is 5 to 60%, preferably 15 to 50%, particularly preferably 20 to 40%, based on the total mass of the second barrier layer.
  • the wax based on saturated hydrocarbons contains or consists of one, two, three or more than three alkanes selected from the group consisting of heneicosane, docosane, tricosane, tetracosane, pentacosane, hexacosane, heptacosane, octacosane, nonacosane, Triacontane, hentriacontane, dotriacontane, tritriacontane, tetratriacontane, pentatriacontane, hexatriacontane, heptatriacontane, octatriacontane and nonatriacontane, preferably selected from the group consisting of hexacosane, heptacosane, octacosane, nonacostane, preferably selected from the group
  • packaging systems which do not comprise any degraded starch, starch and/or amylopectins in the first paper layer (2), in the carrier paper (3), in the first barrier layer (4) and/or in the second barrier layer (5) and in particular contains no carbohydrates.
  • the acrylate copolymer in the second barrier layer is particularly preferably a copolymer with an average molar mass in the range from 50,000 to 150,000 g/mol, preferably in the range from 80,000 to 130,000 g/mol. particularly preferably in the range from 90,000 to 100,000 g/mol.
  • the mean molar mass is determined with the aid of gel permeation chromatography (GPC) with tetrahydrofuran (THF; tetramethylene oxide; 1,4-epoxybutane; oxacyclopentane) as the solvent, polystyrene as the standard and detection using an RI detector (refractive index detector).
  • GPC gel permeation chromatography
  • the acrylate copolymer in the second barrier layer is particularly preferably a copolymer produced using two, three, four, five, six or all of the monomers selected from the group consisting of methyl acrylate, methyl methacrylate, butyl acrylate, butyl methacrylate, 2-ethylhexyl ester, 2-ethylhexyl methacrylate and styrene.
  • the properties of the resulting acrylate copolymer can be optimized by selecting the monomers used to prepare the acrylate copolymer.
  • Our own investigations have surprisingly shown that an acrylate copolymer made from methyl acrylate, methyl methacrylate, butyl acrylate, butyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate and/or styrene has particularly good barrier properties and is combined with the wax or In particular, it is compatible with the wax based on saturated hydrocarbons.
  • the compatibility of wax and acrylate copolymer is a result of the optimally matching polarities of both substances.
  • methyl acrylate methyl methacrylate, butyl acrylate, butyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate and styrene
  • other monomers may have been used to produce the acrylate copolymer or the copolymer was produced from two, three, four, five, six or all monomers selected from the group consisting of methyl acrylate, methyl methacrylate, butyl acrylate, butyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate and styrene.
  • the acrylate copolymer is particularly preferably a random copolymer.
  • Acrylate copolymers can also be produced as block copolymers, for example.
  • block acrylate copolymers phases are formed in which blocks of the same monomer units agglomerate. This phase formation in block copolymers can be disadvantageous according to the invention.
  • the mass fraction of the acrylate copolymer, which is present in the second barrier layer in addition to the wax is 40 to 95% in the second barrier layer, preferably 50 to 85%, particularly preferably 60 to 80%, based on the total mass of the second barrier layer.
  • the second barrier layer has the property of being heat sealable. This makes it possible for packaging systems according to the invention to be sealed by heat sealing.
  • the mass fraction of the acrylate copolymer in the second barrier layer is 40 to 95% and the mass fraction of the wax in the second barrier layer is 5 to 60%, and it is even more preferred if the mass fraction of the acrylate copolymer in the second barrier layer is 50 to 85% and the mass fraction of the wax in the second barrier layer is 15 is to 50% and it is even more preferred if the mass fraction of the acrylate copolymer in the second barrier layer is 60 to 80% and the mass fraction of the wax in the second barrier layer is 20 to 40%.
  • the second barrier layer consists of acrylate copolymer, wax and a mass fraction of at most 10%, preferably at most 5%, of other substances that are not acrylate copolymer or wax, based on the total mass of the second barrier layer.
  • a packaging system according to the invention is preferred, wherein the mass per unit area of the second barrier layer is in the range from 2.5 to 7.4 g/m 2 , preferably in the range from 2.8 to 6.5 g/m 2 , more preferably in the range from 2.9 to 5.2 g/m 2 .
  • a packaging system according to the invention is preferred, wherein the second barrier layer is a dispersion layer.
  • a dispersion layer is understood as meaning a layer which has been produced from a dispersion, usually an aqueous dispersion. It is therefore preferred according to the invention if the second barrier layer was produced from a dispersion.
  • the individual polymer molecules are not distributed homogeneously, but can be present in separate phases in some cases, with individual phases being able to be present separately from one another. It is spoken of a quasi close order. The presence of phases is a result of the manufacturing process in which the layers are made from a dispersion in which the polymers are already present in disperse phases. After removing the dispersion medium, mostly water, no film is formed.
  • a film is understood to mean a very thin ( ⁇ 1 mm) sheet of metal or plastic which has constant strength along its entire dimension and contains a long-range order of the molecular structure.
  • the constant strength is a result of the polymer molecules that are homogeneously distributed in the film.
  • the main characteristic of plastic films is their ability to be wrapped on or around objects and to conform to their shape.
  • An inventive Packaging system is preferred, wherein the first barrier layer and/or the second barrier layer are not formed as a film.
  • a film is also durable as a standalone layer, i.e. without a base paper, while a dispersion layer is not stable as a standalone layer, i.e. not without a support medium.
  • a packaging system according to the invention is preferred, wherein the pigment in the first barrier layer is an organic pigment, an inorganic pigment or a mixture of organic pigment and inorganic pigment.
  • a packaging system according to the invention is particularly preferred wherein the pigment in the first barrier layer is an inorganic pigment selected from the list consisting of calcined kaolin, kaolin, kaolinite, magnesium silicate hydrate, silica, bentonite, calcium carbonate, aluminum hydroxide, alumina and boehmite.
  • the pigment in the first barrier layer is an inorganic pigment selected from the list consisting of calcined kaolin, kaolin, kaolinite, magnesium silicate hydrate, silica, bentonite, calcium carbonate, aluminum hydroxide, alumina and boehmite.
  • a packaging system according to the invention is particularly preferred, in which the pigment in the first barrier layer is in the form of flakes.
  • the platelet-shaped pigment has a (preferably average) aspect ratio of 5 to 100, preferably 15 to 100, more preferably 20 to 80.
  • the aspect ratio (also “aspect ratio” or “shape factor ”) is the quotient between the diameter and the thickness of the platelet of inorganic pigment before mixing with the other components.
  • An aspect ratio of 15 means that the diameter of the platelet is 15 times greater than the thickness of the platelet.
  • a packaging system according to the invention is preferred in which the mass fraction of the pigment in the first barrier layer is 5 to 60%, preferably 15 to 40%, particularly preferably 20 to 40%, based on the total mass of the first barrier layer.
  • a packaging system according to the invention is preferred, wherein the binder in the first barrier layer is an acrylate polymer or acrylate copolymers.
  • a packaging system according to the invention is preferred, wherein the binder in the first barrier layer is an anionic acrylate polymer or an anionic acrylate copolymer.
  • a packaging system according to the invention is preferred, wherein the binder in the first barrier layer is a copolymer made using one, two, three or all monomers selected from the group consisting of butyl methacrylate, butyl acrylate, methacrylonitrile, acrylonitrile, ⁇ -methylstyrene and styrene.
  • a packaging system according to the invention is preferred wherein the binder in the first barrier layer is a copolymer made using butyl acrylate, acrylonitrile and styrene.
  • a packaging system according to the invention is preferred, wherein the mass per unit area of the first barrier layer is in the range from 1.5 to 6.4 g/m 2 , preferably in the range from 1.8 to 5.5 g/m 2 , more preferably in the range from 1.9 to 4.2 g/m 2 .
  • the first barrier layer consists of an acrylate polymer or acrylate copolymer, a pigment and a mass fraction of at most 5%, preferably at most 2.5% of other substances (eg additives) that are not acrylate polymers or acrylate -Copolymers or pigments, based on the total mass of the second barrier layer.
  • the first barrier layer (4) and the second barrier layer (5) are present as a laminate with the first paper layer (2) and optionally further paper layers or further layers.
  • the first barrier layer (4) is usually applied directly to one side of the paper layer (2) and then coated with the second barrier layer (5).
  • the packaging system comprises a first paper layer (2) and a possibly spatially separate laminate made of a carrier paper (3), a first barrier layer (4) and a second barrier layer (5).
  • first paper layer (2) and a possibly spatially separate laminate made of a carrier paper (3), a first barrier layer (4) and a second barrier layer (5).
  • first and second barrier layer (4, 5) there is no laminate between the first paper layer and the laminate consisting of carrier paper (3), first and second barrier layer (4, 5).
  • the packaging system can consist of a folding carton, which includes or consists of a first paper layer (2) and an inner bag contained in the folding carton, which consists of a carrier paper (3) and a first and second barrier layer (4, 5) arranged thereon.
  • the inner bag can be freely removable (e.g. together with the contents of the bag) or fixed in the carton, for example by (possibly partially) gluing or connecting the inner bag to the carton.
  • the paper layer (2) comprising particulate activated carbon and the backing paper (3). Both layers or paper differ only in the presence of particulate activated carbon.
  • the other components can be identical or can differ from one another.
  • the following statements on the backing paper therefore also apply to the paper layer (2), with the paper layer additionally containing particulate activated carbon.
  • carrier paper is used as a generic term, which also includes carrier cardboard and carrier cardboard.
  • a backing paper is a flat material that essentially consists of fibers of mostly vegetable origin and is formed by dewatering a fiber suspension. The basis weight should not be restricted by the term backing paper.
  • a packaging system according to the invention is preferred in which the carrier paper is paper, cardboard or cardboard.
  • the backing paper is cardboard, it can, for example, be in the form of solid cardboard or corrugated cardboard (e.g. single-wall or double-wall).
  • two- or multi-layer corrugated cardboard and/or different corrugated types such as B corrugated, C corrugated, F corrugated, etc., can also be provided.
  • a packaging system according to the invention is particularly preferred, wherein the carrier paper is a paper with a basis weight in the range from 30 to 150 g/m 2 , a cardboard with a basis weight of more than 150 g/m 2 and less than 225 g/m 2 or is paperboard with a basis weight of more than 225 g/m 2 .
  • a packaging system according to the invention is particularly preferred, wherein the carrier paper is a paper with a basis weight in the range from 25 to 80 g/m 2 , preferably with a basis weight in the range from 30 to 60 g/m 2 is, more preferably having a basis weight in the range of 35 to 50 g/m 2 .
  • a packaging system is very particularly preferred, wherein the carrier paper is a paper with a basis weight in the range from 25 to 80 g/m 2 , preferably with a basis weight in the range from 30 to 60 g/m 2 , particularly preferably with a basis weight is in the range 35 to 50 g/m 2 and the paper layer (2) is board with a basis weight of more than 150 g/m 2 and less than 225 g/m 2 or paperboard with a basis weight of more than is 225 gsm .
  • a packaging system according to the invention is preferred, wherein the paper layer (2) is cardboard or paperboard.
  • the paper layer (2) is cardboard, it can, for example, be in the form of solid cardboard or corrugated cardboard (e.g. single-wall or double-wall).
  • two- or multi-layer corrugated cardboard and/or different corrugated types such as B corrugated, C corrugated, F corrugated, etc., can also be provided.
  • a packaging system according to the invention is preferred in which the carrier paper contains no organic or inorganic pigments.
  • the carrier paper is base paper.
  • a packaging system according to the invention is preferred, wherein the carrier paper contains a cellulose with a Schopper-Riegler degree in the range from 24 to 54°SR, preferably in the range from 29 to 49°SR, particularly preferably in the range from 34 to 44°SR.
  • a packaging system according to the invention is preferred, wherein the carrier paper has a short-fiber pulp with a Schopper-Riegler grade of at least 30°SR and/or a long-fiber pulp with a Schopper-Riegler grade of at least 24°SR.
  • a packaging system according to the invention is preferred, wherein the carrier paper comprises or consists of a cellulose that comprises a short-fiber cellulose and a long-fiber cellulose.
  • a mass ratio between short-fiber pulp and long-fiber pulp in the range from 2:1 to 1:2, preferably in the range from 1.5:1 to 1:1.5, particularly preferably about 1:1 is preferred.
  • the base paper is made from a mixture of short-fiber cellulose and long-fiber cellulose and this mixture is leveled again before the base substrate is manufactured in order to achieve the desired schopper -Riegler degree in the range from 24 to 54°SR, preferably in the range from 29 to 49°SR, particularly preferably in the range from 34 to 44°SR.
  • the short-fiber and long-fiber cellulose used before grinding can have a Schopper-Riegler degree that is outside the preferred range.
  • the Schopper-Riegler grade of the short-fiber pulp and long-fiber pulp used is preferably smaller before the beating than after the beating.
  • the packaging system according to the invention is a packaging system in which the short-fiber pulp consists entirely or partially, preferably at least to a mass fraction of more than 50%, based on the total mass of the short-fiber pulp, of fibers from hardwoods, preferably made of birch fibers, beech fibers or eucalyptus fibers and the long-fiber pulp consists entirely or partially, preferably at least more than 50%, based on the total mass of the long-fiber pulp, of fibers from coniferous trees, preferably pine fibers, spruce fibers or fir fibers.
  • a packaging system according to the invention is preferred, wherein the carrier paper comprises a mass fraction of at least 70% short-fiber pulp, preferably between 70 and 75% short-fiber pulp, based on the total mass of short-fiber pulp and long-fiber pulp.
  • a packaging system according to the invention is preferred in which the backing paper consists of virgin fibers or has a mass fraction of greater than or equal to 50%, preferably greater than or equal to 80%, particularly preferably greater than 95% of fresh fibers, based on the total mass of the fibers in the backing paper.
  • a packaging system according to the invention is preferred, wherein the paper layer consists of recycled fibers or has a mass fraction of greater than or equal to 65%, particularly preferably greater than 85%, of recycled fibers, based on the total mass of the fibers in the paper layer.
  • fresh fibers are understood as meaning a pulp which is obtained directly from the plant starting material (usually wood or grass).
  • Fresh fibers are to be distinguished from recycled fibers that have previously been used at least once in other paper or cardboard products, i.e. that consist of waste paper, waste cardboard and/or waste cardboard.
  • the backing paper, the first barrier layer and the second barrier layer can also contain the additives customarily used in papermaking, such as sizing agents, pigments (in addition to the pigments already described above), optical brighteners, biocides, dispersing agents, release agents, antifoams, retention aids, Fixing agents, flocculants, deaerators, wetting agents, leveling agents, slime control agents or thickeners.
  • the additives are usually used to adjust the properties of the coating compositions used to produce the respective layer (e.g. defoamers or retention aids) or to adjust the properties of the resulting layer (e.g. optical brighteners).
  • a packaging system according to the invention is preferred, in which case the backing paper has further layers on the back.
  • the back can be coated with a starch layer, preferably modified starch, particularly preferably modified corn starch.
  • the properties of the packaging system can be improved by coating the back. For example, it is thus possible to ensure that the packaging system can be printed on the back.
  • a packaging system is preferred according to the invention, the packaging system having a fat permeability with turpentine oil according to Tappi 454 om-10 of at least 1300 s, preferably at least 1500 s, particularly preferably at least 1800 s on the second barrier layer.
  • a packaging system is preferred according to the invention, the packaging system on the second barrier layer being based on Tappi 454 om-10 water resistance greater than 240 seconds, preferably greater than 400 seconds, more preferably greater than 600 seconds.
  • a packaging system is preferred according to the invention, wherein the packaging system has a water vapor permeability according to DIN 53122-1 at a climate of 23 ° C and 85% humidity of less than or equal to 300 g / (m 2 d), preferably less than or equal to 250 g / (m 2 d ), particularly preferably less than or equal to 125 g/(m 2 d).
  • the packaging system according to the invention not only has very high resistance to fat, but also low water vapor permeability. Low water vapor permeability in packaging is desirable for food, since the packaged food does not dry out prematurely and stays fresh for longer.
  • a packaging system is preferred according to the invention, wherein the packaging system has a fat permeability of at least level 5, preferably at least level 3, particularly preferably at least level 1; measured according to method DIN 53116.
  • packaging systems according to the invention can have a KIT value in excess of 12 and thus exhibit excellent bed resistance, which is in the same range as the grease resistance of packaging systems coated with plastic or aluminum foil.
  • a packaging system is preferred according to the invention, the packaging system having a sealing strength at 500 kPa, 150° C. and 1 s of greater than or equal to 3.0 N/15mm, preferably a sealing strength of greater than or equal to 3.5 N/15mm, particularly preferably greater equal to 4.2 N/15mm.
  • a packaging system is preferred according to the invention, wherein the mass per unit area of the packaging system is in the range from 30 to 800 g/m 2 , preferably in the range from 35 to 600 g/m 2 , particularly preferably in the range from 40 to 250 g/m 2 .
  • a packaging system is preferred according to the invention, the packaging system being a paper with a mass per unit area in the range from 30 to 150 g/m 2 , a cardboard with a basis weight of more than 150 g/m 2 and less than 225 g/m 2 or is a paperboard with a basis weight of more than 225 g/m 2 .
  • a packaging system is preferred according to the invention, the packaging system having a sealing strength at 500 kPa, 150° C. and 1 s of greater than or equal to 3.0 N/15mm, preferably a sealing strength of greater than or equal to 3.5 N/15mm, particularly preferably greater equal to 4.2 N/15mm.
  • a packaging system is preferred according to the invention, the packaging system having a migration value of mineral oil substances, in particular MOSH and MOAH, of at least less than 0.6 mg/kg, preferably at least less than 0.3 mg/kg, particularly preferably at least less than 0 .1mg/kg.
  • the migration value is the amount (in mg) that migrates into one kg of food within 10 days at 40 °C.
  • the packaging system has a Bekk smoothness, determined according to ISO 5627, in the range from 100 to 1200 s on the second barrier layer. Contrary to ISO 5627, in this case the Bekk smoothness is not determined on both sides of the packaging system, but only on the second barrier layer of the packaging system.
  • a packaging system is preferred according to the invention, wherein the packaging system contains no fluorine-containing compounds, in particular no fluorinated organic compounds.
  • a further aspect of the present invention relates to the use of a packaging system according to the invention as packaging material, in particular for food (in particular convenience products), electronic products, agricultural products (e.g. seeds, fertilizers), animal feed, animal feed, washing powder, pharmaceutical products, building materials (e.g. cement, gypsum, paste powder), body care products or cosmetics.
  • food in particular convenience products
  • agricultural products e.g. seeds, fertilizers
  • animal feed animal feed
  • washing powder e.g. cement, gypsum, paste powder
  • body care products or cosmetics e.g. cement, gypsum, paste powder
  • Convenience products is a generic term for ready-made products or meals such as canned food, frozen food, microwave complete meals, baking mixes, instant puddings and instant soups. These products are often ready to eat or simply require further processing. Depending on the intended use and condition, finished products only have to be thawed and heated before consumption.
  • it is particularly preferred to use it for packaging dry, moist and/or frozen foods such as baked goods, pre-baked rolls, baking ingredients, fruit, vegetables, roasted and/or deep-fried goods, snack goods, sandwiches, bread, burgers, rice, noodles, frozen foods -French fries, frozen creamy vegetables, breaded schnitzel, meat products, fish products, ready meals, baking mixes, mashed potatoes, instant soups, instant pasta dishes, sausage products, salad containers, salad bowls and/or cheese.
  • dry, moist and/or frozen foods such as baked goods, pre-baked rolls, baking ingredients, fruit, vegetables, roasted and/or deep-fried goods, snack goods, sandwiches, bread, burgers, rice, noodles, frozen foods -French fries, frozen creamy vegetables, breaded schnitzel, meat products, fish products, ready meals, baking mixes, mashed potatoes, instant soups, instant pasta dishes, sausage products, salad containers, salad bowls and/or cheese.
  • a further aspect of the present invention relates to packaging, in particular food packaging, comprising a packaging system according to the invention.
  • a further aspect of the present invention relates to a packaging system produced by a method according to the invention.
  • the coating composition used in a method according to the invention for producing a packaging system reference is made here to the statements on the composition of the individual layers.
  • the coating compositions are designed in such a way that the layers present in a packaging system according to the invention result therefrom.
  • the coating compositions are usually in the form of an aqueous dispersion and contain the constituents or compounds (e.g. monomers or crosslinking agents) present in the individual layers, which react to form the constituents.
  • the coating compositions can also contain the additives commonly used in papermaking, such as biocides, dispersants, release agents, defoamers or thickeners, which are added to adjust the properties of the coating composition and in the from the Coating composition prepared layer usually remain.
  • additives customarily used in papermaking can be used in the customary amounts.
  • the person skilled in the art knows various techniques which are referred to as brushing, for example: blade coating, coating with a film press, cast coating, curtain coating ("curtain coating "), squeegee painting, air knife painting or spray painting. All of these known, aforementioned painting techniques are suitable for applying the coating composition according to the invention to a backing paper, preferably a backing paper which comprises one or more precoats or intermediate coats or which also does not comprise any precoat or intermediate coat. According to the invention, preference is given to curtain coating ("curtain coating”) or application by means of a roller blade (roller blade coating).
  • FIG 1 shows a packaging system 1 according to the invention, which consists of a first paper layer (2) comprising particulate activated carbon, a first barrier layer (4) and a second barrier layer (5).
  • the paper layer (2) has a front side and a back side opposite the front side, and on the front side of the paper layer (2) there is a first barrier layer 4) which comprises or consists of a binder and a pigment.
  • a second barrier layer (5) which comprises or consists of an acrylate copolymer and a wax, is arranged (5) on the first barrier layer (4).
  • the three layers of the packaging system are connected to form a laminate.
  • FIG 2 shows a packaging system 1 according to the invention, which consists of a first paper layer (2) comprising particulate activated carbon, a carrier paper (3), a first barrier layer (4) and a second barrier layer (5).
  • the backing paper (3) has a front side and a back side opposite the front side, and a first barrier layer (4) is arranged on the front side of the backing paper (3). comprises or consists of a binder and a pigment.
  • a second barrier layer (5) which comprises or consists of an acrylate copolymer and a wax, is arranged (5) on the first barrier layer (4).
  • the three layers 3, 4 and 5 are connected to form a laminate which, together with the first paper layer (2), forms the packaging system (1) according to the invention.
  • the first paper layer (2) and the laminated composite of layers 3, 4 and 5 are not connected to one another.
  • the laminate composite of the layers 3, 4 and 5 can be an inner bag, for example, while the first paper layer forms an outer box, for example folding box board.
  • FIG 3 shows a packaging system 1 according to the invention, which consists of a first paper layer (2) comprising particulate activated carbon, a second paper layer (2.1) comprising particulate activated carbon, a third paper layer (2.2) comprising particulate activated carbon, a carrier paper (3), a first barrier layer (4) and a second barrier layer (5).
  • the backing paper (3) has a front side and a back side opposite the front side, and a first barrier layer (4), which comprises or consists of a binder and a pigment, is arranged on the front side of the backing paper (3).
  • a second barrier layer (5) which comprises or consists of an acrylate copolymer and a wax, is arranged (5) on the first barrier layer (4).
  • the three layers 3, 4 and 5 are connected to form a laminate which, together with the first paper layer (2), forms the packaging system (1) according to the invention.
  • the first paper layer (2), the second paper layer (2.1) and the third paper layer (2.2) form a composite which, in the illustrated embodiment, is a laminate composite.
  • figure 4 equals to figure 3 with the exception that the composite of the first paper layer (2), second paper layer (2.1) and third paper layer (2.2) is not a laminate composite, but a single-ply corrugated cardboard, in which the first paper layer (2) is the outer cover , the second layer of paper (2.1) forms the flute, for example B flute, C flute, F flute, etc., and the third paper layer (2.2) forms the inner lining of the corrugated cardboard.
  • FIG 5 shows the interconnected system figure 1 with the difference that an additional protective layer (6) is arranged on the outside of the first paper layer.
  • the protective layer (6) contains no activated carbon.
  • figure 6 shows the interconnected system figure 5 with the difference that an additional layer (6.1) is arranged between the first barrier layer (4) and the first paper layer (2).
  • FIG 7 shows the interconnected system figure 2 with the difference that an additional protective layer (6) is arranged on the outside of the first paper layer.
  • the protective layer (6) contains no activated carbon.
  • FIG 8 shows the interconnected system figure 7 with the difference that an additional protective layer (6.1) is arranged on the inside of the first paper layer.
  • the protective layer (6.1) does not contain any activated carbon.
  • figure 9 shows the interconnected system figure 1 with the difference that on the back of the first paper layer an additional first barrier layer (4.1) consisting of or comprising a binder and a pigment, and on this additional first barrier layer (4.1) an additional second barrier layer (5.1) consisting of or comprising an acrylate copolymer and a wax.
  • first barrier layer 4.1
  • second barrier layer 5.1
  • a folding box board was produced from a paper layer that included particulate activated carbon.
  • the manufacturing process for the production of the paper layer is in EP3175985A1 described.
  • the folding box board has a basis weight of 180 g/m2.
  • a backing paper was also used, which was made from a 1:1 mixture of short-fiber and long-fiber pulp ground at 39°SR on a paper machine to produce a resin-sized paper web with a mass per unit area of 40 g/m 2 became.
  • the paper substrate produced was calendered at a line load of 80 kN/m and a temperature of 80.degree.
  • a first barrier coating which was present as an aqueous dispersion, was applied to the produced carrier paper using an air knife, and this barrier coating was then dried using IR and air drying, resulting in a first barrier layer with a weight per unit area of 3 g/m 2 .
  • the composition of the first barrier coat (excluding water) is given in Table 1.
  • a second barrier coating which was present as an aqueous dispersion, was applied to the first barrier layer produced using a volumetric doctor blade, and this barrier coating was then dried using IR and air drying, resulting in a second barrier layer with a basis weight of 4 g/m 2 .
  • the composition of the second barrier coat (excluding water) is given in Table 1.
  • a bag that fits into the folding carton was made from the laminate produced from carrier paper, first barrier layer and second barrier layer. The inner bag was then placed in the carton box.
  • Table 1 component trade name component mass fraction

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Wrappers (AREA)

Claims (15)

  1. Système d'emballage (1), en particulier système d'emballage alimentaire, comprenant ou se composant de
    A) une première couche de papier (2) comprenant du charbon actif particulaire, présentant un côté avant et un côté arrière opposé au côté avant, dans lequel la couche de papier se compose d'une part en masse supérieure à 50 % de fibres de recyclage, par rapport à la masse entière des fibres dans la couche de papier,
    B) une première couche barrière (4) agencée sur le côté avant et/ou côté arrière de la couche de papier (2) ou sur au moins un côté d'un papier support (3), se composant de ou comprenant un liant et un pigment, et
    C) une seconde couche barrière (5) agencée sur la première couche barrière (4) se composant de ou comprenant un copolymère d'acrylate et une cire.
  2. Système d'emballage selon la revendication 1, dans lequel le charbon actif présente un diamètre de particule médian d50 dans la plage entre 1 µm et 100 µm.
  3. Système d'emballage selon l'une quelconque des revendications précédentes, dans lequel deux autres couches (2.1, 2.2) reliées à la première couche de papier sont prévues, et de préférence la première couche de papier (2) est réalisée avec les deux autres couches de papier (2.1, 2.2) comme carton ondulé monocouche.
  4. Système d'emballage selon l'une quelconque des revendications précédentes, dans lequel la cire dans la seconde couche barrière est une cire d'hydrocarbures saturés.
  5. Système d'emballage selon la revendication 4, dans lequel la cire à base d'hydrocarbures saturés contient un, deux, trois ou plus de trois alcanes ou s'en compose, sélectionnés à partir du groupe composé de hénéicosane, docosane, tricosane, tétracosane, pentacosane, hexacosane, heptacosane, nonacoane, triacontane, hentriacontane, dotriacontane, tritriacontane, tétratriacontane, pentatriacontane, hexatriacontane, heptatriacontane, octatriacontane et nonatriacontane.
  6. Système d'emballage selon l'une quelconque des revendications précédentes, dans lequel la part en masse de la cire dans la seconde couche barrière (5) est comprise entre 5 et 60 %, de préférence 15 et 50 %, de manière particulièrement préférée 20 et 40 %, par rapport à la masse entière de la seconde couche barrière.
  7. Système d'emballage selon l'une quelconque des revendications précédentes, dans lequel le copolymère d'acrylate dans la seconde couche barrière est un copolymère fabriqué en utilisant deux, trois, quatre, cinq, six ou tous les monomères sélectionnés à partir du groupe constitué d'ester méthylique d'acide acrylique, ester méthylique d'acide méthacrylique, ester butylique d'acide acrylique, ester butylique d'acide méthacrylique, acide acrylique-2-éthylhexylester, acide méthacrylique-2-éthylhexylester et styrène.
  8. Système d'emballage selon l'une quelconque des revendications précédentes, dans lequel le pigment dans la première couche barrière est un pigment organique, un pigment inorganique ou un mélange de pigment organique et de pigment inorganique.
  9. Système d'emballage selon l'une quelconque des revendications précédentes, dans lequel le pigment dans la première couche barrière est un pigment inorganique, sélectionné à partir de la liste composée de kaolin calciné, kaolin, kaolinite, hydrate de silicate de magnésium, oxyde de silicium, bentonite, carbonate de calcium, hydroxyde d'aluminium, oxyde d'aluminium et boehmite.
  10. Système d'emballage selon l'une quelconque des revendications précédentes, dans lequel le pigment dans la première couche barrière est réalisé en forme de petite plaque.
  11. Système d'emballage selon l'une quelconque des revendications précédentes, dans lequel la part en masse du pigment dans la première couche barrière est comprise entre 5 et 60 %, de préférence 15 et 40 %, de manière particulièrement préférée 20 et 40 %, par rapport à la masse entière de la première couche barrière.
  12. Système d'emballage selon l'une quelconque des revendications précédentes, dans lequel le liant dans la première couche barrière est un copolymère, fabriqué en utilisant un, deux, trois ou tous les monomères sélectionnés à partir du groupe se composant d'ester butylique d'acide méthacrylique, ester butylique d'acide acrylique, nitrile de méthacrylique, nitrile d'acrylique, α-méthylstyrène et styrène.
  13. Système d'emballage selon l'une quelconque des revendications précédentes, dans lequel le papier support et/ou la première couche de papier est un papier avec une masse surfacique dans la plage de 30 à 150 g/m2, un carton avec une masse surfacique de plus de 150 g/m2 et moins de 225 g/m2 ou un carton avec une masse surfacique de plus de 225 g/m2.
  14. Utilisation d'un système d'emballage selon l'une quelconque des revendications 1 à 13 comme matériau d'emballage, en particulier pour des aliments (en particulier produits de commodité), produits électroniques, produits agricoles (par exemple semence, engrais), fourrage, alimentation animale, poudre de lavage, produits pharmaceutiques, matériaux de construction (par exemple ciment, plâtre, poudre de colle), produits de soins corporels ou cosmétiques.
  15. Procédé de fabrication d'un système d'emballage selon l'une quelconque des revendications 1 à 13, comprenant :
    (i) la fabrication ou la fourniture d'une pulpe de papier comprenant du charbon actif,
    (ii) la génération d'une couche de papier à partir de la pulpe de papier fabriquée ou fournie,
    (iii) la fabrication ou la fourniture optionnelle d'un papier support,
    (iv) la fabrication ou la fourniture d'une première ligne barrière comprenant un liant et un pigment,
    (v) l'application de la première ligne barrière fabriquée ou fournie sur un côté du support de papier ou sur un côté de la couche de papier et le séchage consécutif de la ligne barrière de sorte qu'il résulte une première couche barrière,
    (vi) la fabrication ou la fourniture d'une seconde ligne barrière comprenant un copolymère d'acrylate et une cire
    et
    (vii) l'application de la seconde ligne barrière fabriquée ou fournie sur la première couche barrière fabriquée à l'étape v et le séchage consécutif de la seconde ligne barrière de sorte qu'il résulte une seconde couche barrière.
EP19740511.1A 2018-07-13 2019-07-10 Système de conditionnement Active EP3821075B1 (fr)

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DE102018117069.6A DE102018117069A1 (de) 2018-07-13 2018-07-13 Verpackungssystem
PCT/EP2019/068482 WO2020011824A1 (fr) 2018-07-13 2019-07-10 Système d'emballage

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EP3821075A1 EP3821075A1 (fr) 2021-05-19
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EP3821075C0 EP3821075C0 (fr) 2023-06-07

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DE102019101670A1 (de) * 2019-01-23 2020-07-23 Mitsubishi Hitec Paper Europe Gmbh Barrierepapier mit hohem Zellstofffaseranteil
CN113277223B (zh) * 2021-05-10 2022-06-14 广州市鹏铖纸业有限公司 一种缓冲保护纸板
DE102022112863A1 (de) 2022-05-23 2023-11-23 Constantia Pirk Gmbh & Co. Kg Verbund zur Verpackung von Lebensmitteln oder Pharmazeutika
DE102022210442A1 (de) 2022-09-30 2024-04-04 Koehler Innovation & Technology Gmbh Bio-basierte Komposite als Wasserdampfbarriere auf Papier

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CA1207736A (fr) * 1983-06-17 1986-07-15 James K. Dix Papier renfermant du charbon active
US20020114933A1 (en) * 2000-12-28 2002-08-22 Gould Richard J. Grease masking packaging materials and methods thereof
US7005035B2 (en) * 2002-05-07 2006-02-28 O'neill Kevin J Packaging device and method for absorbing moisture
CA2739987C (fr) * 2008-10-10 2017-01-03 Dow Global Technologies Llc Revetement papier multicouche renfermant un biopolymere et des couches de protection contre la vapeur d'eau
DE102011105761B4 (de) 2011-06-24 2017-12-14 Smurfit Kappa Hoya Papier Und Karton Gmbh Lebensmittelverpackung
WO2013075918A1 (fr) * 2011-11-22 2013-05-30 Unilever N.V. Matériau d'emballage revêtu
ES2658896T3 (es) * 2011-12-06 2018-03-12 Basf Se Envase de papel y cartón con revestimiento de barrera
PL2915919T3 (pl) * 2014-03-03 2018-03-30 Omya International Ag Bariera dla olejów mineralnych
DE102014119572B4 (de) * 2014-12-23 2017-07-06 Delfortgroup Ag Umweltfreundliches Verpackungspapier für Lebensmittel
MX2018008292A (es) * 2016-01-06 2018-09-28 Jindal Films Americas Llc Peliculas de polietileno, de baja densidad, lineal, orientadas, recubiertas.

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EP3821075C0 (fr) 2023-06-07
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PL3821075T3 (pl) 2023-12-04

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