EP3821074A1 - Papier barrière thermosoudable - Google Patents

Papier barrière thermosoudable

Info

Publication number
EP3821074A1
EP3821074A1 EP19739964.5A EP19739964A EP3821074A1 EP 3821074 A1 EP3821074 A1 EP 3821074A1 EP 19739964 A EP19739964 A EP 19739964A EP 3821074 A1 EP3821074 A1 EP 3821074A1
Authority
EP
European Patent Office
Prior art keywords
barrier
barrier layer
paper
heat
sealable
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
EP19739964.5A
Other languages
German (de)
English (en)
Other versions
EP3821074B1 (fr
Inventor
Nadia EL-KARZAZI
Dieter Becker
Konstantinos Kalessios
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
Original Assignee
Mitsubishi HiTec Paper Europe 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 filed Critical Mitsubishi HiTec Paper Europe GmbH
Publication of EP3821074A1 publication Critical patent/EP3821074A1/fr
Application granted granted Critical
Publication of EP3821074B1 publication Critical patent/EP3821074B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper
    • 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
    • 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
    • B65D65/42—Applications of coated or impregnated materials

Definitions

  • the present invention relates to a heat-sealable barrier paper comprising or consisting of a) a backing paper having a front side and a back side opposite the front side, b) a first barrier layer arranged on the front side of the backing paper, consisting of or comprising a binder and a pigment and c) a second barrier layer arranged on the first barrier layer, consisting of or comprising an acrylate copolymer and a wax.
  • the present invention further relates to the use of a barrier paper according to the invention as packaging and a method for producing a barrier paper according to the invention. Further aspects of the present invention result from the following description and the claims.
  • Loose foods such as sausage, cheese or baked goods
  • High demands are placed on the packaging, particularly in the case of fatty foods.
  • fat containing food can penetrate the packaging material with the fat from the food. This can cause the packaging material to soften and tear, or contaminate other objects with the grease when you come into contact with the packaging.
  • a wood-free, greaseproof "sandwich paper" is often used for packaging fatty foods, which has a certain fat resistance due to the greasy grinding of the fibrous materials.
  • the fat resistance of these sandwich papers is often not sufficient.
  • a greasy grind is achieved by wide, widely spaced knives or a basalt stone measurement with a long grinding time.
  • the fibers are not cut, but squeezed. A strongly swelling fiber mucus is created, a slippery, greasy substance that only drains slowly on the paper machine. The paper gains high density but loses opacity. It becomes translucent. When the fiber is shortened slightly, the term “greasy-long” is used. More shortened fibers are referred to as “greasy-short". If the substrate is mainly made of greasy, short fibers, it has only a low resistance to tearing and tearing.
  • a composite packaging material is often used as a more fat-resistant alternative to sandwich paper.
  • a composite packaging material can, for example, consist of a composite material formed from a paper and a plastic and / or aluminum foil. If there is no polyethylene coating (PE), fluorocarbones 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. These composite packaging materials are characterized by their high fat resistance. If these composite packaging materials are used for paper recycling, however, these materials significantly interfere with the recycling process. Due to the film layer, the composite packaging materials cannot be defibrated sufficiently during the recycling process and so-called wet-strength specks form.
  • Specks are remnants of the plastic or aluminum foil to which paper fibers still adhere.
  • the necessary separation of the specks in the fiber processing process results in a not inconsiderable loss of fiber, which is withdrawn from the process.
  • These specks have to be removed during the recycling process. It is also not possible to compost these composites because the plastic or aluminum foils used are not biodegradable.
  • DE 10 2014 119 572 A1 describes packaging paper for foods with a basis weight 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 having.
  • the packaging paper has a coating on at least one side, which comprises a vegetable oil, talcum and a binder encapsulated in a polymer.
  • US 2007/000971 A1 describes a sealable paper which consists of a backing paper which can be printed on its front side and which comprises a water vapor barrier layer which consists of a mixture of acrylic polymers and less than 5% by weight of wax consists. On the back of the backing paper, the paper can have a sealable layer which is made from a natural or artificial latex.
  • a packaging always consists of different components, namely the packaging material and the packaging aid.
  • the goods that are packaged are called packaged goods.
  • Packaging aids are materials that increase the strength of the packaging or make it possible in the first place, such as nails, adhesive tapes, clips and strapping, which ensure that crates and boxes are held together. Packing aids also include labels such as labels on beverage bottles, banderoles on cans and closures of bottles and glasses, labeling agents (e.g. warning labels), desiccants, securing agents (e.g. seals, seals) or upholstery agents (corner cushions, air cushions) etc.). Packaging is the name of the container in which the packaged goods (the goods) are packed.
  • packaging box, box, crate, sack, can, bin, glass, bottle, canister, bag, shrink hood, etc.
  • Materials from which the packaging is formed are referred to as packaging materials.
  • packaging materials include, for example, wood, glass, metal, paper and plastic.
  • Cardboard is a term for packaging made of corrugated cardboard.
  • the object of the present invention is to provide a packaging material which can be fed to paper recycling without the recycling process being impaired by the formation of specks or other rejects, such as foils.
  • the packaging material should be designed so that it is suitable for contact with food and has a low water and water vapor permeability and a high fat resistance.
  • An additional object of the present invention is to design the barrier paper so that it is designed to be heat-sealable. In addition, it is desirable that it can be biodegraded, ie composted.
  • a heat-sealable barrier paper comprising or consisting of a) a backing paper, having a front side and a back side opposite the front side, b) a first barrier layer arranged on the front or back side of the backing paper, consisting of or comprising a binder and a Pigment, and c) a second barrier layer arranged on the first barrier layer, consisting of or comprising an acrylate copolymer and a wax.
  • a first barrier layer consisting of or comprising a binder and a pigment
  • a second barrier layer consisting of or comprising an acrylate copolymer and a wax
  • the barrier paper is recyclable since no foils are used, in particular no plastic or aluminum foils are used.
  • a barrier paper according to the invention forms a pulp without specks or other rejects being formed.
  • the barrier paper according to the invention can thus be completely fed to paper recycling.
  • the combination of acrylic copolymer and wax in the second barrier layer also makes the barrier paper heat-sealable.
  • barrier papers according to the invention the use of extruded, glued-on foils or vapor-deposited or glued-on metal foils is completely dispensed with, since the individual layers of the barrier paper according to the invention are produced by applying dispersions. The individual layers of the barrier paper according to the invention are not extruded.
  • the wax in the second barrier layer is a wax made of saturated hydrocarbons.
  • Our own studies have shown that barrier waxes with a particularly high fat resistance and water resistance can be obtained when using waxes from saturated hydrocarbons.
  • acrylate copolymers are particularly compatible with waxes made from saturated hydrocarbons and therefore a uniform and stable second barrier layer can be formed.
  • the wax having a melting point above 40 ° C., preferably above 50 ° C., particularly preferably above 60 ° C.
  • Barrier papers are preferred according to the invention, the wax having a melting point of less than 100 ° C., preferably less than 90 ° C., particularly preferably less than 80 ° C.
  • Barrier papers are preferred according to the invention, the wax having 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 mass fraction of the wax in the second barrier layer being 5 to 60%, preferably 15 to 50%, is particularly preferably 20 to 40%, based on the total mass of the second barrier layer.
  • barrier papers are preferred, the mass fraction of the wax in the second barrier layer being 5 to 60%, preferably 10 to 60%, particularly preferably 15 to 60%, based on the total mass of the second barrier layer.
  • Barrier papers are preferred according to the invention, the wax based on saturated hydrocarbons containing or consisting of one, two, three or more than three alkanes selected from the group consisting of heneicosan, docosan, tricosan, tetracosan, pentacosan, hexacosan, heptacosan, octacosan, nonacosan, triacontan, hentria-contan, dotriacontan, tritriacontan, tetratriacontan, pentatriacontan, hexatriacontan, preferably octatriacontan, preferably hepatriacontan, Group consisting of hexacosan, heptacosan, octacosan, nonacosan and triacontan.
  • Barrier papers are particularly preferred according to the invention, the wax based on saturated hydrocarbons being
  • 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 up 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 a solvent, polystyrene as standard and detection using an RI detector (refractive index detector).
  • the acrylate copolymer in the second barrier layer is particularly preferably a copolymer produced using 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 properties of the resulting acrylate copolymer can be optimized by selecting the monomers used to produce the acrylate copolymer.
  • Surveys of our own have surprisingly shown that an acrylate copolymer which has been prepared from methyl acrylate, methyl methacrylate, butyl acrylate, butyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate and / or 2-ethylhexyl ester and / or styrene has particularly good barrier properties and with which Wax or in particular is compatible with the wax based on saturated hydrocarbons.
  • methyl acrylate methyl methacrylate, butyl acrylate, butyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate and styrene
  • other monomers may have been used to prepare the acrylate copolymer or the copolymer was prepared from two, three, four, five , six or all of the monomers selected from the group consisting of acrylic acid methyl ester, methacrylic acid methyl ester, acrylic acid butyl ester, methacrylic acid butyl ester, acrylic acid 2-ethylhexyl ester, methacrylic acid 2-ethylhexyl ester and styrene.
  • the acrylate copolymer is particularly preferably a random copolymer.
  • acrylate copolymers can also be produced as block copolymers.
  • 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.
  • a content of acrylate copolymer, which is present in the second barrier layer in addition to the wax, below a mass fraction of 40% leads to barrier papers in which the mechanical resistance of the second barrier layer decreases disproportionately.
  • the mechanical resistance of the second barrier layer is sufficiently high, but it has been shown that the barrier properties to grease, oil and moisture decrease disproportionately.
  • Our own studies have shown that particularly good barrier Repapiere with optimal barrier and mechanical properties can be obtained if the content of acrylate copolymer is 20 to 40% by mass.
  • 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 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 which are not acrylate copolymer or wax, based on the total mass the second barrier layer.
  • a heat-sealable barrier paper according to the invention is preferred, the mass per unit area of the second barrier layer being 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 , particularly preferably in Range is from 2.9 to 5.2 g / m 2 .
  • a heat-sealable barrier paper according to the invention is preferred, the second barrier layer being a dispersion layer.
  • a dispersion layer is understood to mean 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 in a dispersion layer, but can in some cases be present in separate phases, it being possible for individual phases to be present separately from one another.
  • 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 in disperse phases. After removing the dispersion medium, usually water, no film forms.
  • a film is understood to be a very thin ( ⁇ 1 mm) metal or plastic sheet which has constant strength along its entire dimension and includes long-range ordering of the molecular structure.
  • the constant strength is a result of the polymer molecules homogeneously distributed in the film.
  • the main characteristic of plastic films is their ability to be wrapped around objects and to adapt to their shape.
  • a heat-sealable barrier paper according to the invention is preferred, the first barrier layer and / or the second barrier layer not being formed as a film.
  • a film can also be used as a separate layer, i.e. without a backing paper, while a dispersion layer is not a stand-alone layer, i.e. not without a carrier medium.
  • a heat-sealable barrier paper according to the invention is preferred, the pigment in the first barrier layer being an organic pigment, an inorganic pigment or a mixture of organic pigment and inorganic pigment.
  • a heat-sealable barrier paper according to the invention is particularly preferred, the pigment in the first barrier layer being an inorganic pigment selected from the list consisting of calcined kaolin, kaolin, kaolinite, magnesium silicate hydrate, silicon oxide, bentonite, calcium carbonate, aluminum hydroxide, aluminum oxide and boehmite.
  • a heat-sealable barrier paper according to the invention is particularly preferred, the pigment in the first barrier layer being shaped in the form of a plate.
  • the platelet-shaped pigment has a (preferably average) aspect ratio from 5 to 100, preferably from 15 to 100, more preferably from 20 to 80.
  • aspect ratio also “aspect ratio” or “shape factor” “Called) is the quotient between the diameter and the thickness of the plate of the inorganic pigment before mixing with the other components.
  • An aspect ratio of 15 means that the diameter of the plate is 15 times larger than the thickness of the plate.
  • a heat-sealable barrier paper according to the invention is preferred, the mass fraction of the pigment in the first barrier layer being 5 to 60%, preferably 15 to 40%, particularly preferably 20 to 40%, based on the total mass of the first barrier layer.
  • a heat-sealable barrier paper according to the invention is preferred, the binder in the first barrier layer being an acrylate polymer or acrylate copolymer.
  • a heat-sealable barrier paper according to the invention is preferred, the binder in the first barrier layer being a (meth) acrylate polymer or (meth) acrylate copolymer.
  • a heat-sealable barrier paper according to the invention is preferred, the binder in the first barrier layer not being an ethylene-vinyl alcohol copolymer (EVOH) or polyvinyl alcohol (PVOH).
  • a heat-sealable barrier paper according to the invention is preferred, the binder in the first barrier layer being an anionic acrylate polymer or an anionic acrylate copolymer.
  • a heat-sealable barrier paper according to the invention is preferred, the binder in the first barrier layer being an anionic (meth) acrylate polymer or an anionic (meth) acrylate copolymer.
  • a (meth) acrylic polymer is understood to mean a polymer which can be prepared from methacrylic acid, acrylic acid or a mixture of methacrylic acid and acrylic acid as monomers.
  • a (meth) acrylic copolymer is understood to mean a copolymer which can be prepared from methacrylic acid or acrylic acid and at least one other monomer or which can be prepared from a mixture of methacrylic acid and acrylic acid and at least one other monomer.
  • a heat-sealable barrier paper according to the invention is preferred, the binder in the first barrier layer being a copolymer, produced using one, two, three or all monomers selected from the group consisting of butyl methacrylate, butyl acrylate, methacrylonitrile, acrylonitrile, methylstyrene and styrene.
  • a heat-sealable barrier paper according to the invention is preferred, the binder in the first barrier layer being a copolymer, produced using butyl acrylate, acrylonitrile and styrene.
  • a heat-sealable barrier paper according to the invention is preferred, the mass per unit area of the first barrier layer being 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 , particularly preferably in Range is 1.9 to 4.2 g / m 2 .
  • other polymers or additives can also be contained in the second barrier layer.
  • 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 further substances (for example additives) which are not acrylate polymers or Ac - Rylat copolymers or pigments, based on the total mass of the second barrier layer.
  • backing paper is used as a generic term, which also includes backing board and backing 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 becomes. The term backing paper should not restrict the basis weight.
  • a heat-sealable barrier paper according to the invention is preferred, the backing paper being a paper, a cardboard or a cardboard.
  • the carrier paper is cardboard, it can be designed, for example, as solid cardboard and corrugated cardboard (eg single corrugation or double corrugation). It is also possible for the heat-sealable barrier paper according to the invention to be designed as an outer cover, inner cover or intermediate cover of a corrugated cardboard.
  • a heat-sealable barrier paper according to the invention is particularly preferred, the backing paper being a paper with a mass per unit area in the range from 30 to 150 g / m 2 , a cardboard with a mass per unit area of over 150 g / m 2 and less than 225 g / m 2 or a cardboard with a mass per unit area of more than 225 g / m 2 .
  • a heat-sealable barrier paper according to the invention is very particularly preferred, the backing paper being a paper with a mass per unit area in the range from 25 to 80 g / m 2 , preferably with a mass per unit area in the range from 30 to 60 g / m 2 , particularly preferably with a mass per unit area in the range of 35 to 50 g / m 2 .
  • a heat-sealable barrier paper according to the invention is preferred, the backing paper not containing any organic or inorganic pigments.
  • the backing paper is a base paper.
  • a barrier paper according to the invention is preferred, the backing paper containing 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 heat-sealable barrier paper according to the invention is preferred, the backing paper comprising a short-fiber cellulose with a Schopper-Riegler degree of at least 30 ° SR and / or a long-fiber cellulose with a Schopper-Riegler degree of at least 24 ° SR.
  • a barrier paper according to the invention is preferred, the backing paper comprising or consisting of a cellulose which comprises a short fiber cellulose and a long fiber cellulose.
  • the backing paper is produced from a mixture of a short-fiber pulp and a long-fiber pulp and this mixture is leveled again before the carrier substrate is produced in order to achieve the desired chopper -Riegler degrees 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 pulps used before grinding can have a Schopper-Riegler degree that is outside the preferred range.
  • the Schopper-Riegler degree of the short-fiber pulps and long-fiber pulps used is preferably smaller before grinding than after grinding.
  • the barrier paper according to the invention is a barrier paper, the short-fiber pulp being composed wholly or partially, preferably at least to a mass fraction of more than 50%, based on the total mass of the short-fiber pulp, of hardwood fibers consists 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 of coniferous woods, preferably of pine fibers, Spruce fibers or fir fibers exist.
  • a heat-sealable barrier paper according to the invention is preferred, the backing paper comprising a mass fraction of at least 70% short fiber pulp, preferably comprises between 70 and 75% short fiber pulp, based on the total mass of short fiber pulp and long fiber pulp.
  • a heat-sealable barrier paper according to the invention is preferred, wherein the backing paper consists of fresh fibers or 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.
  • fresh fibers are understood to mean a cellulose which is obtained directly from the vegetable starting material (usually wood or grass).
  • Recycled fibers are to be distinguished from fresh fibers, which have previously been used at least once in other paper or cardboard products, i.e. which consist of waste paper, waste cardboard and / or waste cardboard.
  • the backing paper, the first barrier layer and the second barrier layer can additionally also contain the additives commonly used in paper production, such as sizing agents, pigments (in addition to the pigments already described above), optical brighteners, biocides, dispersants, release agents, defoamers, Retention agents, fixatives, flocculants, fabric 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 (for example defoamers or retention agents) or to adjust the properties of the resulting layer (for example optical brighteners).
  • a barrier paper according to the invention is preferred, the backing paper having 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 barrier paper can be improved by a back coating. For example, it is thus possible to ensure that the barrier paper can be printed on the back.
  • a barrier paper according to the invention is preferred, the barrier paper having a migration value of MOSH (mineral oil saturated hydrocarbons) and MOAH (mineral oil aromatic hydrocarbons) 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.
  • MOSH mineral oil saturated hydrocarbons
  • MOAH mineral oil aromatic hydrocarbons
  • the Migration determined 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 replacement test food.
  • the second barrier layer of the packaging system according to the invention is covered with modified polyphenylene oxide (MPPO; Tenax®) and stored at 40 ° C. for 10 days in a conventional oven. After storage, the polyphenylene oxide (MPPO; Tenax®) is extracted with hexane for chromatography. In
  • a barrier paper is preferred according to the invention, the barrier paper on the second barrier layer having a fat permeability with turpentine oil according to Tappi 454 om-10 of at least 1300 s, preferably of at least 1500 s, particularly preferably of at least 1800 s.
  • a barrier paper is preferred according to the invention, the barrier paper on the second barrier layer having a water resistance, determined on the basis of Tappi 454 om-10, of greater than 240 s, preferably greater than 400 s, particularly preferably greater than 600 s.
  • a barrier paper is preferred according to the invention, the barrier paper having a water vapor permeability according to DIN 53122-1 at a climate of 23 ° C. and 85% atmospheric 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 of less than or equal to 125 g / (m 2 d).
  • the barrier paper according to the invention not only has a very high resistance to fat, but also a low water vapor permeability.
  • a low water vapor permeability in packaging is desirable for food, since the packaged food does not dry out prematurely and remains fresh for longer.
  • a barrier paper is preferred according to the invention, the barrier paper having a fat permeability of at least level 5, preferably of at least level 3, particularly preferably of at least level 1; measured according to method DIN 53116.
  • barrier papers according to the invention can have a KIT value of more than 12 and thus have excellent bed resistance. show the same range as the fat resistance of barrier papers coated with plastic or aluminum foil.
  • a barrier paper is preferred according to the invention, the barrier paper having a sealing strength at 500 kPa, 150 ° C. and 1 s of greater than or equal to 3.0 N / 15 mm, preferably having a sealing strength of greater than or equal to 3.5 N / 15 mm, particularly preferably of greater is equal to 4.2 N / 15mm.
  • a barrier paper is preferred according to the invention, the mass per unit area of the barrier paper being 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 barrier paper is preferred according to the invention, the barrier paper being a paper with a mass per unit area in the range from 30 to 150 g / m 2 , a cardboard with a mass per unit area of over 150 g / m 2 and less than 225 g / m 2 or one Cardboard with a mass per unit area of over 225 g / m 2 .
  • a barrier paper is preferred according to the invention, the barrier paper on the second barrier layer having a Bekk smoothness determined according to ISO 5627 in the range from 100 to 1200 s, preferably in the range from 125 to 1000 s, more preferably in the range from 125 to 800 s.
  • the Bekk smoothness is not determined on both sides of the barrier paper, but only on the second barrier layer of the barrier paper.
  • barrier papers with the Bekk smoothing described above have particularly good properties.
  • the paper With a Bekk smoothness of less than 100 s, the paper often has a structure that is too coarse, so that a decrease in the water and / or fat resistance or an increase in the water vapor permeability can often be observed.
  • the low smoothness of the paper has an increase in the surface, so that diffusion processes are preferred.
  • Our own investigations have also shown that with Bekk smoothing of more than 1200 s no significant improvement in the properties can be obtained.
  • a barrier paper that has no further layer on the second barrier layer is preferred according to the invention.
  • a barrier paper is preferred according to the invention, the barrier paper having a tear length according to Hoyer a) of less than 30 km transverse to the fiber direction and / or b) of less than 20 km longitudinally to the fiber direction.
  • barrier paper is preferred according to the invention, the barrier paper containing no fluorine-containing compounds, in particular no fluorinated organic compounds.
  • a heat-sealable barrier paper according to the invention is preferred, the barrier paper not containing any layer which consists exclusively of natural rubber or synthetic rubber (for example styrene-butadiene rubber, butadiene rubber, ethylene-propylene copolymer, polyether amides, epoxy rubber) , Urethane rubber, silicone rubber or polysulfide rubber) contains.
  • natural rubber or synthetic rubber for example styrene-butadiene rubber, butadiene rubber, ethylene-propylene copolymer, polyether amides, epoxy rubber
  • Urethane rubber silicone rubber or polysulfide rubber
  • barrier paper according to the invention relates to the use of a barrier paper according to the invention as packaging material, in particular for foods, electronic products, agricultural products (e.g. seeds, fertilizers), animal feed, washing powder, pharmaceutical products, building materials (e.g. cement, plaster, paste powder) or cosmetics.
  • agricultural products e.g. seeds, fertilizers
  • animal feed e.g. seeds, fertilizers
  • washing powder e.g. water
  • pharmaceutical products e.g. cement, plaster, paste powder
  • building materials e.g. cement, plaster, paste powder
  • a barrier paper according to the invention is particularly preferably used as the inner bag, inlay or inner lining of a packaging box.
  • a suitability is also seen in particular for bulk goods, flowable, lumpy and / or powdered packaged goods.
  • the goods that are packed are called packaged goods.
  • a barrier paper according to the invention as food packaging material, in particular inlay, inner bag, stand-up pouch, tray cover, wrapping paper, underlay paper, cake slice, blister packaging, intermediate and / or release paper.
  • it is particularly preferably used for wrapping, underlaying, interposing, covering and / or separating dry, moist and / or frozen foods, such as baked goods, bread rolls, baking ingredients, fruits, vegetables, fried and / or fried goods, snack goods, sandwiches , Bread, burgers, rice, pasta, frozen fries, frozen cream vegetables, breaded schnitzel, meat products, fish products, ready meals, baking mixes, mashed potatoes, baguette soups, instant pasta dishes, sausages, salad containers, salad bowl and / or cheese.
  • Another aspect of the present invention relates to packaging, in particular food packaging, comprising a barrier paper according to the invention.
  • Another aspect of the present invention relates to the use of a heat-sealable barrier paper according to the invention in packaging, preferably in food packaging, for a) reducing the water vapor permeability according to DIN 53122-1 to a value of less than or equal to 300 g / (m 2 d) and / or b) Reduction of fat permeability with terpetin oil according to Tappi 454 to a value of at least 1300 s.
  • Another aspect of the present invention relates to a method for producing a barrier paper (10), preferably a barrier paper according to the invention, comprising the following steps
  • step iii applying the manufactured or provided second barrier screed to the first barrier layer produced in step iii and then drying the second barrier screed, so that a second barrier layer results.
  • Another aspect of the present invention relates to a heat-sealable barrier paper produced by a method according to the invention.
  • the coating composition used in a method according to the invention for producing a barrier paper reference is made here to the comments on the composition of the individual layers.
  • the coating compositions are designed in such a way that the layers present in a barrier paper according to the invention result from this.
  • 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, for example, biocides, dispersants, mold release agents, defoamers or thickeners, which are added to adjust the properties of the coating composition and which usually remain in the layer produced from the coating composition.
  • additives commonly used in papermaking can be used in the usual amounts.
  • a backing paper was used which was produced from a 1: 1 mixture of short fiber and long fiber pulp with a grinding of 39 ° SR on a paper machine, a paper web provided with resin sizing with a mass per unit area of 40 g / m 2 , The paper substrate produced was subjected to a line load of
  • a first barrier screed which was in the form of an aqueous dispersion, was applied to the backing paper produced and this barrier screed was then dried using IR and air drying, so that a first barrier layer with a basis weight of 3 g / m 2 resulted.
  • the composition of the first barrier screed (without taking water into account) is given in Table 1.
  • a second barrier screed which was in the form of an aqueous dispersion, was applied to the first barrier layer produced and this barrier screed was then dried using IR and air drying, so that a second barrier layer with a basis weight of 4 g / m 2 resulted.
  • the composition of the second barrier screed (without taking water into account) is given in Table 1.
  • the resulting barrier paper which could be heat-sealed at 120 ° C., had a weight per unit area of 47 g / m 2 and was measured for its properties. The results are summarized in Table 2.

Abstract

La présente invention concerne un papier barrière thermosoudable comprenant ou étant constitué a) d'un papier support présentant une face avant et une face arrière opposée à la face avant, b) d'une première couche barrière disposée sur la face avant du papier support et comprenant ou étant constituée d'un liant et d'un pigment et c) d'une deuxième couche barrière disposée sur la première couche barrière et comprenant ou étant constituée d'un copolymère d'acrylate et d'une cire. La présente invention concerne en outre l'utilisation d'un papier barrière selon l'invention comme emballage, ainsi qu'un procédé de fabrication d'un papier barrière selon l'invention.
EP19739964.5A 2018-07-13 2019-07-10 Papier barriere thermoscellable Active EP3821074B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018117071.8A DE102018117071A1 (de) 2018-07-13 2018-07-13 Heißsiegelfähiges Barrierepapier
PCT/EP2019/068492 WO2020011829A1 (fr) 2018-07-13 2019-07-10 Papier barrière thermosoudable

Publications (2)

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EP3821074A1 true EP3821074A1 (fr) 2021-05-19
EP3821074B1 EP3821074B1 (fr) 2023-01-11

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EP19739964.5A Active EP3821074B1 (fr) 2018-07-13 2019-07-10 Papier barriere thermoscellable

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EP (1) EP3821074B1 (fr)
JP (1) JP2021530626A (fr)
DE (1) DE102018117071A1 (fr)
ES (1) ES2940710T3 (fr)
FI (1) FI3821074T3 (fr)
WO (1) WO2020011829A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020122250A (ja) * 2019-01-31 2020-08-13 リンテック株式会社 耐油紙
DE102019114197A1 (de) 2019-05-27 2020-12-03 Mitsubishi Hitec Paper Europe Gmbh Aufzeichnungsmaterial umfassend eine bedruckbare Aufzeichnungsschicht, insbesondere eine bedruckbare Glanz- oder Hochglanzschicht, und eine Barriereschicht sowie Herstellungsverfahren und Verwendungen hierfür
CN113152147A (zh) * 2021-04-22 2021-07-23 叶子包装(美国)有限公司 一种环保型吸管纸及其制备方法、纸吸管加工工艺
DE102022122470A1 (de) * 2022-09-05 2024-03-07 Koehler Innovation & Technology Gmbh Barrierepapier

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1055807A (en) 1964-01-10 1967-01-18 Riegel Paper Corp Heat-sealable,moistureproof coating composition and coated packaging material incorporating same
EP0393451A1 (fr) 1989-04-19 1990-10-24 Neusiedler Aktiengesellschaft Procédé pour le traitement du papier ou du carton pour élever l'étanchéité à la vapeur d'eau et aux arômes, papier ou carton traités par ce procédé ainsi que revêtement de ceux-ci
US5763100A (en) 1993-05-10 1998-06-09 International Paper Company Recyclable acrylic coated paper stocks and related methods of manufacture
JP2814048B2 (ja) 1993-06-18 1998-10-22 株式会社巴川製紙所 包装材料
DE4445193C2 (de) 1993-12-24 1997-01-30 Renker Gmbh & Co Kg Beschichtetes(r) Papier/Karton mit geringer Durchlässigkeit für gasförmige Stoffe und dessen Verwendung
JP3262980B2 (ja) 1995-10-18 2002-03-04 日本製紙株式会社 遮光性及び再生性を有する防湿紙
ES2221028T5 (es) * 1997-07-17 2010-04-09 ALCAN TECHNOLOGY & MANAGEMENT AG Material para envases y tapas.
GB9823499D0 (en) * 1998-10-27 1998-12-23 Proman Chem Ltd Barrier coatings
JP3703691B2 (ja) 1999-07-08 2005-10-05 五洋紙工株式会社 耐水・防湿用樹脂組成物を用いた耐水・防湿紙並びにその製造方法
JP2003154609A (ja) 2001-11-20 2003-05-27 Oji Paper Co Ltd リサイクル可能な透明バリア性積層体
KR100500600B1 (ko) 2002-03-15 2005-07-11 명성산업 주식회사 재생성 방습지 및 그 제조방법
DE10212821A1 (de) * 2002-03-22 2003-10-09 Henkel Kgaa Verfahren zur Herstellung eines Karton- und/oder Papierverbundes für eine Verpackung für schüttfähige hygroskopische Güter sowie Verpackung aus einem derartigen Karton- und/oder Papierverbund
JP4260473B2 (ja) 2002-05-01 2009-04-30 富士フイルム株式会社 電子写真用受像シート、その製造方法及び画像形成方法
US20050208238A1 (en) * 2002-07-08 2005-09-22 Tetra Laval Holdings & Finance S.A. Method of providing a package with a barrier and the package thus obtained
FR2860808B1 (fr) * 2003-10-14 2006-02-17 Ahlstrom Research & Services Papier barriere a la vapeur d'eau
JP4151688B2 (ja) 2005-06-30 2008-09-17 セイコーエプソン株式会社 集積回路装置及び電子機器
KR20100039407A (ko) 2007-07-16 2010-04-15 루즈낵 아메리카 인코포레이티드 왁스 코팅, 코팅된 물품의 제조 방법, 및 그로부터 코팅된 물품
JP4919938B2 (ja) 2007-08-06 2012-04-18 王子製紙株式会社 耐油板紙及び耐油段ボール
BRPI0914078B1 (pt) * 2008-10-10 2018-09-18 Dow Global Technologies Llc papel ou papelão revestido e método para formar um papel ou papelão revestido
DE102010000695A1 (de) 2010-01-05 2011-07-07 Huhtamaki Ronsberg ZN der Huhtamaki Deutschland GmbH & Co. KG, 87671 Verpackungsmaterial mit Lebensmittelfarbe
US20120302660A1 (en) 2010-03-09 2012-11-29 Topchim Nv heat sealable substrate and a process for making the same
JP2013526906A (ja) 2010-03-31 2013-06-27 エンバイロセント，インコーポレイテッド 嗅覚活性物質のための方法、組成物、および物品
EP3052700B1 (fr) 2013-10-01 2017-08-23 Coldenhove Know How B.V. Materiau pour des emballages blister et similaires
EP3054892A4 (fr) 2013-10-11 2017-07-05 Ultradent Products, Inc. Compositions à base de cire, objets fabriqués à partir de celles-ci et procédés de fabrication et d'utilisation
TWI688601B (zh) 2014-07-04 2020-03-21 瑞士商亞克羅瑪智財公司 含氟的斥水性組成物
DE102014119572B4 (de) 2014-12-23 2017-07-06 Delfortgroup Ag Umweltfreundliches Verpackungspapier für Lebensmittel
US9732474B2 (en) 2015-05-29 2017-08-15 International Paper Company Hydrophobic coated paper substrate for polymer emulsion topcoats and method for making same
EP3383641B1 (fr) * 2015-12-02 2021-01-06 Tetra Laval Holdings & Finance S.A. Matériau d'emballage stratifié, contenants d'emballage fabriqués à partir de celui-ci et procédé de fabrication de ce matériau stratifié
EP3437860B1 (fr) 2016-03-28 2021-06-09 Nippon Paper Industries Co., Ltd. Matériau formant barrière constitué de papier
CA2940370A1 (fr) 2016-08-25 2018-02-25 Cascades Sonoco, Inc. Substrat a base de papier couche destine a des contenants et procede de fabrication associe
WO2018073183A1 (fr) * 2016-10-17 2018-04-26 Sig Technology Ag Précurseur de récipient, en particulier destiné à la fabrication d'un récipient alimentaire dimensionnellement stable, comprenant un composite de type feuille, une première et une seconde zone de paroi
EP3532677A4 (fr) 2016-10-31 2020-05-27 Sun Chemical Corporation Compositions de revêtement résistant à la graisse, à l'huile et à l'eau
DE102017131277A1 (de) 2017-12-22 2019-06-27 Mitsubishi Hitec Paper Europe Gmbh Recyclingfähiges Barrierepapier

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Publication number Publication date
JP2021530626A (ja) 2021-11-11
DE102018117071A1 (de) 2020-01-16
WO2020011829A1 (fr) 2020-01-16
ES2940710T3 (es) 2023-05-10
FI3821074T3 (fi) 2023-04-03
EP3821074B1 (fr) 2023-01-11

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