WO2018062466A1 - 紙製バリア材料 - Google Patents
紙製バリア材料 Download PDFInfo
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- WO2018062466A1 WO2018062466A1 PCT/JP2017/035408 JP2017035408W WO2018062466A1 WO 2018062466 A1 WO2018062466 A1 WO 2018062466A1 JP 2017035408 W JP2017035408 W JP 2017035408W WO 2018062466 A1 WO2018062466 A1 WO 2018062466A1
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- 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
- D21H19/80—Paper comprising more than one coating
- D21H19/82—Paper comprising more than one coating superposed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- 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
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than 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
- D21H19/824—Paper comprising more than one coating superposed two superposed coatings, both 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7244—Oxygen barrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7246—Water vapor barrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Definitions
- the present invention relates to a paper barrier material that has both excellent gas barrier properties and water vapor barrier properties, and particularly relates to a paper barrier material that is suitably used for packaging applications such as food packaging materials, containers, cups, and the like.
- gas barrier properties is important for protecting various products to be packaged from deterioration due to gas, for example, oxidation due to oxygen.
- a metal foil or metal vapor deposition film made of metal such as aluminum or the like as a gas barrier layer on a paper substrate (hereinafter also referred to as “base paper”)
- base paper polyvinyl Resin films such as alcohol, ethylene-vinyl alcohol copolymer, polyvinylidene chloride, polyacrylonitrile, etc., or films coated with these resins, and ceramic deposited films deposited with inorganic oxides such as silicon oxide and aluminum oxide, etc.
- Paper packaging materials with other gas barrier properties than those mentioned above include paper gas barrier materials having a gas barrier layer composed of a water-soluble polymer and an inorganic layered compound (Patent Document 1, Patent Document 2), and specific on the coating layer Paper-made gas barrier materials (Patent Documents 2 and 3) provided with a barrier layer made of a vinyl alcohol polymer are disclosed.
- imparting water resistance (particularly, water vapor barrier property) to the paper packaging material is also important for protecting various products to be packaged from deterioration due to water vapor.
- a water vapor barrier property imparted to a paper packaging material a resin film excellent in water vapor barrier property on a paper base material, or a film coated with a resin excellent in water vapor barrier property is extruded and laminated on a paper base material. Or the method of pasting has been mainly used.
- a packaging paper provided with water vapor barrier properties other than these methods, a packaging paper (Patent Document 4) having a moisture-proof layer made of synthetic resin latex, wax and inorganic fine particles is disclosed.
- a packaging material in which both a gas barrier property and a water vapor barrier property are imparted to a paper packaging material a packaging material in which a resin having a gas barrier property and a resin having a water vapor barrier property are laminated on a paper base material is known. .
- packaging materials in which a resin with gas barrier properties and a resin with water vapor barrier properties are laminated or pasted to a paper base (base paper) are limited in the types of resin that can be laminated. There was a problem that I could't.
- the packaging material provided with a gas barrier property and a water vapor barrier property by coating the paper base material (base paper) with a resin having a gas barrier property and a resin having a water vapor barrier property has few restrictions on the types of resins that can be used. Therefore, it becomes possible to cope with various required qualities.
- a packaging material having gas barrier properties of Patent Document 1 or Patent Document 2 good water vapor Although the barrier property was obtained, there was a problem that the gas barrier property could not be obtained. Further, even when the gas barrier layer of Patent Document 1 or Patent Document 2 is provided on the moisture-proof paper having the water vapor barrier layer of Patent Document 4, it is not possible to obtain both sufficient gas barrier properties and water vapor barrier properties. It was.
- the present invention provides a paper barrier material having both excellent gas barrier properties and water vapor barrier properties, and in particular, provides a paper barrier material suitably used for packaging applications such as food packaging materials, containers, cups and the like. With the goal.
- a paper barrier material characterized by satisfying the following conditions (1) to (3): (1) Water vapor permeability at a temperature of 40 ⁇ 0.5 ° C. and a relative humidity of 90 ⁇ 2% is 3 g / m 2 ⁇ day or less, (2) Temperature: 23 ° C., oxygen permeability at 0% relative humidity is 3 ml / m 2 ⁇ day ⁇ atm or less, (3) Temperature: oxygen permeability at 23 ° C. and 85% relative humidity is 3 ml / m 2 ⁇ day ⁇ atm or less.
- [2] further comprising a protective layer on at least one surface of a paper barrier base paper having a water vapor barrier layer and a gas barrier layer containing a water-soluble polymer on a paper substrate.
- [3] The paper barrier material according to [2], wherein the paper barrier base paper has a water vapor barrier layer and a gas barrier layer in this order on a paper base material.
- [4] The paper barrier material according to [2] or [3], wherein the protective layer is a resin layer.
- the paper barrier material according to [4] wherein the resin layer is a resin laminate layer.
- [6] The paper barrier material according to [5], wherein the resin laminate layer is an extruded laminate layer.
- a paper barrier material having both excellent gas barrier properties and water vapor barrier properties, particularly a paper barrier packaging material.
- the present invention provides the following (1) to (3) (1) Water vapor permeability at a temperature of 40 ⁇ 0.5 ° C. and relative humidity of 90 ⁇ 2% is 3 g / m 2 ⁇ day or less (2) Temperature: oxygen permeability at 23 ° C. and relative humidity of 0% is 3 ml / m 2 ⁇ Day ⁇ atm or less (3) Temperature: 23 ° C, oxygen permeability at 85% relative humidity is 3 ml / m 2 ⁇ day ⁇ atm .
- the paper barrier material of the present invention preferably further has a protective layer on at least one surface of the paper barrier base paper having a water vapor barrier layer and a gas barrier layer containing a water-soluble polymer on the paper substrate. More preferably, the protective layer is provided on the surface of the paper barrier base paper on the side having the water vapor barrier layer and the gas barrier layer.
- the paper barrier base paper preferably has a water vapor barrier layer and a gas barrier layer in this order on a paper base material.
- Paper barrier base paper having a water vapor barrier layer and a gas barrier layer containing a water-soluble polymer on a paper substrate is excellent in water vapor barrier properties and gas barrier properties
- a paper barrier base paper having a water vapor barrier layer and a gas barrier layer in this order is excellent in water vapor barrier properties and gas barrier properties
- the reason for having both is presumed as follows.
- a water-soluble polymer is generally used as exemplified below.
- the gas barrier layer containing the water-soluble polymer is likely to be deteriorated due to the moisture in the air or the moisture in the air that permeates through the paper substrate.
- the water vapor barrier layer has an influence on the gas barrier layer due to moisture in the paper substrate (deterioration). Can be effectively suppressed. For this reason, especially the paper barrier base paper which has a water vapor
- the paper base is a sheet made of pulp, filler, and various auxiliaries.
- Pulp includes chemical pulp such as hardwood bleached kraft pulp (LBKP), softwood bleached kraft pulp (NBKP), hardwood unbleached kraft pulp (LUKP), softwood unbleached kraft pulp (NUKP), sulfite pulp, stone grind pulp, thermo Mechanical pulp such as mechanical pulp, wood fiber such as deinked pulp and waste paper pulp, non-wood fiber obtained from kenaf, bamboo, hemp and the like can be used, and can be used by appropriately blending.
- LLKP hardwood bleached kraft pulp
- NKP softwood bleached kraft pulp
- LKP hardwood unbleached kraft pulp
- NUKP softwood unbleached kraft pulp
- sulfite pulp stone grind pulp
- thermo Mechanical pulp such as mechanical pulp, wood fiber such as deinked pulp and waste paper pulp, non-wood fiber obtained from kenaf, bamboo, hemp and the like can be used, and can be used
- filler known fillers such as white carbon, talc, kaolin, clay, heavy calcium carbonate, light calcium carbonate, titanium oxide, zeolite, and synthetic resin filler can be used.
- sulfuric acid bands and various anionic, cationic, nonionic or amphoteric yield improvers, drainage improvers, paper strength enhancers and internal additive sizing agents, etc. Can be used.
- dyes, fluorescent brighteners, pH adjusters, antifoaming agents, pitch control agents, slime control agents and the like can be added as necessary.
- the production method (paper making) of the paper base is not particularly limited, and it is possible to use acid paper making, neutral paper making, alkaline paper making using a known long web former, on-top hybrid former, gap former machine, etc.
- Papermaking can be used to produce a paper substrate.
- the paper substrate may be a single layer or may be composed of two or more layers.
- the drug used include oxidized starch, hydroxyethyl etherified starch, enzyme-modified starch, polyacrylamide, polyvinyl alcohol, surface sizing agent, water-resistant agent, water retention agent, thickener, lubricant, etc. These can be used alone or in admixture of two or more.
- pigments kaolin, clay, engineered kaolin, delaminated clay, heavy calcium carbonate, light calcium carbonate, mica, talc, titanium dioxide, barium sulfate, calcium sulfate, zinc oxide, silicic acid, silicate, colloidal silica, satin
- An inorganic pigment such as white and an organic pigment such as a solid type, a hollow type, or a core-shell type can be used alone or in admixture of two or more.
- the surface treatment method of the paper substrate is not particularly limited, but a known coating device such as a rod metalling size press, a pound type size press, a gate roll coater, a spray coater, a blade coater, or a curtain coater should be used.
- a known coating device such as a rod metalling size press, a pound type size press, a gate roll coater, a spray coater, a blade coater, or a curtain coater should be used.
- Paper bases obtained in this way include fine paper, medium paper, coated paper, glossy paper, kraft paper, glossy kraft paper, bleached kraft paper, glassine paper, paperboard, white paperboard, liners, etc.
- the basis weight of the paper base material can be appropriately selected according to various qualities desired for the paper barrier material, handleability, and the like, but usually about 20 g / m 2 to 500 g / m 2 is preferable.
- paper barrier packaging materials used for packaging applications such as packaging materials for foods, containers, cups, etc.
- those of 25 g / m 2 or more and 400 g / m 2 or less are more preferable, especially for soft packaging materials described later.
- those of 30 g / m 2 or more and 110 g / m 2 or less are more preferable.
- the water vapor barrier resin contained in the water vapor barrier layer includes styrene / butadiene, styrene / acrylic, ethylene / vinyl acetate, paraffin (WAX), butadiene / methyl methacrylate, vinyl acetate / butyl acrylate.
- Synthetic adhesives such as various copolymers, maleic anhydride copolymers, acrylic acid / methyl methacrylate copolymers, etc., or their paraffin (WAX) blended synthetic adhesives alone or in combination. Can be used.
- the styrene / butadiene-based synthetic adhesive is obtained by emulsion polymerization by combining styrene and butadiene as main constituent monomers and various comonomers intended for modification.
- comonomers include methyl methacrylate, acrylonitrile, acrylamide, hydroxyethyl acrylate, unsaturated carboxylic acids such as itaconic acid, maleic acid, and acrylic acid.
- anionic surfactants such as sodium oleate, rosin acid soap, sodium alkylallylsulfonate, sodium dialkylsulfosuccinate and the like can be used alone or in combination with a nonionic surfactant.
- amphoteric or cationic surfactants may be used.
- polyvinyl alcohols such as fully saponified polyvinyl alcohol, partially saponified polyvinyl alcohol, and ethylene copolymerized polyvinyl alcohol, proteins such as casein, soy protein, and synthetic protein, oxidation Starch, cationized starch, urea phosphated starch, starch such as hydroxyethyl etherified starch, cellulose derivatives such as carboxymethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, water-soluble polymers such as polyvinylpyrrolidone, sodium alginate, etc. It can also be used in combination with a water vapor barrier resin.
- a pigment in the water vapor barrier layer from the viewpoint of adhesion between the water vapor barrier layer and the gas barrier layer in the structure having the water vapor barrier layer and the gas barrier layer.
- An inorganic pigment such as white and an organic pigment such as a solid type, a hollow type, or a core-shell type can be used alone or in admixture of two or more.
- an inorganic pigment such as kaolin, mica, and talc having a flat shape is preferable, and kaolin is more preferable from the viewpoints of improving the water vapor barrier property and suppressing the penetration of the gas barrier layer.
- an inorganic pigment having a volume 50% average particle diameter (D50) hereinafter also referred to as “average particle diameter” of 5 ⁇ m or more and an aspect ratio of 10 or more alone or in combination. If the average particle diameter or aspect ratio of the inorganic pigment to be used is smaller than the above range, the number of times the water vapor bypasses the water vapor barrier layer is reduced, and the moving distance is shortened. As a result, the effect of improving the water vapor barrier property is small. May be.
- the water vapor barrier layer containing an inorganic pigment having an average particle diameter of 5 ⁇ m or more and an aspect ratio of 10 or more is further added to the water vapor barrier layer from the viewpoint of improvement of water vapor barrier properties and adhesion to the gas barrier layer.
- the following pigments are preferably contained.
- the void formed by the inorganic pigment having a large average particle size in the water vapor barrier layer is filled with the pigment having a small average particle size. Since it bypasses the pigment, it is presumed that it has a higher water vapor barrier property than a water vapor barrier layer that does not contain a pigment having a different average particle size.
- an inorganic pigment having an average particle diameter of 5 ⁇ m or more and an aspect ratio of 10 or more when used in combination with a pigment having an average particle diameter of 5 ⁇ m or less, an inorganic pigment having an average particle diameter of 5 ⁇ m or more and an aspect ratio of 10 or more is used in combination with a pigment having an average particle diameter of 5 ⁇ m or less, an inorganic pigment having an average particle diameter of 5 ⁇ m or more and an aspect ratio of 10 or more
- the blending ratio of the pigment having an average particle diameter of 5 ⁇ m or less is preferably 50/50 to 99/1 in terms of dry weight.
- the void formed by the inorganic pigment having a large average particle diameter in the water vapor barrier layer cannot be sufficiently filled with the pigment having an average particle diameter of 5 ⁇ m or less, and therefore further improvement of the water vapor barrier property is observed. I can't.
- the pigment having an average particle diameter of 5 ⁇ m or less used in combination with an inorganic pigment having an average particle diameter of 5 ⁇ m or more and an aspect ratio of 10 or more includes kaolin, clay, engineered kaolin, delaminated clay, heavy calcium carbonate Inorganic pigments such as light calcium carbonate, talc, titanium dioxide, barium sulfate, calcium sulfate, zinc oxide, silicic acid, silicate, colloidal silica, and satin white, and organic pigments such as solid type, hollow type, or core-shell type It can be used alone or in combination of two or more. Among these pigments, it is preferable to use heavy calcium carbonate.
- the blending amount of the pigment is within a range of 5 parts by weight or more and 200 parts by weight or less in total of the water vapor barrier resin and the water-soluble polymer with respect to 100 parts by weight of the dry pigment. It is preferably used, and more preferably 10 parts by weight or more and 150 parts by weight or less in total of the water vapor barrier resin and the water-soluble polymer.
- the water vapor barrier layer is usually used as a dispersant, a thickener, a water retention agent, an antifoaming agent, a water resistant agent, a dye, a fluorescent dye, etc.
- Various auxiliary agents can be used.
- a crosslinking agent typified by a polyvalent metal salt can be added to the water vapor barrier layer. Since the crosslinking agent causes a crosslinking reaction with the water vapor barrier resin or the water-soluble polymer contained in the water vapor barrier layer, the number of bonds (crosslinking points) in the water vapor barrier layer increases. That is, the water vapor barrier layer has a dense structure and can exhibit good water vapor barrier properties.
- the type of the crosslinking agent is not particularly limited, and a polyvalent metal salt (copper, zinc, silver) is selected according to the type of the water vapor barrier resin or water-soluble polymer contained in the water vapor barrier layer.
- metals and ions such as carbonate ion, sulfate ion, nitrate ion, phosphate ion, silicate ion, nitrogen oxide, boron oxide
- an amine compound, an amide compound, an aldehyde compound, a hydroxy acid, etc. can be appropriately selected and used.
- a polyvalent metal salt from the viewpoint of expression of a crosslinking effect. More preferably, potassium alum is used.
- the amount of the crosslinking agent can be blended without particular limitation as long as it is within the range of the paint concentration and the paint viscosity that can be applied, but preferably the crosslinking agent is 1 with respect to 100 parts by weight of the pigment. It is not less than 10 parts by weight and more preferably not less than 3 parts by weight and not more than 5 parts by weight. If the amount is less than 1 part by weight, the effect of adding the crosslinking agent may not be sufficiently obtained. On the other hand, when the amount is more than 10 parts by weight, the viscosity of the coating material is remarkably increased and coating may be difficult.
- a crosslinking agent when added to the water vapor barrier layer coating material, it is preferable to dissolve the crosslinking agent in a polar solvent such as ammonia before adding it to the coating material.
- a polar solvent such as ammonia
- a bond is formed between the cross-linking agent and the polar solvent, so that even if added to the paint, a cross-linking reaction with the water vapor barrier resin or water-soluble polymer does not occur immediately. Can be suppressed.
- the polar solvent component volatilizes by drying after coating on the paper substrate, causing a cross-linking reaction with the water vapor barrier resin or water-soluble polymer, and a dense water vapor barrier layer is formed.
- water repellents include paraffinic water repellents mainly composed of alkane compounds, natural oil and fat water repellents derived from animals and plants such as carnauba and lanoin, silicone-containing water repellents containing silicone or silicone compounds, and fluorine compounds. Examples thereof include a fluorine-containing water repellent.
- paraffin type water repellent from a viewpoint of water vapor
- the blending amount of the water repellent is not particularly limited, but the blending amount of the water repellent is repellent with respect to a total of 100 parts by weight of the water vapor barrier resin and the water-soluble polymer in dry weight. It is preferable that the liquid medicine is 1 part by weight or more and 100 parts by weight or less. If the blending amount of the water repellent is less than 1 part by weight, the effect of improving the water vapor barrier property may not be sufficiently obtained. On the other hand, when it exceeds 100 parts by weight, it is difficult to form the gas barrier layer uniformly when the gas barrier layer is provided on the water vapor barrier layer, so that the gas barrier property may be lowered.
- the wet tension on the surface of the water vapor barrier layer is preferably 10 mN / m or more and 60 mN / m or less, and preferably 15 mN / m or more and 50 mN / m from the viewpoint of improving the water vapor barrier property and adhesion to the gas barrier layer. It is more preferable that it is m or less.
- the water-soluble polymer used in the gas barrier layer includes polyvinyl alcohols such as fully saponified polyvinyl alcohol, partially saponified polyvinyl alcohol, and ethylene copolymerized polyvinyl alcohol, and proteins such as casein, soy protein, and synthetic protein. And starches such as oxidized starch, cationized starch, urea phosphate esterified starch, hydroxyethyl etherified starch, cellulose derivatives such as carboxymethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polyvinylpyrrolidone, sodium alginate, etc. it can. Among these, from the viewpoint of gas barrier properties, polyvinyl alcohols and cellulose derivatives are preferable, and polyvinyl alcohols are more preferable.
- inclusion of a pigment in the gas barrier layer is preferable from the viewpoint of improving gas barrier properties.
- pigments used in the gas barrier layer kaolin, clay, engineered kaolin, delaminated clay, heavy calcium carbonate, light calcium carbonate, mica, talc, titanium dioxide, barium sulfate, calcium sulfate, zinc oxide, silicic acid, Inorganic pigments such as silicate, colloidal silica, and satin white, and organic pigments such as a solid type, a hollow type, and a core-shell type can be used alone or in combination of two or more.
- inorganic pigments are preferably used from the viewpoint of gas barrier properties, more preferably inorganic pigments having an average particle diameter of 3 ⁇ m or more and an aspect ratio of 10 or more, and an average particle diameter of 5 ⁇ m or more and an aspect ratio. More preferably, an inorganic pigment having a ratio of 30 or more is used.
- a gas such as oxygen passes around the pigment. For this reason, compared with the gas barrier layer which consists of water-soluble polymer which does not contain a pigment, it has the outstanding gas barrier property in a high-humidity atmosphere.
- the blending ratio of the pigment and the water-soluble polymer is preferably 1/100 to 1000/100 by dry weight. If the ratio of the pigment is out of the above range, the gas barrier property improving effect may be reduced.
- the pigment when the pigment is mixed in the water-soluble polymer, it is preferable to add and mix the slurry of the pigment.
- a crosslinking agent typified by a polyvalent metal salt or the like can be added to the gas barrier layer. Since the crosslinking agent causes a crosslinking reaction with the water-soluble polymer contained in the gas barrier layer, the number of bonds (crosslinking points) in the gas barrier layer increases. That is, the gas barrier layer has a dense structure and can exhibit good gas barrier properties.
- the type of the crosslinking agent is not particularly limited, and a polyvalent metal salt (copper, zinc, silver, iron, potassium, sodium) is selected according to the type of the water-soluble polymer contained in the gas barrier layer.
- An amine compound, an amide compound, an aldehyde compound, a hydroxy acid, and the like can be appropriately selected and used.
- it is preferable to use a polyvalent metal salt from a viewpoint of expression of a crosslinking effect and it is more preferable to use potassium alum.
- the amount of the crosslinking agent can be blended without particular limitation as long as it is within the range of the paint concentration and the paint viscosity that can be applied, but preferably the crosslinking agent is 1 with respect to 100 parts by weight of the pigment. It is not less than 10 parts by weight and more preferably not less than 3 parts by weight and not more than 5 parts by weight. If the amount is less than 1 part by weight, the effect of adding the crosslinking agent may not be sufficiently obtained. On the other hand, when the amount is more than 10 parts by weight, the viscosity of the coating material is remarkably increased and coating may be difficult.
- a surfactant in the gas barrier layer there is no limitation on the ionicity of the surfactant, and any one of anionic surfactant, cationic surfactant, amphoteric surfactant and nonionic surfactant can be used alone or in combination of two or more. Can be used in combination. Specific types include silicone surfactants, fluorine surfactants, alcohol surfactants, acetylene surfactants having an acetylene group, and acetylenic diol surfactants having an acetylene group and two hydroxyl groups.
- alkyl sulfonic acid surfactants having an alkyl group and sulfonic acid examples thereof include ester surfactants and phenol surfactants.
- ester surfactants and phenol surfactants examples thereof include ester surfactants and phenol surfactants.
- acetylenic diol surfactant which has a large effect of improving the leveling property of the paint.
- gas barrier property will improve.
- the surface tension of the gas barrier layer coating is preferably adjusted to 10 mN / m or more and 60 mN / m or less, and is adjusted to 15 mN / m or more and 50 mN / m or less. It is preferable. Moreover, it is preferable from the viewpoint of adhesion between the water vapor barrier layer and the gas barrier layer that the surface tension of the gas barrier layer coating is ⁇ 20 mN / m with respect to the wet tension on the surface of the water vapor barrier layer.
- the gas barrier layer in addition to the above-described water-soluble polymer and pigment, various commonly used assistants such as a dispersant, a thickener, a water retention agent, an antifoaming agent, a water resistance agent, a dye, and a fluorescent dye are used. Agents can be used.
- Coating of water vapor barrier layer and gas barrier layer In this invention, it does not specifically limit about the coating method of a water vapor
- the coating apparatus include a blade coater, a bar coater, a roll coater, an air knife coater, a reverse roll coater, a curtain coater, a spray coater, a size press coater, and a gate roll coater.
- the coating system include water-based coating using a solvent such as water and solvent-based coating using a solvent such as an organic solvent.
- a method for drying the water vapor barrier layer and the gas barrier layer for example, usual methods such as a steam heater, a gas heater, an infrared heater, an electric heater, a hot air heater, a microwave, a cylinder dryer, and the like are used.
- the coating amount of the water vapor barrier layer is preferably 3 g / m 2 or more and 50 g / m 2 or less, more preferably 5 g / m 2 or more and 40 g / m 2 or less in terms of dry weight, 7 g / M 2 or more and 30 g / m 2 or less is more preferable.
- the coating amount of the water vapor barrier layer is less than 3 g / m 2 , it becomes difficult to completely coat the base paper with the coating liquid, and a sufficient water vapor barrier property cannot be obtained. In some cases, sufficient gas barrier properties cannot be obtained.
- the water vapor barrier layer may be a single layer or a multilayer of two or more layers. When the water vapor barrier layer is composed of two or more layers, the total coating amount of all the water vapor barrier layers is preferably within the above range.
- the coating amount of the gas barrier layer is preferably in a 0.2 g / m 2 or more 20 g / m 2 or less by dry weight. If the coating amount of the gas barrier layer is less than 0.2 g / m 2 , it may be difficult to form a uniform gas barrier layer, and sufficient gas barrier properties may not be obtained. On the other hand, when it is more than 20 g / m 2 , the drying load during coating increases.
- the gas barrier layer may be a single layer or a multilayer of two or more layers. When the gas barrier layer is composed of two or more layers, the total coating amount of all the gas barrier layers is preferably within the above range.
- a protective layer is further provided on at least one surface of the paper barrier base paper having a water vapor barrier layer and a gas barrier layer containing a water-soluble polymer on the paper substrate.
- the protective layer prevents the influence (deterioration) of the paper barrier base paper on the water vapor barrier layer and gas barrier layer due to moisture in the air, and gives the paper barrier base paper further water vapor barrier and gas barrier properties, or is oil resistant. , Solvent resistance, heat resistance, wear resistance, impact resistance, light resistance, and the like can be imparted.
- a protective layer is a resin layer, heat sealability can also be provided.
- the protective layer can be provided on both sides of the paper barrier base paper, but it is preferably provided on at least the side having the water vapor barrier layer and the gas barrier layer. Further, having a protective layer on the gas barrier layer of the paper barrier base paper having the water vapor barrier layer and the gas barrier layer in this order on the paper substrate affects the water vapor barrier layer and the gas barrier layer due to moisture in the air. This is preferable for preventing (deterioration).
- the protective layer include a resin layer, a paper layer, and a metal foil. Among these, a resin layer is preferable.
- the resin of the resin layer includes polyester, polyvinyl alcohol, polypropylene, polyethylene, polystyrene, polyethylene terephthalate, polybutylene terephthalate, polymethylpentene, polyvinyl chloride, acrylonitrile / butadiene / styrene, acrylonitrile / styrene, polymethylmethacrylic, polychlorinated.
- Resin derived from fossil resources such as vinylidene, polyamide (nylon), polyacetal, polycarbonate, polylactic acid (PLA), esterified starch, cellulose acetate, polybutylene succinate (PBS), polybutylene succinate adipate (PBSA), biopolyethylene, Biological resins such as biopolyethylene terephthalate and biopolyurethane can be included.
- the bio-derived resin includes a high-molecular material having a number average molecular weight (Mn) of 1,000 or more obtained by chemically or biologically synthesizing a material derived from an organic resource that can be regenerated as a raw material.
- Mn number average molecular weight
- polylactic acid (PLA), esterified starch, cellulose acetate, polybutylene succinate (PBS), polybutylene succinate adipate (PBSA) and the like are biodegradable.
- Any non-biodegradable resin such as resin, polyethylene, polypropylene, polyester, polyethylene terephthalate, polyamide (nylon), biopolyethylene, and the like can be used.
- the biodegradable resin is a resin that is decomposed to the molecular level by the action of microorganisms and eventually circulates into the natural world as carbon dioxide and water.
- the resin layer is preferably a resin laminate layer.
- the resin laminate layer include an extruded laminate layer, and a film bonding layer such as a barrier film and a vapor deposition film.
- the resin laminate layer is an extruded laminate layer
- the above-described various resins are laminated as a resin laminate layer by extrusion lamination on at least one surface of the paper barrier base paper.
- the resin laminate layer is a film bonding layer
- the above-mentioned various resin films are bonded as a resin laminate layer on at least one surface of the paper barrier base paper by a dry lamination method, a sand lamination method, or the like. .
- the resin layer can be provided on both sides of the paper barrier base paper, but it is preferably provided on at least the side having the water vapor barrier layer and the gas barrier layer. Furthermore, it is preferable to have a resin layer on the gas barrier layer of the paper barrier base paper which has a water vapor
- examples of the film used for the film bonding layer include the above-described various resin films.
- films mainly composed of resins such as polyvinyl alcohol, ethylene-vinyl alcohol copolymer, polyvinylidene chloride, polyacrylonitrile, and the above-mentioned various resin films are coated with these resins such as polyvinyl alcohol.
- Film a film obtained by bonding a metal foil made of various metals such as aluminum to the above-mentioned various resin films, an inorganic oxide such as silicon oxide or aluminum oxide, or various metals such as aluminum on the above-mentioned various resin films
- a barrier film such as a vapor deposition film on which an object is vapor-deposited is preferable, and a vapor deposition film is more preferable. Depending on the purpose, these films can be used by laminating one or more layers.
- the paper barrier material of the present invention is a paper barrier material, or laminated with various resins, etc., laminated with various general purpose films, barrier films, aluminum foil, etc. It is possible to make a paper barrier packaging material used for packaging applications such as cups, or a laminate used for industrial materials. Among them, it can be suitably used as a paper barrier packaging material used for packaging materials such as foods, packaging materials such as containers and cups, and can be particularly suitably used as a soft packaging material such as foods. .
- the soft packaging material is a packaging material composed of a material rich in flexibility. Generally, a thin flexible material such as paper, film, aluminum foil, etc. is used alone or bonded. Refers to packaging material.
- the packaging material which maintains a three-dimensional shape by putting the contents, such as a bag, is pointed out.
- the paper barrier material of the present invention is used as a packaging material such as food, particularly as a soft packaging material, it is laminated with a resin having heat sealability to improve the sealing property as a packaging material and oxidize the contents with oxygen. Protects against deterioration due to moisture and humidity, and can extend the storage period.
- a laminate used for industrial materials, etc. it can prevent decay and deterioration by suppressing the intrusion of oxygen and moisture, and flavor barrier properties to prevent the odor of solvent from leaking out. The effect is expected.
- the present invention will be specifically described with reference to examples. However, the present invention is not limited to these examples.
- the part and% in an example show a weight part and weight%, respectively. In addition, it tested based on the evaluation method shown below about the obtained paper barrier material.
- Water vapor permeability (water vapor barrier property): Measured using a moisture permeability meter (Dr. Lyssy, L80-4000) under conditions of a temperature of 40 ⁇ 0.5 ° C. and a relative humidity of 90 ⁇ 2%. did.
- Oxygen permeability (gas barrier property): Using OX-TRAN2 / 21 manufactured by MOCON, under conditions of 23 ° C-0% RH (under drying) and 23 ° C-85% RH (under high humidity) It was measured.
- Example 1 (Preparation of paper substrate) Canadian standard freeness (CSF) 500 ml of hardwood kraft pulp (LBKP) and CSF 530 ml of softwood kraft pulp (NBKP) were blended at a weight ratio of 80/20 to obtain raw pulp.
- CSF Canadian standard freeness
- LKP hardwood kraft pulp
- NKP softwood kraft pulp
- PAM Polyacrylamide
- PAM alkyl ketene dimer
- a water vapor barrier layer coating liquid A1 having a solid content concentration of 45% was obtained.
- gas barrier layer coating solution B1 An aqueous solution of polyvinyl alcohol (manufactured by Kuraray Co., Ltd., PVA117) was prepared so as to have a solid content concentration of 12% to obtain a gas barrier layer coating liquid B1.
- the surface tension of the gas barrier layer coating solution B1 was 35 mN / m.
- the coating solution A1 for the water vapor barrier layer is coated on one side using a blade coater at a coating speed of 300 m / min so as to have a coating weight of 15 g / m 2 by dry weight, and then dried.
- the gas barrier layer coating liquid B1 was coated on one side using a roll coater at a coating speed of 300 m / min so that the coating weight was 5.0 g / m 2 by dry weight to obtain a paper barrier base paper.
- the wetting tension of the surface of the water vapor barrier layer of this paper base paper was 35 mN / m.
- low-density polyethylene manufactured by Nippon Polyethylene Co., Ltd., LC602A was laminated on both sides of the obtained paper base paper by extrusion lamination method to give a paper barrier material.
- Example 2 Preparation of water vapor barrier layer coating liquid A2
- engineered kaolin Imeris, Varisurf HX, average particle size 9.0 ⁇ m, aspect ratio 80-100
- a kaolin slurry having a solid content of 60% was prepared.
- 100 parts (solid content) of a styrene / acrylic copolymer emulsion X-511-374E manufactured by Seiden Chemical Co., Ltd.
- a paraffinic water repellent (manufactured by Maruyoshi Chemical Co., Ltd., MYE-35G, wax-containing polyethylene emulsion) was blended so as to be 100 parts (solid content), and a water vapor barrier layer coating solution A2 having a solid content concentration of 45% was prepared. Obtained.
- a paper barrier material was obtained in the same manner as in Example 1 except that the water vapor barrier layer coating liquid A2 was used instead of the water vapor barrier layer coating liquid A1.
- the wetting tension on the surface of the water vapor barrier layer of the paper barrier base paper was 40 mN / m.
- Example 3 Lamination of low density polyethylene by extrusion laminating to paper barrier base paper, linear low density polyethylene film of 20 ⁇ m thickness by dry laminating method (LL-XMTN, manufactured by Phutamura Chemical Co.) on the gas barrier layer, base paper surface A paper barrier material was obtained in the same manner as in Example 2 except that a biaxially stretched polypropylene film (Futamura Chemical Co., Ltd., FOA) having a thickness of 20 ⁇ m by a dry laminating method was changed to the above. It was.
- LL-XMTN dry laminating method
- Example 4 (Preparation of gas barrier layer coating solution B2) An aqueous solution of polyvinyl alcohol (PVA117, manufactured by Kuraray Co., Ltd.) was prepared so as to have a solid content concentration of 12%. In the obtained aqueous polyvinyl alcohol solution, 100 parts of polyvinyl alcohol (solid content) is blended with 1 part (solid content) of a silicone surfactant (San Nopco, SN wet 125) for gas barrier layer A coating liquid B2 was obtained. In addition, the surface tension of this coating liquid B2 for gas barrier layers was 30 mN / m.
- a paper barrier material was obtained in the same manner as in Example 2 except that the gas barrier layer coating solution B2 was used instead of the gas barrier layer coating solution B1.
- Example 5 A paper barrier was obtained in the same manner as in Example 4 except that a film (aluminum-deposited PET film, manufactured by Nakai Kogyo Co., Ltd., MY-15) was bonded to the gas barrier layer of the obtained paper base paper by dry lamination. Obtained material.
- a film aluminum-deposited PET film, manufactured by Nakai Kogyo Co., Ltd., MY-15
- Example 1 A paper barrier material was obtained in the same manner as in Example 2 except that a gas barrier layer and a water vapor barrier layer were provided in this order on the paper substrate.
- Example 2 A paper barrier material was obtained in the same manner as in Example 2 except that the water vapor barrier layer was not provided.
- Comparative Example 3 A paper barrier material was obtained in the same manner as in Example 2 except that the gas barrier layer was not provided.
- the paper barrier materials of Examples 1 to 5 were excellent in water vapor barrier properties, and had excellent gas barrier properties under both dry and high humidity conditions.
- Example 6 Preparation of water vapor barrier layer coating liquid A3
- engineered kaolin Imeris, Varisurf HX, average particle size 9.0 ⁇ m, aspect ratio 80-100
- a kaolin slurry having a solid content of 55% was prepared.
- 100 parts of pigment (solid content) is blended with 100 parts (solid content) of styrene / butadiene latex (manufactured by Nippon Zeon Co., Ltd., PNT 7868) as a water vapor barrier resin.
- a coating solution A3 for a water vapor barrier layer having a partial concentration of 50% was obtained.
- gas barrier layer coating solution B3 Polyacrylic acid soda was added as a dispersant to engineered kaolin (Imeris, Varisurf HX, average particle size 9.0 ⁇ m, aspect ratio 80-100) (with respect to pigment 0.2%), and dispersed with a variety mixer.
- a kaolin slurry having a solid content of 55% was prepared.
- An aqueous solution of polyvinyl alcohol manufactured by Kuraray Co., Ltd., PVA117
- Example 7 The same as Example 6 except that the film to be bonded was changed from an aluminum-deposited PET film (Nakai Kogyo Co., Ltd., MY-15) to an alumina (ceramic) -deposited PET film (Toppan Printing Co., Ltd., GL-ARH-F). Thus, a paper barrier material was obtained.
- Example 8 A paper barrier material was obtained in the same manner as in Example 6 except that the paper base material was changed from cup base paper (basis weight 270 g / m 2 ) to single gloss kraft paper (basis weight 70 g / m 2 ).
- Example 4 A paper barrier material was obtained in the same manner as in Example 6 except that the aluminum barrier PET film was not bonded and the paper barrier base paper was used as it was.
- the paper barrier materials of Examples 6 to 8 had excellent water vapor barrier properties and gas (oxygen) barrier properties in a high humidity atmosphere.
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Abstract
Description
従来から、紙製の包装材料へのガスバリア性の付与には、紙基材(以下、「原紙」ともいう。)上にガスバリア層として、アルミニウム等の金属からなる金属箔や金属蒸着フィルム、ポリビニルアルコールやエチレン-ビニルアルコール共重合体、ポリ塩化ビニリデン、ポリアクリロニトリル等の樹脂フィルム、あるいはこれらの樹脂をコーティングしたフィルム、さらに酸化珪素や酸化アルミニウム等の無機酸化物を蒸着したセラミック蒸着フィルム等を紙基材(原紙)に押し出しラミネートする、または貼合する方法が主に用いられてきた。
上記以外のガスバリア性を付与した紙製の包装材料としては、水溶性高分子と無機層状化合物からなるガスバリア層を有する紙製のガスバリア材料(特許文献1、特許文献2)、被覆層上に特定のビニルアルコール系重合体からなるバリア層を設けた紙製のガスバリア材料(特許文献2、3)などが開示されている。
紙製の包装材料への水蒸気バリア性の付与として、紙基材上に水蒸気バリア性に優れる樹脂フィルム、あるいはこれらの水蒸気バリア性に優れる樹脂をコーティングしたフィルム等を紙基材に押し出しラミネートする、または貼合する方法が主に用いられてきた。
これらの方法以外の水蒸気バリア性を付与した紙製の包装材料としては、合成樹脂ラテックス、ワックス及び無機微粒子からなる防湿層を有する包装用紙(特許文献4)が開示されている。
〔1〕下記(1)~(3)の条件を満たすことを特徴とする紙製バリア材料:
(1)温度40±0.5℃、相対湿度90±2%における水蒸気透過度が3g/m2・day以下、
(2)温度:23℃、相対湿度0%における酸素透過度が3ml/m2・day・atm以下、
(3)温度:23℃、相対湿度85%における酸素透過度が3ml/m2・day・atm以下。
〔2〕紙基材上に、水蒸気バリア層、水溶性高分子を含有するガスバリア層を有する紙製バリア原紙の少なくとも一方の面上に、さらに保護層を有することを特徴とする〔1〕に記載の紙製バリア材料。
〔3〕前記紙製バリア原紙が、紙基材上に、水蒸気バリア層、ガスバリア層をこの順に有することを特徴とする〔2〕に記載の紙製バリア材料。
〔4〕前記保護層が、樹脂層であることを特徴とする〔2〕または〔3〕に記載の紙製バリア材料。
〔5〕前記樹脂層が、樹脂ラミネート層であることを特徴とする〔4〕に記載の紙製バリア材料。
〔6〕前記樹脂ラミネート層が、押し出しラミネート層であることを特徴とする〔5〕に記載の紙製バリア材料。
〔7〕前記樹脂ラミネート層が、フィルム貼合層であることを特徴とする〔5〕に記載の紙製バリア材料。
〔8〕前記フィルム貼合層が、バリアフィルム貼合層であることを特徴とする〔7〕に記載の紙製バリア材料。
〔9〕前記バリアフィルム貼合層が、蒸着フィルム貼合層であることを特徴とする〔8〕に記載の紙製バリア材料。
〔10〕前記樹脂層が、生物由来樹脂を含むことを特徴とする〔4〕~〔9〕のいずれかに記載の紙製バリア材料。
〔11〕前記生物由来樹脂が、生分解性を有する樹脂であることを特徴とする〔10〕に記載の紙製バリア材料。
〔12〕前記生物由来樹脂が、生分解性を有さない樹脂であることを特徴とする〔10〕に記載の紙製バリア材料。
〔13〕前記樹脂層が、化石資源由来樹脂を含むことを特徴とする〔4〕~〔9〕のいずれかに記載の紙製バリア材料。
〔14〕前記化石資源由来樹脂が、生分解性を有する樹脂であることを特徴とする〔13〕に記載の紙製バリア材料。
〔15〕前記化石資源由来樹脂が、生分解性を有さない樹脂であることを特徴とする〔13〕に記載の紙製バリア材料。
(1)温度40±0.5℃、相対湿度90±2%における水蒸気透過度が3g/m2・day以下
(2)温度:23℃、相対湿度0%における酸素透過度が3ml/m2・day・atm以下
(3)温度:23℃、相対湿度85%における酸素透過度が3ml/m2・day・atm以下
の条件を満たす紙製バリア材料、特に紙製バリア包装材料に関するものである。
ガスバリア層に用いられるガスバリア性を有する樹脂としては下記に例示するように水溶性高分子が一般的であり、紙基材上にガスバリア層、水蒸気バリア層をこの順に設けた場合、紙基材中の水分や紙基材を経由して浸透する空気中の水分などにより、水溶性高分子を含有するガスバリア層が劣化しやすい。一方、紙基材上に、耐水性の良好な樹脂を含有する水蒸気バリア層、ガスバリア層をこの順に有することにより、水蒸気バリア層が紙基材中の水分などによるガスバリア層への影響(劣化)を効果的に抑制することができる。このため、特に水蒸気バリア層、ガスバリア層をこの順に有する紙製バリア原紙は、良好な水蒸気バリア性およびガスバリア性を有する。
本発明において紙基材とは、パルプ、填料、各種助剤からなるシートである。
パルプとしては、広葉樹漂白クラフトパルプ(LBKP)、針葉樹漂白クラフトパルプ(NBKP)、広葉樹未漂白クラフトパルプ(LUKP)、針葉樹未漂白パルプ(NUKP)、サルファイトパルプなどの化学パルプ、ストーングラインドパルプ、サーモメカニカルパルプなどの機械パルプ、脱墨パルプ、古紙パルプなどの木材繊維、ケナフ、竹、麻などから得られた非木材繊維などを用いることができ、適宜配合して用いることが可能である。これらの中でも、原紙中への異物混入が発生し難いこと、使用後の紙容器を古紙原料に供してリサイクル使用する際に経時変色が発生し難いこと、高い白色度を有するため印刷時の面感が良好となり、特に包装材料として使用した場合の使用価値が高くなることなどの理由から、木材繊維の化学パルプ、機械パルプを用いることが好ましく、化学パルプを用いることがより好ましい。
さらに、紙基材の表面を各種薬剤で処理することが可能である。使用される薬剤としては、酸化澱粉、ヒドロキシエチルエーテル化澱粉、酵素変性澱粉、ポリアクリルアミド、ポリビニルアルコール、表面サイズ剤、耐水化剤、保水剤、増粘剤、滑剤などを例示することができ、これらを単独あるいは2種類以上を混合して用いることができる。さらに、これらの各種薬剤と顔料を併用してもよい。顔料としてはカオリン、クレー、エンジニアードカオリン、デラミネーテッドクレー、重質炭酸カルシウム、軽質炭酸カルシウム、マイカ、タルク、二酸化チタン、硫酸バリウム、硫酸カルシウム、酸化亜鉛、珪酸、珪酸塩、コロイダルシリカ、サチンホワイトなどの無機顔料および密実型、中空型、またはコアーシェル型などの有機顔料などを単独または2種類以上混合して使用することができる。
この様にして得られる紙基材としては、上質紙、中質紙、塗工紙、片艶紙、クラフト紙、片艶クラフト紙、晒クラフト紙、グラシン紙、板紙、白板紙、ライナーなどの各種公知のものが例示可能である。
また、紙基材の坪量は、紙製バリア材料に所望される各種品質や取り扱い性等により適宜選択可能であるが、通常は20g/m2以上500g/m2以下程度のものが好ましい。食品などの包装材、容器、カップなど、包装用途に使用する紙製バリア包装材料の場合は、25g/m2以上400g/m2以下のものがより好ましく、特に後述する軟包装材用途に使用する紙製バリア包装材料の場合は、30g/m2以上110g/m2以下のものがより好ましい。
本発明において、水蒸気バリア層に含有させる水蒸気バリア性樹脂としては、スチレン・ブタジエン系、スチレン・アクリル系、エチレン・酢酸ビニル系、パラフィン(WAX)系、ブタジエン・メチルメタクリレート系、酢酸ビニル・ブチルアクリレート系等の各種共重合体、無水マレイン酸共重合体、アクリル酸・メチルメタクリレート系共重合体等の合成接着剤、またはそれらのパラフィン(WAX)配合合成接着剤等を単独あるいは2種類以上混合して使用することができる。これらの中では、水蒸気バリア性の点からスチレン・ブタジエン系合成接着剤を使用することが好ましい。
本発明においてスチレン・ブタジエン系合成接着剤とは、スチレンとブタジエンを主構成モノマーとし、これに変性を目的とする各種のコモノマーを組み合わせ、乳化重合したものである。コモノマーの例として、メチルメタクリルレート、アクリロニトリル、アクリルアミド、ヒドロキシエチルアクリレートや、イタコン酸、マレイン酸、アクリル酸などの不飽和カルボン酸などが挙げられる。また、乳化剤としては、オレイン酸ナトリウム、ロジン酸石鹸、アルキルアリルスルホン酸ナトリウム、ジアルキルスルホコハク酸ナトリウムなどのアニオン性界面活性剤を単独、またはノニオン性界面活性剤と組み合わせて用いることができる。目的によっては、両性またはカチオン性界面活性剤を用いても良い。
顔料としてはカオリン、クレー、エンジニアードカオリン、デラミネーテッドクレー、重質炭酸カルシウム、軽質炭酸カルシウム、マイカ、タルク、二酸化チタン、硫酸バリウム、硫酸カルシウム、酸化亜鉛、珪酸、珪酸塩、コロイダルシリカ、サチンホワイトなどの無機顔料および密実型、中空型、またはコアーシェル型などの有機顔料などを単独または2種類以上混合して使用することができる。
これらの顔料の中でも、水蒸気バリア性の向上と、ガスバリア層の浸透抑制の両方の観点から、形状が扁平なカオリン、マイカ、タルクなどの無機顔料が好ましく、カオリンがより好ましい。また、体積50%平均粒子径(D50)(以下、「平均粒子径」とも言う。)が5μm以上且つアスペクト比が10以上の無機顔料を単独または2種類以上混合して使用することが好ましい。使用する無機顔料の平均粒子径またはアスペクト比が上記範囲より小さいと、水蒸気バリア層中を水蒸気が迂回する回数が減少し、移動する距離が短くなるため、結果として水蒸気バリア性の改善効果が小さくなることがある。
本発明において、平均粒子径が5μm以上且つアスペクト比が10以上の無機顔料と、平均粒子径が5μm以下の顔料を併用する場合、平均粒子径が5μm以上且つアスペクト比が10以上の無機顔料と、平均粒子径が5μm以下の顔料の配合比率は、乾燥重量で、50/50~99/1であることが好ましい。平均粒子径が5μm以上且つアスペクト比が10以上の無機顔料の配合比率が上記範囲より少ないと、水蒸気が水蒸気バリア層中を迂回する回数が減少し、移動する距離が短くなるため、水蒸気バリア性の改善効果が小さくなることがある。一方、上記範囲より多いと、水蒸気バリア層中の大きな平均粒子径の無機顔料が形成する空隙を平均粒子径が5μm以下の顔料で十分に埋めることができないため、水蒸気バリア性のさらなる向上は見られない。
また、水蒸気バリア層には、上記した水蒸気バリア性樹脂、水溶性高分子、顔料の他、分散剤、増粘剤、保水剤、消泡剤、耐水化剤、染料、蛍光染料等の通常使用される各種助剤を使用することができる。
本発明において、架橋剤の種類としては特に限定されるものではなく、水蒸気バリア層に含有される水蒸気バリア性樹脂や水溶性高分子の種類に合わせて、多価金属塩(銅、亜鉛、銀、鉄、カリウム、ナトリウム、ジルコニウム、アルミニウム、カルシウム、バリウム、マグネシウム、チタンなどの多価金属と、炭酸イオン、硫酸イオン、硝酸イオン、燐酸イオン、珪酸イオン、窒素酸化物、ホウ素酸化物などのイオン性物質が結合した化合物)、アミン化合物、アミド化合物、アルデヒド化合物、ヒドロキシ酸など適宜選択して使用することが可能である。
水蒸気バリア性に優れた効果を発現するスチレン・ブタジエン系、スチレン・アクリル系などのスチレン系の水蒸気バリア性樹脂を用いた場合、架橋効果発現の観点から、多価金属塩を使用することが好ましく、カリウムミョウバンを使用することがより好ましい。
架橋剤の配合量については、塗工可能な塗料濃度や塗料粘度の範囲内であれば特に限定されることなく配合することができるが、好ましくは顔料100重量部に対して、架橋剤が1重量部以上10重量部以下であり、より好ましくは3重量部以上5重量部以下である。1重量部未満であると架橋剤の添加効果が十分に得られないことがある。また、10重量部より多いと塗料の粘度上昇が著しくなり、塗工が困難となることがある。
また、本発明において、水蒸気バリア性の向上、及びガスバリア層との密着性から、水蒸気バリア層表面の濡れ張力としては10mN/m以上60mN/m以下であることが好ましく、15mN/m以上50mN/m以下であることがより好ましい。
本発明において、ガスバリア層に使用される水溶性高分子としては、完全ケン化ポリビニルアルコール、部分ケン化ポリビニルアルコール、エチレン共重合ポリビニルアルコールなどのポリビニルアルコール類、カゼイン、大豆タンパク、合成タンパクなどのタンパク質類、酸化澱粉、カチオン化澱粉、尿素リン酸エステル化澱粉、ヒドロキシエチルエーテル化澱粉などの澱粉類、カルボキシメチルセルロース、ヒドロキシメチルセルロース、ヒドロキシエチルセルロース等のセルロース誘導体、ポリビニルピロリドン、アルギン酸ナトリウムなどを例示することができる。これらの中では、ガスバリア性の点から、ポリビニルアルコール類、セルロース誘導体が好ましく、ポリビニルアルコール類がさらに好ましい。
これらの中では、ガスバリア性の点から無機顔料を使用することが好ましく、平均粒子径が3μm以上且つアスペクト比が10以上の無機顔料を使用することがより好ましく、平均粒子径が5μm以上且つアスペクト比が30以上の無機顔料を使用することがさらに好ましい。
ガスバリア層に顔料を含有させた場合、酸素などのガスは顔料を迂回して通過する。このため、顔料を含有していない水溶性高分子からなるガスバリア層と比較して高湿度雰囲気下における優れたガスバリア性を有する。
本発明において、ガスバリア層に顔料を含有させる場合、顔料と水溶性高分子の配合比率は、乾燥重量で、1/100~1000/100であることが好ましい。顔料の比率が上記範囲外であると、ガスバリア性の改善効果が小さくなることがある。
なお、本発明において、顔料を水溶性高分子中に配合する際に、顔料がスラリー化したものを添加し混合することが好ましい。
本発明において、架橋剤の種類としては特に限定されるものではなく、ガスバリア層に含有される水溶性高分子の種類に合わせて、多価金属塩(銅、亜鉛、銀、鉄、カリウム、ナトリウム、ジルコニウム、アルミニウム、カルシウム、バリウム、マグネシウム、チタンなどの多価金属と、炭酸イオン、硫酸イオン、硝酸イオン、燐酸イオン、珪酸イオン、窒素酸化物、ホウ素酸化物などのイオン性物質が結合した化合物)、アミン化合物、アミド化合物、アルデヒド化合物、ヒドロキシ酸など適宜選択して使用することが可能である。なお、架橋効果発現の観点から、多価金属塩を使用することが好ましく、カリウムミョウバンを使用することがより好ましい。
架橋剤の配合量については、塗工可能な塗料濃度や塗料粘度の範囲内であれば特に限定されることなく配合することができるが、好ましくは顔料100重量部に対して、架橋剤が1重量部以上10重量部以下であり、より好ましくは3重量部以上5重量部以下である。1重量部未満であると架橋剤の添加効果が十分に得られないことがある。また、10重量部より多いと塗料の粘度上昇が著しくなり、塗工が困難となることがある。
本発明において、水蒸気バリア層との密着性の観点から、ガスバリア層用塗料の表面張力を、10mN/m以上60mN/m以下に調整することが好ましく、15mN/m以上50mN/m以下に調整することが好ましい。
また、水蒸気バリア層表面の濡れ張力に対して、ガスバリア層用塗料の表面張力を±20mN/mとすることが、水蒸気バリア層とガスバリア層との密着性の観点から好ましい。
本発明において、水蒸気バリア層、ガスバリア層の塗工方法については特に限定されるものではなく、公知の塗工装置及び塗工系で塗工することができる。例えば、塗工装置としてはブレードコーター、バーコーター、ロールコーター、エアナイフコーター、リバースロールコーター、カーテンコーター、スプレーコーター、サイズプレスコーター、ゲートロールコーターなどが挙げられる。また、塗工系としては、水等の溶媒を使用した水系塗工、有機溶剤等の溶媒を使用した溶剤系塗工などが挙げられる。
水蒸気バリア層、ガスバリア層を乾燥させる手法としては、例えば、蒸気加熱ヒーター、ガスヒーター、赤外線ヒーター、電気ヒーター、熱風加熱ヒーター、マイクロウェーブ、シリンダードライヤー等の通常の方法が用いられる。
なお、本発明において、水蒸気バリア層は1層であってもよく、2層以上の多層で構成してもよい。水蒸気バリア層を2層以上の多層で構成する場合は、全ての水蒸気バリア層を合計した塗工量を上記範囲とすることが好ましい。
なお、本発明において、ガスバリア層は1層であってもよく、2層以上の多層で構成してもよい。ガスバリア層を2層以上の多層で構成する場合は、全てのガスバリア層を合計した塗工量を上記範囲とすることが好ましい。
本発明において、紙基材上に、水蒸気バリア層、水溶性高分子を含有するガスバリア層を有する紙製バリア原紙の少なくとも一方の面上に、さらに保護層を有することが好ましい。保護層は、空気中の水分などによる紙製バリア原紙の水蒸気バリア層、ガスバリア層への影響(劣化)を防ぐと共に、紙製バリア原紙に更なる水蒸気バリア性、ガスバリア性を付与する、あるいは耐油性、耐溶剤性、耐熱性、耐摩耗性、耐衝撃性、耐光性などを付与することができる。また、保護層が樹脂層である場合は、ヒートシール性を付与することもできる。
保護層は、紙製バリア原紙の両面に設けることもできるが、少なくとも水蒸気バリア層およびガスバリア層を有する側の面上に有することが好ましい。さらに、紙基材上に、水蒸気バリア層、ガスバリア層をこの順に有する紙製バリア原紙のガスバリア層上に、保護層を有することが、空気中の水分などによる水蒸気バリア層およびガスバリア層への影響(劣化)を防ぐために好ましい。
保護層としては、樹脂層、紙層、金属箔等が挙げられ、これらの中で樹脂層が好ましい。
樹脂層の樹脂としては、ポリエステル、ポリビニルアルコール、ポリプロピレン、ポリエチレン、ポリスチレン、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリメチルペンテン、ポリ塩化ビニル、アクリロニトリル・ブタジエン・スチレン、アクリロニトリル・スチレン、ポリメチルメタアクリル、ポリ塩化ビニリデン、ポリアミド(ナイロン)、ポリアセタール、ポリカーボネート等の化石資源由来樹脂、ポリ乳酸(PLA)、エステル化澱粉、酢酸セルロース、ポリブチレンサクシネート(PBS)、ポリブチレンサクシネートアジペート(PBSA)、バイオポリエチレン、バイオポリエチレンテレフタレート、バイオポリウレタン等の生物由来樹脂を含むことができる。
なお、生物由来樹脂とは、原料として再生可能な有機資源由来の物質を含み,化学的または生物学的に合成することにより得られる、数平均分子量(Mn)1,000以上の高分子材料をいう。
また、化石資源由来樹脂、および、生物由来樹脂として、ポリ乳酸(PLA)、エステル化澱粉、酢酸セルロース、ポリブチレンサクシネート(PBS)、ポリブチレンサクシネートアジペート(PBSA)等の生分解性を有する樹脂、ポリエチレン、ポリプロピレン、ポリエステル、ポリエチレンテレフタレート、ポリアミド(ナイロン)、バイオポリエチレン等の生分解性を有さない樹脂のいずれも用いることができる。
なお、生分解性樹脂とは、微生物の働きにより、分子レベルまで分解され、最終的には二酸化炭素と水となって自然界へと循環していく性質の樹脂をいう。
樹脂ラミネート層が押し出しラミネート層の場合は、紙製バリア原紙の少なくとも一方の面上に、上記した各種樹脂を押し出しラミネート法により樹脂ラミネート層として積層する。また、樹脂ラミネート層がフィルム貼合層の場合は、紙製バリア原紙の少なくとも一方の面上に、上記した各種樹脂製のフィルムをドライラミネート法、サンドラミネート法等により樹脂ラミネート層として貼合する。樹脂層は、紙製バリア原紙の両面に設けることもできるが、少なくとも水蒸気バリア層およびガスバリア層を有する側の面上に有することが好ましい。さらに、紙基材上に、水蒸気バリア層、ガスバリア層をこの順に有する紙製バリア原紙のガスバリア層上に、樹脂層を有することが好ましい。
本発明の紙製バリア材料を食品などの包装材、特に軟包装材として用いる場合は、ヒートシール性を有する樹脂と積層することにより、包装材料としての密閉性を高め、内容物を酸素による酸化や湿気などによる劣化などから守り、保存期間の延長を可能にすることができる。
また、産業用資材などに用いられる積層体として使用する場合においても、酸素や湿気の侵入を抑えることで、腐敗、劣化を防止できるほか、溶剤の臭気が漏れ出るのを防止するフレーバーバリア性などの効果が期待される。
(1)水蒸気透過度(水蒸気バリア性):温度40±0.5℃、相対湿度90±2%の条件下で、透湿度測定器(Dr.Lyssy社製、L80-4000)を用いて測定した。
(2)酸素透過度(ガスバリア性):MOCON社製、OX-TRAN2/21を使用し、23℃-0%RH条件(乾燥下)および23℃-85%RH条件(高湿度下)にて測定した。
(紙基材の作製)
カナダ式標準ろ水度(CSF)500mlの広葉樹クラフトパルプ(LBKP)とCSF530mlの針葉樹クラフトパルプ(NBKP)を80/20の重量比で配合して、原料パルプとした。
原料パルプに、乾燥紙力増強剤として分子量250万のポリアクリルアミド(PAM)を対絶乾パルプ重量あたり0.1%、サイズ剤としてアルキルケテンダイマー(AKD)を対絶乾パルプ重量あたり0.35%、湿潤紙力増強剤としてポリアミドエピクロロヒドリン(PAEH)系樹脂を対絶乾パルプ重量あたり0.15%、さらに歩留剤として分子量1000万のポリアクリルアミド(PAM)を対絶乾パルプ重量あたり0.08%添加した後、デュオフォーマーFM型抄紙機にて300m/minの速度で抄紙し、坪量59g/m2の紙を得た。
次いで、得られた紙に固形分濃度2%に調製したポリビニルアルコール(クラレ社製、PVA117)をロッドメタリングサイズプレスで、両面合計で1.0g/m2塗工、乾燥し、坪量60g/m2の原紙を得た。得られた原紙をチルドカレンダーを用いて、速度300min/m、線圧50kgf/cm、1パスにて平滑処理を行った。
エンジニアードカオリン(イメリス社製、バリサーフHX、平均粒子径9.0μm、アスペクト比80-100)に分散剤としてポリアクリル酸ソーダを添加し(対顔料0.2%)、セリエミキサーで分散して固形分濃度60%のカオリンスラリーを調製した。得られたカオリンスラリー中に、顔料100部(固形分)に対し水蒸気バリア性樹脂としてスチレン・アクリル系共重合体エマルジョン(サイデン化学社製、X-511-374E)を100部(固形分)となるように配合し、固形分濃度45%の水蒸気バリア層用塗工液A1を得た。
(ガスバリア層用塗工液B1の調製)
ポリビニルアルコール(クラレ社製、PVA117)水溶液を固形分濃度12%となるよう調製し、ガスバリア層用塗工液B1を得た。なお、このガスバリア層用塗工液B1の表面張力は35mN/mであった。
(紙製バリア材料の作製)
得られた原紙上に、水蒸気バリア層用塗工液A1を乾燥重量で塗工量15g/m2となるよう塗工速度300m/minでブレードコーターを用いて片面塗工、乾燥した後、その上にガスバリア層用塗工液B1を乾燥重量で塗工量5.0g/m2となるよう塗工速度300m/minでロールコーターを用いて片面塗工し、紙製バリア原紙を得た。なお、この紙製バリア原紙の水蒸気バリア層表面の濡れ張力は35mN/mであった。
さらに得られた紙製バリア原紙の両面に、押出しラミネート法により低密度ポリエチレン(日本ポリエチレン社製、LC602A)をそれぞれ厚み30μm積層し、紙製バリア材料を得た。
(水蒸気バリア層用塗工液A2の調製)
エンジニアードカオリン(イメリス社製、バリサーフHX、平均粒子径9.0μm、アスペクト比80-100)に分散剤としてポリアクリル酸ソーダを添加し(対顔料0.2%)、セリエミキサーで分散して固形分濃度60%のカオリンスラリーを調製した。得られたカオリンスラリー中に、顔料100部(固形分)に対し水蒸気バリア性樹脂としてスチレン・アクリル系共重合体エマルジョン(サイデン化学社製、X-511-374E)を100部(固形分)、パラフィン系撥水剤(丸芳化学社製、MYE-35G、ワックス含有ポリエチレンエマルジョン)を100部(固形分)となるように配合し、固形分濃度45%の水蒸気バリア層用塗工液A2を得た。
紙製バリア原紙への押出しラミネート法による低密度ポリエチレンの積層を、ガスバリア層上にはドライラミネート法による厚さ20μmの直鎖状低密度ポリエチレンフィルム(フタムラ化学社製、LL-XMTN)、原紙面上にはドライラミネート法による厚さ20μmの二軸延伸ポリプロピレンフィルム(フタムラ化学社製、FOA)を、それぞれ貼合することに変更した以外は、実施例2と同様にして紙製バリア材料を得た。
(ガスバリア層用塗工液B2の調製)
ポリビニルアルコール(クラレ社製、PVA117)水溶液を固形分濃度12%となるよう調製した。得られたポリビニルアルコール水溶液中に、ポリビニルアルコール100部(固形分)に対しシリコーン系界面活性剤(サンノプコ社製、SNウェット125)を1部(固形分)となるように配合し、ガスバリア層用塗工液B2を得た。なお、このガスバリア層用塗工液B2の表面張力は30mN/mであった。
得られた紙製バリア原紙のガスバリア層上にフィルム(アルミ蒸着PETフィルム、中井工業社製、MY-15)をドライラミネート法にて貼合した以外は、実施例4と同様にして紙製バリア材料を得た。
紙基材にガスバリア層、水蒸気バリア層をこの順に設けた以外は、実施例2と同様にして紙製バリア材料を得た。
[比較例2]
水蒸気バリア層を設けなかった以外は、実施例2と同様にして紙製バリア材料を得た。
[比較例3]
ガスバリア層を設けなかった以外は、実施例2と同様にして紙製バリア材料を得た。
(水蒸気バリア層用塗工液A3の調製)
エンジニアードカオリン(イメリス社製、バリサーフHX、平均粒子径9.0μm、アスペクト比80-100)に分散剤としてポリアクリル酸ソーダを添加し(対顔料0.2%)、セリエミキサーで分散して固形分濃度55%のカオリンスラリーを調製した。得られたカオリンスラリー中に、顔料100部(固形分)に対し水蒸気バリア性樹脂としてスチレン・ブタジエン系ラテックス(日本ゼオン社製、PNT7868)を100部(固形分)となるように配合し、固形分濃度50%の水蒸気バリア層用塗工液A3を得た。
(ガスバリア層用塗工液B3の調製)
エンジニアードカオリン(イメリス社製、バリサーフHX、平均粒子径9.0μm、アスペクト比80-100)に分散剤としてポリアクリル酸ソーダを添加し(対顔料0.2%)、セリエミキサーで分散して固形分濃度55%のカオリンスラリーを調製した。ポリビニルアルコール(クラレ社製、PVA117)水溶液を固形分濃度10%となるよう調製し、PVA水溶液を得た。得られたカオリンスラリーと、PVA水溶液を固形分で顔料:PVA水溶液=100:100として固形分濃度が10%となるよう混合し、ガスバリア層用塗工液B3を得た。
カップ原紙(坪量270g/m2)上に水蒸気バリア層用塗工液A3を乾燥重量で塗工量15g/m2となるよう塗工速度300m/分でブレードコーターを用いて片面塗工、乾燥した後、その上にガスバリア層用塗工液B3を乾燥重量で塗工量2.0g/m2となるよう塗工速度300m/分でエアナイフコーターを用いて片面塗工し、坪量287g/m2、紙厚0.3mmの紙製バリア原紙を得た。得られた紙製バリア原紙のガスバリア層上にフィルム(アルミ蒸着PETフィルム、中井工業社製、MY-15)をドライラミネート法にて貼合し、紙製バリア材料を得た。
貼合するフィルムをアルミ蒸着PETフィルム(中井工業社製、MY-15)からアルミナ(セラミック)蒸着PETフィルム(凸版印刷社製、GL-ARH-F)に変更した以外は、実施例6と同様にして紙製バリア材料を得た。
貼合するフィルムをアルミ蒸着PETフィルム(中井工業社製、MY-15)からEVOHフィルム(クラレ社製、エバールフィルム EF-XL)に変更した以外は、実施例6と同様にして紙製バリア材料を得た。
紙基材をカップ原紙(坪量270g/m2)から片艶クラフト紙(坪量70g/m2)に変更した以外は、実施例6と同様にして、紙製バリア材料を得た。
アルミ蒸着PETフィルムを貼合せず、紙製バリア原紙をそのまま使用した以外は実施例6と同様にして紙製バリア材料を得た。
Claims (15)
- 下記(1)~(3)の条件を満たすことを特徴とする紙製バリア材料:
(1)温度40±0.5℃、相対湿度90±2%における水蒸気透過度が3g/m2・day以下、
(2)温度:23℃、相対湿度0%における酸素透過度が3ml/m2・day・atm以下、
(3)温度:23℃、相対湿度85%における酸素透過度が3ml/m2・day・atm以下。 - 紙基材上に、水蒸気バリア層、水溶性高分子を含有するガスバリア層を有する紙製バリア原紙の少なくとも一方の面上に、さらに保護層を有することを特徴とする請求項1に記載の紙製バリア材料。
- 前記紙製バリア原紙が、紙基材上に、水蒸気バリア層、ガスバリア層をこの順に有することを特徴とする請求項2に記載の紙製バリア材料。
- 前記保護層が、樹脂層であることを特徴とする請求項2または3に記載の紙製バリア材料。
- 前記樹脂層が、樹脂ラミネート層であることを特徴とする請求項4に記載の紙製バリア材料。
- 前記樹脂ラミネート層が、押し出しラミネート層であることを特徴とする請求項5に記載の紙製バリア材料。
- 前記樹脂ラミネート層が、フィルム貼合層であることを特徴とする請求項5に記載の紙製バリア材料。
- 前記フィルム貼合層が、バリアフィルム貼合層であることを特徴とする請求項7に記載の紙製バリア材料。
- 前記バリアフィルム貼合層が、蒸着フィルム貼合層であることを特徴とする請求項8に記載の紙製バリア材料。
- 前記樹脂層が、生物由来樹脂を含むことを特徴とする請求項4~9のいずれか一項に記載の紙製バリア材料。
- 前記生物由来樹脂が、生分解性を有する樹脂であることを特徴とする請求項10に記載の紙製バリア材料。
- 前記生物由来樹脂が、生分解性を有さない樹脂であることを特徴とする請求項10に記載の紙製バリア材料。
- 前記樹脂層が、化石資源由来樹脂を含むことを特徴とする請求項4~9のいずれか一項に記載の紙製バリア材料。
- 前記化石資源由来樹脂が、生分解性を有する樹脂であることを特徴とする請求項13に記載の紙製バリア材料。
- 前記化石資源由来樹脂が、生分解性を有さない樹脂であることを特徴とする請求項13に記載の紙製バリア材料。
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004042959A (ja) * | 2002-07-11 | 2004-02-12 | Dainippon Printing Co Ltd | レトルト処理用紙容器およびそれを使用したレトルト処理包装体 |
JP2013079469A (ja) * | 2011-10-04 | 2013-05-02 | Techno World:Kk | ガスバリア紙状体及びそれを用いた包装体 |
WO2013069788A1 (ja) * | 2011-11-10 | 2013-05-16 | 日本製紙株式会社 | 紙製バリア包装材料 |
JP2014009413A (ja) * | 2012-06-29 | 2014-01-20 | Nippon Paper Industries Co Ltd | 紙製バリア包装材料 |
JP2016064871A (ja) * | 2014-09-19 | 2016-04-28 | 日本製紙株式会社 | 液体紙容器 |
JP2017124851A (ja) * | 2016-01-13 | 2017-07-20 | 日本製紙株式会社 | 紙製容器 |
WO2017170462A1 (ja) * | 2016-03-28 | 2017-10-05 | 日本製紙株式会社 | 紙製バリア材料 |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10259285A (ja) * | 1997-03-18 | 1998-09-29 | Unitika Chem Co Ltd | 紙用コート剤 |
JPH10249978A (ja) | 1997-03-18 | 1998-09-22 | Oji Paper Co Ltd | バリア性積層体 |
JP2000052520A (ja) | 1998-08-07 | 2000-02-22 | Oji Paper Co Ltd | ガスバリヤー性積層体 |
JP2001239629A (ja) * | 2000-02-28 | 2001-09-04 | Sumitomo Chem Co Ltd | 積層フィルム |
CA2365922C (en) | 2000-12-26 | 2010-03-09 | Mitsubishi Gas Chemical Company, Inc. | Composition for coating having a gas barrier property, coating and coated film having a gas barrier property using the same |
JP2003094574A (ja) | 2001-09-27 | 2003-04-03 | Kuraray Co Ltd | バリア性紙積層体およびその製造方法 |
JP2002203197A (ja) * | 2001-11-12 | 2002-07-19 | Seiko Instruments Inc | クレジットカード認証システム |
JP2005162213A (ja) | 2003-11-28 | 2005-06-23 | Daio Paper Corp | 包装用紙 |
JP2006321196A (ja) * | 2005-05-20 | 2006-11-30 | Toyobo Co Ltd | ガスバリア性積層フィルム |
JP2008001859A (ja) * | 2006-06-26 | 2008-01-10 | Ajinomoto Co Inc | 樹脂組成物及びこれを用いた商品収納トレー |
WO2009020239A1 (ja) | 2007-08-07 | 2009-02-12 | Kao Corporation | ガスバリア用材料 |
JP5151457B2 (ja) * | 2007-12-21 | 2013-02-27 | 大日本印刷株式会社 | 紙カップ |
JP2009184138A (ja) | 2008-02-04 | 2009-08-20 | Oji Paper Co Ltd | ガスバリア性積層体 |
CN101990495B (zh) | 2008-04-09 | 2013-09-18 | 可乐丽股份有限公司 | 阻气性积层体及其制备方法 |
JP5321798B2 (ja) | 2008-09-19 | 2013-10-23 | 大日本印刷株式会社 | 紙容器 |
ES2628056T3 (es) | 2008-12-17 | 2017-08-01 | Tetra Laval Holdings & Finance S.A. | Estratificado de envasado, método de fabricación del estratificado de envasado y recipiente de envasado producido a partir de éste |
JP2010202856A (ja) | 2009-02-06 | 2010-09-16 | Kao Corp | セルロース繊維の懸濁液とその製造方法 |
EP2451641B1 (en) | 2009-07-08 | 2016-05-04 | Tetra Laval Holdings & Finance S.A. | High barrier packaging laminate, method for manufacturing of the packaging laminate and packaging container |
JP2012011651A (ja) | 2010-06-30 | 2012-01-19 | Nippon Paper Industries Co Ltd | ガスバリア性包装材料 |
JP2013071404A (ja) | 2011-09-29 | 2013-04-22 | Nippon Paper Industries Co Ltd | ガスバリア性包装材料及びその製造方法 |
JP2013169704A (ja) | 2012-02-21 | 2013-09-02 | Nippon Paper Industries Co Ltd | 食品用包装材料 |
JP6205828B2 (ja) | 2012-06-11 | 2017-10-04 | 日本製紙株式会社 | 紙製バリア包装材料 |
JP6136272B2 (ja) * | 2013-01-09 | 2017-05-31 | 大日本印刷株式会社 | バイオマス由来の樹脂層を備えた積層体 |
JP6236329B2 (ja) | 2013-03-08 | 2017-11-22 | 日本製紙株式会社 | 紙製バリア包装材料 |
JP6313755B2 (ja) | 2013-05-08 | 2018-04-18 | 日本製紙株式会社 | 紙製バリア包装材料 |
GB2502241B (en) | 2013-09-19 | 2014-04-30 | Rockwell Solutions Ltd | Packaging material and methods for manufacturing the same |
JP2015231870A (ja) * | 2014-05-13 | 2015-12-24 | 凸版印刷株式会社 | 蓋材とそれを用いた包装容器 |
JP2015227517A (ja) | 2014-05-30 | 2015-12-17 | 日本製紙株式会社 | 紙製バリア包装材料 |
JP2016068363A (ja) | 2014-09-30 | 2016-05-09 | 日本製紙株式会社 | 煙草用包装材料 |
JP6896995B2 (ja) * | 2015-12-22 | 2021-06-30 | 大日本印刷株式会社 | 包装材用積層フィルム、及び包装袋 |
-
2017
- 2017-09-29 CN CN201780035092.9A patent/CN109311299B/zh active Active
- 2017-09-29 EP EP17856415.9A patent/EP3461637B1/en active Active
- 2017-09-29 WO PCT/JP2017/035408 patent/WO2018062466A1/ja active Application Filing
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- 2017-09-29 JP JP2018542911A patent/JP7063814B2/ja active Active
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- 2017-09-29 US US16/308,778 patent/US10882676B2/en active Active
-
2018
- 2018-02-20 JP JP2018028078A patent/JP6479228B2/ja active Active
- 2018-02-20 JP JP2018028079A patent/JP6479229B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004042959A (ja) * | 2002-07-11 | 2004-02-12 | Dainippon Printing Co Ltd | レトルト処理用紙容器およびそれを使用したレトルト処理包装体 |
JP2013079469A (ja) * | 2011-10-04 | 2013-05-02 | Techno World:Kk | ガスバリア紙状体及びそれを用いた包装体 |
WO2013069788A1 (ja) * | 2011-11-10 | 2013-05-16 | 日本製紙株式会社 | 紙製バリア包装材料 |
JP2014009413A (ja) * | 2012-06-29 | 2014-01-20 | Nippon Paper Industries Co Ltd | 紙製バリア包装材料 |
JP2016064871A (ja) * | 2014-09-19 | 2016-04-28 | 日本製紙株式会社 | 液体紙容器 |
JP2017124851A (ja) * | 2016-01-13 | 2017-07-20 | 日本製紙株式会社 | 紙製容器 |
WO2017170462A1 (ja) * | 2016-03-28 | 2017-10-05 | 日本製紙株式会社 | 紙製バリア材料 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7443360B2 (ja) | 2018-10-26 | 2024-03-05 | モノソル リミテッド ライアビリティ カンパニー | 多層水分散性物品 |
WO2021095780A1 (ja) * | 2019-11-14 | 2021-05-20 | 王子ホールディングス株式会社 | 紙積層体 |
JP6901058B1 (ja) * | 2019-11-14 | 2021-07-14 | 王子ホールディングス株式会社 | 紙積層体 |
JP7485487B2 (ja) | 2022-10-19 | 2024-05-16 | 日本製紙株式会社 | 紙製バリア材料、バリア原紙、および紙製バリア材料の製造方法 |
WO2024204251A1 (ja) * | 2023-03-30 | 2024-10-03 | Toppanホールディングス株式会社 | 積層体及び包装袋 |
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JP7063814B2 (ja) | 2022-05-09 |
EP3461637B1 (en) | 2022-08-03 |
US10882676B2 (en) | 2021-01-05 |
JP2018089980A (ja) | 2018-06-14 |
JP6479229B2 (ja) | 2019-03-06 |
CN109311299A (zh) | 2019-02-05 |
JP2018089979A (ja) | 2018-06-14 |
CN109311299B (zh) | 2023-05-09 |
AU2017337365A1 (en) | 2019-03-21 |
JPWO2018062466A1 (ja) | 2019-07-18 |
EP3461637A4 (en) | 2020-01-22 |
JP2018058360A (ja) | 2018-04-12 |
AU2017337365B2 (en) | 2021-09-09 |
EP3461637A1 (en) | 2019-04-03 |
JP6479228B2 (ja) | 2019-03-06 |
US20190308786A1 (en) | 2019-10-10 |
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