JP7520020B2 - ヒートシール可能な板紙 - Google Patents
ヒートシール可能な板紙 Download PDFInfo
- Publication number
- JP7520020B2 JP7520020B2 JP2021541169A JP2021541169A JP7520020B2 JP 7520020 B2 JP7520020 B2 JP 7520020B2 JP 2021541169 A JP2021541169 A JP 2021541169A JP 2021541169 A JP2021541169 A JP 2021541169A JP 7520020 B2 JP7520020 B2 JP 7520020B2
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- Prior art keywords
- paperboard
- coating layer
- dispersion coating
- layer
- dispersion
- Prior art date
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- 239000011087 paperboard Substances 0.000 title claims description 181
- 239000006185 dispersion Substances 0.000 claims description 205
- 239000011247 coating layer Substances 0.000 claims description 182
- 239000010410 layer Substances 0.000 claims description 99
- 239000004816 latex Substances 0.000 claims description 78
- 229920000126 latex Polymers 0.000 claims description 78
- 239000000758 substrate Substances 0.000 claims description 66
- 239000000049 pigment Substances 0.000 claims description 50
- 229920000098 polyolefin Polymers 0.000 claims description 50
- 239000007787 solid Substances 0.000 claims description 38
- -1 polyethylene Polymers 0.000 claims description 34
- 239000004698 Polyethylene Substances 0.000 claims description 20
- 229920000573 polyethylene Polymers 0.000 claims description 20
- 239000004743 Polypropylene Substances 0.000 claims description 19
- 229920001155 polypropylene Polymers 0.000 claims description 19
- NJVOHKFLBKQLIZ-UHFFFAOYSA-N (2-ethenylphenyl) prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC=C1C=C NJVOHKFLBKQLIZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000011230 binding agent Substances 0.000 claims description 14
- 229920001577 copolymer Polymers 0.000 claims description 13
- 239000011115 styrene butadiene Substances 0.000 claims description 11
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 10
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 10
- 239000002174 Styrene-butadiene Substances 0.000 claims description 9
- 239000004927 clay Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000454 talc Substances 0.000 claims description 6
- 229910052623 talc Inorganic materials 0.000 claims description 6
- 239000011436 cob Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 description 56
- 239000011248 coating agent Substances 0.000 description 48
- 230000004888 barrier function Effects 0.000 description 25
- 238000004806 packaging method and process Methods 0.000 description 19
- 239000007788 liquid Substances 0.000 description 15
- 235000013305 food Nutrition 0.000 description 13
- 229920000642 polymer Polymers 0.000 description 12
- 239000000654 additive Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 239000005022 packaging material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 235000013611 frozen food Nutrition 0.000 description 7
- 239000000123 paper Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000008199 coating composition Substances 0.000 description 3
- 239000002655 kraft paper Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 229920006243 acrylic copolymer Polymers 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 238000003618 dip coating Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000007756 gravure coating Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 239000011859 microparticle Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000013074 reference sample Substances 0.000 description 2
- 239000006254 rheological additive Substances 0.000 description 2
- 238000007761 roller coating Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 229920001059 synthetic polymer Polymers 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229910000497 Amalgam Inorganic materials 0.000 description 1
- YAAQEISEHDUIFO-UHFFFAOYSA-N C=CC#N.OC(=O)C=CC=CC1=CC=CC=C1 Chemical compound C=CC#N.OC(=O)C=CC=CC1=CC=CC=C1 YAAQEISEHDUIFO-UHFFFAOYSA-N 0.000 description 1
- ISCIUIIRLMFIQC-UHFFFAOYSA-N C=CC=C.C=CC#N.OC(=O)C=C.C=CC1=CC=CC=C1 Chemical compound C=CC=C.C=CC#N.OC(=O)C=C.C=CC1=CC=CC=C1 ISCIUIIRLMFIQC-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- FNFSOXUCLXKAPE-UHFFFAOYSA-N O=C1OC(=O)C=C1.OC(=O)C=CC=CC1=CC=CC=C1 Chemical compound O=C1OC(=O)C=C1.OC(=O)C=CC=CC1=CC=CC=C1 FNFSOXUCLXKAPE-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 235000019568 aromas Nutrition 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 229920013724 bio-based polymer Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- CYKDLUMZOVATFT-UHFFFAOYSA-N ethenyl acetate;prop-2-enoic acid Chemical compound OC(=O)C=C.CC(=O)OC=C CYKDLUMZOVATFT-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/82—Paper comprising more than one coating superposed
- D21H19/826—Paper comprising more than one coating superposed two superposed coatings, the first applied being pigmented and the second applied being non-pigmented
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- 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
- 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
-
- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D109/00—Coating compositions based on homopolymers or copolymers of conjugated diene hydrocarbons
- C09D109/06—Copolymers with styrene
- C09D109/08—Latex
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/10—Homopolymers or copolymers of propene
- C09D123/14—Copolymers of propene
-
- 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
-
- 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
- D21H19/22—Polyalkenes, e.g. polystyrene
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/46—Non-macromolecular organic compounds
- D21H19/48—Diolefins, e.g. butadiene; Aromatic vinyl monomers, e.g. styrene; Polymerisable unsaturated acids or derivatives thereof, e.g. acrylic acid
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/62—Macromolecular organic compounds or oligomers thereof 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
- D21H19/72—Coated paper characterised by the paper substrate
- D21H19/76—Coated paper characterised by the paper substrate the substrate having specific absorbent properties
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- 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
- D21H19/84—Paper comprising more than one coating on both sides of the substrate
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- 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
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- 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
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- 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
- B32B2255/12—Coating on the layer surface on paper layer
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- 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
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- B32B2255/26—Polymeric coating
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- 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
- B32B2255/28—Multiple coating on one surface
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Paper (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
Description
ヒートシール可能な板紙であって、
- 第1の面および第2の面を含む板紙基材、
- 板紙基材の第1の面上に配置された第1の分散液コーティング層、および
- 第1の分散液コーティング層上に配置された第2の分散液コーティング層を含み、
第1の分散液コーティング層がラテックスおよび顔料を含み、第2の分散液コーティング層がポリオレフィンを含む、ヒートシール可能な板紙。
いくつかの実施形態では、板紙は以下の特性を有する:
- 5%以上、好ましくは6%以上もしくは7%以上の、ISO1924-2に従う引張強度によって測定された破断点伸び(CD)、および/または
- 10g/m2以下、好ましくは5g/m2以下の、SCAN試験P12:64に従って測定された吸水率(COBB600)。
吸水率は、板紙のコーティングされた第1の面上で、すなわち、それから形成された包装の裏面/内面を形成する面の上で測定される。
ヒートシール可能な板紙を製造する方法であって、
- 第1の面および第2の面を含む板紙基材を提供するステップ、
- 板紙基材の第1の面上に第1の分散液コーティング層を適用するステップ、
- 第1の分散液コーティング層上に第2の分散液コーティング層を適用するステップ、および
- 任意選択で、板紙基材の第2の面上に第3の分散液コーティング層を適用するステップを含み、
第1の分散液コーティング層がラテックスおよび顔料を含み、第2の分散液コーティング層がポリオレフィンを含む、ヒートシール可能な板紙を製造する方法。
図1は、本発明の一実施形態によるヒートシール可能な板紙の概略図である。
図2は、本発明の別の実施形態によるヒートシール可能な板紙の概略図である。
本発明の包装材料を評価するために、ロッドコーターを使用する実験室規模の試験で、本発明に従って製造された包装材料のバリア特性、破断点伸びおよび静摩擦係数を評価する一連の試験を実施した。
サンプル1および2:分散液2/基板/分散液1/分散液2
サンプル3:分散液2/分散液1/基板/分散液1/分散液2
サンプル4:基板/分散液1/分散液2
なお、本発明に包含され得る諸態様または諸実施形態は、以下のとおり要約される。
[1].
ヒートシール可能な板紙であって、
- 第1の面および第2の面を含む板紙基材(1)、
- 板紙基材(1)の第1の面上に配置された第1の分散液コーティング層(2)、および
- 第1の分散液コーティング層(2)上に配置された第2の分散液コーティング層(3)を含み、
第1の分散液コーティング層(2)がラテックスおよび顔料を含み、第2の分散液コーティング層(3)がポリオレフィンを含むことを特徴とする、ヒートシール可能な板紙。
[2].
前記ラテックスが、スチレン-アクリラートラテックス、スチレン-ブタジエンラテックス、またはそれらの混合物から選択される、上記項目1に記載の板紙。
[3].
前記第1の分散液コーティング層(2)が、層の乾燥固形分に基づいて30重量%以上から70重量%以下の範囲の量のラテックスを含む、上記項目1または2に記載の板紙。
[4].
前記第1の分散液コーティング層(2)が、層の乾燥固形分に基づいて30重量%以上から70重量%以下の範囲の量、好ましくは60重量%の量の顔料を含む、上記項目1~3のいずれか1項に記載の板紙。
[5].
前記顔料が、クレーおよび/またはタルクから選択される、上記項目1~4のいずれか1項に記載の板紙。
[6].
前記第2の分散液コーティング層(3)が、ポリエチレン(PE)、ポリプロピレン(PP)、および/またはポリエチレンとポリプロピレンのコポリマーの群から選択されるポリオレフィンを含む、上記項目1~5のいずれか1項に記載の板紙。
[7].
前記第2の分散液コーティング層(3)が、層の乾燥固形分に基づいて90重量%以上から100重量%以下の範囲の量、好ましくは90重量%以上から98重量%以下の範囲の量のポリオレフィンを含む、上記項目1~6のいずれか1項に記載の板紙。
[8].
前記第2の分散液コーティング層(3)が、層の乾燥固形分に基づいて0重量%以上から5重量%以下の範囲の量、好ましくは1重量%以上から5重量%以下の範囲の量の共バインダーを含み、この共バインダーが好ましくはラテックスである、上記項目1~7のいずれか1項に記載の板紙。
[9].
前記板紙基材(1)が、第2の面上に第3の分散液コーティング層(4)を含み、この第3の分散液コーティング層(4)が、層の乾燥固形分に基づいて50重量%以上から100重量%以下の範囲の量のポリオレフィンを含む、上記項目1~8のいずれか1項に記載の板紙。
[10].
前記第3の分散液コーティング層(4)が、層の乾燥固形分に基づいて0重量%以上から50重量%以下の範囲の量で、一緒に存在するラテックスおよび顔料を含む、上記項目11に記載の板紙。
[11].
前記板紙基材(1)が、第2の面上に第3の分散液コーティング層(4)を含み、この第3の分散液コーティング層(4)が、層の乾燥固形分に基づいて90重量%以上から100重量%以下の範囲の量のポリオレフィンを含む、上記項目1~8のいずれか1項に記載の板紙。
[12].
前記板紙基材(1)が、第2の面上に第3の分散液コーティング層(4)を含み、かつ第3の分散液コーティング層上に第4の分散液コーティング層(5)を含み、この第3の分散液コーティング層(4)がラテックスおよび顔料を含み、この第4の分散液コーティング層(5)がポリオレフィンを含む、上記項目1~8のいずれか1項に記載の板紙。
[13].
前記板紙が以下の特性を有する、上記項目1~12のいずれか1項に記載の板紙:
- 5%以上、好ましくは6%以上もしくは7%以上の破断点伸び(CD、ISO1924-2に従う引張強度により測定)、および/または
- 10g/m 2 以下、好ましくは5g/m 2 以下の吸水率(COBB600、SCAN試験P12:64に従って測定)。
[14].
ヒートシール可能な板紙を製造する方法であって、
- 第1の面および第2の面を含む板紙基材(1)を提供するステップ、
- 板紙基材(1)の第1の面上に第1の分散液コーティング層(2)を適用するステップ、
- 第1の分散液コーティング層(2)上に第2の分散液コーティング層(3)を適用するステップ、および
- 任意選択で、板紙基材(1)の第2の面上に第3の分散液コーティング層(4)を適用するステップを含み、
第1の分散液コーティング層(2)がラテックスおよび顔料を含み、第2の分散液コーティング層(3)がポリオレフィンを含むことを特徴とする、ヒートシール可能な板紙を製造する方法。
[15].
上記項目1~13のいずれか1項に記載のヒートシール可能な板紙を含むか、またはそれから作製された包装。
Claims (14)
- ヒートシール可能な板紙であって、
- 第1の面および第2の面を含む板紙基材(1)、
- 板紙基材(1)の第1の面上に配置された第1の分散液コーティング層(2)、および
- 第1の分散液コーティング層(2)上に配置された第2の分散液コーティング層(3)を含み、
第1の分散液コーティング層(2)がラテックスおよび顔料を含み、第2の分散液コーティング層(3)がポリエチレンとポリプロピレンのコポリマーを含むことを特徴とする、ヒートシール可能な板紙。 - 前記ラテックスが、スチレン-アクリラートラテックス、スチレン-ブタジエンラテックス、またはそれらの混合物から選択される、請求項1に記載の板紙。
- 前記第1の分散液コーティング層(2)が、層の乾燥固形分に基づいて30重量%以上から70重量%以下の範囲の量のラテックスを含む、請求項1または2に記載の板紙。
- 前記第1の分散液コーティング層(2)が、層の乾燥固形分に基づいて30重量%以上から70重量%以下の範囲の量の顔料を含む、請求項1~3のいずれか1項に記載の板紙。
- 前記顔料が、クレーおよび/またはタルクから選択される、請求項1~4のいずれか1項に記載の板紙。
- 前記第2の分散液コーティング層(3)が、層の乾燥固形分に基づいて90重量%以上から100重量%以下の範囲の量のポリオレフィンを含む、請求項1~5のいずれか1項に記載の板紙。
- 前記第2の分散液コーティング層(3)が、層の乾燥固形分に基づいて0重量%以上から5重量%以下の範囲の量の共バインダーを含む、請求項1~6のいずれか1項に記載の板紙。
- 前記共バインダーがラテックスである、請求項7に記載の板紙。
- 前記板紙基材(1)が、第2の面上に第3の分散液コーティング層(4)を含み、この第3の分散液コーティング層(4)が、層の乾燥固形分に基づいて50重量%以上から100重量%以下の範囲の量のポリオレフィンを含む、請求項1~8のいずれか1項に記載の板紙。
- 前記第3の分散液コーティング層(4)が、層の乾燥固形分に基づいて0重量%以上から50重量%以下の範囲の量で、一緒に存在するラテックスおよび顔料を含む、請求項9に記載の板紙。
- 前記板紙基材(1)が、第2の面上に第3の分散液コーティング層(4)を含み、この第3の分散液コーティング層(4)が、層の乾燥固形分に基づいて90重量%以上から100重量%以下の範囲の量のポリオレフィンを含む、請求項1~8のいずれか1項に記載の板紙。
- 前記板紙基材(1)が、第2の面上に第3の分散液コーティング層(4)を含み、かつ第3の分散液コーティング層上に第4の分散液コーティング層(5)を含み、この第3の分散液コーティング層(4)がラテックスおよび顔料を含み、この第4の分散液コーティング層(5)がポリオレフィンを含む、請求項1~8のいずれか1項に記載の板紙。
- 前記板紙が以下の特性を有する、請求項1~12のいずれか1項に記載の板紙:
- 5%以上の破断点伸び(CD、ISO1924-2に従う引張強度により測定)、および/または
- 10g/m2以下の吸水率(COBB600、SCAN試験P12:64に従って測定)。 - 請求項1~13のいずれか1項に記載のヒートシール可能な板紙を含むか、またはそれから作製された包装。
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