WO2008050486A1 - Matériau de conditionnement en papier stratifié et son procédé de production - Google Patents
Matériau de conditionnement en papier stratifié et son procédé de production Download PDFInfo
- Publication number
- WO2008050486A1 WO2008050486A1 PCT/JP2007/001167 JP2007001167W WO2008050486A1 WO 2008050486 A1 WO2008050486 A1 WO 2008050486A1 JP 2007001167 W JP2007001167 W JP 2007001167W WO 2008050486 A1 WO2008050486 A1 WO 2008050486A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- packaging material
- barrier
- layer
- laminated packaging
- resin
- Prior art date
Links
- 239000005022 packaging material Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title abstract description 17
- 230000004888 barrier function Effects 0.000 claims abstract description 81
- 239000010410 layer Substances 0.000 claims abstract description 73
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 29
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 20
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 20
- 239000011342 resin composition Substances 0.000 claims abstract description 20
- 239000012792 core layer Substances 0.000 claims abstract description 19
- 229920003023 plastic Polymers 0.000 claims abstract description 18
- 239000004033 plastic Substances 0.000 claims abstract description 18
- 235000013305 food Nutrition 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims description 43
- 239000011347 resin Substances 0.000 claims description 43
- 239000000123 paper Substances 0.000 claims description 35
- 239000002994 raw material Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 13
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 12
- 230000008961 swelling Effects 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 239000000155 melt Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 25
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 17
- 229910052760 oxygen Inorganic materials 0.000 description 17
- 239000001301 oxygen Substances 0.000 description 17
- 239000000243 solution Substances 0.000 description 15
- 239000000758 substrate Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 6
- 238000004806 packaging method and process Methods 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229920000704 biodegradable plastic Polymers 0.000 description 4
- 239000002734 clay mineral Substances 0.000 description 4
- 235000013336 milk Nutrition 0.000 description 4
- 239000008267 milk Substances 0.000 description 4
- 210000004080 milk Anatomy 0.000 description 4
- 229920000111 poly(butyric acid) Polymers 0.000 description 4
- 239000004626 polylactic acid Substances 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000002648 laminated material Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 229920013716 polyethylene resin Polymers 0.000 description 3
- 238000007127 saponification reaction Methods 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 229920000954 Polyglycolide Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000747 poly(lactic acid) Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004633 polyglycolic acid Substances 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920006121 Polyxylylene adipamide Polymers 0.000 description 1
- 241000589517 Pseudomonas aeruginosa Species 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 229920003232 aliphatic polyester Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 125000003262 carboxylic acid ester group Chemical group [H]C([H])([*:2])OC(=O)C([H])([H])[*:1] 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 235000021056 liquid food Nutrition 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000012802 nanoclay Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 229910052615 phyllosilicate Inorganic materials 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910021647 smectite Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/3188—Next to cellulosic
- Y10T428/31895—Paper or wood
Definitions
- the present invention relates to a laminated packaging material for foods having a paper core layer, a barrier layer, and a plant-derived material, and a method for producing the same.
- a web-shaped packaging laminate material is formed into a tube shape by longitudinal sealing in the longitudinal direction. Fill the tube-shaped packaging material with food. Cut the tubular packaging material by transverse sealing in the transverse direction. Fold along the crease line to form the final shape.
- the final shape includes a brick shape and a regular tetrahedron shape.
- the laminated packaging material usually has a thermoplastic material innermost layer (polyethylene resin layer), an aluminum foil layer of the barrier layer, a paper core layer, and a polyethylene resin outermost layer.
- the oxygen barrier layer other than the aluminum foil includes a plastic film having an inorganic vapor-deposited layer, a single layer laminated with ethylene / vinyl alcohol copolymer (EVOH) or MXD 6 nylon, which is an oxygen / clear resin, and a barrier. Multilayers in which resin films are laminated or the above resins are coextruded are used.
- EVOH ethylene / vinyl alcohol copolymer
- MXD 6 nylon which is an oxygen / clear resin
- Multilayers in which resin films are laminated or the above resins are coextruded are used.
- As a normal method of laminating the oxygen barrier layer there are a method of laminating a barrier resin film on the core layer with an adhesive, and a method of extruding a molten barrier resin onto the core layer surface
- Core layer paper is a typical plant-derived material.
- other laminated materials thermoplastic materials (polyethylene resin, etc.) and many oxygen barrier resins are petroleum-derived materials. It is desired to use more plant-derived materials to reduce environmental impact.
- plastics biomass polymers
- PLA polylactic acid
- PAS polysuccinic acid
- PBA polybutyric acid
- biodegradable composite materials in which polylactic acid or its derivatives are coated on the surface of a substrate containing plant fibers, packaging containers (Patent No. 2) 5 1 3 0 9 1), a film comprising a lactic acid polymer and a plasticizer having two or more carboxylic acid ester groups, and having a water vapor transmission rate of 50 to 300 g / m 2 ⁇ 2 Food packaging film with a thickness of 4 hr and a thickness of 10 to 50 Om.
- Patent No. 2 packaging containers
- Patent Document 1 Special Table 2 0 3-5 0 8 2 7 4
- Patent Document 2 Japanese Patent No. 2 5 1 3 0 9 1
- Patent Document 3 Japanese Patent No. 3 1 7 8 6 9 2
- Patent Document 4 Japanese Patent No. 3 3 6 0 7 6 2
- the laminated packaging material for food of the present invention that solves this problem is a laminated packaging material including a paper core layer, a barrier layer, and a thermoplastic resin layer, and the barrier layer is made of polyvinyl alcohol, and is thermoplastic.
- the resin layer is made of a resin composition containing plant raw material plastics and having melt extrudable characteristics.
- the barrier layer comprises polyvinyl alcohol and a minute layered silicate, that is, a minute inorganic flaky compound or clay mineral.
- the resin composition of the thermoplastic resin layer is 0.9.
- the resin composition of the thermoplastic resin layer is 0.9.
- a high MFR plant-based plastic with an average density of 10-0.925 and a melt mouth ratio (MFR) of 5-20, and an average density of 0.91 0-0.925 and 1.55-1.
- MFR melt mouth ratio
- SR swelling rate
- the resin composition of the thermoplastic resin layer contains a biodegradable plasticizer, and has an average density of 0.910 to 0.925 and a melt of 3 to 15 It has a mouthful ratio (MFR) and a swelling ratio (SR) of 1.55 to 1.75.
- a barrier resin liquid or a barrier resin solution containing a solution is applied to the paper core layer as a barrier layer, and the barrier layer is dried.
- the dispersant or solvent in the barrier resin liquid is removed, and a thermoplastic resin layer is formed by extruding a resin composition containing plant raw material plastic on one surface of the dry barrier.
- the barrier resin is polyvinyl alcohol.
- the paper laminated packaging material is a laminated packaging material comprising a paper core layer, a barrier layer and a thermoplastic resin layer, wherein the barrier layer comprises polyvinyl alcohol, and the thermoplastic resin layer comprises plant raw material plastic. And a resin composition having melt extrudable characteristics. Plant-derived materials can be used as the main constituent materials.
- the polyvinyl alcohol of the barrier layer laminated on the paper core layer with the thermoplastic resin layer exhibits an excellent oxygen barrier property, and is a minute layered silicate, that is, a minute inorganic flaky compound or clay mineral When so-called nanoclay is added to polyvinyl alcohol, further excellent oxygen barrier properties can be exhibited.
- the resin composition of the thermoplastic resin layer has excellent average density for extrusion processing, melt flow ratio (MFR) and swelling ratio (SR), so it can produce laminated packaging materials at high speed with excellent drawdown and necking. can do.
- the manufacturing method of the laminated packaging material involves applying the barrier resin liquid as a barrier layer to the paper core layer, drying the barrier layer, and extruding the plant raw material plastic to form the thermoplastic resin layer, so that the number of processes is few Barrier laminated packaging materials can be manufactured.
- petroleum-derived adhesive is not essential, the structure of the laminate can be simplified, and the thickness of the laminate can be reduced. Moreover, even a thin barrier layer does not cause defects such as pinholes.
- the paper laminated packaging material is a laminated packaging material comprising a paper core layer, a barrier layer and a thermoplastic resin layer, wherein the barrier layer comprises polyvinyl alcohol, and the thermoplastic resin layer comprises plant raw material plastic. And a resin composition having melt extrudable characteristics.
- the core layer is a paper substrate.
- the paperboard used as the paper base material can be one that is generally used as a raw material for packaging materials.
- the basis weight (weight per unit area) is 150 g / m 2 More than 400g / m 2 can be used. But Do to be limited to this range ⁇ optionally performs processing on thin paper, such as 30 g / m 2 or more 150 g / m 2 less than glassine paper, which other paper substrate sheet or film such as, It is also possible to perform layering with a resin base material.
- clay coated paper with improved surface smoothness may be used.
- surface treatment such as corona treatment and flame treatment is generally performed.
- such surface treatment may be performed as needed during processing.
- the barrier layer is made of polyvinyl alcohol. Polyvinyl alcohol resin.
- the polyvinyl alcohol resin is a resin obtained by saponifying a vinyl group of a polymer obtained by singly or co-polymerizing ethyl acetate.
- Polyvinyl alcohol resin is a water-soluble resin obtained by saponifying the vinyl group of polyvinyl acetate obtained by polymerizing vinyl acetate monomer into a hydroxyl group, and has many different degrees of polymerization and saponification rate. There are different types. The actual resin is not only adjusted for the degree of polymerization and saponification rate, but also various modifications are made to adjust the physical properties and processability, but the degree of polymerization is 5 0-2 5 0 0, and the saponification rate is 69.5. Vinyl alcohol resins in the range of ⁇ 99.85 mo I% can be used.
- the barrier layer is composed of polyvinyl alcohol and a minute layered silicate uniformly dispersed therein.
- the barrier layer is in the average particle size in the range of 1-8 0 microns and 3 0 0 microns or more layered silicate containing no particle size from 0.1 to 1 0 weight 0/0 containing
- the layered silicate is substantially uniformly dispersed with an interlayer distance of 50 angstroms or more.
- the resin for the barrier layer is prepared by diffusing and polymerizing clay minerals in the monomer in the polymerization process, which process is very fine structure and silicic acid well dispersed in the polymer Produce salt platelets.
- magnesium silicate or aluminum silicate As a raw material of such a layered silicate, magnesium silicate or aluminum silicate An example is a layered phyllosilicate mineral composed of two layers.
- the amount of the layered silicate is preferably 0.05 to 15% by weight, more preferably 0.1 to 10% by weight, based on the polymer.
- a metal ion excluding Na, K, Li, and Ca for example, a metal ion selected from Ag, Zn, Co, Cd, Cu
- a metal compound thereof is used as an interlayer.
- Layered silicate (clay mineral) can be used. This layered silicate itself has excellent antibacterial properties against various microorganisms such as Pseudomonas aeruginosa, Escherichia coli and Staphylococcus aureus. Therefore, this antibacterial property is also imparted to the packaging laminate material containing this layered silicate.
- the thermoplastic resin layer comprises a resin composition containing plant raw material plastic and having melt extrudable characteristics.
- Examples of the plant raw material plastic used for the thermoplastic resin layer in the present invention include polylactic acid (PLA), polyglycolic acid, polysuccinic acid (PAS), polybutyric acid (PBA) and the like.
- PLA polylactic acid
- PAS polysuccinic acid
- PBA polybutyric acid
- it is a resin composition having melt extrudable characteristics.
- the resin composition of the thermoplastic resin layer has an average density of 0.91 0 to 0.925, a melt flow ratio (MFR) of 3 to 15 and 1.55 to 1.75. With a swelling ratio (SR) of
- a polymer is designed so as to impart this property to the plant material plastic itself, and secondly, two or more plant material plastics are blended. Then, it is possible to adopt a method such as designing a blend so that this property is imparted, and thirdly adding a modifier or the like so as to impart this property to a specific plant material plastic.
- the resin composition of the thermoplastic resin layer has a high average density of 0.910 to 0.925 and a melt flow ratio (MFR) of 5 to 20. Pend MFR plant-based plastics with high SR plant-based plastics having an average density of 0.91 0 to 0.925 and a swelling ratio (SR) of 1.55 to 1.75.
- the resin composition of the thermoplastic resin layer contains a biodegradable plasticizer such as rosin. It has an average density of 3 to 15 melt flow ratio (MFR) and a swelling ratio (SR) of 1.55 to 1.75.
- M F R important parameters for evaluating the extrudability (drawdown property, neck-in) are M F R, S R and density.
- MFR MeItFlowRate
- S R density
- density important parameters for evaluating the extrudability (drawdown property, neck-in) are M F R, S R and density.
- MFR MeItFlowRate
- High fluidity drawdown (extrusion processability) in extrusion process).
- SR Silicon Ratio
- a barrier resin solution containing a dispersion or solution of a polyvinyl alcohol barrier resin is applied as a barrier layer to a paper core layer, and the barrier layer is dried to form a barrier resin solution.
- the dispersing agent or solvent is removed, and a thermoplastic resin layer is formed by extruding a resin composition containing plant raw material plastic on one side of the dry barrier.
- the barrier resin liquid can be prepared by dispersing the barrier resin in a dispersant or dissolving it in a solvent.
- the dispersant and solvent are aqueous.
- the coating solution (barrier resin solution) is a solution in which polyvinyl alcohol resin is dissolved in water or a mixed solvent of water and alcohol, and there is no volatilization of harmful organic solvents in the drying process. Is an excellent processing method.
- the coating solution is not limited to the above, and it is also possible to use a solution obtained by dissolving or emulsifying the resin in another solvent.
- the coating can be performed in the same process as that of printing such as solution / dispersion spray coating or screen printing or gravure printing. By using a transfer method using a gravure roll, continuous and efficient processing can be performed.
- the solution / dispersion is thinly transferred to a transfer roll, and the resin is transferred to the paper substrate by adhering the roll to the surface of the paper substrate.
- the coated material is then introduced into a heat drying oven where it is dried.
- Barrier resin liquid coated Ru polyvinyl alcohol resin for example, 0 in weight after drying. 5 g / m 2 or more and 10 g / m 2 or less.
- thermoplastic resin layer (the innermost layer and the outermost layer) is formed by extruding a thermoplastic resin on one surface of the dry barrier.
- the web of the core layer having one barrier layer is placed in the nip between two rotating rollers while simultaneously laminating a thermoplastic resin that can be extruded to both outer sides of the web using an extruder. Pass through to obtain laminated packaging material.
- polyethylene can be coated on the opposite side of the barrier layer of the paper base core layer.
- Extrusion is performed in the same manner as the extrusion of a resin to a general paper substrate.
- Surface treatment such as edge treatment on the paper base material may be performed as necessary.
- the oxygen transmission rate for the sample 1-6 is, 610cc / m 2. Day. Atm ⁇ 6010cc / m 2. Day. Atm Ru der.
- the oxygen barrier property of the material is evaluated according to JIS K-7126. Specifically, measurement is performed using an oxygen permeation measuring device. Unlike physical barrier layers such as aluminum foil, the oxygen barrier properties of resin-based barrier materials depend on temperature and humidity, so the measurement conditions are set as necessary. In general, since a container formed using a material having an oxygen permeability of 50 cc / m 2 .day.atm or less is a container having oxygen / rear properties in practice, in the present invention, 50 cc / m 2 day.atm is used as a criterion for oxygen permeability
- barrier properties cannot be obtained simply by applying a barrier resin solution and drying.
- a packaging material is obtained in the same manner as in Example 1, except that the white paper of the milk container base paper is extruded with 2 O g / m 2 of low-density polyethylene on the base paper without applying an aqueous barrier resin solution. . It is a material that does not show good barrier properties.
- the laminated packaging material and the method for producing the same of the present invention can be applied to packaging containers such as milk, juices, beverages such as mineral water, and liquid foods.
Landscapes
- Laminated Bodies (AREA)
- Wrappers (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0718503-0A2A BRPI0718503A2 (pt) | 2006-10-25 | 2007-10-25 | Material de embalagem laminado para alimentos, e, método para fabricar um material de embalagem laminado |
EP07827946A EP2077238A4 (en) | 2006-10-25 | 2007-10-25 | LAMINATED PAPER PACKING MATERIAL AND METHOD FOR PRODUCING THE SAME |
US12/446,694 US20100062269A1 (en) | 2006-10-25 | 2007-10-25 | Laminated paper package material and method of producing the same |
MX2009004183A MX2009004183A (es) | 2006-10-25 | 2007-10-25 | Material de empacado de papel laminado y metodo para su produccion. |
AU2007310354A AU2007310354A1 (en) | 2006-10-25 | 2007-10-25 | Laminated paper packaging material and method of producing the same |
CN2007800400695A CN101528559B (zh) | 2006-10-25 | 2007-10-25 | 层压纸包装材料及其制造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-290572 | 2006-10-25 | ||
JP2006290572A JP2008105709A (ja) | 2006-10-25 | 2006-10-25 | 紙積層包装材料及びその製造方法 |
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Publication Number | Publication Date |
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WO2008050486A1 true WO2008050486A1 (fr) | 2008-05-02 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2007/001167 WO2008050486A1 (fr) | 2006-10-25 | 2007-10-25 | Matériau de conditionnement en papier stratifié et son procédé de production |
Country Status (8)
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---|---|
US (1) | US20100062269A1 (ja) |
EP (1) | EP2077238A4 (ja) |
JP (1) | JP2008105709A (ja) |
CN (1) | CN101528559B (ja) |
AU (1) | AU2007310354A1 (ja) |
BR (1) | BRPI0718503A2 (ja) |
MX (1) | MX2009004183A (ja) |
WO (1) | WO2008050486A1 (ja) |
Families Citing this family (25)
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BRPI0919471A2 (pt) * | 2008-09-29 | 2015-12-01 | Basf Se | processo para revestimento de papel |
WO2012038976A2 (en) * | 2010-09-22 | 2012-03-29 | Champat Rikhabchand Sanghvi | Biocompostable paper polymer laminate and a method for preparation thereof |
US9040120B2 (en) | 2011-08-05 | 2015-05-26 | Frito-Lay North America, Inc. | Inorganic nanocoating primed organic film |
EP2790920A4 (en) * | 2011-12-15 | 2015-08-12 | Tipa Corp Ltd | BIODEGRADABLE FOIL |
US9267011B2 (en) | 2012-03-20 | 2016-02-23 | Frito-Lay North America, Inc. | Composition and method for making a cavitated bio-based film |
US9162421B2 (en) | 2012-04-25 | 2015-10-20 | Frito-Lay North America, Inc. | Film with compostable heat seal layer |
FI125255B (fi) | 2012-06-08 | 2015-08-14 | Upm Kymmene Corp | Menetelmä ja järjestelmä pakkausmateriaalin valmistamiseksi sekä pakkausmateriaali ja pakkaus |
CN104395493B (zh) | 2012-06-23 | 2017-08-25 | 福瑞托-雷北美有限公司 | 超薄无机氧化物涂层在包装上的沉积 |
US9149980B2 (en) | 2012-08-02 | 2015-10-06 | Frito-Lay North America, Inc. | Ultrasonic sealing of packages |
US9090021B2 (en) | 2012-08-02 | 2015-07-28 | Frito-Lay North America, Inc. | Ultrasonic sealing of packages |
US10829894B2 (en) | 2013-07-12 | 2020-11-10 | Cascades Sonoco Inc. | Foldable paper-based substrates coated with water-based coatings and process for coating foldable paper-based substrates |
CN103568430A (zh) * | 2013-10-21 | 2014-02-12 | 虞海盈 | 一种食品用层压包装材料的制造方法 |
CN103568436A (zh) * | 2013-10-21 | 2014-02-12 | 虞海盈 | 一种食品用包装材料 |
DK3119606T3 (da) * | 2014-03-17 | 2019-09-23 | Tetra Laval Holdings & Finance | Belægningssammensætning, trykt emballagelaminat, fremgangsmåde til fremstilling af emballagelaminatet og indpakningscontainer |
JP6626258B2 (ja) * | 2014-04-07 | 2019-12-25 | 昭和電工パッケージング株式会社 | ラミネート外装材の製造方法 |
JP6957838B2 (ja) | 2016-04-26 | 2021-11-02 | 大日本印刷株式会社 | ポリオレフィン樹脂層を備える積層体およびそれを備える包装製品 |
US11158540B2 (en) * | 2017-05-26 | 2021-10-26 | Applied Materials, Inc. | Light-absorbing mask for hybrid laser scribing and plasma etch wafer singulation process |
US11504952B2 (en) | 2017-10-04 | 2022-11-22 | Nippon Paper Industries Co., Ltd. | Barrier material |
KR102200771B1 (ko) * | 2019-01-25 | 2021-01-13 | 주식회사 스탠드팩 | 친환경 포장지 |
US20200340185A1 (en) * | 2019-04-23 | 2020-10-29 | Enviroluv Inc. | Waterproof paper bag and method of making same |
CN110387771A (zh) * | 2019-06-21 | 2019-10-29 | 周西 | 一种抗吸湿型高阻隔食品包装纸材料的制备方法 |
KR102374692B1 (ko) * | 2019-11-28 | 2022-03-15 | (주)유니팩 코리아 | 마스크팩용 친환경 포장재 및 이의 제조 방법 |
USD1037848S1 (en) | 2022-10-31 | 2024-08-06 | Avery Dennison Retail Information Services Llc | Garment bag |
WO2024149939A1 (en) * | 2023-01-10 | 2024-07-18 | Upm-Kymmene Corporation | Oxygen barrier material |
WO2024149938A1 (en) * | 2023-01-10 | 2024-07-18 | Upm-Kymmene Corporation | Oxygen barrier material |
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- 2007-10-25 BR BRPI0718503-0A2A patent/BRPI0718503A2/pt not_active IP Right Cessation
- 2007-10-25 WO PCT/JP2007/001167 patent/WO2008050486A1/ja active Application Filing
- 2007-10-25 US US12/446,694 patent/US20100062269A1/en not_active Abandoned
- 2007-10-25 EP EP07827946A patent/EP2077238A4/en not_active Withdrawn
- 2007-10-25 AU AU2007310354A patent/AU2007310354A1/en not_active Abandoned
- 2007-10-25 CN CN2007800400695A patent/CN101528559B/zh not_active Expired - Fee Related
- 2007-10-25 MX MX2009004183A patent/MX2009004183A/es unknown
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Also Published As
Publication number | Publication date |
---|---|
BRPI0718503A2 (pt) | 2013-12-03 |
CN101528559A (zh) | 2009-09-09 |
EP2077238A4 (en) | 2010-05-19 |
MX2009004183A (es) | 2009-04-30 |
EP2077238A1 (en) | 2009-07-08 |
CN101528559B (zh) | 2011-07-06 |
JP2008105709A (ja) | 2008-05-08 |
US20100062269A1 (en) | 2010-03-11 |
AU2007310354A1 (en) | 2008-05-02 |
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