CN1059388C - Laminate film and method of producing the same - Google Patents
Laminate film and method of producing the same Download PDFInfo
- Publication number
- CN1059388C CN1059388C CN94104842A CN94104842A CN1059388C CN 1059388 C CN1059388 C CN 1059388C CN 94104842 A CN94104842 A CN 94104842A CN 94104842 A CN94104842 A CN 94104842A CN 1059388 C CN1059388 C CN 1059388C
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- film
- press mold
- heat
- layer
- polyolefin
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- 239000005001 laminate film Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title description 31
- 229920005989 resin Polymers 0.000 claims abstract description 82
- 239000011347 resin Substances 0.000 claims abstract description 82
- 238000007740 vapor deposition Methods 0.000 claims abstract description 55
- 238000001125 extrusion Methods 0.000 claims abstract description 48
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 135
- 229920000098 polyolefin Polymers 0.000 claims description 49
- 239000004840 adhesive resin Substances 0.000 claims description 44
- 229920006223 adhesive resin Polymers 0.000 claims description 44
- 239000004743 Polypropylene Substances 0.000 claims description 43
- 229920001155 polypropylene Polymers 0.000 claims description 40
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 36
- -1 polypropylene Polymers 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 24
- 229920001971 elastomer Polymers 0.000 claims description 20
- 239000005030 aluminium foil Substances 0.000 claims description 18
- 239000000377 silicon dioxide Substances 0.000 claims description 18
- 229920001577 copolymer Polymers 0.000 claims description 11
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims description 9
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims description 9
- 239000000806 elastomer Substances 0.000 claims description 8
- 238000005984 hydrogenation reaction Methods 0.000 claims description 8
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 7
- 229920005672 polyolefin resin Polymers 0.000 claims description 7
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 210000004276 hyalin Anatomy 0.000 claims 36
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 10
- 229920000642 polymer Polymers 0.000 claims 5
- 229920002799 BoPET Polymers 0.000 claims 4
- 230000006866 deterioration Effects 0.000 claims 4
- 230000003301 hydrolyzing effect Effects 0.000 claims 4
- 229920000728 polyester Polymers 0.000 claims 4
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 150000001336 alkenes Chemical class 0.000 abstract description 4
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 abstract 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract 1
- 239000010408 film Substances 0.000 description 254
- 239000010410 layer Substances 0.000 description 142
- 229920006267 polyester film Polymers 0.000 description 44
- 238000001802 infusion Methods 0.000 description 13
- 238000001816 cooling Methods 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 238000003475 lamination Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 229920006026 co-polymeric resin Polymers 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000000862 absorption spectrum Methods 0.000 description 7
- 239000003978 infusion fluid Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 229920001903 high density polyethylene Polymers 0.000 description 6
- 239000004700 high-density polyethylene Substances 0.000 description 6
- 230000007062 hydrolysis Effects 0.000 description 6
- 238000006460 hydrolysis reaction Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 238000007731 hot pressing Methods 0.000 description 5
- 239000002417 nutraceutical Substances 0.000 description 5
- 235000021436 nutraceutical agent Nutrition 0.000 description 5
- 210000002469 basement membrane Anatomy 0.000 description 4
- 229920001038 ethylene copolymer Polymers 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 235000021485 packed food Nutrition 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 238000009928 pasteurization Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920005606 polypropylene copolymer Polymers 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000005025 cast polypropylene Substances 0.000 description 2
- 235000019628 coolness Nutrition 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 210000004379 membrane Anatomy 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- 206010001557 Albinism Diseases 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 235000016936 Dendrocalamus strictus Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons 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
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
- 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
- B32B27/08—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 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/02—Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls
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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
- B32B2255/20—Inorganic 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/514—Oriented
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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
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/24—Aluminium
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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
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
- B32B2323/046—LDPE, i.e. low density polyethylene
-
- 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
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
-
- 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
- B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
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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
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
Abstract
A laminate film having two olefin type films, a heat resistant film with a vapor deposition coat of aluminum oxide on each surface thereof and a heat adhesion resin layer for joining the olefin type films to the heat resistant film. Instead of the heat resistant film and the heat adhesion resin layer, an oriented film of ethylene-vinyl alcohol copolymer resin layer and a co-extrusion resin layer including a heat adhesion resin layer and an olefin type resin layer may be used. The heat adhesion resin layer is maintained in a heating state for a predetermined time when the laminate film is manufactured.
Description
The present invention relates to be used for laminated film and production method thereof that the infusion solution packing maybe can heat packed food (retort pouchfood) container etc.
Known so far, the container that is used for heating packed food should be to have strong impermeability, heat-resisting and low to the permeability of oxygen and water vapour container.But the conventional vessel that is used for heated food like this is made of the laminated film that comprises metal forming such as aluminium foil usually, because described container need have air-tightness and opacity simultaneously.Under special circumstances, can heat the container of packed food by the laminated film formation that comprises vacuum deposition (plating) film that is deposited with aluminium oxide or silica on it.Can heat in the conventional vessel of packed food at these, use urethane type adhesive to make adhesive for lamination.
On the other hand, known a kind of heatproof container for example splendid attire by the infusion solution of Japanese Pharmacopoeia appointment or to the supplement the nutrients infusion bag of nutraceutical (liquid) of usefulness of patient.In described heatproof container, must use transparent material to make packaging material to enable easily to confirm to sneak into the exogenous impurity in the content that is contained in the heatproof container.In addition, such heatproof container need have strong impermeability.The heatproof container that is used for nutraceutical heats by firing equipment such as electric furnace, nutraceutical is heated not opening under the situation of this container.
But, when the heatproof container that is used for nutraceutical is made of the laminated film with metal forming such as aluminium foil, because the microwave that the oscillator (generator) of electric furnace is produced reflected by described metal forming, thereby can not be with the nutraceutical heating that is contained in this container.
In addition, the heatproof container field being used for the specified infusion solution of Japanese Pharmacopoeia bans use of adhesive usually.Therefore, if heatproof container is made of the laminated film that has used urethane type adhesive, what then such container did not meet the Japanese Pharmacopoeia regulation is to obtain the standard of infusion solution with the extraction test of the ultra-violet absorption spectrum of plastic containers.
For solving such problem, recommended to use the heatproof container that constitutes by the vacuum deposition laminated film, described laminated film be included in successively one surface have the polyester film of the thin vacuum deposited film of aluminium oxide, all have on two surface aluminium oxide thin vacuum deposited film polyester film and be positioned at the cast polypropylene film of this inner surface of container, these films polypropylene layer that is modified is bonding mutually.
Described laminated film is transparent, so that can easily confirm to sneak into the exogenous impurity in the content that is contained in this heatproof container.In addition, such laminated film constitutes without urethane type adhesive, has not so just had the problem of adhesive.
Yet, have hydrolysising property owing to be positioned at the polyester film of described outside of containers, therefore described polyester film hydrolysis when immersing this container in the hot water.Therefore, such container do not meet the Japanese Pharmacopoeia defined for obtaining about the standard of infusion solution with the extraction test of the ultra-violet absorption spectrum of plastic containers.
In addition, polyester film has splendid heat resistance, but does not have enough antioxygen permeability.Cast polypropylene is harder, to increase the rigidity of such container.As a result, when described container was used as the container of drip solution, this container was not out of shape with the minimizing of content, so just is difficult to keep constant speed of this drip solution.
In addition, thermal adhesive resin such as modified polypropene are soluble in the hot water usually, reduce the extracted amount of this binder resin in hot water, must reduce the thickness of described thermal adhesive resin film.
If packaging bag by by constituting with the film formed laminated film of the bonding multilayer of adhesive, then such problem can occur: come the solvent of Autoadhesive and smell flavor can content attached to described packaging bag splendid attire on, thereby make the taste and the fragrance change of this content.
For solving such problem, advised using method without adhesive producing zone press mold.In such method, laminated film follows these steps to produce.At first, will engage with basement membrane to form complete laminated film, make this cooling of complete laminated film and curing with sharp cooling roll then, to form the temporary bonding film, then with the heating and cooling respectively of this film by T-mouth mould molten resin supplied film.
But this method needs temporary adhesion step, heating steps and cooling step, makes that this method is complicated.The temporary bonding film of making in described temporary adhesion step necessarily twists on the cylinder and by this cylinder and takes out.At this moment, a skim and another pull-up from and produce fold and reduce impervious.And, when this laminated film is made of polypropylene screen, be difficult to carry out by cooling step to heating steps quality control in time.
An object of the present invention is to provide a kind of laminated film, it has pliability, can reduce distortion with the content in the container of making by this laminated film, thereby can keep constant speed of described content, and meet the standard for the extraction test of the ultra-violet absorption spectrum that obtains the infusion solution container of Japanese Pharmacopoeia defined.
Another object of the present invention provides the method for producing zone press mold, wherein passes through the defective of the processability aspect of elimination thermal adhesive resin layer, each layer that forms laminated film in lamination process is not broken away from, to avoid producing fold on laminated film mutually.
According to first aspect of the present invention, a kind of laminated film is provided, it comprises multi-layer type nonaqueous separating property but olefines film with heat resistance, at least one deck heat-resistant film, vapor deposition layer and this film that two surfaces of this film all have aluminium oxide are placed between the described olefines film so that engage by thermal adhesive layer with this.
According to second aspect of the present invention, a kind of laminated film is provided, it comprises multi-layer type nonaqueous separating property but has the olefines film of heat resistance and one deck heat-resistant film at least, two surfaces of this heat-resistant film all have aluminium oxide vapor deposition layer, and this film is placed between the described olefines film so that be joined together by the co-extrusion pressure resin bed, and described co-extrusion pressure resin bed respectively comprises thermal adhesive resin layer and olefine kind resin layer.
In according to these laminated films aspect first and second of the present invention, describedly be deposited on the not hydrolysis in immersing hot water time of heat-resistant film in the middle of the olefines film, do not have the outer surface that water-disintegrable olefines film is placed in container because having hear resistance, and aluminium oxide vapor deposition layer is on each surface of this heat-resistant film.Therefore, described laminated film meets the standard of Japanese Pharmacopoeia defined for obtaining in the extraction test of infusion solution with the ultra-violet absorption spectrum of plastic containers.In addition, because the co-extrusion pressure resin bed of thermal adhesive resin layer and olefin resin layer is placed between the heat-resistant film and olefines film with aluminium oxide vapor deposition layer, this laminated film is transparent and has good anti-gas osmosising performance, and the container of being made by described laminated film has pliability, thereby can keep constant speed of content in the container.
The 3rd aspect of the present invention provides a kind of laminated film, it comprises multi-layer type nonaqueous separating property but olefines film with heat resistance, configuration one is that made by the vinyl-vinyl alcohol copolymer resin and all have an alignment films of vapor deposition layer on two surface between described film, so that be engaged on the described olefines film by the co-extrusion pressure resin bed, described resin bed respectively comprises thermal adhesive resin layer and olefine kind resin layer.
In such laminated film, no water-disintegrable but have heat resistance and at the olefines film of external container with at each lip-deep aluminium oxide illuvium of making and be placed in the alignment films between the described olefines film by the vinyl-vinyl alcohol copolymer resin, when immersing this container in hot water, can prevent described alignment films hydrolysis effectively.And, when can preventing this laminated film moisture absorption, reduces the aluminium oxide illuvium by transparency due to the albefaction of vinyl-vinyl alcohol copolymer resin.Therefore, described laminated film hardly moisture absorption to keep the antioxygen permeance property and to prevent to form in the container bubble.
The 4th aspect of the present invention provides a kind of laminated film, and it comprises having heat resistance but do not have water-disintegrable thin olefines film, aluminium foil, be placed in thermal adhesive resin layer, the thick olefines film between described olefines film and the aluminium foil and comprise thermal adhesive layer and the olefine kind resin layer is used for described aluminium foil is bonded to co-extrusion pressure resin bed on the described thick olefines film.
The 5th aspect of the present invention provides a kind of laminated film, and it comprises: two-layer each its each surface have the aluminium oxide illuvium heat-resistant film, have hear resistance but do not have water-disintegrable and be placed in described two relative heat-resistant film the outside the olefines film and be placed between described olefines film and the heat-resistant film and described two relative heat-resistant film between the thermal adhesive resin layer.
The 6th aspect of the present invention provides the method for prepared layer press mold, it may further comprise the steps: preparation has heat resistance but does not have water-disintegrable olefines film and at least aly all have the heat-resistant film of vapor deposition layer on its each surface, between described olefines film and heat-resistant film, melt extrude the thermal adhesive resin layer, keep heated condition to reach preset time on described thermal adhesive resin layer, with described thermal adhesive resin layer cooling and solidify and this heat-resistant film is bonded on the described olefines film.
The 7th aspect of the present invention provides the method for prepared layer press mold, and it may further comprise the steps: preparation has heat resistance but does not have water-disintegrable olefines film and at least aly all have the heat-resistant film of vapor deposition layer on its each surface; Melt extrude the co-extrusion pressure resin bed that comprises thermal adhesive resin layer and olefine kind resin layer between described olefines film and heat-resistant film, wherein said thermal adhesive resin layer is relative with heat-resistant film, and described olefine kind resin layer is relative with the olefines film; Keep heated condition to reach preset time described co-extrusion pressure resin bed, and with this co-extrusion pressure resin bed cooling and solidify and described heat-resistant film is bonded on the described olefines film.
In the method, when described co-extrusion pressure resin bed is bonded on the described olefines film, because after hot-extrudable it being kept heated condition to reach the scheduled time cools off then, thereby thereby each layer do not break away from mutually and prevent that fold from forming, and owing to the step that has reduced the producing zone press mold has improved productivity ratio.
The 8th aspect of the present invention provides the method for prepared layer press mold, and it may further comprise the steps: preparation has heat resistance but does not have water-disintegrable olefines film and at least a alignment films that all has the vinyl-vinyl alcohol copolymer resin of vapor deposition layer on its each surface; Melt extruding the co-extrusion pressure resin bed that comprises thermal adhesive resin layer and olefine kind resin layer under the following state between described olefines film and alignment films: wherein said thermal adhesive resin layer is relative with alignment films, and described olefine kind resin layer is relative with described olefines film; Keep heated condition to reach preset time described co-extrusion pressure resin bed, and with this co-extrusion pressure resin bed cooling and solidify and described heat-resistant film is bonded on the described olefines film.
The 9th aspect of the present invention provides the method for prepared layer press mold, wherein, comprise heat-resistant film and prepare: heated condition is retained to preset time, lamination step can be carried out and be shortened continuously by the hot as follows co-extrusion pressure of part layer press mold that resin bed and olefines film are bonded to the aluminium foil on the described heat-resistant film.Therefore improved productivity ratio.In addition, the bonding film of desire does not break away from mutually, can prevent that fold from forming.
Other purpose of the present invention, feature and others can also be fully understood with reference to the accompanying drawings by the detailed description of following the preferred embodiments of the invention.
In the accompanying drawings:
Fig. 1 is the generalized section of the laminated film of first embodiment of explanation the present invention;
Fig. 2 is the schematic diagram of first embodiment of producing zone press mold method;
Fig. 3 is to use the perspective view of the infusion bag of laminated film of the present invention;
Fig. 4 is the generalized section according to the laminated film of second embodiment of the present invention;
Fig. 5 is the schematic diagram according to second and the 3rd embodiment of producing zone press mold method of the present invention;
Fig. 6 is the schematic diagram according to second and the 3rd embodiment of producing zone press mold method of the present invention;
Fig. 7 is the generalized section according to the laminated film of the 3rd embodiment of the present invention;
But Fig. 8 is the generalized section of the laminated film that is used for the heat packs package material of the 4th embodiment;
Fig. 9 is the schematic diagram according to the 4th embodiment of the method for producing zone press mold of the present invention;
But Figure 10 is to use the perspective view of the heated food bag of the laminated film of producing by the inventive method; And
Figure 11 is the generalized section of laminated film of the present invention.
In Fig. 1, laminated film 1 of the present invention comprises two-layerly all having hear resistance but the water-disintegrable olefines film 15 of tool not, 15, heat-resistant film 10 (for example all has aluminium oxide vapor deposition layer 11 respectively on two surfaces, 11 polyester film) and two modified polypropene layers 12,12 (thermal adhesive layer), these two modified polypropene layers are positioned on two surfaces of heat-resistant film 10 as adhesive, between two olefines films 15,15 and heat-resistant film 10.Olefines film 15 comprises: the composition that mixes with polypropylene and ethylene copolymer of the rubber-type elastomer that obtains by hydrogenation for example.Measure the elastomeric amount of rubber-type so that Young's modulus is less than 30kg/mm
2, hot strength is greater than 100kg/cm
2Olefines film 15 can comprise the co-extrusion pressure resin bed of linear low density polyethylene (LLDPE) (L-LDPE) and polypropylene (PP).The thickness of polyester film 10 for example is 12 μ m, and each vapor deposition layer 11,11 that is positioned at two surfaces of polyester film 10 comprises that thickness is the amorphous state aluminium oxide of 200 , and it forms on polyester film 10 surfaces by conventional vapour deposition.Usually, conventional crystalline state aluminium oxide has the good transparency and anti-gas osmosising, but it can not keep anti-gas osmosising in container, because it is very little for the cohesive of basement membrane, and pliability is very poor.Therefore, the amorphous state aluminium oxide is preferred.Alumina layer 11 can comprise that greater than the amorphous state aluminium oxide of 98% (weight) wherein can comprise the component that is less than 10% (weight) approximately, it comprises metal, for example aluminium, copper, iron, zinc, molybdenum, chromium and tungsten, nitride, for example borazon and oxide, for example silica and zinc oxide.Can use the PETG (PET) or the vinyl-vinyl alcohol copolymer (EVOH) of orientation to replace polyester film 10.In addition, the polypropylene layer 12 of modification is maleic anhydride-modified resin, thick 5 μ m.The thickness of olefines film 15 changes as required.Under the infusion bag situation of using laminated film 1, the thickness of olefines film 15 is preferably 70 μ m.
Laminated film 1 (first embodiment of method) is as follows produced.
In Fig. 2, the device 100 of producing zone press mold 1 has a T-mouth mould 101 that is used to extrude modified polypropene 12, the Quench or the chill roll 102 that together turn round with rubber rollers 103, warm-up mill 104, with the deflector roll 105 that warm-up mill 104 together turns round, chill roll 107 and the deflector roll 108 that together turns round with chill roll 107.Prepare an olefines film 15 and polyester film 10 in advance, aluminium oxide vapor deposition layer 11 is arranged on each surface of 10.Supply with the polypropylene tunic 12 of modification from T-mouth mould 101, to be placed between polyester film 10 and the olefines film 15, by rubber rollers 103 and chill roll 102 laminations 10,12,15 3 kind of film, so that part layer press mold 1a (Fig. 1) to be provided, laminated film 1a comprises olefines film 15, modified polypropene layer 12 and polyester film 10.Then, part layer press mold 1a is heated 200 ℃ of temperature between warm-up mill 104 and deflector roll 105, keeping charging rate simultaneously is 40m/ minute, to prevent the reduction of anti-gas osmosising, with chill roll 107 part layer press mold 1a is cooled off then.After this, with part layer press mold 1a and the rest parts laminated film 1b that comprises another olefines film 15 and modified polypropene layer 12 lamination as stated above.In Fig. 2, do not use polyester film 10, but part layer press mold 1a is sent into, so that the polyester film 10 of film 1a is relative with modified polypropene film 12.
Modified polypropene film 12 is sent into from T-mouth mould 101 in about 300 ℃ of temperature.The fusing point of olefines film 15 is about 100-150 ℃, but the fusing point of polyester film 10 is much higher than the fusing point of polyester film 10.Quench or chill roll 102 are cooled to the temperature that is lower than olefines film 15 fusing points with part layer press mold 1a.Warm-up mill 104 is heated to 200 ℃ of temperature with film 1a, by modified polypropene layer 12 olefines film 15 is bonded on the polyester film 10 securely.Then, with chill roll 107 part layer press mold 1a is cooled to room temperature.With two part layer press mold 1a, when 1b is bonded to each other, roller 102,104,107 operates with the same manner separately.
Two ductile bed press molds 1,1 according to said method producing are sealed at its edge, to form the infusion bag 20 of transparency and heat-proof.For example, Fig. 3 is the perspective view that adopts the infusion bag 20 of laminated film 1 of the present invention, and two laminated films 1,1 are bonded together, and with conventional heat-sealing method heat-sealing opposite side 21,21 and base 22 and formation infusion bag 20.Bottom at bag 20 forms a conveying end 23, to take out the content in the bag 20.Bag 20 upper shed 24 with content for example nutrient solution join post heat-seal among the bag 20.
The olefines film 15 that is positioned at the outside of bag 20 can prevent because the change of the polyester film 10 that hydrolysis causes.Therefore, even bag 20 is immersed in the hot water, from the ultraviolet heat absorption spectrum that obtains, bag 20 is still to meet and extracts test standard.In addition, the combining of rigidity of pliability and polyester film 10 that is positioned at the olefines film 15 in bag 20 outsides makes bags 20 to have suitable hardness and suitable pliability generally.Therefore, with regard to infusion bag 20, its profile can change to keep constant drip velocity with the amount of dropping liquid content wherein.
Described heat-resisting bag is handled at 130 ℃ with hot pressing pasteurization (retort pasteurization) can be damaged in 30 minutes processes.The sack that confirmation contains content has good anti-drop intensity.
In the above-described embodiment, only used a kind of polyester film 10 that vapor deposition layer 11,11 is all arranged on two surfaces, yet, not only a kind of polyester film 10 can be used.In the case, these polyester films 10 engage by modified polypropene each other.When content has high acidity in bag, preferably with the silica vapor deposition on polyester film 10, form aluminium oxide vapor deposition layer then in the above.
Laminated film 1 can be used as ampuliform or other shape bag.
Can form silica vapor deposition layer and replace aluminium oxide vapor deposition layer.
Fig. 4 is the schematic diagram of second embodiment of laminated film of the present invention.Laminated film 110 comprises having hear resistance separately but do not have two water- disintegrable olefines films 15,15; Heat-resistant film for example has the polyester film 10 of aluminium oxide vapor deposition layer 11 on each surface, it is positioned between two olefines films 15,15; With two co-extrusion pressure resin beds 14,14, they are positioned at the both sides of polyester film 10 and respectively between polyester film 10 and two olefines films 15,15.
Co-extrusion pressure resin bed 14 comprises thermal adhesive resin layer 16 and olefine kind resin layer 13 (for example polypropylene, high density polyethylene (HDPE) (HDPE), high density polyethylene (HDPE)/linear low density polyethylene (LLDPE) (HDPE/LLDPE)).Thermal adhesive resin layer 16 comprises for example modified polypropylene resin layer, the about 5 μ m of its thickness.If necessary, can change the thickness of olefines film 15.Laminated film 110 can be used for infusion bag 20 (as shown in Figure 3).
The device 115 of producing zone press mold 110 comprises the T-mouth mould 111 that is used for co-extrusion pressure thermal adhesive resin layer 16 and olefine kind resin layer 13, be used at the warm-up mill 112 of temperature each layer heating, with the rubber rollers 103 that warm-up mill 112 together turns round, chill roll 107 and deflector roll 108.Warm-up mill 112 is corresponding to chill roll among Fig. 2 102 and warm-up mill 104.Be that warm-up mill 112 has dual-use function, in middle temperature 160-200 ℃ heating, and the co-extrusion pressure resin bed 14 that will send into about 190-300 ℃ temperature from T-mouth mould 111 is cooled to middle temperature with each film for it, and olefines film 15 can fusion under this temperature.Chill roll 107 is cooled to room temperature with each film.
To explain the method (second embodiment of method) of producing zone press mold 110 below.
At first, preparation all has polyester film 10 and two olefines films 15,15 of aluminium oxide vapor deposition layer 11 on each surface.With the feed arrangement (not shown) polyester film 10 and olefines film 15 are sent to space between rubber rollers 103 and the warm-up mill 112, so that alkene film 15 is in the face of the surface of warm-up mill 112, and polyester film 10 is in the face of rubber rollers 103.Simultaneously,, make olefine kind resin layer 13 relative, and thermal adhesive layer 16 is relative with polyester film 10, to form part layer press mold 110a, as shown in Figure 5 with olefines film 15 with 14 coextrusion of co-extrusion pressure resin bed (190-300 ℃ of temperature).Therefore, polyester film 10 and olefines film 15 are bonded to each other by co-extrusion pressure resin bed 14.Warm-up mill 112 is kept preset time promptly at 160 ℃-200 ℃ with heated condition, and warm-up mill remains on below the fusing point of olefines film 15 temperature, and is higher than the softening point of co-extrusion pressure resin bed.Holding time of heated condition for example is 0.5-1.5 second.Chill roll 107 is positioned at downstream one end of warm-up mill 112, and the polyester film 10 and 15 coolings (10 ℃-40 ℃) of olefines film that engage are also solidified to form part layer press mold 110a.
Then, by same apparatus as illustrated in Figures 5 and 6, make part layer press mold 110a and olefines film 15 bonding by means of co-extrusion press mold 14, described co-extrusion press mold 14 comprises thermal adhesive resin layer 16 and olefine kind resin layer 13.Be about to part layer press mold 110a and olefines film 15 and send into space between two rollers 102,103, make that part layer press mold 110a is relative with rubber rollers 102, and olefines film 15 is relative with warm-up mill 112 by the feed arrangement (not shown).Simultaneously, co-extrusion press mold 14 is sent between part layer press mold 110a and the olefines film 15 to form laminated film 110, make that wherein olefine kind resin layer 13 is relative with olefines film 15, and thermal adhesive resin layer 16 is relative with part layer press mold 110a, simultaneously, with laminated film 110 160 ℃-200 ℃ temperature maintenance 0.5-1.5 seconds.With chill roll 104 bonding laminated film 110 is cooled to 10 ℃ of-40 ℃ of temperature then.
Under the similarity condition, can replace with the configuration of Fig. 2 central roll 103,102,104,105,107,108 in the configuration of Fig. 5 and 6 central rolls 103,112,107,108.
The infusion bag 20 that the laminated film of according to said method producing 110 is used for Fig. 3.
In the case, the olefines film 15 that is positioned at bag 20 the outside can prevent because the change of the polyester film 10 that hydrolysis causes.Therefore, even bag 20 is immersed in the hot water, from the ultraviolet heat absorption spectrum that obtains, bag 20 is still to meet and extracts test standard.In addition, the combining of rigidity of pliability and polyester film 10 that is positioned at the olefines film 15 in bag 20 outsides makes bags 20 to have suitable hardness and suitable pliability generally.Therefore, with regard to infusion bag 20, its profile can change to keep constant drip velocity with the amount of dropping liquid content wherein.
Described heat-resisting bag is handled at 130 ℃ with the hot pressing pasteurization can be damaged in 30 minutes processes.Confirmed that the sack that contains content has good anti-drop intensity.
In the above-described embodiment, only used a kind of polyester film 10 that vapor deposition layer 11,11 is all arranged on two surfaces, yet, not only a kind of polyester film 10 can be used.In the case, these polyester films 10 engage by modified polypropene each other.When content has high acidity in bag, preferably with the silica vapor deposition on polyester film 10, form aluminium oxide vapor deposition layer then in the above.
Can form silica vapor deposition layer and replace aluminium oxide vapor deposition layer.
Fig. 7 is the generalized section of the 3rd embodiment of laminated film of the present invention.Laminated film 120 comprises having hear resistance but do not have two water-disintegrable olefines films 15, two surfaces all have the heat-resisting alignment films 200 of the vinyl-vinyl alcohol copolymer resin layer of aluminium oxide vapor deposition layer, with two co-extrusion pressure resin beds 14, this resin bed comprises thermal adhesive resin layer 16 and olefine kind resin layer 13, and lays respectively between two olefines films 15 and the alignment films 200.
Thermal adhesive resin layer 16 comprises for example modified polypropylene resin layer, and its thickness is about 5 μ m.Can change the thickness of olefines film 15 in case of necessity.Laminated film 120 can be suitable for infusion bag shown in Figure 3 20.
At first, make alignment films 200 and two olefines films 15,15 that the two sides all has aluminium oxide vapor deposition layer 11.With the feed arrangement (not shown) alignment films 200 and olefines film 15 are sent into space between rubber rollers 103 and the warm-up mill 112, make the surperficial relative of olefines film 15 and warm-up mill 112, and alignment films 200 is relative with rubber rollers 103.Simultaneously, coextrusion co-extrusion pressure resin bed 14 (temperature: 190-300 ℃) make olefine kind resin layer 13 relative with olefine kind resin film 15, and thermal adhesive layer 16 is relative with alignment films 200, forms part layer press mold 120a, as shown in Figure 7.Alignment films 200 and olefines film 15 are bonded together by co-extrusion pressure layer 14 like this.Warm-up mill 112 keeps heated condition in 160-200 ℃ within the predetermined time.The heated condition duration is 0.5-1.5 second for example.Chill roll 107 forms part layer press mold 120a with the olefines film 15 and alignment films 200 coolings (10 ℃-40 ℃) and the curing that engage.Then, with same equipment 115 shown in Figure 6 part layer press mold 120a is bonded on the rest parts laminated film 120b that comprises olefines film 15 and co-extrusion press mold 14.That is to say, part layer press mold 120a and olefines film 15 by the feed arrangement (not shown) in that olefines film 15 and warm-up mill 102 are relative and be admitted to 102,103 liang of spaces between the roller under the situation that alignment films 200 and rubber rollers are relative.Simultaneously, co-extrusion press mold 14 is sent between part layer press mold 120a and the olefines film 15, forms laminated film 120, and wherein olefine kind resin layer 13 is relative with olefines film 15, and thermal adhesive resin layer 16 is relative with part layer press mold 120a.At this moment, laminated film 120 is incubated 0.5-1.5 second at 160 ℃-200 ℃.Then, bonding laminated film 120 roller 104 that is cooled is cooled to 10 ℃-40 ℃.The laminated film 120 that makes like this is applicable to infusion bag shown in Figure 3.
In this case, the olefines film 15 that is positioned at bag 20 the outside can prevent that alignment films 200 from changing because of hydrolysis.Therefore, even if bag 20 is immersed in the hot water, bag 20 also meets for obtaining the standard of the extraction test that ultraviolet heat absorption spectrum carries out.In addition, the rigidity of pliability and alignment films 200 that is positioned at the olefines film 15 in bag 20 outsides combines and makes bags 20 to keep suitable stiffness and pliability generally.Therefore, for infusion bag 20, its profile can change with dropping liquid amount wherein, thereby keeps constant speed.
Has good antioxygen permeability when in general, the alignment films of vinyl-vinyl alcohol copolymer resin is dry.But when it was humidity, albinism also appearred in its antioxygen permeability reduction.On the contrary, in laminated film 120 of the present invention, the transparency does not reduce because of albefaction, thereby even after the hot pressing pasteurized process, can see the exogenous impurity of bag in 20 by laminated film 120 yet.
150 ℃ of hot pressing pasteurized process during 60 minutes this heat-resisting bag not damaged.Confirmed that the sack that content is housed has good anti-drop intensity.
In the above-described embodiment, only use a kind of two sides that the film 200 of aluminium oxide vapor deposition layer 11,11 is all arranged, but can use more than a kind of alignment films 200.In this case, these alignment films 200 polypropylene that is modified engages one another.If the bag in content be highly acid, preferably with the silica vapor deposition on alignment films 200, form aluminium oxide vapor deposition layer subsequently thereon, to prevent the reduction of permeability resistance.
Can not form aluminium oxide vapor deposition layer and form silica vapor deposition layer.
In the above-described embodiment, the olefine kind resin layer 12 of co-extrusion pressure resin bed 14 has remedied the defective of the machinability aspect of thermal adhesive resin layer 16.In addition, in the 3rd embodiment, the vapor deposition layer 11,11 of vinyl-vinyl alcohol copolymer resin alignment films 200 can avoid alignment films 200 to absorb too many wet steam, has so just kept good antioxygen permeability.
Fig. 8 is the profile of the laminated film of the 4th embodiment of the present invention.
But laminated film 130 is suitable for the packing material as heated food or cooking material.Laminated film 130 comprises that thickness is 15 the having hear resistance of μ m and do not have the olefines film (polyester film) 15 of pyrohydrolysis; Thickness is the thermal adhesive resin layer 16 of 15 μ m, and it is near olefines film 15; Thickness is the aluminium foil 17 of 9 μ m, and it is near thermal adhesive resin layer 16; Comprise the co-extrusion pressure resin bed 14 of thermal adhesive resin layer 16 and olefine kind resin layer 13, it is near aluminium foil 17; With thickness be the olefines film (polypropylene cast membrane) of 50 μ m, it is near co-extrusion pressure resin bed 14.Olefines film 18 bebeerilene hydrocarbon membranes 15 are much thick.That is to say, laminated film 130 comprises and comprises olefines film 15, aluminium foil 17 and be used for part layer press mold 19 with olefines film 15 and aluminium foil 17 coherent thermal adhesive resin layers 16, the co-extrusion pressure resin bed 14 that olefines film 18 and being used for is bonded together part layer press mold 19 and olefines film 18.
At first, with equipment shown in Figure 2 100 fabrication portion laminated films 19, this equipment has the T-mouth mould 101 of extrusion molding monofilm.Promptly the thermal adhesive resin layer of olefines film 15 and aluminium foil 17 usefulness being extruded from T-mouth mould 101 by chill roll 102, warm-up mill 104 and chill roll 107 16 sticks together.At this moment, also made olefines film 18.Then, as shown in Figure 9, part layer press mold 19 and olefines film 18 are sent between the rubber rollers 103 and warm-up mill 112 below T-mouth mould 111 by another feed apparatus (not shown), wherein olefines film 18 is relative with 160-200 ℃ warm-up mill 112, and part layer press mold 19 is relative with rubber rollers 103.For part layer press mold 19, olefines film 15 is relative with rubber rollers 103, and aluminium foil 17 the thermal adhesive resin layer 16 of extrusion resin layer 14 is relative together.Simultaneously, co-extrusion pressure resin bed 14 is being sent under 190-300 ℃ between part layer press mold 19 and the olefines film 18, wherein thermal adhesive resin layer 16 is relative with the aluminium foil 17 of part layer press mold 19, and olefine kind resin layer 13 is relative to coextrusion part layer press mold 19, co-extrusion pressure resin bed 14 and olefines film 18 with olefines film 18.Warm-up mill 112 is incubated preset time with articulate three films 14,18,19 in 160-200 ℃.The scheduled time is 0.5-1.5 second.Chill roll 104 is cooled to 10-40 ℃ with laminated film 130 and makes it to solidify.
But when using laminated film 130 to make heated food bag 30 (Figure 10), two laminated films 33 are stacked togather, it is sealed with hot sealing device respectively edge and lower limb.Its content is put into bag 30 from opening 33, and subsequently with opening 33 heat-sealing, during the hot pressing pasteurized process, bag 30 is not damaged and show good anti-drop strength character to the floor.
In this embodiment, keep heated condition to reach the scheduled time co-extrusion pressure resin bed 14, make it cooling curing then part layer press mold and olefines film 18 are sticked together.Lamination process is carried out continuously, and the shortening process is also boosted productivity.In addition, the film of desiring lamination does not break away from mutually, has avoided the generation of the fold of laminated film 130, and because olefine kind resin layer 13 has remedied the defective of the machinability aspect that is produced by thermal adhesive resin layer 16, the bonding strength of each film has all increased.
Figure 11 shows the generalized section of the lamination mould of the 5th embodiment of the present invention.Laminated film 140 comprises two-layer olefines film 141,141; Two-layer pet resin layer (heat-pesistant thin film) 142,142, they and all have aluminium oxide vapor deposition layer 11 on the two sides of each heat-pesistant thin film 142 between olefines film 141; With three be used for bonding adjacent two-layer adhesive phase 12,12,12.
Each olefines film 141 comprises for example a kind of composition, and the polyolefin of wherein using single-point catalyst (single site catalyst) (metallocene) to make is sneaked in polypropylene and the ethylene copolymer.The Young's modulus of olefines film is lower than 30kg/mm
2, hot strength is greater than 100kg/cm
2
Claims (45)
1. transparent laminated film, it comprises:
A) at least one heat-resistant film that make by hydrolytic resin or moist deterioration resin and that aluminium oxide or silica vapor deposition layer are all arranged on two surfaces;
B) have hear resistance and do not have water-disintegrable and be positioned at the polyolefin film of described heat-resistant film both sides; With
C) lay respectively at thermal adhesive resin layer between described polyolefin film and the heat-resistant film, be used for described polyolefin film and heat-resistant film are bonded together.
2. according to the hyaline layer press mold of claim 1, wherein the Young's modulus of each polyolefin film is less than 30kg/mm
2, and hot strength is greater than 100kg/cm
2
3. according to the hyaline layer press mold of claim 1, wherein each polyolefin film comprises a kind of composition, and the rubber-type elastomer that hydrogenation of polymer obtains in the described composition is sneaked in the copolymer of polypropylene and ethene.
4. according to the hyaline layer press mold of claim 1, wherein each polyolefin film comprises a kind of composition, and the polyolefin that obtains with single-point catalyst in the described composition is sneaked in the copolymer of polypropylene and ethene.
5. according to the hyaline layer press mold of claim 1, wherein each polyolefin film comprises linear low density polyethylene (LLDPE) and polyacrylic co-extrusion pressure resin bed.
6. according to the hyaline layer press mold of claim 1, wherein heat-resistant film comprises polyester or EVOH.
7. according to the hyaline layer press mold of claim 6, wherein heat-resistant film comprises orientation PET film or orientation EVOH film.
8. according to the hyaline layer press mold of claim 1, wherein the thermal adhesive resin layer comprises modified polypropene.
9. according to the hyaline layer press mold of claim 1, wherein the vapor deposition layer is formed at directly on the silica vapor deposition film that forms on the heat-resistant film.
10. according to the hyaline layer press mold of claim 1, wherein the vapor deposition layer comprises the vapor deposition layer of aluminium oxide.
11. a transparent laminated film, it comprises:
A) at least one heat-resistant film, this film be make by hydrolytic resin or moist deterioration resin and on each surface, all have aluminium oxide or a silica vapor deposition layer;
B) polyolefin film, this film have hear resistance and do not have water-disintegrablely, and are positioned at the both sides of described heat-resistant film; With
C) co-extrusion pressure resin bed, this layer comprises thermal adhesive resin layer and polyolefin resin layer and lays respectively between described polyolefin film and the heat-resistant film, be used for described polyolefin film is combined on the heat-resistant film, described thermal adhesive resin layer is relative with described heat-resistant film, and described polyolefin resin layer is relative with polyolefin film.
12. according to the hyaline layer press mold of claim 11, wherein the Young's modulus of each polyolefin film is less than 30kg/mm
2, and hot strength is greater than 100kg/cm
2
13. according to the hyaline layer pressure-off of claim 11 wherein each polyolefin film comprise a kind of composition, the rubber-type elastomer that hydrogenation of polymer obtains in the described composition is sneaked in the copolymer of polypropylene and ethene.
14. according to the hyaline layer press mold of claim 11, wherein each polyolefin film comprises a kind of composition, the polyolefin that obtains with single-point catalyst in the described composition is sneaked in the copolymer of polypropylene and ethene.
15. according to the hyaline layer press mold of claim 11, wherein each polyolefin film comprises linear low density polyethylene (LLDPE) and polyacrylic co-extrusion pressure resin bed.
16. according to the hyaline layer press mold of claim 11, wherein heat-resistant film comprises polyester or EVOH.
17. according to the hyaline layer press mold of claim 16, wherein heat-resistant film comprises orientation PET film or orientation EVOH film.
18. according to the hyaline layer press mold of claim 11, wherein the thermal adhesive resin layer comprises the modified polypropene layer.
19. according to the hyaline layer press mold of claim 11, wherein the vapor deposition layer is formed at directly on the silica vapor deposition film that forms on the heat-resistant film.
20. according to the hyaline layer press mold of claim 11, wherein the vapor deposition layer comprises the vapor deposition layer of aluminium oxide.
21. a transparent laminated film, it comprises:
A) two heat-resistant film, their each free hydrolytic resins or moist deterioration resin are made and all have aluminium oxide or a silica vapor deposition layer on each surfaces;
B) have hear resistance and do not have water-disintegrable and be positioned at the polyolefin film in the two heat-resistant film outside opposite one another; With
C) lay respectively between polyolefin film and the heat-resistant film and two opposed heat-resistant film between the thermal adhesive resin layer.
22. according to the hyaline layer press mold of claim 21, wherein the Young's modulus of each polyolefin film is less than 30kg/mm
2, and hot strength is greater than 100kg/cm
2
23. according to the hyaline layer press mold of claim 21, wherein each polyolefin film comprises a kind of composition, the rubber-type elastomer that hydrogenation of polymer obtains in the described composition is sneaked in the copolymer of polypropylene and ethene.
24. according to the hyaline layer press mold of claim 21, wherein each polyolefin film comprises a kind of composition, the polyolefin that obtains with single-point catalyst in the described composition is sneaked in the copolymer of polypropylene and ethene.
25. according to the hyaline layer press mold of claim 21, wherein each polyolefin film comprises linear low density polyethylene (LLDPE) and polyacrylic co-extrusion pressure resin bed.
26. according to the hyaline layer press mold of claim 21, wherein heat-resistant film comprises polyester or EVOH.
27. according to the hyaline layer press mold of claim 26, wherein heat-resistant film comprises orientation PET film or orientation EVOH film.
28. according to the hyaline layer press mold of claim 21, wherein the thermal adhesive resin layer comprises modified polypropene.
29. according to the hyaline layer press mold of claim 21, wherein the vapor deposition layer is formed at directly on the silica vapor deposition film that forms on the heat-resistant film.
30. according to the hyaline layer press mold of claim 21, wherein the vapor deposition layer comprises the vapor deposition layer of aluminium oxide.
31. a transparent laminated film, it comprises:
A) two heat-resistant film, their each free hydrolytic resins or moist deterioration resin are made and all have aluminium oxide or a silica vapor deposition layer on each surfaces;
B) have hear resistance and do not have water-disintegrable and be positioned at the polyolefin film in the two heat-resistant film outside opposite one another;
C) co-extrusion pressure resin bed, this layer comprises thermal adhesive resin layer and polyolefin resin layer and lays respectively between described polyolefin film and the heat-resistant film, be used for described polyolefin film is combined on the heat-resistant film, described thermal adhesive resin layer is relative with described heat-resistant film, and described polyolefin resin layer is relative with polyolefin film; With
D) the thermal adhesive resin layer between two opposed heat-resistant film.
32. according to the hyaline layer press mold of claim 31, wherein the Young's modulus of each polyolefin film is less than 30kg/mm
2, and hot strength is greater than 100kg/cm
2
33. according to the hyaline layer press mold of claim 31, wherein each polyolefin film comprises a kind of composition, the rubber-type elastomer that hydrogenation of polymer obtains in the described composition is sneaked in the copolymer of polypropylene and ethene.
34. according to the hyaline layer press mold of claim 31, wherein each polyolefin film comprises a kind of composition, the polyolefin that obtains with single-point catalyst in the described composition is sneaked in the copolymer of polypropylene and ethene.
35. according to the hyaline layer press mold of claim 31, wherein each polyolefin film comprises linear low density polyethylene (LLDPE) and polyacrylic co-extrusion pressure resin bed.
36. according to the hyaline layer press mold of claim 31, wherein heat-resistant film comprises polyester or EVOH.
37. according to the hyaline layer press mold of claim 36, wherein heat-resistant film comprises orientation PET film or orientation EVOH film.
38. according to the hyaline layer press mold of claim 31, wherein the thermal adhesive resin layer comprises modified polypropene.
39. according to the hyaline layer press mold of claim 31, wherein the vapor deposition layer is formed at directly on the silica vapor deposition film that forms on the heat-resistant film.
40. according to the hyaline layer press mold of claim 31, wherein the vapor deposition layer comprises the vapor deposition layer of aluminium oxide.
41. a laminated film, it comprises:
A) have hear resistance but do not have water-disintegrable thin polyolefin film;
B) aluminium foil;
C) the modified polypropene layer between described book polyolefin film and aluminium foil as the thermal adhesive resin layer;
D) thick polyolefin film; With
E) comprise the polypropylene layer of modification and the co-extrusion pressure resin bed of polyolefin resin layer, be used for described aluminium foil and thick polyolefin film are bonded together, described co-extrusion pressure resin bed so that the modified polypropene layer is relative with aluminium foil, and makes polyolefin resin layer relative with thick polyolefin film between aluminium foil and thick polyolefin film.
42. according to the laminated film of claim 41, the Young's modulus of wherein said book polyolefin film and described thick polyolefin film is less than 30kg/mm
2, and hot strength is greater than 100kg/cm
2
43. according to the laminated film of claim 41, wherein said book polyolefin film and described thick polyolefin film comprise a kind of composition separately, the rubber-type elastomer that hydrogenation of polymer obtains in the described composition is sneaked in the copolymer of polypropylene and ethene.
44. according to the laminated film of claim 41, wherein said book polyolefin film and described thick polyolefin film respectively comprise a kind of composition, the polyolefin that obtains with single-point catalyst in the described composition is sneaked in the copolymer of polypropylene and ethene.
45. according to the laminated film of claim 41, wherein said book polyolefin film and described thick polyolefin film comprise linear low density polyethylene (LLDPE) and polyacrylic co-extrusion pressure resin bed separately.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP102933/93 | 1993-04-28 | ||
| JP05102933A JP3126547B2 (en) | 1993-04-28 | 1993-04-28 | Manufacturing method of retort packaging material |
| JP102933/1993 | 1993-04-28 | ||
| JP239588/1993 | 1993-09-27 | ||
| JP239588/93 | 1993-09-27 | ||
| JP05239588A JP3100274B2 (en) | 1993-09-27 | 1993-09-27 | Evaporated laminated film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1095990A CN1095990A (en) | 1994-12-07 |
| CN1059388C true CN1059388C (en) | 2000-12-13 |
Family
ID=26443619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94104842A Expired - Fee Related CN1059388C (en) | 1993-04-28 | 1994-04-28 | Laminate film and method of producing the same |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN1059388C (en) |
| FR (1) | FR2704480B1 (en) |
| GB (1) | GB2277481B (en) |
| IT (1) | IT1272221B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1977112B (en) * | 2004-07-01 | 2012-10-10 | 伊利诺斯器械工程公司 | Composite comprising chemical anchoring adhesive and wrapped material |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20218099U1 (en) * | 2002-11-22 | 2003-02-27 | Bischof & Klein | Sack for the transport of moisture-sensitive goods |
| EP1466725A1 (en) * | 2003-04-11 | 2004-10-13 | Amcor Flexibles Europe A/S | Transparent retort-stable high barrier laminates |
| JP4861968B2 (en) * | 2007-11-30 | 2012-01-25 | 住友化学株式会社 | Manufacturing method of polarizing plate |
| WO2009144285A1 (en) * | 2008-05-29 | 2009-12-03 | Hydrus B.V. | A method of manufacturing a bag and a bag |
| CN102625749B (en) * | 2009-09-14 | 2014-11-26 | 阿科布兰兹公司 | Laminating material and method of manufacturing |
| CN103407140B (en) * | 2013-07-26 | 2015-07-01 | 常州大学 | Preparation method for PP/PE/PE three-layer compound microporous film |
| NL2016022B1 (en) * | 2015-12-23 | 2017-07-05 | Horeman Jelle | Packaging. |
| CN106117527B (en) * | 2016-06-17 | 2019-02-15 | 苍南县宝丰印业有限公司 | A kind of high barrier PET/PP film |
| EP3606666A1 (en) * | 2017-04-03 | 2020-02-12 | Radiometer Medical ApS | A bag containing a reference fluid |
| US11440298B2 (en) * | 2017-06-28 | 2022-09-13 | Scholle Ipn Corporation | Pouch and film for a pouch |
| CN107458736A (en) * | 2017-08-31 | 2017-12-12 | 重庆市永川区天堂化工厂 | The packaging bag of chemical fertilizer granule anti-caking |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1426124A (en) * | 1974-06-21 | 1976-02-25 | Victor Metal Products Inc | Laminated material |
| US4258848A (en) * | 1978-07-28 | 1981-03-31 | Fuji Photo Film Co., Ltd. | Packaging material for photosensitive materials comprising polyolefin layers |
| EP0203612A2 (en) * | 1985-05-31 | 1986-12-03 | Unilever N.V. | Composite film |
| CN1032764A (en) * | 1987-10-15 | 1989-05-10 | 金属箱公共有限公司 | The laminate of polyolefine thin film and metal and production method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2430308A1 (en) * | 1978-07-05 | 1980-02-01 | Toyo Seikan Kaisha Ltd | STERILIZABLE LAMINATE VESSEL AND METHOD FOR MANUFACTURING THE LAMINATE |
| JPS63186652A (en) * | 1987-01-29 | 1988-08-02 | 味の素株式会社 | Liquid agent for drug received in bag |
| GB8726202D0 (en) * | 1987-11-09 | 1987-12-16 | Exxon Chemical Patents Inc | Coating of substrates |
| JPH0833618B2 (en) * | 1988-12-05 | 1996-03-29 | 富士写真フイルム株式会社 | Packaging material for photosensitive materials |
| US5756171A (en) * | 1992-12-22 | 1998-05-26 | Kabushiki Kaisha Hosokawa Yoko | Laminate film and method of producing the same |
-
1994
- 1994-04-26 FR FR9405016A patent/FR2704480B1/en not_active Expired - Fee Related
- 1994-04-28 IT ITRM940249A patent/IT1272221B/en active IP Right Grant
- 1994-04-28 CN CN94104842A patent/CN1059388C/en not_active Expired - Fee Related
- 1994-04-28 GB GB9408443A patent/GB2277481B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1426124A (en) * | 1974-06-21 | 1976-02-25 | Victor Metal Products Inc | Laminated material |
| US4258848A (en) * | 1978-07-28 | 1981-03-31 | Fuji Photo Film Co., Ltd. | Packaging material for photosensitive materials comprising polyolefin layers |
| EP0203612A2 (en) * | 1985-05-31 | 1986-12-03 | Unilever N.V. | Composite film |
| CN1032764A (en) * | 1987-10-15 | 1989-05-10 | 金属箱公共有限公司 | The laminate of polyolefine thin film and metal and production method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1977112B (en) * | 2004-07-01 | 2012-10-10 | 伊利诺斯器械工程公司 | Composite comprising chemical anchoring adhesive and wrapped material |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2277481A (en) | 1994-11-02 |
| GB9408443D0 (en) | 1994-06-22 |
| ITRM940249A1 (en) | 1995-10-28 |
| ITRM940249A0 (en) | 1994-04-28 |
| FR2704480A1 (en) | 1994-11-04 |
| CN1095990A (en) | 1994-12-07 |
| GB2277481B (en) | 1996-11-13 |
| FR2704480B1 (en) | 1996-02-02 |
| IT1272221B (en) | 1997-06-16 |
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