CN100460203C - High temperature cooking easy peel film - Google Patents
High temperature cooking easy peel film Download PDFInfo
- Publication number
- CN100460203C CN100460203C CNB2005101013118A CN200510101311A CN100460203C CN 100460203 C CN100460203 C CN 100460203C CN B2005101013118 A CNB2005101013118 A CN B2005101013118A CN 200510101311 A CN200510101311 A CN 200510101311A CN 100460203 C CN100460203 C CN 100460203C
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- Prior art keywords
- film
- temperature steaming
- high temperature
- layer
- product
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- 238000010411 cooking Methods 0.000 title claims 4
- 239000004743 Polypropylene Substances 0.000 claims abstract description 32
- 229920001155 polypropylene Polymers 0.000 claims abstract description 32
- -1 polypropylene Polymers 0.000 claims abstract description 16
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 10
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 9
- 238000001125 extrusion Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000010025 steaming Methods 0.000 abstract description 20
- 235000013305 food Nutrition 0.000 abstract description 19
- 235000015110 jellies Nutrition 0.000 abstract description 15
- 239000008274 jelly Substances 0.000 abstract description 15
- 238000007789 sealing Methods 0.000 abstract description 10
- 230000001954 sterilising effect Effects 0.000 abstract description 9
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 8
- 229920001577 copolymer Polymers 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004806 packaging method and process Methods 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 2
- 239000002861 polymer material Substances 0.000 abstract 2
- 239000008187 granular material Substances 0.000 abstract 1
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 231100000614 poison Toxicity 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000003440 toxic substance Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 21
- 239000012528 membrane Substances 0.000 description 19
- 238000005516 engineering process Methods 0.000 description 13
- 239000010408 film Substances 0.000 description 10
- 239000002131 composite material Substances 0.000 description 8
- 241001232787 Epiphragma Species 0.000 description 7
- 238000007664 blowing Methods 0.000 description 5
- 229920006280 packaging film Polymers 0.000 description 5
- 239000012785 packaging film Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000029087 digestion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 241000235342 Saccharomycetes Species 0.000 description 1
- MSAVICZWFPQFPO-UHFFFAOYSA-N acetic acid;ethene Chemical group C=C.C=C.CC(O)=O MSAVICZWFPQFPO-UHFFFAOYSA-N 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000005452 food preservative Substances 0.000 description 1
- 235000019249 food preservative Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000009928 pasteurization Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005556 structure-activity relationship Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
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- Laminated Bodies (AREA)
- Wrappers (AREA)
- Packages (AREA)
Abstract
The high temperature steaming easily stripped film is compounded and extruded with three layers of polymer material, including outer layer of modified polypropylene, middle layer of multicomponent copolymer polypropylene and inner layer of ethylene-vinyl acetate copolymer. All the adopted nonpolar high polymer materials have no educts, have good biological inertia and no toxicity, and are used for food packaging; the sterilization temperature can reach 121 ℃ for 30 minutes without deformation, the application range is wide, the stored jelly or soft can is ensured not to be rotten and deteriorated, and the aseptic requirement is met0> 8); the high-temperature steaming easily-peelable film has good heat sealability and reliable sealing property, and can be quickly sealed and easily peeled; the production process of the high-temperature steaming easily-peelable film is carried out in hundred-level laminar flow purification environment from original granules to film making and slitting, so that the sanitation of the product is ensured to the maximum extentPerformance; the high-temperature steaming easily-peelable film product does not generate toxic substances in the production, use and recovery processes, is pollution-free and belongs to an environment-friendly product; the storage period of the multilayer co-extrusion transfusion film or soft bag is three years.
Description
[technical field]
The present invention relates to a kind of Hot capping film and film for packaging that is used to pack various jelly and foods packed in carton containers.
[background technology]
The high temperature steaming strippable membrane main application is to be used for the epiphragma of jelly and the packaging film of foods packed in carton containers, this film mainly is to supply with packing color printing factory, packing color printing factory according to jelly factory and food factory's instructions for use carry out compound, make jelly epiphragma and foods packed in carton containers packaging film end product after cutting, printing.Jelly epiphragma and foods packed in carton containers packaging film major part that present domestic jelly factory and food factory use are plain polypropylene, polyester, composite membrane such as nylon and polyethylene, all adopting the pasteurization technology after these films packing jelly and the food is low temperature distillation (70～90 ℃ 30 minutes), sterilizing methods under this temperature can only kill all pathogenic bacteria, can not kill mould, bacterium such as saccharomycete, and can make when raising sterilising temp softer bag or epiphragma produce distortion, so producer is rotten in order to prevent jelly and food decay, all added food preservative, anticorrisive agent is edible for a long time to have influence to a certain degree to health (particularly children's is healthy).For this reason, State Food and Drug Administration proposes the requirement of cancellation anticorrisive agent, in order to reach the purpose of thorough sterilization and long preservation, needs 121 ℃ of sterilization technology requirements in 30 minutes of utilization.Jelly epiphragma and foods packed in carton containers packaging film that China adopts at present all can not satisfy 121 ℃ of sterilization technology requirements in 30 minutes.So must be at present everybody used jelly epiphragma and foods packed in carton containers packaging film improve.
[summary of the invention]
The objective of the invention is, be to overcome the deficiencies in the prior art, provide a kind of and had that compatibility is good, good, anti-121 ℃ of 30 minutes thermophilic digestions of transparency, Hot sealing strength height, sealing property reliably, the multi-layer co-extruded high temperature steaming strippable membrane easily peeled off.
In order to solve the technical problem of above-mentioned existence, the present invention adopts following technical proposals:
A kind of high temperature steaming strippable membrane is characterized in that being composited by three floor height molecular materials, is the outer modified polypropene that is successively, and the intermediate layer is that multi-component copolymer polypropylene and internal layer are ethylene-vinyl acetate copolymer.
Aforesaid a kind of high temperature steaming strippable membrane is characterized in that: described modified polypropene is the metallocene modified polypropylene.
Aforesaid a kind of high temperature steaming strippable membrane is characterized in that: described modified polypropene accounts for 15-25%, and this multi-component copolymer polypropylene accounts for 55-65% and this ethylene-vinyl acetate copolymer accounts for 15-25%.
Compared with prior art, the invention has the beneficial effects as follows: 1. the high temperature steaming strippable membrane prescription all adopts non-polar polymeric material, does not have precipitate, and it is nontoxic to have a good biologically inert, is to be used for packaging for foodstuff; 2. sterilisation temp can reach 121 ℃ 30 minutes, do not produce distortion, the scope of application is extensive, guarantees to store jelly or foods packed in carton containers and does not addle rottenly, reaches aseptic requirement (F0〉8); 3. high temperature steaming strippable membrane Hot envelope property is good, and sealing property is reliable, and the Hot envelope is easily peeled off again fast; 4. the production process of high temperature steaming strippable membrane to making film, cutting, all carry out, has guaranteed the sanitation performance of product from raw pellets to greatest extent in hundred grades of clean by laminar flow environment; 5. the high temperature steaming strippable membrane product does not produce noxious material in producing the use removal process, and is pollution-free, belongs to environment-friendly products; 6. multilayer co-squeeze film for transfusion or soft bag storage life are 3 years.
The present invention is described in further detail below in conjunction with accompanying drawing and the specific embodiment:
[description of drawings]
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a process chart of the present invention.
[specific embodiment]
The present invention is a kind of high temperature steaming strippable membrane, is composited by three floor height molecular materials, is the outer modified polypropene (PP) 1 that is successively, and it is the thermal synthesis layer of high strength, high transparent high temperature resistant; The intermediate layer is a multi-component copolymer polypropylene (PP) 2, and it is the enhancement layer of toughening functions and adhesive function and heat sealing strength; Internal layer is an ethylene-vinyl acetate copolymer 3, and it is an easy peel ply high temperature resistant, stable chemical performance.When the food of packing jelly or foods packed in carton containers class, internal layer of the present invention is 3 layers of ethylene-vinyl acetate copolymers and the Food Contact of packaging, like this when taking-up food, and just can be easily with this stripping film and food separation.It is to adopt state-of-the-art in the world modified polypropene (PP) macromolecular material and the ethene-acetate ethylene copolymer that meets the sanitation performance standard, through blending and modifying, adopt three extruders and the compound blowing head of superposing type, make by composite co-extruding vanguard technology and technology with heat insulating function.
As one of this bright embodiment, modified polypropene (PP) 1 can be the metallocene modified polypropylene.
Principle of the present invention and structure are: on the basis of the multiple macromolecular material character of choose reasonable, specification requirement according to high temperature steaming strippable membrane, according to the close compatibility principle of macromolecular material and the structure-activity relationship of macromolecular material, respectively it is carried out modification and composite molding, study of the influence of high molecular melt crystallization speed to the aggregated structure of material, design and synthesize the agent of nontoxic multifunctional macromolecule material modification and the nucleator that are fit to this project, improve the bonding force between laminated film transparency and pliability and layer and the layer.Composite principle according to multilayer complex films, give full play to the advantage of each layer film, prepare combination property and function of use and all have the incomparable composite membrane of single thin film, composite forming technology solves the resistance to elevated temperatures of final products emphatically, the thermophilic digestion performance, product heat sealing strength and solve easy stripping performance.Structure function of the present invention is designed to: the top layer is to have good compatibility, can be good at being combined with each other with functional layer, printed layers.The intermediate layer provides good hot weld envelope effect, and the combined strength bination of the adhesive function raising composite membrane between layer and the layer is provided.Internal layer is the easy peel ply of stable chemical performance, and this layer has stable chemical properties, does not have precipitate, and any reaction takes place discord food, and can providing reliably simultaneously, sealing property can reach easy stripping performance again.In order to form multilayer intersection composite construction effectively, be to adopt each runner reasonable in design that the compound blowing head of superposing type of thermal insulation barrier layer is all arranged on equipment, and the advanced molding technology thereof of employing downward-blowing water-cooling, make the high temperature steaming strippable membrane of producing have high temperature resistant 121 ℃ of 30 minutes thermophilic digestion sterilization abilities, sealing property is reliably easily peeled off, and performances such as fine elasticity and toughness are arranged.
The purpose of the applicant's invention high temperature steaming strippable membrane is: adopt state-of-the-art in the world multiple difference in functionality modified polypropene (PP) and ethylene-vinyl acetate copolymer material, study of the influence of high molecular melt crystallization speed to the aggregated structure of material, through blending and modifying, by the multi-layer co-extruded blowing head of the superposing type with heat insulating function that designs voluntarily, downward-blowing water-cooling extrusion and blow molding equipment, online vanguard technology of cutting and technology, produce have nontoxic, high temperature resistant 121 ℃ of 30 minutes thermophilic digestions sterilizations, pliability is good, the heat sealing strength height, sealing property is good, jelly epiphragma of easily peeling off and foods packed in carton containers packaging material (abbreviation high temperature steaming strippable membrane).The production technology that cancellation China jelly adds anticorrisive agent is used 121 ℃ of 30 minutes sterilization technologies.Fill up the blank of domestic this technology.
The present invention adopts the solubility parameter multi-component copolymer polymer 2 close with PP, makes itself and modified polypropene 1, ethylene-vinyl acetate copolymer 3 by graft copolymerization, produces the combined strength bination of certain affinity increase high temperature steaming strippable membrane.Its production method (technological process) as shown in Figure 2.
Component ratio of the present invention is basically by following cooperation: modified polypropene (PP) 1 accounts for 15-25%, and multi-component copolymer polypropylene (PP) 2 accounts for 55-65% and this ethylene-vinyl acetate copolymer 3 accounts for 15-25%.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101013118A CN100460203C (en) | 2005-11-09 | 2005-11-09 | High temperature cooking easy peel film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101013118A CN100460203C (en) | 2005-11-09 | 2005-11-09 | High temperature cooking easy peel film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1935604A CN1935604A (en) | 2007-03-28 |
| CN100460203C true CN100460203C (en) | 2009-02-11 |
Family
ID=37953385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101013118A Expired - Fee Related CN100460203C (en) | 2005-11-09 | 2005-11-09 | High temperature cooking easy peel film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100460203C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2052857A1 (en) * | 2007-10-22 | 2009-04-29 | Dow Global Technologies Inc. | Multilayer films |
| CN101955740B (en) * | 2010-09-13 | 2012-11-28 | 云梦县德邦实业有限责任公司 | BOPE (Biaxially Oriented Poly Ethylene) strippable film |
| CN103072356A (en) * | 2012-10-19 | 2013-05-01 | 大连富利达塑料制品有限公司 | Easy-tearing high temperature cooking resistant soft plastic composite packaging material |
| CN110979989B (en) * | 2019-12-05 | 2023-06-02 | 威海恒瑞新型包装材料有限公司 | Easy Peel High Temperature Sterilization Indicator Strap |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09136388A (en) * | 1995-11-16 | 1997-05-27 | Dainippon Printing Co Ltd | Sealant film |
| JPH111270A (en) * | 1997-06-10 | 1999-01-06 | Dainippon Printing Co Ltd | Cover material for heat sealing |
| CN2324224Y (en) * | 1997-12-29 | 1999-06-16 | 蓝进传 | Fastening steel girder for shuttering |
-
2005
- 2005-11-09 CN CNB2005101013118A patent/CN100460203C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09136388A (en) * | 1995-11-16 | 1997-05-27 | Dainippon Printing Co Ltd | Sealant film |
| JPH111270A (en) * | 1997-06-10 | 1999-01-06 | Dainippon Printing Co Ltd | Cover material for heat sealing |
| CN2324224Y (en) * | 1997-12-29 | 1999-06-16 | 蓝进传 | Fastening steel girder for shuttering |
Non-Patent Citations (1)
| Title |
|---|
| 改性聚丙烯及其发展动向. 工程塑料应用，第29卷第4期. 2001 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1935604A (en) | 2007-03-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20121109 |