CN104827722A - Easy-to-tear-off aluminum foil composite film and preparation method thereof - Google Patents
Easy-to-tear-off aluminum foil composite film and preparation method thereof Download PDFInfo
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- CN104827722A CN104827722A CN201410047729.4A CN201410047729A CN104827722A CN 104827722 A CN104827722 A CN 104827722A CN 201410047729 A CN201410047729 A CN 201410047729A CN 104827722 A CN104827722 A CN 104827722A
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- Prior art keywords
- aluminium foil
- tear
- polyurethane glue
- film
- density polyethylene
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
The invention discloses an easy-to-tear-off aluminum foil composite film, which includes an aluminum foil layer. An easy-to-tear polyethylene film layer is arranged above the aluminum foil layer and an easy-to-tear polyester film layer is arranged below the aluminum foil layer. The easy-to-tear polyester film layer is laminated with the aluminum foil layer through polyurethane glue and the easy-to-tear polyethylene film layer is laminated with the aluminum foil layer through modified polyurethane glue. The easy-to-tear polyethylene film layer is formed by mixing 45-55% of low-density polyethylene, 35-45% of linear low-density polyethylene and 10-20% of starch in a film blowing manner. The modified polyurethane glue is formed through combination of polyurethane glue, ethyl acetate and a curing agent according to the ratio of 5:2:1. The aluminum foil composite film is easy to tear-off and is convenient to use. When being used for continuous package on a commodity continuous packaging machine, the aluminum foil composite film is free of design of an easy-to-tear-off opening and can be torn off just by hand. The aluminum foil composite film is convenient to use.
Description
Technical field
The present invention relates to technical field of soft package, relate in particular to one and easily tear aluminium foil composite package film and preparation method thereof.
Background technology
Along with the development of science and technology and the raising of living standards of the people, people propose various new requirement to packaging material, as some packaging material, first need that there is good intensity, not frangible pouch, packaging product is avoided to be subject to the pollution of external environment, meanwhile, also require that it has tearability, the convenience that guarantee uses.
But existingly easily tear aluminium foil composite package film, usually be made up of PET, AL and PE structure, successional packaging machine when operating must stamp tearing of tearable mouth guarantee aluminium foil composite package film, if tearable mouth trains off will cause the waste of aluminium foil composite package film, the easy generation substandard products do not stamped, can not ensure tearing of aluminium foil composite package film.
Summary of the invention
The object of the invention is to the defect for above-mentioned prior art, one is provided easily to tear aluminium foil composite package film and preparation method thereof, to when commodity continuous packing machine device is packed continuously, without the need to designing tearable mouth, just aluminium foil composite package film can be torn with hand.
To achieve these goals, technical scheme of the present invention is:
One easily tears aluminium foil composite package film, comprise aluminium foil layer, PEF PE rete is easily torn in being provided with above of described aluminium foil layer, be provided with below described aluminium foil layer and easily tear PET polyester film, described easily tearing between PET polyester film and aluminium foil layer uses polyurethane glue compound, describedly easily tears PEF PE rete and aluminium foil layer modified polyurethane glue compound;
Described modified polyurethane glue, is combined by polyurethane glue, ethyl acetate and curing agent, and the ratio of described polyurethane glue, ethyl ester and curing agent is 5: 2: 1;
The described PEF PE rete that easily tears was mixed by following composition:
Low-density polyethylene 20%---55%;
The rare 30%--70% of linear low density polyethylene;
Starch 10%--50%.
As the improvement to technique scheme, described low-density polyethylene model is 2426H, and linear low density polyethylene is rare is 0220KJ.
The present invention still further provides the preparation method that this easily tears aluminium foil composite package film, and the method comprises the steps:
A), adopt polyurethane glue will easily to tear PET polyester film and aluminium foil layer is combined with each other, obtain two-layer composite membrane;
B), by rare to low-density polyethylene, linear low density polyethylene, starch proportionally Homogeneous phase mixing, carry out blown film production temperature 160 ~ 250 DEG C, easily torn PEF PE film;
C), PEF PE film will easily be torn and two-layer composite membrane modified polyurethane glue is combined into sandwich diaphragm;
D), sandwich diaphragm good for compound is carried out the slaking of 70 ~ 74 hours at curing chamber;
E), by national standard detect and check and accept, divide and cut into finished product.
Compared with prior art, aluminium foil composite package film of easily tearing prepared by the present invention is easily torn, for sandwich diaphragm structure, low-density polyethylene, linear low density polyethylene is rare defines a kind of taxis in the arrangement of poly-rare earth-macromolecule chain, define the strand arrangement of both direction in length and breadth, low-density polyethylene embodies longitudinal plasticity, linear low density polyethylene is rare embodies horizontal plastic property, starch is a kind of without internuncial macromolecular material, so the directionality selection good processing film can played with it and tear, when both direction is stressed in length and breadth, the cracking of easy generation strand, form good easy-to-rupture.Aluminium foil composite package film of easily tearing prepared by the present invention is easily torn easy to use, to when commodity continuous packing machine device is packed continuously, without the need to designing tearable mouth, just aluminium foil composite package film can be torn with hand, easy to use.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technology of the present invention is described in further detail.
Embodiment one:
Of the present inventionly easily tear aluminium foil composite package film,
A), adopt polyurethane glue will easily to tear PET polyester film and aluminium foil layer is combined with each other, obtain two-layer composite membrane;
B), get that low-density polyethylene 20%, linear low density polyethylene are rare 30%, starch 50% proportionally Homogeneous phase mixing, carry out blown film production temperature 250 DEG C, easily torn PEF PE film;
C), PEF PE film will easily be torn and two-layer composite membrane modified polyurethane glue is combined into sandwich diaphragm; Described modified polyurethane glue, is combined by polyurethane glue, ethyl acetate and curing agent, and the ratio of described polyurethane glue, ethyl ester and curing agent is 5: 2: 1;
D), sandwich diaphragm good for compound is carried out the slaking of 70 hours at curing chamber;
E), by national standard detect and check and accept, divide and cut into finished product.
Embodiment two:
Of the present inventionly easily tear aluminium foil composite package film,
A), adopt polyurethane glue will easily to tear PET polyester film and aluminium foil layer is combined with each other, obtain two-layer composite membrane;
B), get that low-density polyethylene 55%, linear low density polyethylene are rare 30%, starch 15% proportionally Homogeneous phase mixing, carry out blown film production temperature 260 DEG C, easily torn PEF PE film;
C), PEF PE film will easily be torn and two-layer composite membrane modified polyurethane glue is combined into sandwich diaphragm; Described modified polyurethane glue, is combined by polyurethane glue, ethyl acetate and curing agent, and the ratio of described polyurethane glue, ethyl ester and curing agent is 5: 2: 1;
D), sandwich diaphragm good for compound is carried out the slaking of 74 hours at curing chamber;
E), by national standard detect and check and accept, divide and cut into finished product.
Embodiment three:
Of the present inventionly easily tear aluminium foil composite package film,
A), adopt polyurethane glue will easily to tear PET polyester film and aluminium foil layer is combined with each other, obtain two-layer composite membrane;
B), get that low-density polyethylene 20%, linear low density polyethylene are rare 70%, starch 10% proportionally Homogeneous phase mixing, carry out blown film production temperature 255 DEG C, easily torn PEF PE film;
C), PEF PE film will easily be torn and two-layer composite membrane modified polyurethane glue is combined into sandwich diaphragm; Described modified polyurethane glue, is combined by polyurethane glue, ethyl acetate and curing agent, and the ratio of described polyurethane glue, ethyl ester and curing agent is 5: 2: 1;
D), sandwich diaphragm good for compound is carried out the slaking of 72 hours at curing chamber;
E), by national standard detect and check and accept, divide and cut into finished product.
Embodiment four:
Of the present inventionly easily tear aluminium foil composite package film,
A), adopt polyurethane glue will easily to tear PET polyester film and aluminium foil layer is combined with each other, obtain two-layer composite membrane;
B), get that low-density polyethylene 20%, linear low density polyethylene are rare 30%, starch 50% proportionally Homogeneous phase mixing, carry out blown film production temperature 255 DEG C, easily torn PEF PE film;
C), PEF PE film will easily be torn and two-layer composite membrane modified polyurethane glue is combined into sandwich diaphragm; Described modified polyurethane glue, is combined by polyurethane glue, ethyl acetate and curing agent, and the ratio of described polyurethane glue, ethyl ester and curing agent is 5: 2: 1;
D), sandwich diaphragm good for compound is carried out the slaking of 73 hours at curing chamber;
E), by national standard detect and check and accept, divide and cut into finished product.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. easily tear aluminium foil composite package film for one kind, comprise aluminium foil layer, it is characterized in that: PEF PE rete is easily torn in being provided with above of described aluminium foil layer, be provided with below described aluminium foil layer and easily tear PET polyester film, described easily tearing between PET polyester film and aluminium foil layer uses polyurethane glue compound, describedly easily tears PEF PE rete and aluminium foil layer modified polyurethane glue compound;
Described modified polyurethane glue, is combined by polyurethane glue, ethyl acetate and curing agent, and the ratio of described polyurethane glue, ethyl ester and curing agent is 5: 2: 1;
The described PEF PE rete that easily tears was mixed by following composition:
Low-density polyethylene 20%---55%;
The rare 30%--70% of linear low density polyethylene;
Starch 10%--50%.
2. according to claim 1ly easily tear aluminium foil composite package film, it is characterized in that: described low-density polyethylene model is 2426H, linear low density polyethylene is rare is 0220KJ.
3. prepare the preparation method easily tearing aluminium foil composite package film according to claim 1, it is characterized in that: the method comprises the steps:
A), adopt polyurethane glue will easily to tear PET polyester film and aluminium foil layer is combined with each other, obtain two-layer composite membrane;
B), by rare to low-density polyethylene, linear low density polyethylene, starch proportionally Homogeneous phase mixing, carry out blown film production temperature 160 ~ 250 DEG C, easily torn PEF PE film;
C), PEF PE film will easily be torn and two-layer composite membrane modified polyurethane glue is combined into sandwich diaphragm;
D), sandwich diaphragm good for compound is carried out the slaking of 70 ~ 74 hours at curing chamber;
E), by national standard detect and check and accept, divide and cut into finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047729.4A CN104827722A (en) | 2014-02-11 | 2014-02-11 | Easy-to-tear-off aluminum foil composite film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047729.4A CN104827722A (en) | 2014-02-11 | 2014-02-11 | Easy-to-tear-off aluminum foil composite film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104827722A true CN104827722A (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410047729.4A Pending CN104827722A (en) | 2014-02-11 | 2014-02-11 | Easy-to-tear-off aluminum foil composite film and preparation method thereof |
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| CN (1) | CN104827722A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624457A (en) * | 2019-01-09 | 2019-04-16 | 江阴宝柏包装有限公司 | One kind easily tears composite sheet and easily tears composite soft tube |
| CN110091558A (en) * | 2018-01-30 | 2019-08-06 | 上海久诚包装有限公司 | A kind of paper plastic-aluminum composite packing film and its production technology |
| CN111762438A (en) * | 2020-07-16 | 2020-10-13 | 安徽紫金新材料科技股份有限公司 | Easy-to-tear packaging bag |
| CN112248567A (en) * | 2020-09-12 | 2021-01-22 | 杭州科能新材料科技有限公司 | Composite film for cable wrapping layer and preparation method thereof |
-
2014
- 2014-02-11 CN CN201410047729.4A patent/CN104827722A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091558A (en) * | 2018-01-30 | 2019-08-06 | 上海久诚包装有限公司 | A kind of paper plastic-aluminum composite packing film and its production technology |
| CN109624457A (en) * | 2019-01-09 | 2019-04-16 | 江阴宝柏包装有限公司 | One kind easily tears composite sheet and easily tears composite soft tube |
| CN111762438A (en) * | 2020-07-16 | 2020-10-13 | 安徽紫金新材料科技股份有限公司 | Easy-to-tear packaging bag |
| CN112248567A (en) * | 2020-09-12 | 2021-01-22 | 杭州科能新材料科技有限公司 | Composite film for cable wrapping layer and preparation method thereof |
| CN112248567B (en) * | 2020-09-12 | 2022-06-21 | 杭州科能新材料科技有限公司 | Composite film for cable wrapping layer and preparation method thereof |
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Application publication date: 20150812 |