CN201105860Y - Novel fresh meat thermal shrinkage keeping-fresh bag film - Google Patents
Novel fresh meat thermal shrinkage keeping-fresh bag film Download PDFInfo
- Publication number
- CN201105860Y CN201105860Y CN 200720094630 CN200720094630U CN201105860Y CN 201105860 Y CN201105860 Y CN 201105860Y CN 200720094630 CN200720094630 CN 200720094630 CN 200720094630 U CN200720094630 U CN 200720094630U CN 201105860 Y CN201105860 Y CN 201105860Y
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- protection package
- freshness protection
- fresh meat
- film
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Abstract
The utility model relates to a novel thermal shrinkage freshness protection package membrane for raw meats, pertaining to the food packaging field, which is pressed and composited by seven layers. By taking modified polyvinyl alcohol PVA as substrate, the novel thermal shrinkage freshness protection package membrane has high barrier property. The seven layers are respectively VLDPE/adhesive/PVA/EVOH/PVA/adhesive/LDPE. The EVOH is copolymer of ethylene - vinyl alcohol, and the VLDPE is modified polyethylene with low density; the membrane is characterized by high barrier, high shrinkage and low cost and is particularly suitable for packaging raw meats and shelf life can reach 50days.
Description
Technical field
The utility model is applicable to the packing of food, chemical industry, medicine, precision instrument, the fresh-keeping flexible packaging film of particularly a kind of novel fresh meat thermal contraction.
Background technology
The packing requirements of fresh meat is very high in the food, should be fresh-keeping, extend the shelf life again and shelf life, but require to develop have good barrier property, intensity height, anti-puncture, nonpoisonous and tasteless, the transparent low temperature contraction of gloss, long shelf-life, environment friendly and pollution-free, the packaging film that meets the international hygiene standard.Popularly in the world at present pack fresh meat with PP TYPE, especially in recent years development was very rapid, develop into five layers, seven layers by initial three layers, four layers, more domestic large enterprises all select products such as the U.S., Japan for use at present, but cost an arm and a leg, exceed 50%-80% than homemade film price approximately, and homemade film quality instability, the level of performance out of reach film imported, application less.
Summary of the invention
Problem to be solved in the utility model is that make a living fresh meat class packing provides a kind of novel seven-layer co-extrusion thermal contraction preservative film.
The utility model is achieved in that
A kind of novel fresh meat thermal contraction freshness protection package film is characterized in that the freshness protection package membrane structure is the symmetric form structure, is seven layers altogether, i.e. A
1/ B/C/D/C/B/A
2Form symmetry, wherein A
1Layer is outer stress layer, A
2Layer is the internal layer hot sealing layer, and the B layer is a bonding coat, and the C layer is a gas barrier layer, and the D layer is a high-obstruction; Described A
1,2Layer is modified low-density polyethylene VLDPE and LDPE film, and the B layer is a modification binder resin film, and the C layer is a modified polyvinylalcohol PVA film, and the D layer is ethylene-vinyl alcohol interpolymer EVOH or ethene-vinyl acetate copolymer EVA high-resistant diaphragm.
Above-mentioned polyethylene VLDPE, LDPE film, PVAC polyvinylalcohol film, EVOH or EVA high-resistant diaphragm are prior art and industry specification term.
Because, PVA there is fabulous barrier properties for gases and protects the flavor fragrance protectiveness because of it as the high-barrier functional material, but because the close hygroscopic property with heat decomposition temperature of its fusing point is poor, so by adding plasticizer, interfacial agent and other auxiliary agents carry out blending and modifying and have successfully solved the problems referred to above this project to it.
Ectonexine is selected modification VLDPE and LDPE for use.
Binder resin is selected 528H for use
The D layer is then selected EVOH or EVA for use
Technical characterictic by above-mentioned apolegamy the utility model film is: pulling strengrth 44/46MPa, breaking elongation are 125/150%, oxygen transit dose≤10cm
3/ m
224h0.1MPa, steam penetrating capacity＜30g/m
224h, percent thermal shrinkage 30-50%, resistance to cold keeps toughness at-50 ℃.
It is base material that the utility model adopts the modified PVA polyvinyl alcohol, design a kind of seven-layer co-extrusion thermal contraction preservative film, compared with prior art has following obvious advantage: 1. fabulous diaphaneity and glossiness, not dust suction, static electrification not, 2. higher draw tensile strength and percentage elongation are arranged, good resistance to abrasion, 3. fabulous barrier properties for gases is arranged under the low temperature condition and protect the fragrant flavor property of protecting, its resistance oxygen is better than EVOH and PVDC, PA, thermal viscosity and fuel resistance are fabulous, can use down at 180 ℃-200 ℃, 4. and environment friendly and pollution-free, become a kind of novel thermal contraction preservative film in the fresh meat Package.5. cost is low.
Description of drawings
Fig. 1 is embodiment 1 a described novel fresh meat thermal contraction preservative film structural representation.
Below in conjunction with drawings and Examples the utility model is further specified
The specific embodiment
Embodiment 1:
As shown in the figure, the A layer is outermost layer and innermost layer in the seven-layer structure, material is modified low-density polyethylene VLDPE and LDPE, and model is selected AFF/MTYRL1881G for use, and the B layer is a binder resin, selecting model for use is the 528H of Mitsui ﹠ Co., Ltd., the C layer is that high-obstruction (choke) material is the PVA modified polyvinylalcohol, and its fusing point is 160 ℃, and Vicat softening point is about 140 ℃, the D layer is EVOH for high barrier material, and model is EF-443.Above-mentioned material is expressed into the blend of superposing type seven-layer co-extrusion die head through seven extruders and extrudes, and through the vacuum sizing water-cooled, technological processes such as traction, biaxial tension, thermal finalization, rolling, packing form finished product.Gross thickness is 50 μ m, and the folding footpath is 270mm.
Technical characterictic by above-mentioned apolegamy the utility model film is: pulling strengrth 44/46MPa, breaking elongation are 125/150%, oxygen transit dose≤10cm
3/ m
224h0.1MPa, steam penetrating capacity＜30g/m
224h, percent thermal shrinkage 30-50%, resistance to cold keeps toughness at-50 ℃.
This film uses through use department, and reflection is good, and performance reaches the external product level, and cheap, and the market competitiveness is arranged very much.
Claims (5)
1, a kind of novel fresh meat thermal contraction freshness protection package film is characterized in that the freshness protection package membrane structure is the symmetric form structure, is seven layers altogether, i.e. A
1/ B/C/D/C/B/A
2Form symmetry, wherein A
1Layer is outer stress layer, A
2Layer is the internal layer hot sealing layer, and the B layer is a bonding coat, and the C layer is a gas barrier layer, and the D layer is a high-obstruction.
2, a kind of novel fresh meat thermal contraction freshness protection package film according to claim 1 is characterized in that A
1,2Layer is modified low-density polyethylene VLDPE and LDPE film.
3, a kind of novel fresh meat thermal contraction freshness protection package film according to claim 1 is characterized in that the B layer is a modification binder resin film.
4, according to claim 1 according to claim 1 novel fresh meat thermal contraction freshness protection package film, it is characterized in that the C layer is a modified polyvinylalcohol PVA film.
5, a kind of novel fresh meat thermal contraction freshness protection package film according to claim 1 is characterized in that the D layer is ethylene-vinyl alcohol interpolymer EVOH or ethylene-vinyl acetate copolymer EVA high-resistant diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720094630 CN201105860Y (en) | 2007-11-20 | 2007-11-20 | Novel fresh meat thermal shrinkage keeping-fresh bag film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720094630 CN201105860Y (en) | 2007-11-20 | 2007-11-20 | Novel fresh meat thermal shrinkage keeping-fresh bag film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201105860Y true CN201105860Y (en) | 2008-08-27 |
Family
ID=39957654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720094630 Expired - Fee Related CN201105860Y (en) | 2007-11-20 | 2007-11-20 | Novel fresh meat thermal shrinkage keeping-fresh bag film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201105860Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615899A (en) * | 2012-04-06 | 2012-08-01 | 湖南工业大学 | Chilled meat antibacterial packaging film and novel packaging method |
| CN102642359A (en) * | 2012-04-28 | 2012-08-22 | 张建岭 | High-separation multilayer joint-extrusion shrink film |
| CN103238655A (en) * | 2013-03-19 | 2013-08-14 | 南通玉兔集团有限公司 | Antibacterial preservation technology for conventional pickled bacon products |
| CN104262656A (en) * | 2014-09-25 | 2015-01-07 | 昆明理工大学 | Preparation method of mushroom preservative film |
| CN106113854A (en) * | 2016-06-28 | 2016-11-16 | 朝阳佛瑞达科技有限公司 | A kind of milk product packaging film and production method thereof |
| CN106275779A (en) * | 2015-06-26 | 2017-01-04 | 弗英（天津）物流系统科技有限公司 | A kind of soft high-barrier aseptic package bag |
| CN106275770A (en) * | 2016-08-30 | 2017-01-04 | 中山市振鸿包装科技有限公司 | A kind of bio-based multifunctional fresh-keeping bag |
| CN106273953A (en) * | 2015-05-14 | 2017-01-04 | 电气化学工业株式会社 | Multi-layer resinous thin film and container molding |
| CN106577959A (en) * | 2016-12-08 | 2017-04-26 | 中国农业科学院北京畜牧兽医研究所 | Method for reducing loss rate during cooling mature of carcass beef |
| CN111016118A (en) * | 2019-12-25 | 2020-04-17 | 山东亚新塑料包装有限公司 | Antibacterial high-oxygen barrier PE composite membrane and preparation method thereof |
| CN114872407A (en) * | 2022-04-29 | 2022-08-09 | 浙江金石包装有限公司 | Composite sheet for cheese stick packaging and production method thereof |
-
2007
- 2007-11-20 CN CN 200720094630 patent/CN201105860Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615899A (en) * | 2012-04-06 | 2012-08-01 | 湖南工业大学 | Chilled meat antibacterial packaging film and novel packaging method |
| CN102642359A (en) * | 2012-04-28 | 2012-08-22 | 张建岭 | High-separation multilayer joint-extrusion shrink film |
| CN103238655A (en) * | 2013-03-19 | 2013-08-14 | 南通玉兔集团有限公司 | Antibacterial preservation technology for conventional pickled bacon products |
| CN104262656B (en) * | 2014-09-25 | 2017-08-25 | 昆明理工大学 | A kind of preparation method of mushroom preservation film |
| CN104262656A (en) * | 2014-09-25 | 2015-01-07 | 昆明理工大学 | Preparation method of mushroom preservative film |
| CN106273953A (en) * | 2015-05-14 | 2017-01-04 | 电气化学工业株式会社 | Multi-layer resinous thin film and container molding |
| CN106275779A (en) * | 2015-06-26 | 2017-01-04 | 弗英（天津）物流系统科技有限公司 | A kind of soft high-barrier aseptic package bag |
| CN106113854A (en) * | 2016-06-28 | 2016-11-16 | 朝阳佛瑞达科技有限公司 | A kind of milk product packaging film and production method thereof |
| CN106275770A (en) * | 2016-08-30 | 2017-01-04 | 中山市振鸿包装科技有限公司 | A kind of bio-based multifunctional fresh-keeping bag |
| CN106577959A (en) * | 2016-12-08 | 2017-04-26 | 中国农业科学院北京畜牧兽医研究所 | Method for reducing loss rate during cooling mature of carcass beef |
| CN111016118A (en) * | 2019-12-25 | 2020-04-17 | 山东亚新塑料包装有限公司 | Antibacterial high-oxygen barrier PE composite membrane and preparation method thereof |
| CN111016118B (en) * | 2019-12-25 | 2021-08-24 | 山东亚新塑料包装有限公司 | Antibacterial high-oxygen barrier PE composite membrane and preparation method thereof |
| CN114872407A (en) * | 2022-04-29 | 2022-08-09 | 浙江金石包装有限公司 | Composite sheet for cheese stick packaging and production method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |