CN202293532U - Toughened film resistant to low-temperature refrigeration and cold storage and resistant to semi-high-temperature cooking - Google Patents
Toughened film resistant to low-temperature refrigeration and cold storage and resistant to semi-high-temperature cooking Download PDFInfo
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- CN202293532U CN202293532U CN2011204330695U CN201120433069U CN202293532U CN 202293532 U CN202293532 U CN 202293532U CN 2011204330695 U CN2011204330695 U CN 2011204330695U CN 201120433069 U CN201120433069 U CN 201120433069U CN 202293532 U CN202293532 U CN 202293532U
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Abstract
The utility model relates to a toughened film resistant to low-temperature refrigeration and cold storage and resistant to semi-high-temperature cooking. The film is formed by compounding a heat sealing layer, a core layer and a corona layer; the thickness of the film is 50-100 mum; the heat sealing layer accounts for 15-20 percent of the total thickness of the film; the core layer accounts for 60-70 percent of the total thickness of the film; and the corona layer accounts for 15-20 percent of the total thickness of the film. The film is convenient to prepare, the crystallinity in a polypropylene film forming process is changed by blending raw materials, the low temperature resistance, puncture resistance and easy cracking performance of the film are enhanced, the aims of resisting semi-high-temperature cooking at the temperature of 125 DEG C and resisting refrigeration and cold storage at the temperature of 30 DEG C below zero are fulfilled, and the market use requirement can be met.
Description
Technical field
The utility model relates to a kind of laminar product, the toughening type film of anti-half thermophilic digestion of specifically a kind of low temperature resistant freezed storage.
Background technology
The boiling film can be divided into by the heatproof situation: common boiling film (105-115 ℃, time 20-30min), (121 ℃ of half Tropical cooking film; Time 30min); Tropical cooking film (135 ℃, time 30min), compound with PA, PET, aluminium foil etc.; Group also will be used to pack the product that needs the thermophilic digestion sterilization, like meat, dip, agricultural product and medical supplies etc.Half Tropical cooking film that prior art is produced, physical and chemical index is lower, can only anti-121 ℃ of boiling, when boiling temperature was higher than 121 ℃, film will gross distortion.
In addition, existing half Tropical cooking film product is met low temperature and is become fragile, and the puncture performance is poor, and this is the characteristic of cast polypropylene film, can not satisfy the requirement of packaging product refrigeration.And market demands now should the thermophilic digestion sterilization, and the product that refrigerates the shelf-life that increases product again is more and more, and therefore, existing cast polypropylene film product can not satisfy the demand in market.
The utility model content
The purpose of the utility model just provides the toughening type film of anti-half thermophilic digestion of a kind of low temperature resistant freezed storage, to solve embrittlement, lower temperature resistance and puncture performance difference that plain edition half Tropical cooking film exists and the problem that can not meet the need of market.
The utility model is achieved in that the toughening type film of anti-half thermophilic digestion of a kind of low temperature resistant freezed storage, and this film is by hot sealing layer, sandwich layer and the corona layer is compound constitutes.
The thickness of said film is 50-100 μ m, and wherein, said hot sealing layer accounts for the 15-20% of overall film thickness, and said sandwich layer accounts for the 60-70% of overall film thickness, and said corona layer accounts for the 15-20% of overall film thickness.
Said hot sealing layer is the COPP layer of tasty and refreshing dose of interpolation and opening agent; Said sandwich layer is the blended layer of HOPP and polyolefin elastomer; Said corona layer carries out the COPP layer of spark corona treatment for the surface.
Hot sealing layer in the utility model, sandwich layer and corona layer are extruded by the extruder plasticizing respectively, and melt flows out through a T die, processes through the casting technique of casting roller quenching.Said hot sealing layer is selected COPP for use, and adds certain slipping agent and opening agent, and wherein slipping agent and opening agent content are 1000-2000ppm, and the coefficient of friction that makes film reaches the purpose that is prone to opening less than 0.2.Said sandwich layer is selected HOPP or COPP for use, and carries out blend with polyolefin elastomer, and wherein elastomer content is 5-30%.Said elastomer is an ethene-alpha-olefin copolymer, therein ethylene content 10-20%, density 0.85-0.88g/cm
3Said corona layer is selected COPP for use, and the spark corona treatment is carried out on its surface, and its surface tension is arrived more than the 38mN/m.
The utility model preparation is convenient; Through the raw material blend; Changed the degree of crystallinity in the polypropylene film forming procedure, improved film resistance to low temperature, puncture performance, be prone to the opening performance, reached not only anti-125 ℃ half thermophilic digestion, but also the purpose of anti--30 ℃ of freezed storages.Product has that the cast polypropylene film transparency is good, glossiness is high, good planeness, each can satisfy the user demand in market to performances such as performance balance, high tenacity, shock resistance, anti tear, puncture in length and breadth.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1 is that hot sealing layer, 2 is that sandwich layer, 3 is the corona layer.
The specific embodiment
Embodiment 1:
As shown in Figure 1, the utility model comprises hot sealing layer 1, sandwich layer 2 and corona layer 3.Hot sealing layer 1 is selected COPP for use, and additive opening agent and slipping agent, and wherein, the opening agent content is 2000ppm, and slipping agent content is 1500ppm.Sandwich layer 2 is selected COPP and polyolefin elastomer blends for use, and wherein, the elastomer content in the blend is 25%.Corona layer 3 is selected COPP for use.
Film product to preparing is tested as follows:
(1) cooking test: cut the foursquare sample of long 200mm, on the heat-sealing test instrument, process the pocket of long 200mm, wide 100mm, and inject the 50ml aqueous solvent respectively, and on the heat-sealing test instrument, seal.The pocket of sealing mouthful is placed in the back-pressure digester, carries out 125 ℃, the boiling of 60min, when treating that the back-pressure digester is cooled to below 90 ℃, open the pressure-reducing valve pressure release after, take out test specimen and judge.Result of the test is seen table 1.
(2) heat distortion test: cut the foursquare sample of long 100 * 100mm, be placed in the back-pressure digester, carry out 125 ℃, the boiling of 60min, when treating that the back-pressure digester is cooled to below 90 ℃, open the pressure-reducing valve pressure release after, measure the size of square sample.Result of the test is seen table 1.
(3) drop-dart impact test: the film product to producing is positioned over-30 ℃ of conditions and is no less than 4 hours; Then sample is carried out drop-dart impact test according to GB/T 9639.1-2008 " plastic sheeting and the free dart method of thin slice shock resistance test method part 1: step method ", the low-temperature resistant and shock resistant performance of the film product that test is prepared.Result of the test is seen table 1.
(4) coefficient of friction test: the film product to producing carries out coefficient of friction test, the coefficient of friction of the film product that test is prepared according to GB10006-88 " plastic sheeting and thin slice measuring friction coefficient method ".Result of the test is seen table 1.
Embodiment 2:
Of Fig. 1, the utility model comprises hot sealing layer 1, sandwich layer 2 and corona layer 3.Hot sealing layer 1 is selected COPP for use, and additive opening agent and slipping agent, and wherein, the opening agent content is 2000ppm, and slipping agent content is 1500ppm.Sandwich layer 2 is selected HOPP and polyolefin elastomer blends for use, and wherein, the elastomer content in the blend is 10%.Corona layer 3 is selected COPP for use.
According to the test method of embodiment 1, the film product of preparing is made an experiment, result of the test is seen table 1.
Embodiment 3:
Of Fig. 1, the utility model comprises hot sealing layer 1, sandwich layer 2 and corona layer 3.Hot sealing layer 1 is selected COPP for use, and additive opening agent and slipping agent, and wherein, the opening agent content is 2000ppm, and slipping agent content is 1500ppm.Sandwich layer 2 is selected COPP and polyolefin elastomer blends for use, and wherein, the elastomer content in the blend is 30%.Corona layer 3 is selected COPP for use.
According to the test method of embodiment 1, the film product of preparing is made an experiment, result of the test is seen table 1.
Table 1: result of the test
Claims (3)
1. the toughening type film of anti-half thermophilic digestion of low temperature resistant freezed storage is characterized in that, this film is by hot sealing layer (1), sandwich layer (2) and the compound formation of corona layer (3).
2. the toughening type film of anti-half thermophilic digestion of low temperature resistant freezed storage according to claim 1; It is characterized in that; The thickness of said film is 50-100 μ m, and wherein, said hot sealing layer (1) accounts for 15-20% of overall film thickness; Said sandwich layer (2) accounts for 60-70% of overall film thickness, and said corona layer (3) accounts for 15-20% of overall film thickness.
3. the toughening type film of anti-half thermophilic digestion of low temperature resistant freezed storage according to claim 1 is characterized in that, said hot sealing layer (1) is the COPP layer of tasty and refreshing dose of interpolation and opening agent; Said sandwich layer (2) is the blended layer of HOPP and polyolefin elastomer; Said corona layer (3) carries out the COPP layer of spark corona treatment for the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204330695U CN202293532U (en) | 2011-11-04 | 2011-11-04 | Toughened film resistant to low-temperature refrigeration and cold storage and resistant to semi-high-temperature cooking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204330695U CN202293532U (en) | 2011-11-04 | 2011-11-04 | Toughened film resistant to low-temperature refrigeration and cold storage and resistant to semi-high-temperature cooking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202293532U true CN202293532U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204330695U Expired - Fee Related CN202293532U (en) | 2011-11-04 | 2011-11-04 | Toughened film resistant to low-temperature refrigeration and cold storage and resistant to semi-high-temperature cooking |
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| CN (1) | CN202293532U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203933A (en) * | 2013-03-23 | 2013-07-17 | 湖北慧狮塑业股份有限公司 | Low-temperature-resistant impact-resistant CPP (cast polypropylene) cooking-resistant film |
| CN104742463A (en) * | 2015-04-17 | 2015-07-01 | 湖北德威包装科技有限公司 | High-barrier high-temperature-resistant sterilization digestion membrane and preparation method thereof |
| CN104827730A (en) * | 2015-01-30 | 2015-08-12 | 安徽松泰包装材料有限公司 | Non-stretched general CPP thin film producing method |
| CN105473332A (en) * | 2013-08-27 | 2016-04-06 | 琳得科株式会社 | Heat-resistant laminated sheet and method for producing same |
| CN106827747A (en) * | 2016-12-21 | 2017-06-13 | 安徽双津实业有限公司 | A kind of non-stretched micro-foaming polypropylene film |
| CN108790004A (en) * | 2018-05-28 | 2018-11-13 | 永新股份（黄山）包装有限公司 | A kind of resistance to boiling suction nozzle and its production method |
| CN114604526A (en) * | 2022-03-28 | 2022-06-10 | 河南鸿鹄新材料有限公司 | Low-temperature-resistant freezing and semi-high-temperature-resistant steaming and boiling ultra-soft packaging film |
-
2011
- 2011-11-04 CN CN2011204330695U patent/CN202293532U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203933A (en) * | 2013-03-23 | 2013-07-17 | 湖北慧狮塑业股份有限公司 | Low-temperature-resistant impact-resistant CPP (cast polypropylene) cooking-resistant film |
| CN105473332A (en) * | 2013-08-27 | 2016-04-06 | 琳得科株式会社 | Heat-resistant laminated sheet and method for producing same |
| CN105473332B (en) * | 2013-08-27 | 2017-09-05 | 琳得科株式会社 | Heat-resisting laminates and its manufacture method |
| CN104827730A (en) * | 2015-01-30 | 2015-08-12 | 安徽松泰包装材料有限公司 | Non-stretched general CPP thin film producing method |
| CN104742463A (en) * | 2015-04-17 | 2015-07-01 | 湖北德威包装科技有限公司 | High-barrier high-temperature-resistant sterilization digestion membrane and preparation method thereof |
| CN106827747A (en) * | 2016-12-21 | 2017-06-13 | 安徽双津实业有限公司 | A kind of non-stretched micro-foaming polypropylene film |
| CN108790004A (en) * | 2018-05-28 | 2018-11-13 | 永新股份（黄山）包装有限公司 | A kind of resistance to boiling suction nozzle and its production method |
| CN114604526A (en) * | 2022-03-28 | 2022-06-10 | 河南鸿鹄新材料有限公司 | Low-temperature-resistant freezing and semi-high-temperature-resistant steaming and boiling ultra-soft packaging film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20151104 |
|
| EXPY | Termination of patent right or utility model |