CN104647784A - Production method of steaming-grade CPP film - Google Patents
Production method of steaming-grade CPP film Download PDFInfo
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- CN104647784A CN104647784A CN201510047898.2A CN201510047898A CN104647784A CN 104647784 A CN104647784 A CN 104647784A CN 201510047898 A CN201510047898 A CN 201510047898A CN 104647784 A CN104647784 A CN 104647784A
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Abstract
The invention discloses a production method of a steaming-grade CPP film. The method comprises the following steps: (a) manufacturing a corona layer by weighing 19 to 21 parts of ternary polypropylene randon copolymer, manufacturing a core layer by weighing 59 to 61 parts of homo-polypropylene, manufacturing a heat seal layer by weighing 19 to 20 parts of ternary co-polypropylene, 0.5 to 0.64 part of a slipping agent and 0.08 to 0.22 part of anti-electrostatic agent, and mixing all raw materials for 3 minutes in a high-speed mixing machine; (b) plastically extruding the uniformly mixed materials at the temperature of 245 DEG C; (c) adhering a melt onto a cold roller by virtue of a high-pressure air knife, chilling the melt in a water bath at the temperature of 23 to 27 DEG C to form a cast sheet; (d) forming, and carrying out the thickness measurement feedback by utilizing an infrared system; (e) carrying out the corona spark treatment on the surface of the corona layer, enabling the corona tension to be 44 to 50 mN/m, and coiling the cast sheet at a speed of 60 to 70 m/min; (f) curing the cast sheet for 48 hours at the temperature of 27 to 28 DEG C. The product molded in the method is light in weight, resistant to impact, high in smoothness and clarity, resistant to abrasion, good in stress fracture resistance and excellent in chemical stability, insulation property and low-temperature heat seal property.
Description
Technical field
The invention belongs to packaging material production field, particularly a kind of production method of boiling level CPP film.
Background technology
Retort packaging developed over the past two years to pack one of classification faster.Digestion resistant food pack (hereinafter referred to as resistance to retort pouch), is commonly called as foods packed in carton containers, its most outstanding feature be long-term placement and do not occur putrid and deteriorated at normal temperatures; Use also very convenient, can heat boil again by cold food.Current resistance to retort pouch is mainly used in packing jar head food, prepared food etc., in Japan, West Europe also for packaged beverage, fruit juice, mashed potatoes, cereal foods etc., boiling level refers to PET, NY, aluminium foil etc. by after dry type compound, can make the compound base film of digestion resistant sterilization.Non-boiling level refers to can not do retort pouch internal layer base material, can only be used for the film of conventional packaging.Boiling level CPP film generally can be divided into common boiling, middle thermophilic digestion, thermophilic digestion.Common boiling heatproof less than 121 DEG C, half thermophilic digestion was at 121 DEG C/30 minutes, and thermophilic digestion is answered resistance to 135 DEG C/30 minutes.
What this patent related to is half Tropical cooking film.The erosion-resisting characteristics of common half Tropical cooking film is general, easily breaks, and quality is large, brings to like this transport and carrying use very inconvenient.
Summary of the invention
The object of the present invention is to provide a kind of production method of boiling level CPP film, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A production method for boiling level CPP film, following material, with parts by weight, adopts following step:
A), take 19 ~ 21 parts of ternary atactic copolymerized polypropenes and manufacture corona layer, 59 ~ 61 parts of HOPPs manufacture sandwich layer, 19 ~ 20 parts of ternary polymerized polypropylene, 0.5 ~ 0.64 part of slipping agent, 0.08 ~ 0.22 part of antistatic additive manufactures hot sealing layer, mixes 3 minutes respectively in high-speed mixer;
B), the material mixed is gone out in 245 DEG C of plasticisers;
C), melt to attach on cold roller Quench in 23 ~ 27 DEG C of water-baths by high pressure air knife and forms slab;
D), shaping, adopt infrared system carry out thickness measuring feedback;
E), to the surface of corona layer carry out the process of corona spark, make its corona tension force become 44 ~ 50mN/m, then with the speed rolling of 60 ~ 70m/min;
F), last 27 ~ 28 DEG C of slakings 48 hours.
Preferably, following material, with parts by weight, adopts following step:
A), take 20 parts of ternary atactic copolymerized polypropenes and manufacture corona layer, 60 parts of HOPPs manufacture sandwich layer, 19.28 parts of ternary polymerized polypropylene, 0.5 ~ 0.64 part of slipping agent, 0.08 ~ 0.22 part of antistatic additive manufactures hot sealing layer, mixes 3 minutes respectively in high-speed mixer;
B), the material mixed is gone out in 245 DEG C of plasticisers;
C) melt, extruded from die lip to attach to 23 ~ 27 DEG C of sharp cooling rolls Quench in 23 ~ 27 DEG C of water-baths by high pressure air knife and forms slab;
D), shaping, adopt infrared system carry out thickness measuring feedback;
E), to the surface of corona layer carry out the process of corona spark, make its corona tension force become 44 ~ 50mN/m, then with the speed rolling of 60 ~ 70m/min;
F), last 27 ~ 28 DEG C of slakings 48 hours.
Preferably, corona layer selects the PP of oil of SPC F800EDF, and sandwich layer selects the PP of oil of SPC FC801, and hot sealing layer selects the PP of Singapore import FL7623L.
Preferably, the model of described antistatic additive is Stat-Rite S-1120.
Preferably, corona tension force is 46mN/m.
Compared with prior art, the invention has the beneficial effects as follows:
Mold pressing of the present invention lighter in weight out, shock resistance, slickness, definition is high, wear-resistant, has good stress crack resistant, excellent chemical stability and insulating properties low temperature heat seal.
Detailed description of the invention
The production method of specific embodiment to a kind of general CPP film of the present invention is described further below, wherein material comprises corona layer, sandwich layer, hot sealing layer, corona layer selects the PP of oil of SPC F800EDF, sandwich layer selects the PP of oil of SPC FC801, hot sealing layer selects the PP of Singapore import FL7623L, the model of antistatic additive is Stat-Rite S-1120, and following material is with parts by weight.
Embodiment 1
Produce thickness 25 μm of films, adopt following step:
A), the PP that takes 20 parts of F800EDF manufactures corona layer, and the PP of 60 parts of F8001 manufactures sandwich layer, the PP of 19.28 parts of FL7623L, 0.64 part of slipping agent, and 0.08 part of antistatic additive manufactures hot sealing layer, mixes 3 minutes respectively in high-speed mixer;
B), the material mixed is gone out in 245 DEG C of plasticisers;
C), melt to attach on cold roller Quench in 23 ~ 27 DEG C of water-baths by high pressure air knife and forms slab;
D), shaping, adopt infrared system carry out thickness measuring feedback;
E), to the surface of corona layer carry out the process of corona spark, make its corona tension force become 46mN/m, then with the speed rolling of 60 ~ 70m/min;
F), last 27 ~ 28 DEG C of slakings 48 hours.
Embodiment 2
Produce thickness 30 μm of films, adopt following step:
A), the PP that takes 20 parts of F800EDF manufactures corona layer, and the PP of 60 parts of F8001 manufactures sandwich layer, the PP of 19.28 parts of FL7623L, 0.5 part of slipping agent, and 0.22 part of antistatic additive manufactures hot sealing layer, mixes 3 minutes respectively in high-speed mixer;
B), the material mixed is gone out in 245 DEG C of plasticisers;
C), melt to attach on cold roller Quench in 23 ~ 27 DEG C of water-baths by high pressure air knife and forms slab;
D), shaping, adopt infrared system carry out thickness measuring feedback;
E), to the surface of corona layer carry out the process of corona spark, make its corona tension force become 46mN/m, then with the speed rolling of 60 ~ 70m/min;
F), last 27 ~ 28 DEG C of slakings 48 hours.
Embodiment 3
Produce thickness 35 μm of films, adopt following step:
A), the PP that takes 20 parts of F800EDF manufactures corona layer, and the PP of 60 parts of F8001 manufactures sandwich layer, the PP of 19.28 parts of FL7623L, 0.5 part of slipping agent, and 0.22 part of antistatic additive manufactures hot sealing layer, mixes 3 minutes respectively in high-speed mixer;
B), the material mixed is gone out in 245 DEG C of plasticisers;
C), melt to attach on cold roller Quench in 23 ~ 27 DEG C of water-baths by high pressure air knife and forms slab;
D), shaping, adopt infrared system carry out thickness measuring feedback;
E), to the surface of corona layer carry out the process of corona spark, make its corona tension force become 46mN/m, then with the speed rolling of 60 ~ 70m/min;
F), last 27 ~ 28 DEG C of slakings 48 hours.
Claims (5)
1. a production method for boiling level CPP film, following material, with parts by weight, adopts following step:
, take 19 ~ 21 parts of ternary atactic copolymerized polypropenes and manufacture corona layers, 59 ~ 61 parts of HOPPs manufacture sandwich layer, 19 ~ 20 parts of ternary polymerized polypropylene, 0.5 ~ 0.64 part of slipping agent, 0.08 ~ 0.22 part of antistatic additive manufactures hot sealing layer, mixes 3 minutes respectively in high-speed mixer;
B), the material mixed is gone out in 245 DEG C of plasticisers;
C), melt to attach on cold roller Quench in 23 ~ 27 DEG C of water-baths by high pressure air knife and forms slab;
D), shaping, adopt infrared system carry out thickness measuring feedback;
E), to the surface of corona layer carry out the process of corona spark, make its corona tension force become 44 ~ 50mN/m, then with the speed rolling of 60 ~ 70m/min;
F), last 27 ~ 28 DEG C of slakings 48 hours.
2. the production method of boiling level CPP film according to claim 1, is characterized in that, following material, with parts by weight, adopts following step:
A), take 20 parts of ternary atactic copolymerized polypropenes and manufacture corona layer, 60 parts of HOPPs manufacture sandwich layer, 19.28 parts of ternary polymerized polypropylene, 0.5 ~ 0.64 part of slipping agent, 0.08 ~ 0.22 part of antistatic additive manufactures hot sealing layer, mixes 3 minutes respectively in high-speed mixer;
B), the material mixed is gone out in 245 DEG C of plasticisers;
C) melt, extruded from die lip to attach to 23 ~ 27 DEG C of sharp cooling rolls Quench in 23 ~ 27 DEG C of water-baths by high pressure air knife and forms slab;
D), shaping, adopt infrared system carry out thickness measuring feedback;
E), to the surface of corona layer carry out the process of corona spark, make its corona tension force become 44 ~ 50mN/m, then with the speed rolling of 60 ~ 70m/min;
F), last 27 ~ 28 DEG C of slakings 48 hours.
3. the production method of boiling level CPP film according to claim 1, it is characterized in that, corona layer selects the PP of oil of SPC F800EDF, and sandwich layer selects the PP of oil of SPC FC801, and hot sealing layer selects the PP of Singapore import FL7623L.
4. the production method of boiling level CPP film according to claim 1, is characterized in that, corona tension force is 46mN/m.
5. the production method of boiling level CPP film according to claim 1, is characterized in that, the model of described antistatic additive is Stat-Rite S-1120.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510047898.2A CN104647784A (en) | 2015-01-30 | 2015-01-30 | Production method of steaming-grade CPP film |
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| CN201510047898.2A CN104647784A (en) | 2015-01-30 | 2015-01-30 | Production method of steaming-grade CPP film |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985839A (en) * | 2015-05-29 | 2015-10-21 | 桐城市福润包装材料有限公司 | Production method for cooking grade ultraviolet resistant polypropylene film |
| CN105690816A (en) * | 2015-09-18 | 2016-06-22 | 安徽柒柒塑业有限公司 | CPP/CPE thin film production process |
| CN107877966A (en) * | 2017-11-28 | 2018-04-06 | 安徽松泰包装材料有限公司 | A kind of boiling level is cast compound CPP films |
| CN107984843A (en) * | 2017-11-28 | 2018-05-04 | 安徽松泰包装材料有限公司 | A kind of low temperature resistant CPP packaging films |
| CN109228580A (en) * | 2018-08-01 | 2019-01-18 | 宁波瑞成包装材料有限公司 | High-stiffness ultrathin paper towel packaging film and production method thereof |
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| CN101367280A (en) * | 2008-07-22 | 2009-02-18 | 黄山永新股份有限公司 | Antifreezing speed-sealing film and preparation method thereof |
| CN103434110A (en) * | 2013-08-30 | 2013-12-11 | 华威聚酰亚胺有限责任公司 | High-performance polypropylene film for heavy-current capacitors and manufacturing method thereof |
| CN103802432A (en) * | 2014-01-23 | 2014-05-21 | 黄山永新股份有限公司 | Transparent, high-barrier, cooking-resistant and easy-to-tear cover film and preparation method thereof |
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2015
- 2015-01-30 CN CN201510047898.2A patent/CN104647784A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101367280A (en) * | 2008-07-22 | 2009-02-18 | 黄山永新股份有限公司 | Antifreezing speed-sealing film and preparation method thereof |
| CN103434110A (en) * | 2013-08-30 | 2013-12-11 | 华威聚酰亚胺有限责任公司 | High-performance polypropylene film for heavy-current capacitors and manufacturing method thereof |
| CN103802432A (en) * | 2014-01-23 | 2014-05-21 | 黄山永新股份有限公司 | Transparent, high-barrier, cooking-resistant and easy-to-tear cover film and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985839A (en) * | 2015-05-29 | 2015-10-21 | 桐城市福润包装材料有限公司 | Production method for cooking grade ultraviolet resistant polypropylene film |
| CN105690816A (en) * | 2015-09-18 | 2016-06-22 | 安徽柒柒塑业有限公司 | CPP/CPE thin film production process |
| CN107877966A (en) * | 2017-11-28 | 2018-04-06 | 安徽松泰包装材料有限公司 | A kind of boiling level is cast compound CPP films |
| CN107984843A (en) * | 2017-11-28 | 2018-05-04 | 安徽松泰包装材料有限公司 | A kind of low temperature resistant CPP packaging films |
| CN109228580A (en) * | 2018-08-01 | 2019-01-18 | 宁波瑞成包装材料有限公司 | High-stiffness ultrathin paper towel packaging film and production method thereof |
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Application publication date: 20150527 |
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