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Polyethylene film for salt packaging bag

A polyethylene film and packaging bag technology, which is applied in the field of polyethylene film, can solve the problems of many corona treatment processes, little increase in surface tension, and high cost, so as to improve insufficient mechanical properties, save resources and costs, and increase surface tension. Effect

Active Publication Date: 2016-01-20
JIANGSU TAIHUA PLASTIC PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the surface tension of the film can be increased through this corona treatment, the surface tension is not greatly improved, and the adhesion cannot ensure the close connection between the ink and the film surface. In addition, the corona treatment process is many, the device is complicated, and the cost is high, so it is not suitable for Rapid Production of Thin Films

Method used

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  • Polyethylene film for salt packaging bag
  • Polyethylene film for salt packaging bag
  • Polyethylene film for salt packaging bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of polyethylene film for salt packaging bag is made of the following raw materials in parts by weight:

[0036] 600 parts of polyethylene, 100 parts of sweet potato starch, 68 parts of crushed corn leaves, 50 parts of 1 μm calcium carbonate particles, 10 parts of sucrose fatty acid ester, 11 parts of sorbic acid, 20 parts of diluent, 50 parts of additives;

[0037] The polyethylene includes low-density polyethylene, medium-density polyethylene, high-density polyethylene and cross-linked polyethylene, and the ratio of the four is 13:18:7:6;

[0038] The crushed corn leaves are prepared by the following method: wash the corn leaves and dry them, soak the dried corn leaves in water until they become soft, then dry them and grind them into powder, add acetic acid to the powder until the powder becomes a slurry shape, and air-dried naturally, and then ground into powder again to obtain corn grits;

[0039] The diluent is a mixture of methanol and ethylene glycol in a...

Embodiment 2

[0047] A kind of polyethylene film for salt packaging bag is made of the following raw materials in parts by weight:

[0048] 630 parts of polyethylene, 120 parts of sweet potato starch, 90 parts of crushed corn leaves, 66 parts of 10 μm calcium carbonate particles, 15 parts of sucrose fatty acid ester, 20 parts of sorbic acid, 23 parts of diluent, and 85 parts of additives;

[0049] The polyethylene includes low-density polyethylene, medium-density polyethylene, high-density polyethylene and cross-linked polyethylene, and the ratio of the four is 25:22:7:9;

[0050] The crushed corn leaves are prepared by the following method: wash the corn leaves and dry them, soak the dried corn leaves in water until they become soft, then dry them and grind them into powder, add acetic acid to the powder until the powder becomes a slurry shape, and air-dried naturally, and then ground into powder again to obtain corn grits;

[0051] The diluent is a mixture of methanol and ethylene glycol i...

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Abstract

The invention discloses a polyethylene film for a salt packaging bag. The polyethylene film is prepared from, by weight, 600-630 parts of polyethylene, 100-120 parts of starch, 68-90 parts of maize leaf smashed materials, 50-66 parts of calcium carbonate particles, 10-15 parts of sucrose fatty acid ester, 11-20 parts of sorbic acid, 20-23 parts of diluent and 50-85 parts of additives. An alcohol solvent serves as the diluent, a mixture of maleic anhydride and oleic acid serves as the additives, and the proportion of the diluent to the additives is 7 to 9-12. Firstly, polyethylene, the starch and maize leaf smashed materials are mixed, then the calcium carbonate particles and the additives are added, and finally sucrose fatty acid ester, sorbic acid and the diluent are added in sequence. The prepared polyethylene film has the advantages of being degradable and efficient in printing ink printing on the premise that a good mechanical property is maintained.

Description

technical field [0001] The invention relates to the field of polyethylene films, in particular to a polyethylene film for salt packaging bags. Background technique [0002] For a long time, in people's daily life, the packaging of edible salt has been using plastic packaging, including polyethylene film, polyester film, polypropylene film, etc. These plastic films have occupied the market for many years due to their advantages of low price, convenience and practicality. . Statistics have found that hundreds of millions of salt packaging bags are used in my country every year. These salt packaging bags will cause white pollution after being discarded. They will not degrade or rot for decades. They are extremely harmful to the environment and seriously affect the ecological environment and sustainable development. requirements. [0003] With the improvement of technology and the increasingly severe environmental protection, biodegradable treatment of plastics that cause white...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/26C08L3/02C08L97/02C08K13/02C08K3/26C08K5/09C08K5/1539C08J5/18
CPCC08J5/18C08J2323/06C08J2423/06C08L23/06C08L2201/06C08L2203/16C08L2205/025C08L2205/035C08L2207/062C08L2207/066C08L2023/44C08L3/02C08L97/02C08K13/02C08K2003/265C08K5/09C08K5/1539
Inventor 朱丽芬
Owner JIANGSU TAIHUA PLASTIC PROD CO LTD
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