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Polyethylene blown film for packaging

A blown film and polyethylene technology, applied in the field of plastic packaging materials, can solve the problems of insufficient bonding fastness, delamination, and easy drawing of blown film layers

Inactive Publication Date: 2021-07-09
武汉市江汇塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing polyethylene blown film has many problems such as unstable sealing, insufficient bonding fastness in the blown film layer, resulting in delamination when unraveling, instability and easy drawing when unraveling, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Preparation of polyethylene blown film according to the following formulation:

[0019] High density polyethylene 7 parts by weight, the melt index is 2.1 g / 10 min;

[0020] Low density polyethylene 35 parts by weight, the melt index is 1.8 g / 10 min;

[0021] 31 parts by weight of linear low density polyethylene, the melt index is 2.4 g / 10 min;

[0022] Ethylene - acrylate copolymer resin 15 parts by weight, the melt index is 3.9 g / 10 min;

[0023] 12 parts by weight of the ethylene - ethylene copolymer of ethylene, the melt index is 11.5 g / 10 min.

[0024] The above components were mixed, hot melt, molded, cooled, thereby producing polyethylene blown film products.

[0025] Polyethylene blown film by the package prepared according to the above embodiment, the heat sealing performance is good, the sealing is stable, the opening is stable, and the peeling interface is clean, there is no hierarchical and brushed problem, the quality is reliable, and the practical pe...

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PUM

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Abstract

The invention relates to the technical field of plastic packaging materials, and discloses a polyethylene blown film for packaging. The polyethylene blown film for packaging contains the following components in percentage by weight: 5-10wt% of high-density polyethylene, 20-40wt% of low-density polyethylene, 20-40wt% of linear low-density polyethylene, 10-20wt% of ethylene-acrylate copolymer resin and 5-15wt% of ethylene-vinyl acetate copolymer. The polyethylene blown film for packaging is good in heat sealing performance, stable in sealing, stable in uncovering, clean in stripping interface, free of layering and wiredrawing problems, reliable in quality and good in practical performance.

Description

Technical field [0001] The present invention relates to the technical field of plastic packaging materials, and more particularly to a polyethylene blowing film for packaging. Background technique [0002] When polyethylene is used as a thin film, a large portion is part of it with heat sealing in a sealing occasion, and the conventional polyethylene material has a good bonding force, and it is not easy to uncover. Performance. In order to make the polyethylene film have easy to uncovering the performance after the heat seal, the researchers modified the polyethylene material makes it easy to uncover performance, and the existing modification techniques are mainly divided into polyethylene materials. Modify and copolymerization, then the modified resin is applied to the polyethylene blow molding film to achieve the performance of the seal and easy to uncover. [0003] However, existing polyethylene blow molding films are unstable, and the binding film in the blow molding film is ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08J5/18
CPCC08J5/18C08J2323/06C08J2423/06C08J2423/08
Inventor 张勇胜
Owner 武汉市江汇塑业有限公司