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A low temperature polyethylene film

A technology of low-temperature polyethylene and low-density polyethylene, which is applied in the field of three-layer co-extrusion blow molding products, can solve the problems of high energy consumption in film processing, and achieve the effects of reducing energy consumption, good packaging experience, and high heat-sealing integrity

Active Publication Date: 2021-05-04
河南耐可达彩色印刷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the processing energy consumption of the film is relatively large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A low-temperature polyethylene film made by co-extrusion blow molding of inner, middle and outer three-layer films,

[0028] The inner layer is made of linear low-density polyethylene FK1828, metallocene polyethylene 1881G and low-density polyethylene 2426H at a weight percentage of 25%:55%:20%,

[0029] The middle layer is made of linear low density polyethylene 35B, linear low density polyethylene 222WT and low density polyethylene 2420H with a weight percentage of 40%: 40%: 20%,

[0030] The outer layer is made of linear low density polyethylene 35B and low density polyethylene 2426H at a weight percentage of 80%:20%.

[0031] The processing temperature of the inner layer is 140°C.

[0032] The processing temperature of the middle layer is 150°C.

[0033] The processing temperature of the outer layer is 160°C.

[0034] The co-extrusion blow molding is formed by blow molding with a three-layer co-extrusion blow molding machine, and the die head temperature of the t...

Embodiment 2

[0039] The low temperature polyethylene film that present embodiment describes, and embodiment 1 difference is:

[0040] The processing temperature of the inner layer is 142°C.

[0041] The processing temperature of the middle layer is 152°C.

[0042] The processing temperature of the outer layer was 163°C.

[0043] The co-extrusion blow molding is formed by blow molding with a three-layer co-extrusion blow molding machine, and the die head temperature of the three-layer co-extrusion blow molding machine is 163°C.

Embodiment 3

[0045] The low temperature polyethylene film that present embodiment describes, and embodiment 1 difference is:

[0046] The processing temperature of the inner layer is 145°C.

[0047] The processing temperature of the middle layer is 155°C.

[0048] The processing temperature of the outer layer is 165°C.

[0049] The co-extrusion blow molding is formed by blow molding with a three-layer co-extrusion blow molding machine, and the die head temperature of the three-layer co-extrusion blow molding machine is 165°C.

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Abstract

The invention discloses a low-temperature polyethylene film, which belongs to the technical field of three-layer co-extrusion blow molding products. FK1828, metallocene polyethylene 1881G and low-density polyethylene 2426H are made of 25-30% by weight: 50-55%: 20%, and the middle layer is made of linear low-density polyethylene 35B, linear low-density polyethylene 222WT and low-density polyethylene Ethylene 2420H is made of 40‑45% by weight: 35‑40%: 20%, and the outer layer is made of linear low density polyethylene 35B and low density polyethylene 2426H by weight percentage 80‑85%: 15‑20%. The invention can reduce the heat-sealing temperature of the polyethylene film, improve the production efficiency of packaging products, and effectively reduce the production cost.

Description

technical field [0001] The invention belongs to the technical field of three-layer co-extruded blow molding products, in particular to a low-temperature polyethylene film. Background technique [0002] Three-layer co-extrusion composite film has been widely used in food, medicine, chemical industry and other fields, among which food packaging accounts for the largest proportion, such as beverage packaging, quick-frozen food packaging, cooking food packaging, fast food packaging, etc. These products give People's lives have brought great convenience. At present, multi-layer packaging materials based on PE films are widely used in the market. Although they are colorless, odorless, non-toxic, have excellent low temperature resistance and chemical stability, and the preparation of films is simple, etc., their The heat sealing temperature is high, around 150°C, which is not conducive to improving the production efficiency of end customers and reducing production costs. [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B27/32B32B33/00B29C48/21B29C48/08
CPCB32B27/08B32B27/32B32B27/327B32B33/00B32B2250/242B32B2307/412B32B2307/558B32B2439/80B29C48/08B29C48/21
Inventor 葛肆安王纪安牛少杰李合中
Owner 河南耐可达彩色印刷有限公司
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