Self-lubricating polyethylene membrane

A polyethylene film, self-lubricating technology, applied in the field of flexible packaging film, can solve problems such as instability and inaccurate control of friction coefficient, and achieve the effects of accurate and stable friction coefficient, improved packaging production efficiency, and high film transparency.

Inactive Publication Date: 2009-07-08
HUANGSHAN YONGJIA GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the organic slip agent is added to the polyethylene film, it is a "slow precipitation" process, and the final friction coefficient can be obtained after 7-10 days, and the control of the friction coefficient is often inaccurate and unstable.

Method used

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  • Self-lubricating polyethylene membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 1 part and 1.2 parts of LDPE and LLDPE for the outer layer; take 1 part of LDPE and LLDPE for the middle layer; take 1 part of LDPE for the inner layer, 1 part of LLDPE, 1.5 parts of MLLDPE, 0.015 parts of 10090-K, ABPE15N0 .1 part.

[0031] The proportioned materials are produced by multi-layer co-extrusion blow molding equipment according to the following procedures: feeding process, material plasticizing extrusion process, inflation traction process, air ring cooling process, herringbone splint process, traction roller traction process, Corona treatment process, film winding process:

[0032] The properties of this film and ordinary polyethylene film are shown in the following table:

[0033]

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PUM

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Abstract

The invention discloses a self-lubricating polyethylene membrane. The membrane consists of an outer layer, an intermediate layer and an inner layer, wherein the outer layer contains low density polyethylene and linear low density polyethylene with a weight ratio of 1:0.5-2; the intermediate layer contains low density polyethylene and linear low density polyethylene with a weight ratio of 1:0.5-5; and the inner layer contains low density polyethylene, linear low density polyethylene, metallocene linear low density polyethylene, a slipping agent and an auxiliary agent with a weight ratio of 1:0.5-2:1-2:0.01-0.02:0.05-0.2. Compared with the prior art, the self-lubricating polyethylene membrane has precise and stable friction coefficient and good transparency and lustrousness, and can realize matched packaging effect with a quick automatic packaging machine.

Description

1. Technical field [0001] The invention relates to a flexible packaging film, specifically a self-lubricating polyethylene film. 2. Background technology [0002] With the development of the economy and the improvement of the degree of mechanization of production, most manufacturers of flexible packaging films in the market have introduced high-speed automatic packaging equipment to realize the automation of packaging and reduce labor costs. Many of the existing flexible packaging films (bags) use polyethylene (PE) film as the heat-sealing layer. When the flexible packaging film runs on the automatic packaging machine, whether the film runs smoothly depends on the relationship between the film and the automatic packaging machine. The contact surface, that is, the inner layer of the film (heat seal layer). If the friction coefficient of the inner polyethylene film is too high, it will cause poor film running of the flexible packaging material and reduce production efficiency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D65/40B32B27/20B32B27/32
Inventor 唐礼亮江文斌王宾
Owner HUANGSHAN YONGJIA GRP
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