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Composite membrane

A composite film and thin film technology, applied in the field of composite film, can solve the problems of wetting, affect the quality, easy to break, etc., and achieve the effect of good tensile resistance, good moisture resistance and good shrinkage.

Inactive Publication Date: 2016-03-23
CHONGQING SHENGYU NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The material ratio of the existing film preparation is unreasonable, resulting in poor stretch resistance and easy damage of the film; poor moisture-proof effect, when the outside of the package is accidentally splashed with water, the inside will be soaked soon, affecting food, electronic products, etc. item quality

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0008] A composite film, characterized in that the film comprises an outer layer, a middle layer and an inner layer bonded in sequence, and the composition ratios are respectively 24% (weight) of the outer layer, 44% (weight) of the middle layer, and 32% (weight) of the inner layer. % (weight); the inner layer is composed of 40% (weight) of MDPE5401, 30% (weight) of LDPE2420H, 16% (weight) of low-pressure polyethylene 218N, and 14% (weight) of anti-blocking agent 10063.

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PUM

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Abstract

The invention discloses a composite membrane which belongs to the field of packaging and waterproof materials and is designed aiming at solving the problem that the stretching resistant effect of existing products is poor. The composite membrane comprises an outer layer, a middle layer and an inner layer which are adhered in sequence with the composition proportion of 24% (weight) of outer layer, 44% (weight) of middle layer and 32% (weight) of inner layer. The composite membrane is good in stretching resistance effect, not easy to damage, good in dampproof effect, good in contractility, suitable for inner layer structure of packages of food, electronic products and the like, and is especially suitable for being used as a membrane adhered inside a flexible package of baby milk, and can also be used as a waterproof material.

Description

technical field [0001] The invention relates to a composite membrane. Background technique [0002] Foodstuffs including baby milk powder need to be packaged, electronic products need to be packaged to protect them from moisture before use, and many other products also need to be packaged to protect them from moisture. Whether it is metal barrels, cartons or plastic flexible packaging, it is usually necessary to stick a layer of film on the inside of the packaging to prevent moisture and dust. [0003] The material ratio of the existing film preparation is unreasonable, resulting in poor stretch resistance and easy damage of the film; poor moisture-proof effect, when the outside of the package is accidentally splashed with water, the inside will be soaked soon, affecting food, electronic products, etc. The quality of the item. Contents of the invention [0004] The purpose of the present invention is to provide a composite film with good tensile effect, not easy to be da...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08
CPCB32B27/08B32B2250/03B32B2250/242B32B2307/54B32B2307/73B32B2307/736B32B2439/62
Inventor 殷兴旺
Owner CHONGQING SHENGYU NEW MATERIAL CO LTD