Multilayer heat shrinkage film

A heat shrinkable film and outer layer technology, applied in the field of packaging materials, can solve the problems of reducing production efficiency, increasing processing steps, increasing costs, etc.
CN102431258BInactive Publication Date: 2014-04-30广州澳霸塑料制品有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
广州澳霸塑料制品有限公司
Publication Date
2014-04-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

Disclosed is a multilayer heat shrinkable film, comprising a heat sealing layer contacting a packed article, an outer layer, and an interlayer connecting the outer layer and the heat sealing layer, wherein the heat sealing layer comprises a mixture of very low density polyethylene and one or more of reinforced medium density polyethylene, linear low density polyethylene, low density polyethylene, ethylene-alpha olefin plastomer copolymer, metallocene polyethylene and ethylene-vinyl acetate copolymer; the outer layer comprises a mixture of ethylene-propylene copolymer and one or more of reinforced medium density polyethylene, linear low density polyethylene, low density polyethylene, ethylene-alpha olefin plastomer copolymer, metallocene polyethylene and ethylene-vinyl acetate copolymer. The experimental results show that, the multilayer heat shrinkable film prepared by the present invention has a wide range of heat sealing temperature, and good mechanical and optical properties.
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Description

technical field

[0001] The invention relates to the technical field of packaging materials, and more specifically relates to a multilayer heat shrinkable film. Background technique

[0002] Commodity packaging plays an important role in the storage, transportation, quality assurance and beautification of commodities. With the advancement of technology, people put forward higher performance requirements for packaging materials. At present, as a packaging material with excellent performance, multi-layer heat shrinkable film has been widely used in the packaging of food and industrial products. Compared with traditional packaging materials, multi-layer heat shrinkable film has many advantages: for example, heat shrinkable film can achieve the effect of "body-fitting" packaging for goods after heat shrinkage, so that the goods can maintain their own appearance shape and make the appearance of the goods more beautiful. It is beautiful and saves space; as another example, multi-...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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