A kind of multi-layer co-extruded embossed film and its preparation method

A technology of co-extrusion and patterned film, which is applied in the field of multi-layer co-extruded patterned film and its preparation, can solve the problems of poor bearing performance of single-layer plastic structure, failure to satisfy consumers, poor air tightness, etc., and achieve low cost , various functions, good sealing effect
CN106739329BActive Publication Date: 2019-09-10东莞市博晨塑料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
东莞市博晨塑料科技有限公司
Publication Date
2019-09-10

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Abstract

The invention provides a novel multilayer coextruded embossed membrane and a preparation method thereof. The membrane consists of a first PA layer, a second adhesive PE layer, a third EVOH or PA layer, a fourth adhesive PE layer and a fifth PE layer in sequence. The five-layer coextruded membrane is high in water resistance performance, high in oxygen resistance performance and good in sealing effect, and is further relatively high in tensile strength, heat resistance, cold resistance, photopathy, permeability resistance and chemical stability, multifunctional and low-cost; furthermore, a bag body made of the novel multilayer coextruded corrugated membrane is processed by coextruding an environmentally-friendly material, so that no solvent residual damage is caused, and the bag body is very suitable for being used at home.
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Description

technical field

[0001] The invention relates to the field of thin film technology, in particular to a multilayer co-extruded grained film and a preparation method thereof. Background technique

[0002] The material of the existing vacuum bag is generally a single-layer plastic structure, which is not strong and has poor airtightness. After vacuuming, it will leak in just a few days or even a few hours, so it is not suitable for use. Moreover, the single-layer plastic structure has poor bearing performance and is extremely easy to be damaged, which cannot meet the needs of consumers. Contents of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a multi-layer co-extruded textured film and its preparation method. The multi-layered co-extruded textured film has high water resistance and high oxygen resistance and good sealing effect , also has good tensile strength, heat resistance, cold resistance, light-shielding, ...

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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