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Composite film

A composite film and polyethylene adhesive technology, applied in the field of composite films, can solve the problems of non-waterproof and heat-resistant properties of matte films, limited use range, easy deformation, etc., and achieve excellent chemical resistance stability, good compatibility, The effect of strong water and gas barrier properties

Inactive Publication Date: 2015-08-26
TONGCHENG XINFENG COLOR PRINTING PACKAGING
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  • Abstract
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  • Application Information

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Problems solved by technology

[0002] Corona matting film is used for printing and compounding, and is mainly used to attach to the surface of the packaging box or the body of the can bottle. The existing matting film generally includes a polyethylene layer, and the upper surface of the polyethylene layer is provided with a matting layer. The matting layer is pressed by iron wheels, but the matting film of this structure is not waterproof and has poor heat resistance, it is easily damaged in a humid environment, and it is easy to deform when encountering high temperatures, so its application range is limited

Method used

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  • Composite film

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Embodiment Construction

[0013] specific implementation plan

[0014] As shown in the figure, a composite film, the composite film is a three-layer structure, followed by polyethylene resin layer 1, ethylene-vinyl alcohol copolymerization layer 3 and nylon layer 5, polyethylene resin layer and ethylene-vinyl alcohol copolymerization layer 3 are bonded by polyethylene adhesive 2, and the ethylene-vinyl alcohol co-trimeric layer and nylon layer 5 are bonded by adhesive 4.

[0015] Preferably, the ratio of ethylene to vinyl alcohol in the ethylene-vinyl alcohol copolymer layer 3 is 2:3.

[0016] Preferably, the thickness ratio of the polyethylene resin layer 1 , the ethylene-vinyl alcohol copolymer layer 3 and the nylon layer 5 is 1:5:1.

[0017] To sum up, the composite film has excellent heat sealing performance, melting performance, physical and mechanical properties, super water and gas barrier performance and excellent chemical resistance stability, and is compatible with five kinds of solution...

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Abstract

The invention relates to a composite film. The composite film is of a three-layer structure which comprises a polyethylene resin layer, an ethylene and vinyl alcohol copolymerization layer and a nylon layer in turn; the polyethylene resin layer and the ethylene and vinyl alcohol copolymerization layer are bonded through a polyethylene adhesive; the ethylene and vinyl alcohol copolymerization layer and the nylon layer are bonded through an adhesive.

Description

technical field [0001] The invention relates to the field of plastic films, in particular to a composite film. Background technique [0002] Corona matting film is used for printing and compounding, and is mainly used to attach to the surface of the packaging box or the body of the can bottle. The existing matting film generally includes a polyethylene layer, and the upper surface of the polyethylene layer is provided with a matting layer. The matting layer is pressed by an iron wheel, but the matting film of this structure is not waterproof and has poor heat resistance, is easily damaged in a humid environment, and is easily deformed when encountering high temperatures, so its application range is limited. Contents of the invention [0003] In order to overcome the defects of the prior art, the invention provides a composite membrane which is not easily damaged in a humid environment, is not easily deformed when encountering high temperatures, and has a wide range of ...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/30B32B27/34B32B27/32B32B7/12
Inventor 金钧
Owner TONGCHENG XINFENG COLOR PRINTING PACKAGING
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