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Multi-layer co-extrusion release film

A release film and co-extrusion technology, applied in the field of multi-layer co-extrusion release film, can solve the problems of affecting product molding, insufficient elongation, poor practical performance, etc., to achieve improved practical performance, good toughness, and good softness sexual effect

Inactive Publication Date: 2019-12-03
东莞市宇川塑胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this film in the prior art is mostly made of single-layer polyamide 6 or TPX material. The main disadvantage of the single-layer polyamide 6 structure is that the elongation rate is insufficient, and phenomena such as easy cracking occur, which affects the quality of the product. Forming; Although the release film made of TPX has good temperature resistance, filling and separation, it has disadvantages such as high cost and poor practical performance. Those skilled in the art urgently need a new type with practical performance. Better materials for release liners

Method used

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] like Figures 1 to 4 As shown, the present invention discloses a multi-layer co-extruded release film, which adopts a multi-layer composite structure design, the first layer is modified nylon PA6, the second layer is an adhesive layer, and the third layer is a composite layer. The layer consists of a multilayer structure consisting of a PMP layer or a TPX layer or a PP layer.

[0021] The composite layer of the present invention is composed of a PMP la...

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Abstract

The invention discloses a multi-layer co-extrusion release film. Multi-layer composite structural design is adopted, the first layer is modified nylon PA6, the second layer is a bonding layer, the third layer is a composite layer, and the composite layer comprises a multilayer structure consisting of a PMP layer, a TPX layer or a PP layer. According to the multi-layer co-extrusion release film, the problems that the existing release film has insufficient elongation and is prone to cracking are solved, and practicability of the release film is improved.

Description

technical field [0001] The invention relates to the technical field of a multilayer coextrusion composite film, in particular to a multilayer coextrusion release film. Background technique [0002] The release film refers to a film that can be distinguished on the surface of the film. The release film is not sticky or slightly sticky after contacting with a specific material under limited conditions. Usually, in order to increase the release force of the film, the plastic The film is treated with plasma, or coated with fluorine, or coated with a silicon release agent on the surface of the film material, such as PET, PE, OPP, etc., so that it can be extremely light and stable for various organic pressure-sensitive adhesives. release force. [0003] The release film is widely used in various industries, for example, daily necessities, medical chemicals, electronic products, etc. are widely used. However, this film in the prior art is mostly made of single-layer polyamide 6 o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C09J7/25C09J7/24
CPCC09J2423/006C09J2423/106C09J2477/006C09J7/29
Inventor 唐小平唐建军杨正才何仕强
Owner 东莞市宇川塑胶制品有限公司
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