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Release film preparation method, release film and optical transparent glue

A technology of release film and silicone oil, which is applied in the direction of adhesives, film/sheet release liners, etc., can solve the problems of PET release force and glue pulling, etc., to avoid OCA pulling glue, reduce requirements, and improve release efficiency effect

Active Publication Date: 2018-06-26
GUANGZHOU GOVISIONOX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of tearing the light film, there is often a phenomenon of pulling glue, that is, when the light film is torn off, the PET release force is not appropriate and part of the OCA is also attached to the light film.

Method used

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  • Release film preparation method, release film and optical transparent glue
  • Release film preparation method, release film and optical transparent glue
  • Release film preparation method, release film and optical transparent glue

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Embodiment Construction

[0030] 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 of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] The step numbers in the drawings are only used as reference signs of the steps, and do not indicate the execution order.

[0032] figure 1 It is a schematic structural diagram of a release film according to an embodiment of the present invention. Such as figure 1 As shown, the release film 01 includes a coated silicone oil layer 02. The silicone oil layer 02 is used to bond with one side of the optically clear adhesive. outlines are basicall...

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Abstract

The embodiment of the invention discloses a release film preparation method, a release film and optical transparent glue, which aims to solve the technical problem that light transmission uniformity of OCA is damaged when the release film is released. The release film comprises a coated silicone oil layer, wherein release viscidity of the silicone oil layer is gradually increased in a tearing direction of the release film. At a tearing stop position, the biggest release force does not exceed tearing bearing ability of OCA; at a tearing starting position, release force of a tearing process is relatively low and regularly changes on the basis of effectively guaranteeing effective bonding strength with OCA, requirements, on stability of rerelease force, are reduced, release force and releasespeed can be efficiently combined, and the lasting state of relatively great release force is prevented from causing OCA glue-pulling while improving release efficiency.

Description

technical field [0001] The invention relates to the preparation of optically transparent glue, in particular to a preparation method of a release film, a release film and a structural optically transparent glue for a display screen. Background technique [0002] The existing OCA (Optically Clear Adhesive) is usually made of optical acrylic adhesive into a double-sided adhesive tape without a matrix material, and a layer of release film is attached to the upper and lower end surfaces. It is necessary to ensure high uniformity, light transmission and high adhesion. The material of the release film is usually PET (Polyethylene terephthalate polyethylene terephthalate), which are called light film and heavy film respectively. In the process of laminating the optical device, first tear off the light film on the OCA, then attach the OCA to the device, and then tear off the heavy film. In order to peel off the release film to achieve the release effect, the PET film and the OCA C...

Claims

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Application Information

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IPC IPC(8): C09J7/40
CPCC09J2203/318C09J2483/005
Inventor 陈玲艳刘仁杰
Owner GUANGZHOU GOVISIONOX TECH CO LTD
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