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Method for preparing optical release film for polarizer

A technology of release film and polarizer, applied in the direction of coating, etc., can solve the problems of uneven release film parameters and inability to meet the requirements of better polarizer process materials, and achieve high residual rate and stable peeling force Effect

Inactive Publication Date: 2017-09-05
苏州市星辰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the parameters of the release film used for polarizers in the market are uneven, which cannot meet the process material requirements for manufacturing better polarizers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The specific implementation of the present invention will be further described below in conjunction with the examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0017] The technical scheme of concrete implementation of the present invention is:

[0018] A preparation method for an optical release film for a polarizer, comprising the steps of:

[0019] 1) Mix 40 parts by weight of toluene and 40 parts by weight of ethanol to prepare a solvent; put 10 parts by weight of polymer into the solvent, stir for 15 minutes, add 1 part by weight of silane coupling agent KH560, keep stirring and add 7 parts by weight of auxiliary materials , 2 parts by weight of curing agent, stir evenly, and make coating liquid; The molecular formula of described polymkeric substance is CH 3 (SiHCH 3 )m(SiRCH 3 )nCH 3 , wherein R is an organic group containi...

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PUM

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Abstract

The invention discloses a method for preparing an optical release film for a polarizer. The method comprises the following steps: 1) preparing a coating solution; 2) coating the coating solution on a PET (Polyethylene Terephthalate) film; 3) drying the coated PET film at the temperature of 120-170 DEG C; 4) performing optical detection on the dried PET film; and 5) coiling and molding the PET film which is proved to be qualified through the optical detection, thereby obtaining the optical release film for the polarizer. According to the method disclosed by the invention, the optical release film for the polarizer with stable release force and high residual ratio is prepared. According to the optical release film for the polarizer prepared using the method disclosed by the invention, the release force is controlled to be 20-24g, and the residual ratio is not less than 85%.

Description

technical field [0001] The invention relates to a preparation method of an optical release film for a polarizer. Background technique [0002] Polarizers are mainly used for liquid crystal display. With the vigorous development of liquid crystal display technology, the development of polarizers is becoming more and more complicated, and the precision requirements are getting higher and higher. Optical release film is an essential material for polarizers. Its function is to protect the pressure-sensitive adhesive layer from damage and avoid lamination bubbles before the polarizer is attached to the LCD screen. However, the parameters of the release film used for polarizers in the market are uneven, which cannot meet the process material requirements for manufacturing better polarizers. Contents of the invention [0003] The object of the present invention is to provide a preparation method of an optical release film for a polarizer, which can prepare an optical release fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D5/20C08L67/02
CPCC08J7/0427C08J2367/02C09D5/20
Inventor 唐月方
Owner 苏州市星辰科技有限公司
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