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Preparation method capable of changing surface release forces of PET films

A technology of release force and film surface, applied in the direction of coating, etc., can solve the problems of unstable release force and short storage time of PET film, and achieve the effect of high residual adhesive force and stable release force

Inactive Publication Date: 2018-04-06
东莞戴卡电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing PET film has unstable release force, is easy to adhere to other materials, and has a short storage time. Generally, it can only be stored for one to two years.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The present invention relates to a preparation method for changing the release force of the PET film surface, which is characterized in that: comprising the following steps:

[0017] (1) Preparation of release liquid: Mix 30 parts by weight of butanone, 55 parts by weight of toluene and 15 parts by weight of isopropanol to prepare a diluent; put 0.60 parts by weight of vinyl organic Silicon polymer and 1.40 parts by weight of polydimethylsiloxane were stirred for 20 minutes; 0.22 parts by weight of SiH functional siloxane was added and stirred for 5 minutes; 0.17 parts by weight of Syl-Off®7362 was added Formulation, continue to stir for 5 minutes; add 1.2 parts by weight of Syl-Off®4000 catalyst, continue to stir for 10 minutes;

[0018] (2) Coating the release liquid on the PET film;

[0019] (3) Put the coated PET film into the baking unit of a specific coating machine and bake it at a temperature of 80~145°C, then wind it up and form it to make a PET film with a co...

Embodiment 2

[0025] The present invention relates to a preparation method for changing the release force of the PET film surface, which is characterized in that: comprising the following steps:

[0026] (1) Preparation of release liquid: Mix 30 parts by weight of butanone, 55 parts by weight of toluene and 15 parts by weight of isopropanol to prepare a diluent; put 0.63 parts by weight of vinyl organic Silicon polymer and 1.41 parts by weight of polydimethylsiloxane were stirred for 20 minutes; 0.22 parts by weight of SiH functional siloxane were added and stirred for 5 minutes; 0.23 parts by weight of Syl-Off®7362 was added Formulation, continue to stir for 5 minutes; add 1.25 parts by weight of Syl-Off®4000 catalyst, continue to stir for 10 minutes;

[0027] (2) Coating the release liquid on the PET film;

[0028] (3) Put the coated PET film into the baking unit of a specific coating machine and bake it at a temperature of 80~145°C, and then roll it into shape to make a PET film with a ...

Embodiment 3

[0034] The present invention relates to a preparation method for changing the release force of the PET film surface, which is characterized in that: comprising the following steps:

[0035] (1) Preparation of release liquid: Mix 30 parts by weight of butanone, 55 parts by weight of toluene and 15 parts by weight of isopropanol to prepare a diluent; put 0.65 parts by weight of vinyl organic Silicon polymer and 1.43 parts by weight of polydimethylsiloxane were stirred for 20 minutes; 0.23 parts by weight of SiH functional siloxane were added and stirred for 5 minutes; 0.32 parts by weight of Syl-Off®7362 was added Formulation, continue to stir for 5 minutes; add 1.28 parts by weight of Syl-Off®4000 catalyst, continue to stir for 10 minutes;

[0036] (2) Coating the release liquid on the PET film;

[0037] (3) Put the coated PET film into the baking unit of a specific coating machine and bake it at a temperature of 80~145°C, and then roll it into shape to make a PET film with a ...

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PUM

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Abstract

The invention relates to a preparation method capable of changing surface release forces of PET films. The preparation method is characterized by comprising the following steps: (1) preparing a release liquid; (2) coating the PET films with the release liquid; (3) putting the coated PET films into a baking unit of a specific coating machine for baking, and then performing winding and molding to prepare the PET films with the corresponding release forces. The PET films with different release forces can be prepared by changing the component content of the release liquid. The prepared PET films have stable release force and high residual adhesive force, and can be stored for two years or longer under the environment with temperature being 23 plus or minus 2 DEG C and humidity being 55 plus orminus 5.

Description

technical field [0001] The invention relates to the technical field of PET films, in particular to a preparation method for changing the release force of the PET film surface. Background technique [0002] The existing PET film has unstable release force, is easy to adhere to other materials, and has a short storage time, generally only one to two years. Contents of the invention [0003] In order to solve the above problems, the present invention provides a preparation method for changing the surface release force of a PET film with stable release force and high residual adhesive force. [0004] In order to achieve the above object, the present invention adopts the following technical solutions: a preparation method for changing the release force of the PET film surface, characterized in that: comprising the steps: [0005] (1) Preparation of release liquid: put 0.60~0.65 parts by weight of vinyl silicone polymer and 1.40~1.43 parts by weight of polydimethylsiloxane into...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04
CPCC08J7/0427C08J2367/02C08J2483/04C08J2483/05C08J2483/07
Inventor 袁浩陈胜坤倪修斌
Owner 东莞戴卡电子科技有限公司
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