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Photoresist and preparation method and application thereof

A photoresist and photoinitiator technology, applied in the field of photoresist, can solve the problems of low drying speed, difficult to control product viscosity, difficult to control viscosity, etc., to achieve excellent weather resistance and corrosion resistance, reliable adhesion, curing fast effect

Inactive Publication Date: 2016-05-11
KUSN HISENSE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after dyes are added to the existing photoresist system, it will become impossible to dry, and the viscosity is difficult to control. At present, there are few manufacturers producing this kind of product, and it cannot be promoted.
In addition, when two or more resins are used as prepolymers, the printing gloss is poor, easy to change color, and there are disadvantages such as low drying speed, difficult control of product viscosity, and easy gelation of the product. Absorption at 157nm is too high to be useful

Method used

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  • Photoresist and preparation method and application thereof
  • Photoresist and preparation method and application thereof

Examples

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preparation example Construction

[0041] The present invention also provides a preparation method of photoresist, comprising the steps of:

[0042] 1) 2-10 parts by weight of pigment and 6-12 parts by weight of dye are mixed, mixed with 20-30 parts by weight of polyester acrylate resin, dispersed and rolled to a particle size below 1 micron, to obtain a slurry carrier.

[0043] 2) The carrier is mixed with 2-7 parts by weight of active diluent and rolled to obtain a fine slurry.

[0044] 3) Add 20-50 parts by weight polyacrylate resin, 6-18 parts by weight reactive diluent, 2-8 parts photoinitiator and 1-5 parts dispersant to the fine slurry, and filter after stirring for some time, Obtain photoresist. The stirring speed is 800-2500 rpm, the stirring time is 15-90 minutes, and the photoresist can be obtained after filtering with a 1 micron butterfly filter.

[0045] In step 3), ensure that more than 95% of the particle size of the ground pigment is less than 1 micron, which can be tracked and monitored with ...

Embodiment 1

[0050] Preparation of blue photoresist for inkjet UV-curable printing.

[0051] Disperse the mixture of 6 parts of phthalocyanine blue and 7 parts of oil-soluble dye and 15 parts of polyacrylate resin on a three-roller and grind it finely, then add 6 parts of dipentaerythritol acrylate and mix to form a slurry, then add 45 parts of polyester acrylic acid Ester resin, 30 parts of dipentaerythritol pentaacrylate, 3 parts of 1-hydroxy-cyclohexyl benzophenone, and 1 part of dispersant, the stirring speed is controlled at 1800 rpm, and the UV blue photoresist can be obtained after stirring for 90 minutes. And use a 1 micron butterfly filter to filter all the blue photoresist to get the finished product. Keep out of direct sunlight throughout the process.

Embodiment 2

[0053] Preparation of blue transparent photoresist for inkjet UV-curable printing.

[0054] Disperse the mixture of 10 parts of phthalocyanine blue and 8 parts of oil-soluble dye and 10 parts of polyacrylate resin on a three-roll machine and grind it finely, then add 4 parts of tripropylene glycol diacrylate and mix to form a slurry, then add 40 parts of polyacrylate resin Acrylate resin and 16 parts of tripropylene glycol diacrylate and 3 parts of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 3 parts of benzophenone, 3 parts of dispersant, control the stirring speed at 1800 rev / min, after stirring for 90 minutes, UV blue transparent photoresist can be obtained, and the finished product can be obtained by filtering all the blue transparent photoresist with a 1 micron butterfly filter. The whole process takes place indoors.

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Abstract

The invention provides a photoresist and a preparation method and application thereof. The photoresist is prepared from, by weight, 40-80 parts of polyester acrylic resin, 2-10 parts of pigment, 6-12 parts of dye, 8-25 parts of reactive diluent, 2-8 parts of photoinitiator and 1-5 parts of dispersing agent. The photoresist has the advantages that the defects that an existing photoresist can not be used for printing and is extremely large in viscosity and the drying speed can not be precisely controlled are overcome, the photoresist has the advantages of being bright in color and luster, high in transparency, firm in adhesion force, high in curing speed, stable in performance, high in storage performance, excellent in weather resistance and corrosion resistance and the like, and the photoresist is suitable for the emerging industry of printing photoresists.

Description

technical field [0001] The invention relates to the field of photoresist, in particular to a UV curable printing photoresist and its preparation method and application. Background technique [0002] UV curable printing photoresist is a liquid photoresist that can change from liquid to solid under certain ultraviolet radiation. It is usually composed of pigments, pre (oligomers), reactive diluents, photoinitiators and additives. It has the advantages of no volatile solvent, no odor, no stimulation, good leveling, no clogging of nozzle holes, strong water resistance, solvent scrubbing resistance, etc. It is suitable for PCB industry, circuit board printing and other industries. [0003] In general, UV curing printing photoresist is to add a certain amount of dye to the existing system to make the glue appear transparent. However, after dyes are added to the existing photoresist system, it will become impossible to dry, and the viscosity is difficult to control. At present, th...

Claims

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Application Information

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IPC IPC(8): G03F7/027G03F7/004B41M5/00
CPCG03F7/027B41M5/0017G03F7/004
Inventor 周徐徐国强黄耀鹏徐海生
Owner KUSN HISENSE ELECTRONICS
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