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Method for preparing high precision printing round mesh photosensitive adhesive

A technology for printing rotary screen and photosensitive adhesive, which is applied in photomechanical equipment, photo-engraving process of pattern surface, and photosensitive materials for optical mechanical equipment, etc. It is difficult to greatly improve the pattern, and the exposure time is long, so as to achieve the effect of short exposure time, high exposure precision and broad application prospects.

Inactive Publication Date: 2017-06-20
梅庆波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: In view of the poor exposure fineness and long exposure time of traditional photosensitive adhesives, which make it difficult for printing and dyeing enterprises to greatly improve the printing of high-definition patterns, the present invention uses A Polymethylsilsesquioxane micropowder is prepared by alkali-catalyzed hydrolysis polycondensation method, and then polyvinyl alcohol is dissolved in water and mixed with polymethylsilsesquioxane micropowder and photosensitizer Stir to form an emulsion, and finally mix and emulsify it with bisphenol A epoxy resin E-35, dicyandiamide, emulsifier, defoamer, dyeing agent, etc., to obtain a high-precision printing rotary screen photosensitive adhesive

Method used

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Examples

Experimental program
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Effect test

example 1

[0016] First, measure 12mL of silane coupling agent KH-550, add 500mL of ammonia water with a mass fraction of 1%, stir at 400r / min for 2h, then place it in a constant temperature water bath at 4°C, and add 120mL of trimethylmethyl dropwise at a rate of 2mL / min Oxysilane, after the dropwise addition, continue to stir for 8 hours to obtain a mixed reaction solution; the above mixed reaction solution is left to stand for 2 hours and then filtered to obtain a filter residue, and the filter residue is washed with absolute ethanol and deionized water for 5 times in sequence, and then the washed The filter residue was placed in a drying oven, dried at 110°C to constant weight, then put into a ball mill, milled at 240r / min for 2h, and passed through a 100-mesh sieve to obtain polymethylsilsesquioxane micropowder; Add 150g of polyvinyl alcohol to 1000mL of deionized water, stir at 400r / min and heat to 98°C, after the polyvinyl alcohol is completely dissolved, cool to 60°C, then add 15m...

example 2

[0019] First, measure 10mL of silane coupling agent KH-550, add 400mL of ammonia water with a mass fraction of 1%, stir at 300r / min for 1h, then place it in a constant temperature water bath at 0°C, and add 100mL of trimethylmethyl dropwise at a rate of 1mL / min Oxysilane, after the dropwise addition, continue to stir for 6 hours to obtain a mixed reaction solution; the above mixed reaction solution is left to stand for 1 hour and then filtered to obtain a filter residue, and the filter residue is washed with absolute ethanol and deionized water for 3 times in sequence, and then the washed The filter residue was placed in a drying oven, dried at 105°C to constant weight, then put into a ball mill, milled at 180r / min for 1h, and passed through a 100-mesh sieve to obtain polymethylsilsesquioxane micropowder; Add 120g of polyvinyl alcohol to 800mL of deionized water, stir at 300r / min and heat to 95°C, after the polyvinyl alcohol is completely dissolved, cool to 50°C, then add 12mL ...

example 3

[0022]First, measure 11mL of silane coupling agent KH-550, add 450mL of ammonia water with a mass fraction of 1%, stir at 350r / min for 1h, then place it in a constant temperature water bath at 3°C, and add 110mL of trimethylmethyl dropwise at a rate of 2mL / min Oxysilane, continue to stir for 7 hours after the dropwise addition to obtain a mixed reaction solution; filter the above mixed reaction solution after standing for 2 hours to obtain a filter residue, and wash the filter residue 4 times with absolute ethanol and deionized water successively, and then wash the The filter residue was placed in a drying oven, dried at 107°C to constant weight, then put into a ball mill, milled at 200r / min for 2h, and passed through a 100-mesh sieve to obtain polymethylsilsesquioxane micropowder; weighed Add 130g of polyvinyl alcohol to 900mL of deionized water, stir at 350r / min and heat to 97°C, after the polyvinyl alcohol is completely dissolved, cool to 55°C, then add 13mL of ammonium dich...

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Abstract

The invention relates to a method for preparing a high precision printing round mesh photosensitive adhesive, belonging to the technical field of photosensitive adhesive preparation. The method for preparing the high precision printing round mesh photosensitive adhesive comprises the following steps: preparing the polymethylsilsesquioxane micro powder by using the methyltrimethoxysilane as the raw material by means of the alkali catalyzed hydrolysis condensation polymerization; dissolving the polyvinyl alcohol in water, and mixing with the polymethylsilsesquioxane micro powder and the sensitiser and the like to be stirred into an emulsion; and performing mixed emulsification with bisphenol A type epoxy resin E-35, dicyandiamide, emulsifier, defoaming agent, dyeing agent and so on to obtain the high precision printing round mesh photosensitive adhesive. According to the invention, the silicone material is added to mix with the sensitizer, the light dispersion is increased, and the exposure rate is effectively increased; the binding force of the high precision printing round mesh photosensitive adhesive prepared by the invention and the printing round mesh is strong, the press run is high, the developing is clear, the exposure sensitivity is good, the exposure time is short, and the resolution is high.

Description

technical field [0001] The invention relates to a method for preparing high-precision printing rotary screen photosensitive glue, which belongs to the technical field of photosensitive glue preparation. Background technique [0002] Photosensitive glue is an essential material for direct screen printing plate making, and it is one of the three elements that constitute modern screen printing technology. In the past, the photosensitive materials used in screen printing to make screen plates used natural polymers such as gelatin, protein synthetic polymers such as polyvinyl acetate homopolymers as adhesives, and dichromates or diazo compounds as photosensitizers. . [0003] In order to improve production efficiency, the printing and dyeing industry now mostly adopts the rotary screen printing process. The rotary screen photosensitive adhesive is a necessary raw material in the process of making patterns by wax spraying, inkjet and laser exposure. The quality of its quality is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/004G03F7/075
CPCG03F7/004G03F7/0757
Inventor 梅庆波薛荣飞张潇
Owner 梅庆波
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