High-precision printing circular screen photographic emulsion and preparation method thereof

Abstract

The invention discloses a high-precision printing circular screen photographic emulsion and a preparation method thereof; the photographic emulsion comprises binder, cross-linking agent, photosensitizer, flexibilizer, catalyst, diluent, stabilizing agent, sensitizer, emulsifying agent, antifoaming agent, fire retardant, buffering material, diluent solution and light sensitive agent; the photographic emulsion is prepared by steps of diluting, stirring, uniformly mixing and standing; the high-precision printing circular screen photographic emulsion has the following advantages that: the granulegrain diameter of the high-precision printing circular screen photographic emulsion is less than 2 microns and the granule has strong bonding force with the printing circular screen, strong chemical corrosion resistance and friction resistance and high printing resistance; the circular screen platemaking is capable of being developed clearly without blocking the screen holes; therefore, the stretching performance of the printing circular screen in printing process is improved; the service life of the printing circular screen is prolonged, the exposing time of the circular screen is shortened and bonding firmness of the emulsion layer and the printing circular screen is improved; in addition, the washing resistance firmness and resolution of the emulsion layer are high; volatilize organic compound is not produced in the preparation process, so the emulsion and the preparation method have less pollution on the environment and low harm on human body.

Description

technical field [0001] The invention relates to a photosensitive glue, in particular to a high-precision printing cylinder photosensitive glue and a preparation method thereof, belonging to the field of photosensitive glue. Background technique [0002] 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 the key to the printing quality. However, the rotary screen photosensitive adhesive produced under the current technical conditions generally has the disadvantages of poor exposure fineness, long exposure time and low printing durability, which makes it difficult for printing and dyeing enterprises to print high-definition patterns. Larger improvement, low printing and dyeing grades, and the defects of exposure time and pri...

AI Technical Summary

Problems solved by technology

[0002] 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 the key to the printing quality. However, the rotary screen photosensitive adhesive produced under the current technical conditions generally has the disadvantages of poor exposure fineness, long exposure time and low printing durability, which makes it difficult for printing and dyeing enterprises to print high-definition patterns. Larger improvement, low printing and dyeing grades, and the defects of exposure time and printing durability have caused high printing and dyeing costs and low profits for printing and dyeing companies, and most of the commercially available rotary screen photosensitive adhesives now add organic solvents. The volatilization of organic solvents during the process and the generation of irritating smoke during the baking process not only pollute the environment, but also cause certain harm to the human body.