Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Treatment-free environment-friendly coating for printing plate and preparation method of treatment-free environment-friendly coating

A printing plate, treatment-free technology, applied in the field of printing plates, can solve problems such as affecting the performance of use and easily causing microbial enrichment.

Inactive Publication Date: 2021-10-19
安徽强邦新材料股份有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The Chinese patent with application number 201910057832.X discloses a protective coating for a treatment-free printing plate, whose components include 50-70 parts of gelatin, 20-30 parts of polyvinyl alcohol, 1-3 parts of compounding additives, and A coating method for the protective coating of a treatment-free printing plate. The patent uses gelatin and PVA as the base material of the coating, which has good environmental performance. Among them, gelatin has good biocompatibility and degradability, and has good environmental protection. performance, but gelatin is obtained by hydrolysis of collagen in connective tissues such as animal skin and bones. The main component is amino acid, which has certain nutrients, so it is easy to cause microbial enrichment and affect its performance.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Treatment-free environment-friendly coating for printing plate and preparation method of treatment-free environment-friendly coating
  • Treatment-free environment-friendly coating for printing plate and preparation method of treatment-free environment-friendly coating
  • Treatment-free environment-friendly coating for printing plate and preparation method of treatment-free environment-friendly coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Preparation of modified additives:

[0052] Step S11: Add 4-hydroxy-4'-methylbenzophenone and zinc powder into the flask, then add tetrahydrofuran, blow in nitrogen, and drop tetrahydrofuran into the flask under the condition of temperature -30°C and speed of 100r / min. Titanium chloride, after the dropwise addition, stir at room temperature for 1 hour, then heat up to 90°C for reflux reaction for 10 hours, and then perform post-treatment. The post-treatment steps are: cooling, suction filtration, rotary evaporation, and adding a hydrochloric acid solution with a mass fraction of 10%. , and then add toluene for extraction, after drying with anhydrous sodium sulfate, rotary evaporation and recrystallization, the intermediate 1 is obtained;

[0053] Step S12: Add intermediate 1 and dichloromethane to the flask, stir at room temperature for 10 min, then add 3,4-dihydropyran and pyridine p-toluenesulfonate into the flask at a temperature of 22°C, and stir at 22°C 1h, and th...

Embodiment 2

[0060] Preparation of modified additives:

[0061] Step S11: Add 4-hydroxy-4'-methylbenzophenone and zinc powder into the flask, then add tetrahydrofuran, blow in nitrogen, and drop tetrahydrofuran into the flask under the condition of temperature -30°C and speed of 100r / min. Titanium chloride, after the dropwise addition, stir at room temperature for 2 hours, then heat up to 90°C for reflux reaction for 10 hours, and then perform post-treatment. The post-treatment steps are: cooling, suction filtration, rotary evaporation, and then adding a hydrochloric acid solution with a mass fraction of 10%. , and then add toluene for extraction, after drying with anhydrous sodium sulfate, rotary evaporation and recrystallization, the intermediate 1 is obtained;

[0062] Step S12: Add intermediate 1 and dichloromethane to the flask, stir at room temperature for 10 min, then add 3,4-dihydropyran and pyridine p-toluenesulfonate into the flask at a temperature of 22°C, and stir at 24°C 1h, ...

Embodiment 3

[0069] Preparation of modified gelatin

[0070] Described modified gelatin is made by following steps:

[0071] Step S1: Add gelatin and phosphate buffer solution with a pH of 10 into the beaker, stir for 3 minutes, swell at room temperature for 40 minutes, then stir for 1 hour at a temperature of 55°C and a speed of 200 r / min, and obtain a gelatin solution after stirring;

[0072] Step S2: Add the gelatin solution into the flask, then add the modification aid prepared in Example 1, stir and react for 6 hours at a temperature of 50°C and a rotation speed of 300r / min, and perform post-treatment after the reaction. The post-processing step is: Freeze-dried at -45°C for 12 hours, then washed three times with methanol at 40°C, and washed three times with deionized water, and then freeze-dried at -60°C for 10 hours to obtain modified gelatin.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a treatment-free environment-friendly coating for a printing plate and a preparation method of the treatment-free environment-friendly coating, belonging to the technical field of printing plates. The treatment-free environment-friendly coating for the printing plate comprises the following raw materials by weight: 40-60 parts of modified gelatin, 10-20 parts of polyvinyl alcohol, 0.3-0.5 part of an antifoaming agent, 0.2-0.6 part of a leveling agent, 0.2-0.6 part of a cosolvent, and 0.3-0.8 part of a transparent agent. The coating is prepared through the steps of dispersing and mixing, coating, drying and shaping and the like; a modification additive with an epoxy group is prepared, can react with secondary amino group of gelatin to modify the gelatin, and has an antibacterial group, so the modified gelatin not only has good degradation performance but also has good antibacterial performance; and the problems that the coating prepared from gelatin has certain nutritional ingredients, easily causes microorganism enrichment and is affected in use performance are effectively solved.

Description

technical field [0001] The invention relates to the technical field of printing plates, in particular to a treatment-free printing plate environmental protection coating and a preparation method thereof. Background technique [0002] From a broad perspective, the processing-free CTP plate means that after the plate is exposed and imaged on the direct plate-making equipment, it can be printed on the machine without any subsequent processing procedures. Of course, it does not require chemical development and processing. Plate processing; from a narrow perspective, it means that the plate does not require chemical development after exposure and imaging on the direct plate-making machine, but there will be some non-chemical processing procedures, such as the removal of plate ablation waste, coating protective glue, etc. Work. [0003] There have been three generations of direct-to-model processing-free technology, namely thermal ablation, polarity conversion and hot-melt thermo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D189/00C09D129/04C09D5/14C08H1/00C07F9/655
CPCC09D189/00C09D5/14C08H1/00C07F9/65502C08L29/04
Inventor 孙长义郭俊成李长华
Owner 安徽强邦新材料股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com