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

Water-based varnish wear-resistant coating for digital printing and preparation method thereof

A wear-resistant coating and digital printing technology, which is applied in the field of varnishes, can solve the problems that the wear resistance of varnishes cannot meet our needs, and achieve the effects of maintaining gloss, reasonable process design, and simple preparation steps

Active Publication Date: 2020-12-04
南通瀚彩科技有限公司
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nowadays, coating and glazing technology has been adopted by more and more printing manufacturers, so the demand for varnish is rising continuously. Requirements such as high strength are getting higher and higher. Nowadays, silica is generally added to the glazing oil prepared on the market as a wear-resistant material to improve its wear resistance, but the wear resistance of the prepared glazing oil is still not satisfactory. our needs

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of water-based glazing oil wear-resistant coating for digital printing, comprising the following steps:

[0035] Step 1: Take nanocellulose and deionized water, ultrasonically disperse for 5 minutes, add sodium hydroxide and epichlorohydrin, stir and react at 60°C for 3 hours, the stirring speed is 1000r / min, centrifuge, and dialyze the precipitated pure water until the pH is 11. Take the dialyzed suspension again, add ammonia water, continue to stir and react at 60°C for 3 hours, continue to dialyze the reaction product with pure water to neutrality, and dry to obtain amidated cellulose;

[0036] Step 2: Take silicon dioxide and carbon powder, dissolve them in absolute ethanol, disperse them ultrasonically for 3 hours, dry them and place them in an argon environment, heat them up to 1450°C at a heating rate of 5°C / min, heat them for 2 hours, and cool them with the furnace. Obtain silicon dioxide-silicon carbide composite material;

[0037] Step 3: T...

Embodiment 2

[0043] A preparation method of water-based glazing oil wear-resistant coating for digital printing, comprising the following steps:

[0044] Step 1: Take nanocellulose and deionized water, ultrasonically disperse for 8 minutes, add sodium hydroxide and epichlorohydrin, stir and react at 62°C for 3.5 hours, the stirring speed is 1500r / min, centrifuge, and dialyze the precipitated pure water to pH 11, then take the dialyzed suspension, add ammonia water, continue to stir and react at 63°C for 3.5 hours, continue to dialyze the reaction product with pure water until it is neutral, and dry it to obtain amidated cellulose;

[0045] Step 2: Take silicon dioxide and carbon powder, dissolve them in absolute ethanol, disperse them ultrasonically for 3.5 hours, dry them and place them in an argon environment, heat them up to 1480°C at a heating rate of 6°C / min, keep them warm for 2.5h, and heat them in the furnace Cool to obtain a silicon dioxide-silicon carbide composite;

[0046] Ste...

Embodiment 3

[0052] A preparation method of water-based glazing oil wear-resistant coating for digital printing, comprising the following steps:

[0053] Step 1: Take nanocellulose and deionized water, ultrasonically disperse for 10 minutes, add sodium hydroxide and epichlorohydrin, stir and react at 65°C for 4 hours, the stirring speed is 2000r / min, centrifuge, and dialyze the precipitated pure water until the pH is 12. Take the dialyzed suspension, add ammonia water, continue to stir and react at 65°C for 4 hours, continue to dialyze the reaction product with pure water until neutral, and dry to obtain amidated cellulose;

[0054] Step 2: Take silicon dioxide and carbon powder, dissolve them in absolute ethanol, disperse them ultrasonically for 4 hours, dry them and place them in an argon environment, heat them up to 1500°C at a heating rate of 6°C / min, heat them for 3 hours, and cool them with the furnace. Obtain silicon dioxide-silicon carbide composite material;

[0055] Step 3: Take...

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 water-based varnish wear-resistant coating for digital printing and a preparation method thereof. The wear-resistant coating comprises the following raw materials in parts byweight: 30-50 parts of modified latex, 3-5 parts of a film-forming additive, 2-6 parts of a leveling agent and 3-7 parts of an antifoaming agent. The modified latex comprises the following raw materials in parts by weight: 10-20 parts of a modified composite material, 8-12 parts of aminated cellulose, 50-60 parts of methyl methacrylate, 20-25 parts of butyl acrylate, 2-5 parts of acrylic acid, 4-7 parts of hydroxyethyl acrylate, 0.5-1 part of an initiator and 2-2 parts of an emulsifier. The coating comprises the modified latex, the film-forming additive, the leveling agent and the antifoamingagent, the modified latex is mainly prepared from the modified composite material, aminated cellulose, methyl methacrylate, butyl acrylate and other components, methyl methacrylate, butyl acrylate and other acrylate components are used as matrixes, the modified composite material and aminated cellulose are added into the matrixes, and thus the wear resistance of the coating is improved while thevarnish gloss, adhesive force and other properties are maintained.

Description

technical field [0001] The invention relates to the technical field of glazing oil, in particular to a water-based glazing oil wear-resistant coating for digital printing and a preparation method thereof. Background technique [0002] Glazing oil refers to a liquid that is coated on the surface of printed matter to increase gloss, abrasion resistance and water resistance. Varnishes include water-based varnishes, oil-based varnishes, UV varnishes, and alcohol-soluble varnishes. At present, water-based varnish is the most widely used in China, because it has very good environmental protection performance. [0003] Nowadays, coating and glazing technology has been adopted by more and more printing manufacturers, so the demand for varnish is rising continuously. Requirements such as high strength are getting higher and higher. Nowadays, silica is generally added to the glazing oil prepared on the market as a wear-resistant material to improve its wear resistance, but the wear ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/10C09D151/02C08F292/00C08F251/02C08F220/14C08F220/18C08F220/06C08F220/20
CPCC09D151/10C08F292/00C08F251/02C08L2205/02C08L51/02C08F220/14C08F220/1804C08F220/06C08F220/20
Inventor 韩琪李进赵祥董留彬余尚军
Owner 南通瀚彩科技有限公司
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