Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Preparation method of degradable waterborne polyurethane ink and product thereof

A water-based polyurethane and water-based ink technology, applied in inks, household appliances, applications, etc., can solve the problems of excessive toxic volatiles, difficult to make water-based resins, affecting printing stability, etc., and achieve good adhesion performance and good pigment wetting. sexual effect

Pending Publication Date: 2022-08-09
华工丽颜(广东)新材料科技有限公司 +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This system is relatively successful in the flexographic printing of paper, but it is not suitable for the open high-shear environment of gravure, because the emulsion is easily broken and deteriorated by high shear force, which affects the stability of printing; at the same time, in In terms of plastic back printing, most acrylic emulsions contain benzene and acrylic small molecule monomers, which cause problems such as unpleasant smell and excessive toxic volatiles in the packaging.
[0003] Traditional solvent-based inks use a large number of natural materials as raw materials, such as tung oil, rosin, linseed oil and soybean oil. These materials have good pigment wettability, bright ink colors and high gloss, but these materials are not hydrophilic and difficult to produce. water-based resin

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

[0041] 1. Preparation of degradable waterborne polyurethane F

[0042] (1) 900 parts of soybean oil were added to the reaction flask with stirring, thermometer and reflux condenser, nitrogen was introduced, and the temperature was raised to 150°C. For 4 hours, add 900 parts of polypropylene glycol 600, keep the temperature at 220°C, and cool down when the acid value is less than 45 mg (in KOH / g) to obtain polyester intermediate A.

[0043] (2) 400 parts of the intermediate A, 130 parts of polyether polyol 2000 type, 78 parts of ethyl acetate were added to the reaction flask, nitrogen was passed through, the temperature was raised to 80°C, and isophorone di 176 parts of isocyanate (IPDI), controlled temperature not to exceed 90° C., reacted for 4 hours to form a prepolymer, which was used for later use.

[0044] (3) take 160 parts of the prepolymer and add 20 parts of dehydrated alcohol, drop 8 parts of chain extender isophorone diamine (IPDA) in 1 hour, then react for 1 hour,...

Embodiment 2

[0048] 1. Preparation of degradable waterborne polyurethane

[0049] (1) 500 parts of linseed oil were added to the reaction flask with stirring, thermometer and reflux condenser, nitrogen was introduced, the temperature was raised to 150°C, the nitrogen was stopped, 100 parts of maleic acid were added, the temperature was raised to 230°C, and the temperature was kept warm. For 4 hours, add 900 parts of polypropylene glycol 600, keep the temperature at 220°C, and cool down when the acid value is less than 55 mgKOH / g to obtain polyester intermediate A2.

[0050] (2) Add 400 parts of the intermediate A2, 130 parts of polyether polyol 2000 type, and 78 parts of ethyl acetate into the reaction flask, pass nitrogen, heat up to 80°C, and slowly drop isophorone in one hour 176 parts of diisocyanate (IPDI), the temperature was controlled not to exceed 90° C., and the reaction was carried out for 4 hours to form a prepolymer, which was used for later use.

[0051] (3) take 160 parts o...

Embodiment 3

[0055] 1. Preparation of degradable waterborne polyurethane

[0056] (1) 400 parts of tung oil were added to the reaction flask with stirring, thermometer and reflux condenser, nitrogen was introduced, and the temperature was raised to 150°C. hour, add 900 parts of polypropylene glycol 600, keep the temperature at 220°C, and cool down when the acid value is less than 60 mgKOH / g to obtain polyester intermediate A3.

[0057] (2) 400 parts of the intermediate A3, 130 parts of polyether polyol 2000 type, and 78 parts of ethyl acetate were added to the reaction flask, nitrogen was passed through, the temperature was raised to 80°C, and isophorone was slowly added dropwise within one hour. 176 parts of diisocyanate (IPDI), the temperature was controlled not to exceed 90° C., and the reaction was carried out for 4 hours to form a prepolymer, which was used for later use.

[0058] (3) take 160 parts of the prepolymer and add 20 parts of dehydrated alcohol, drop 8 parts of chain exten...

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

PropertyMeasurementUnit
freshnessaaaaaaaaaa
peel strengthaaaaaaaaaa
freshnessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of degradable waterborne polyurethane ink and a product thereof. The aqueous polyurethane resin composition is characterized by comprising a solution-type aqueous polyurethane resin and a coloring agent, wherein the solution-type aqueous polyurethane resin is formed by reacting a maleic acid adduct of a natural material containing an unsaturated olefinic bond with a polyester intermediate of a polypropylene glycol ester, diisocyanate, other polyether polyol, a chain extender and a neutralizing agent; and the water-based ink is composed of ethanol and water which are used as solvents. The ratio of water in the solvent is 50% by weight or more. The natural material containing unsaturated olefinic bonds is one or more of rosin, tung oil, linseed oil or soybean oil. The technical scheme provided by the invention has the advantages that the obtained product has good pigment wettability, dryness and printability, has good adhesion to a base material, is easy to degrade, and better meets new environmental protection requirements. The ink product can be used for surface printing or inner printing of plastics or aluminum foils, and the printing mode is flexographic printing or intaglio printing.

Description

technical field [0001] The invention relates to the technical field of chemistry and chemical industry, in particular to a preparation method of a degradable water-based polyurethane ink and a product thereof. Background technique [0002] Water-based acrylic resins are mostly used as binders for existing water-based inks, including solution-based acrylic resins and emulsion-based acrylic resins. This system has been successfully applied in flexographic printing of paper, but it is not suitable for an open high shear environment such as gravure, because the emulsion is easily broken and deteriorated by high shear force, which affects the stability of printing. In terms of plastic printing, most of acrylic emulsions contain benzene and acrylic small molecular monomers, which cause problems such as unpleasant smell of packaging and excessive toxic volatiles. [0003] Traditional solvent-based inks use a large number of natural materials as raw materials, such as tung oil, ros...

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): C09D11/102C08G18/76C08G18/75C08G18/66C08G18/42C08G18/48C08G18/12
CPCC09D11/102C08G18/4288C08G18/4018C08G18/7621C08G18/755C08G18/12C08G18/3234
Inventor 魏洪涛张书林陈广学陈镇然钱武胜朱琦
Owner 华工丽颜(广东)新材料科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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