Title:
COLOR PASTE FOR WATER-BASED PEN INK
Document Type and Number:
WIPO Patent Application WO/2022/267324
Kind Code:
A1
Abstract:
The present invention relates to the field of pigments, in particular, to a color paste for water-based pen ink. The color paste comprises: 50 parts of water, 45-60 parts of a toner, 15-25 parts of a water-soluble hyperbranched dispersion resin, 10-15 parts of a humectant, 5-10 parts of a first rheology modifier, 1-5 parts of a second rheology modifier, 1-5 parts of a pH regulator and 0-5 parts of a functional additive, wherein the water-soluble hyperbranched dispersion resin has a sulfonic acid group structure at the end thereof; and an unstable cross-linked interpenetrating network is formed between the first rheology modifier and the second rheology modifier via hydrogen bonds. The present invention aims to overcome the phenomena in the prior art whereby a color paste for water-based pen ink has poor storage performance and is prone to agglomeration and precipitation. The color paste for water-based pen ink in the present invention has the characteristic of high stability, has greatly improved storage stability, and does not delaminate, clump and settle during the storage process; and the color of the color paste prepared by using the formulation in the present invention is brighter.
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Inventors:
LI MINGFENG (CN)
HE GUIPING (CN)
ZHAO LEI (CN)
HE GUIPING (CN)
ZHAO LEI (CN)
Application Number:
PCT/CN2021/132429
Publication Date:
December 29, 2022
Filing Date:
November 23, 2021
Export Citation:
Assignee:
ZHEJIANG NAMEI MATERIAL TECH CO LTD (CN)
International Classes:
C08F220/06; C09D17/00; C08F251/00; C08G83/00; C09D11/17; C09D11/18
Foreign References:
| CN111269618A | 2020-06-12 | |||
| CN107936700A | 2018-04-20 | |||
| US20170275484A1 | 2017-09-28 | |||
| CN107868252A | 2018-04-03 |
Other References:
WANG, YU: "Application of Rheological Control Agents in Coatings", PAINT & COATINGS INDUSTRY, HUAGONGBU TULIAO GONGYE YANJIUSUO, NANJING, CN, vol. 31, no. 7, 1 July 2001 (2001-07-01), CN , pages 13 - 15, XP009542015, ISSN: 0253-4312
"Coating Materials and Technology, 1st Edition", 31 January 2006, CHEMICAL INDUSTRY PRESS, CN, ISBN: 7-5025-7852-8, article ZHANG, XUEMIN ET AL.: "Rheological Agent", pages: 189 - 192, XP009542172
"New Polymer Material Series, Hyperbranched polymers, 1st edition", 31 March 2005, CHEMICAL INDUSTRY PRESS, CN, ISBN: 7-5025-6480-2, article TAN, HUIMIN ET AL.: "Hyperbranched Polymers", pages: 226 - 227, XP009542173
"Theory and Application Research of Colloid and Surface Chemistry, 1st edition", 31 March 2016, HEILONGJIANG UNIVERSITY PRESS, CN, ISBN: 978-7-81129-986-1, article ZHAO, HONGBO ET AL.: "3.6.5 Dendrimer Type Surfactants", pages: 100, XP009542171
"Coating Materials and Technology, 1st Edition", 31 January 2006, CHEMICAL INDUSTRY PRESS, CN, ISBN: 7-5025-7852-8, article ZHANG, XUEMIN ET AL.: "Rheological Agent", pages: 189 - 192, XP009542172
"New Polymer Material Series, Hyperbranched polymers, 1st edition", 31 March 2005, CHEMICAL INDUSTRY PRESS, CN, ISBN: 7-5025-6480-2, article TAN, HUIMIN ET AL.: "Hyperbranched Polymers", pages: 226 - 227, XP009542173
"Theory and Application Research of Colloid and Surface Chemistry, 1st edition", 31 March 2016, HEILONGJIANG UNIVERSITY PRESS, CN, ISBN: 978-7-81129-986-1, article ZHAO, HONGBO ET AL.: "3.6.5 Dendrimer Type Surfactants", pages: 100, XP009542171
Attorney, Agent or Firm:
BEIJING FINELAND IP FIRM (CN)
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