Title:
USE OF QUATERNARY AMMONIUM SALT DERIVATIVE IN PREPARATION OF RED PIGMENT, RED PIGMENT, AND PREPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/088293
Kind Code:
A1
Abstract:
In the present application, in order to solve the problems of pigment wettability, poor dispersibility, high viscosity, and poor storage stability, a quaternary ammonium salt derivative is used in the preparation of an azo red pigment for a water-based UV ink; a red pigment and a preparation method therefor are provided, and a water-based UV red ink using the red pigment is further provided. The preparation method for a red pigment comprises a diazotization reaction, the preparation of a coupling liquid, a coupling reaction, post-treatment and other processes; a quaternary ammonium salt derivative is added during the preparation of the coupling solution, and an anionic surfactant and nonionic surfactant compound solution is added during post-treatment, enabling the pigment to have good wettability, high dispersibility, high tinting strength, low viscosity and good storage stability in a water-based UV system.
Inventors:
JI WEI (CN)
LI XIUMEI (CN)
WANG HE (CN)
YAN YONGHAI (CN)
WANG JIAN (CN)
ZHANG HAI (CN)
DOU BAICHAO (CN)
LI XIUMEI (CN)
WANG HE (CN)
YAN YONGHAI (CN)
WANG JIAN (CN)
ZHANG HAI (CN)
DOU BAICHAO (CN)
Application Number:
PCT/CN2022/132222
Publication Date:
May 25, 2023
Filing Date:
November 16, 2022
Export Citation:
Assignee:
LONGKOU UNION CHEMICAL CO LTD (CN)
International Classes:
C09B29/00; C09B67/18; C09D11/037; C09D11/101
Foreign References:
| CN114085543A | 2022-02-25 | |||
| US4957841A | 1990-09-18 | |||
| CN103374238A | 2013-10-30 | |||
| CN101565557A | 2009-10-28 | |||
| CN1569968A | 2005-01-26 |
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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