Title:
PREPARATION METHOD FOR AND APPLICATION OF DISPERSED EMERALD BLUE DYE
Document Type and Number:
WIPO Patent Application WO/2020/147343
Kind Code:
A1
Abstract:
Disclosed by the present invention is a method for preparing a dispersed emerald blue dye, comprising the following steps: 1. blending a dye monomer or a finished dye and an additive, a blended mixed dye comprising a dye monomer A represented by formula (I) in a mass fraction of 0.1-75%, and a dye monomer B represented by formula (II) in a mass fraction of 0.1-75%, the remainder being the additive; (I), (II); 2. adding an appropriate amount of water and grinding until evenly dispersed; 3. spray drying. A dye prepared by using the described method has the advantages of a high dye uptake rate, good washing fastness, excellent fastness, little heat-resistant migration, high strength and a relatively cheap price.
Inventors:
WU LIFU (CN)
Application Number:
PCT/CN2019/109412
Publication Date:
July 23, 2020
Filing Date:
September 30, 2019
Export Citation:
Assignee:
ZHEJIANG BOAO DYESTUFF IND CO LTD (CN)
International Classes:
C09B67/22; C09B67/38; D06P1/22; D06P3/54
Foreign References:
| CN109575641A | 2019-04-05 | |||
| CN108727866A | 2018-11-02 | |||
| CN107418249A | 2017-12-01 | |||
| JPH1121465A | 1999-01-26 | |||
| JPH1129716A | 1999-02-02 |
Attorney, Agent or Firm:
SUZHUO TUOYUN INTELLECTUAL PROPERTY AGENCY (CN)
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