Title:
AZO DYE DEDICATED FOR WATER-FREE DYEING OF NATURAL FIBER IN SUPERCRITICAL CO 2 FLUID, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/048018
Kind Code:
A1
Abstract:
Disclosed are a reactive disperse dye dedicated for water-free dyeing of a natural fiber in supercritical CO 2 fluid, and an intermediate thereof. A long alkane chain bridge group is comprised between a dye parent chromophore of the reactive disperse dye and an active group, the supply-absorption effect of an electron cloud of a conjugated system can be effectively promoted, the bathochromic effect is enhanced, the influences of the active group and a reaction thereof on a dye chromophore system are efficiently reduced, and the acid-alkali resistance stability of the dye color is improved. In addition, the compatibility between the dye and the supercritical fluid, and the dying performance on the natural fiber are also advantageously improved. Also disclosed are an intermediate of the reactive disperse dye, and a preparation method for the reactive disperse dye.
Inventors:
LONG JIAJIE (CN)
YAN KAI (CN)
XU DAO (CN)
YU JINLIN (CN)
YAN KAI (CN)
XU DAO (CN)
YU JINLIN (CN)
Application Number:
PCT/CN2018/117077
Publication Date:
March 12, 2020
Filing Date:
November 23, 2018
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
JIANGSU DANMAO TEXTILE CO LTD (CN)
NANTONG TEXTILE AND SILK INDUSTRIAL TECH RESEARCH INSTITUTE (CN)
JIANGSU DANMAO TEXTILE CO LTD (CN)
NANTONG TEXTILE AND SILK INDUSTRIAL TECH RESEARCH INSTITUTE (CN)
International Classes:
C07C245/06; C09B62/085; C07C245/20; D06P1/18; D06P1/382
Domestic Patent References:
| WO2017028307A1 | 2017-02-23 |
Foreign References:
| GB2267095A | 1993-11-24 | |||
| CN105440726A | 2016-03-30 | |||
| CN104016880A | 2014-09-03 |
Attorney, Agent or Firm:
CENTRAL SOUTH WELL INTELLECTUAL PROPERTY OFFICE (CN)
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