Heterocycle alkaline-washable carboxylic acid ethyl ester type disperse dye and preparation method thereof

A technology of heterocyclic alkali-washable ethyl carboxylate type and alkali-washable ethyl carboxylate type, which is applied in the field of heterocyclic alkali-washable ethyl carboxylate type disperse dyes and its preparation, and can solve the potential safety hazards of hydrosulfite and the existing Fire hazards, easy spontaneous combustion of sodium hydrosulfide and other problems, to achieve bright color, reduce the generation of harmful substances and three wastes, and excellent alkali washable performance
CN105086498AInactive Publication Date: 2015-11-25ZHEJIANG SCI-TECH UNIV
6 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG SCI-TECH UNIV
Publication Date
2015-11-25
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses heterocycle alkaline-washable carboxylic acid ethyl ester type disperse dye. The molecular structure of the disperse dye comprises carboxylic acid ethyl ester groups, and the structural general formula of the carboxylic acid ethyl ester groups is D-COOC2H5, wherein the D refers to a color body with a heterocycle azo structure. The invention further provides a preparation method of the heterocycle alkaline-washable carboxylic acid ethyl ester type disperse dye, existing cyanophoric disperse dye is selected as a raw material, and an alcoholysis method is applied to preparation of the heterocycle alkaline-washable carboxylic acid ethyl ester type disperse dye. The disperse dye has good dyeing property, and has high dye-uptake rate and color fastness when being applied to Dacron dyeing; during post-treatment of PET (polyethylene terephthalate) fiber dyeing, acid dye containing water soluble groups and harmfulless ethyl alcohol are generated only through alkaline solution treatment of fibers to achieve ester group hydrolysis, and the obtained acid dye can be recycled through acidification and the like.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a heterocyclic alkali-washable ethyl carboxylate type disperse dye and a preparation method thereof. Background technique

[0002] The output of my country's disperse dyes ranks first in the world, but at present, dye manufacturing enterprises generally have problems such as outdated varieties and backward technology, resulting in low profit margins of domestic disperse dyes, and at the same time, the increasing pressure on environmental protection makes the development of the entire textile industry face predicament. The development of new high-fastness dyes and the upgrading of existing dyestuff production technology to increase the technical content of dyestuffs will be the only way for the development of the dyestuff industry. In the face of fierce market competition, the future development of disperse dyes will mainly focus on the following aspects: (1) In view of the long synthetic route of anthraquinone-type disperse dye...

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