Yellow reactive dyes for wool and preparation method thereof

A technology of reactive yellow and dyes, applied in the field of dyes, can solve the problems of poor fastness index of acid dyes, a large amount of dye-containing wastewater, low coloring rate, etc.
CN101418134AInactive Publication Date: 2009-04-29TIANJIN DEK CHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN DEK CHEM
Publication Date
2009-04-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a yellow wool reactive dye. The general formula of the yellow wool reactive dye is as shown in (I). Moreover, the invention also relates to a method for preparing the yellow wool reactive dye. Compared with the acidic yellow dye in the prior art, the dye obviously improves the dyeing performance. Moreover, the preparation method is simple and reduces pollution.
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Description

technical field

[0001] The invention relates to the technical field of dyes, in particular to reactive yellow dyes and a preparation method thereof. Background technique

[0002] Reactive dyes have the characteristics of bright color, excellent application performance and strong practicability. In particular, the active groups in the molecule form stable chemical bonds with fibers, which makes their coloring rate and fastness after dyeing better than acid dyes.

[0003] Although a series of reactive dyes for wool have been developed at present, they are expensive and used less. So most wool fabrics are still dyed with acid dyes. Due to its low dyeing rate, a large amount of dye-containing wastewater is produced during use, which is not conducive to the treatment of up-to-standard discharge, and the fastness indicators after dyeing with acid dyes are poor. Contents of the invention

[0004] Therefore, the object of the present invention is to provide a kind of active yell...

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
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