Reactive acid yellow dye for nylon and preparation method thereof

A acid yellow and reactive technology, applied in reactive dyes, dyeing methods, azo dyes, etc., can solve the problems of dye shedding, poor fastness, fading and discoloration, etc., and achieve good fastness performance, good wet fastness, The effect of strong binding ability
CN101575459AInactive Publication Date: 2009-11-11安徽省凤阳染料化工有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
安徽省凤阳染料化工有限公司
Publication Date
2009-11-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a reactive acid yellow dye for nylon and a preparation method thereof, comprising: cyanuric chloride is reacted with m-phenylenediaminedisulfonic acid by condensation reaction; excessive sodium nitrite is added to perform diazotization; then 15% 1-(2',5'-dicloro-4'-sulfo)phenel-3-methyl-5-pyrazolonem solution is added and mixed evenly, the obtained solution is adjusted by alkali solution to show weak acidic pH and performs couple reaction; finally 20% p-(beta-sulfatoethylsulfonyl)aniline solution is added, appropriate acidity and temperature are adjusted and reactive acid yellow dye is obtained when the temperature is preserved. Not only physical bond but also chemical bonding exists between the reactive acid yellow and nylon fiber, thus showing strong combining capacity. In 30-60 DEG C routine tests, the dyed fabric of invention can be washed for a plurality of times without fading and has good wet-fastness; even on the washing conditions of steaming and detergent, the fabric also shows good fastness performance and migration, bright color and high degree of exhaustion.
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Description

technical field

[0001] The invention relates to the field of organic chemical synthesis, in particular to a reactive acid yellow for nylon and a preparation method thereof. Background technique

[0002] Dyestuffs are organic compounds that impart bright and firm colors to other substances. Colorful dyes and pigments dress up the colorful world, and colors are closely related to our lives. Natural fiber, chemical fiber, plastic, rubber, food, medicine, cosmetics, ink, paint, bamboo, wood, rattan, grass, metal, leather, ceramics, enamel, glass, cement, building materials, paper, ink, wax and other cultures The coloring of articles requires us to synthesize tens of thousands of dyes (pigments) of different colors to meet the requirements of different fields and levels. At present, the dye (pigment) material synthesis technology has been transformed from the traditional type to the development of high-tech functional dyes and green environmental protection dye (pigment) materi...

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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