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Composite reactive grey for printing and dyeing and clean production process thereof

A reactive ash and printing technology, applied in the field of dyes, can solve the problems of inability to meet the printing process, poor lifting power of dark printing, and low product solubility, and achieve the effects of bright color, good chlorine immersion fastness, and high solubility.

Inactive Publication Date: 2013-05-15
无锡润新染料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this process are: the pollution of three wastes is large, a large amount of process sewage is produced, the solubility of the product is low, only about 20g / l (50°C), it cannot meet the printing process of dry powder mixing and automatic mixing systems, the lifting force is poor, and dark printing lift difference

Method used

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  • Composite reactive grey for printing and dyeing and clean production process thereof
  • Composite reactive grey for printing and dyeing and clean production process thereof
  • Composite reactive grey for printing and dyeing and clean production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Reactive gray dyes that can be used for printing and dyeing, dissolved by 1 part (mole parts, the same below) 1-amino-2-naphthol-6-nitro-4-sulfonic acid at pH5.5~7, 15℃ Aqueous solution, add 1 part of sodium nitrite to make a mixed solution, add 3 parts of hydrochloric acid at 0 ~ 10 ° C to carry out diazotization, the prepared diazonium salt and 1.01 parts of J acid solution and liquid caustic soda are at pH 6.5 ~ 7.5, react overnight under the conditions to obtain a coupled chromophore. 0.55 parts of cobalt sulfate and 1.6 parts of liquid caustic soda, or coupling chromophore with 0.55 parts of chromium sulfate and 2.2 parts of sodium acetate for metal complexation reaction at 100-105 ° C, cooling and neutralizing to pH 6.5-7.5 for later use. 1 part of para-ester and 1.01 parts of cyanuric chloride are condensed once at pH 3-6 and temperature 8-15°C, and the obtained primary condensation liquid is condensed with the above-mentioned metal complexing liquid for the seco...

Embodiment 2

[0029] The active ash powder and C.I. active black 5 prepared by the method in Example 1 are mixed according to the mass weight ratio of 15 parts of cobalt, 80 parts of chromium, and 5 parts of C.I. Starch powder and 2% dustproof agent are standardized to obtain commercial products.

Embodiment 3

[0031] Active ash powder and C.I. active black 5 prepared by the method in Example 1 are mixed according to the mass weight ratio of 15 parts of cobalt, 80 parts of chromate, and 5 parts of C.I. Agent NNO and 2% dustproof agent, standardized to obtain commercial products.

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Abstract

The invention discloses a composite reactive grey for printing and dyeing and a clean production process thereof. The composite reactive grey consists of active ingredients, namely a chromium grey dye component, a cobalt grey dye component and C.I. reactive black 5 with the structure shown in the specifications in a weight ratio of (10-20):(55-80):(5-10); and the dye has the characteristics of high solubility, particularly low temperature solubility, high fastness to light and chlorine, mild reactivity, low substantivity and high chromatic light controllability. The replacement of a reductivegrey dye under the common conditions can be met; printing and dyeing cost is reduced; printing and dyeing processes are simplified; energy conservation and emission reduction are realized; three-waste emission in dye production is reduced; and clean production is achieved.

Description

technical field [0001] The invention belongs to the technical field of dyes, in particular to a composite active gray dye, and simultaneously provides a clean synthesis process for the dye. Background technique [0002] Traditional activated ash generally uses 4-nitro-2 amino-phenol diazonium salt and H acid for alkaline coupling, after the chromogen is salted out and refined, it is complexed with cobalt sulfate, and then condensed with cyanuric chloride, and finally ammonia water is added Carry out secondary condensation, dry and standardize after salting out to obtain commercial products. The disadvantages of this process are: the pollution of three wastes is large, a large amount of process sewage is produced, the solubility of the product is low, only about 20g / l (50°C), it cannot meet the printing process of dry powder mixing and automatic mixing systems, the lifting force is poor, and dark printing Poor lift. Contents of the invention [0003] The purpose of the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/22C09B67/24
Inventor 史锦峰曾建徽
Owner 无锡润新染料有限公司
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