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Low-temperature composite activated black dye and application thereof

A technology of reactive dyes and reactive blacks, used in organic dyes, dyeing methods, textiles and papermaking, etc., to save energy, reduce hydrolysis rate, and improve absolute color fixing rate.

Active Publication Date: 2014-02-05
ZHEJIANG YIDE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, few people have carried out targeted research. Reactive dyes with different components need to have the best matching dyeing technology.

Method used

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  • Low-temperature composite activated black dye and application thereof
  • Low-temperature composite activated black dye and application thereof
  • Low-temperature composite activated black dye and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A low-temperature composite reactive black dye, composed of reactive dye A shown in formula (1), reactive dye B shown in formula (2), reactive dye C shown in formula (3), and reactive dye C shown in formula (4) Reactive dye D, reactive dye E shown in formula (5) and auxiliary agents are compounded. The contents of reactive dyes A, B, C, D, E and auxiliary agents in every 100g of low-temperature composite reactive black dye are shown in Table 1.

[0033]

[0034]

[0035]

[0036] From formula (1) to formula (5) -SO 2 CH=CH 2 Both by -SO 2 CH 2 CH 2 OSO 3 It is obtained by degreasing Na and soda ash, and the composition of substituents is shown in Table 2.

[0037] In the composite reactive black dye composition of the present invention, the compounding method of each reactive dye is not particularly limited, can adopt: manufacture each reactive dye respectively, then carry out the method of compounding; The reaction liquid that contains each reactive dye g...

Embodiment 2

[0041] A low-temperature composite reactive black dye, composed of reactive dye A shown in formula (1), reactive dye B shown in formula (2), reactive dye C shown in formula (3), and reactive dye C shown in formula (4) Reactive dye D, reactive dye E shown in formula (5) and auxiliary agents are compounded. The contents of reactive dyes A, B, C, D, E and auxiliary agents in every 100g of low-temperature composite reactive black dye are shown in Table 1. From formula (1) to formula (5) -SO 2 CH=CH 2 Both by -SO 2 CH 2 CH 2 OSO 3 It is obtained by degreasing Na and soda ash, and the composition of substituents is shown in Table 2.

[0042] Application of a low-temperature composite reactive black dye for dyeing pure cotton black. The specific dyeing steps are as follows: bath ratio 1:30, adding 10% of the dye and sodium hexametaphosphate by fabric weight at room temperature, the amount of sodium hexametaphosphate 100g / L, run for 8min, heat up to 50°C at a heating rate of 3°C...

Embodiment 3～5

[0044] The compositions of the low-temperature composite reactive black dyes of Examples 3 to 5 are shown in Table 1, and the compositions of the substituents in formula (1) to formula (5) are shown in Table 2.

[0045] Table 1: The proportions of each component of the low-temperature composite reactive black dyes of Examples 1 to 5

[0046]

[0047] Table 2: Composition of substituents in Examples 1 to 5

[0048]

[0049] R 5

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Abstract

The invention belongs to the technical field of dip-dyeing of textiles and concretely relates to a low-temperature composite activated black dye and an application thereof. The low-temperature composite activated black dye is formed by compounding the following dyes in percentage by mass: 50-70% of activated dye A as shown in a formula (1), 10-25% of activated dye B as shown in a formula (2), 0-10% of activated dye C as shown in a formula (3), 0-10% of activated dye D as shown in a formula (4), 0-10% of activated dye E as shown in a formula (5) and the balances of auxiliaries. All the activated dye compounds selected by the low-temperature composite activated black dye provided by the invention have excellent compatibility; dyeing defects and color dots are not easily generated when the low-temperature composite activated black dye is used; in addition, when the low-temperature composite activated black dye is used for dyeing, low-temperature fixation can be realized, and low-alkaline and alkaline multi-adding processes are adopted, so that the hydrolysis rate of the dye is greatly reduced, and then, the absolute fixation rate of the dye is greatly increased.

Description

technical field [0001] The invention belongs to the technical field of exhaust dyeing of textiles, and relates to a low-temperature composite reactive black dye suitable for dyeing cellulose fibers or cellulose-containing fiber fabrics and an application thereof. Background technique [0002] The printing and dyeing industry has always been an industry with high energy consumption, high water consumption and high pollution. Especially in recent years, issues such as energy and environmental protection have attracted more and more attention from the country and the whole society, which has brought greater pressure to the printing and dyeing industry. New dyes, new additives, and new processes are needed to solve or alleviate these pressures. At present, a large number of reactive dyes used for dyeing cellulose fibers have problems such as high energy consumption, low dyeing rate, resulting in a large amount of sewage, and the need to add a large amount of inorganic salts and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/24D06P1/62D06P1/673D06P3/66D06P1/38
Inventor 孟胜锋栾金鑫秦杰锋潘克存康定
Owner ZHEJIANG YIDE CHEM
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