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Active red dye composition

A technology of reactive red dye and composition, which is applied in the field of reactive red dye composition for textile printing and dyeing, can solve the problem that the low-salt dyeing effect of reactive dye is not reflected, and achieves small dyeing condition dependency, bright color and high color fixation rate. Effect

Inactive Publication Date: 2009-10-14
SHANGHAI KEHUA DYESTUFF IND +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, red is one of the most widely used color systems in reactive dyes. In addition to being used alone for printing and dyeing of textiles, it can also be used as an important component of blending reactive blue, reactive black and other bulk varieties. Patents related to compounding such as CN1112947, CN1810893 and US6090163, etc., but the low-salt dyeing effect of the above-mentioned reactive dyes does not reflect

Method used

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  • Active red dye composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 80g synthetically obtained dye powder A of formula (I-1), 20g synthetically obtained dye powder B of formula (II-1) and 20g potassium chloride powder are mechanically blended and applied to cotton fiber dyeing to obtain bright-coloured red tint.

[0036] Dyeing method: Dissolve 2g of the composite reactive dye powder prepared above in 400g of water, add 1500g (containing 50g of Yuanming powder) aqueous solution, add 100g of cotton fiber to the dye solution at 40°C for dyeing, after 50 minutes, add 100g (containing 8g sodium hydroxide and 10g sodium carbonate) in water. Keep the dye solution at 80°C for 50 minutes to fix the color. Then rinse the dyed matter, soap it with non-ionic detergent for 15 minutes, then rinse and dry it to get a bright red cotton cloth with good dyeing property and excellent color fastness.

[0037]

Embodiment 2

[0039] The dye powder A of 75g formula (I-2), the dye powder B of 25g formula (II-2) and 20g potassium chloride powder are carried out mechanical blending, then apply to cotton fiber dyeing according to embodiment 1 dyeing method, can obtain Vibrant red shade.

[0040]

[0041]

Embodiment 3～20

[0043] According to the blending method described in Example 1, the difference is that the dye A, dye B and weight ratio shown in the following table 1 are adopted, in addition, the addition of potassium chloride is 25% of the total weight of the dye, Apply to cotton fiber dyeing according to embodiment 1 dyeing method, also can obtain bright red tone.

[0044] Table 1

[0045] Example

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Abstract

The invention provides an active red dye composition. The composition mainly comprises one or more composition A shown as a formula (I), and one or more composition B shown as a formula (II), wherein based on the composition A and the composition B, mass content of the composition A is between 50 and 99 percent, and mass content of the composition B is between 1 and 50 percent. The active red dyecomposition has bright color, small dependency on dyeing condition, good dyeing stability, 1 / 2-1 / 3 of dosage reduction of salt and alkali than conventional dosage in dyeing, and high dye-uptake ratioand color fixing ratio.

Description

(1) Technical field [0001] The invention relates to a reactive red dye composition, in particular to a reactive red dye composition for textile printing and dyeing. (2) Background technology [0002] Reactive dyes are mainly used in the dyeing and printing of textile fibers or their fabrics, especially for the printing and dyeing of cellulose fibers and their fabrics, but the low dyeing utilization rate of reactive dyes has become an important problem hindering its development. In order to overcome this shortcoming, when dyeing Usually, it is necessary to add a large amount of neutral electrolytes such as sodium chloride to promote dyeing, resulting in the discharge of a large amount of saline wastewater, causing salinization of water and soil, and seriously damaging the ecological environment. Although great achievements have been made in the treatment of organic compounds in printing and dyeing wastewater, the treatment of inorganic salts is still in the preliminary stage,...

Claims

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Application Information

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IPC IPC(8): C09B67/22C09B62/09C09B62/085
Inventor 王晓红陈浩兵吴雪娟王德义章建新
Owner SHANGHAI KEHUA DYESTUFF IND
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