Composite reactive dye composition and use method

Abstract

The invention relates to a composite reactive dye composition and a use method. The composite reactive dye composition is characterized by comprising any two or more types of yellow composite reactive dye compositions represented in formulas (1) and (2), red composite reactive dye compositions represented in formulas (3) and (4), a navy blue reactive dye represented in a formula (5) and an orange reactive dye represented in a formula (6), wherein in the formulas (1) to (6), Y1 to Y10 respectively and independently represent SO2CH=CH2 or SO2CH2CH2OSO3M; M represents hydrogen or alkali metal; and X represents Cl or F. The composite reactive dye composition disclosed by the invention has good alkali resistance, can be used for cold-pad-batch dyeing and has high fixation rate and good dyeing stability.

Description

1. Technical field [0001] The present invention relates to reactive dye monochrome and mixed color products suitable for dyeing cellulose fibers or cellulose-containing fibers and methods for their use. 2. Background technology [0002] In the dyeing of cellulose fibers using reactive dyes, it is known to use yellow, red, and blue or dark blue reactive dyes as dyes for three primary colors, and to blend them in various ratios for dyeing. For the reactive dyes used as the three primary colors, it is required that the directness, promotion and level dyeing of each dye are good, and the dyeing speed of the three primary colors is basically equal and the temperature dependence is consistent. And the various fastnesses of the three primary colors are excellent. In addition, it is particularly required to be able to meet the needs of the actual process. In the past, the dyes of the three primary colors have different affinity to cellulose fibers, and the dyeing behavior is diffe...

AI Technical Summary

Problems solved by technology

In addition, in addition to the problems associated with the dyeing bath ratio, there is also the problem of color differences caused by the temperature of alkali addition, resulting in poor reproducibility at both the laboratory scale and the workshop scale.

In order to solve this problem, various studies have been carried out in many patent documents, but satisfactory results have not yet been obtained.

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