Reactive dye composition and preparing process and application thereof

Abstract

The invention discloses an active dye composition, which includes compound as showed in formula (A), formula (B), formula (C) and formula (D) and additive. 4 components of the active dye composition of the invention active dye composition are medium temperature dye, wherein the oil-water ratio, dye curve, affinity to cellulose, degree of dyeing, color fixing rate, sensitivity to salt and base, effect on bath ratio and sensitivity to temperature are very close. The composition has good dyeing synchronism and level dyeing property, and much higher color fixing rate, thereby being applicable for dip dyeing, continuous dyeing, cold dome, and printing and embossing of cellulose or protein fiber.

Description

1. Technical field [0001] The invention relates to a reactive dye composition and its preparation method and application, more particularly to a reactive dye composition suitable for cellulose and protein fibers and its preparation method and application method. 2. Background technology [0002] In the dyeing of cellulose fibers, dyeing black with common red, yellow and blue reactive dyes is more likely to produce cylinder difference. Now most of them use active red, yellow and blue dyeing black containing dichloro-s-triazine and vinyl sulfone dual active groups. The sensitivity to alkali, the influence on the bath ratio and the sensitivity to temperature all have certain differences, so the color reproducibility of dyeing is poor, and the chances of repair are great, resulting in a substantial increase in dyeing costs for customers. The black dyed by the combination of common red, yellow and blue reactive dyes has unsatisfactory washing fastness; the current black dyes sui...

AI Technical Summary

Problems solved by technology

Now most of them use active red, yellow and blue dyeing black containing dichloro-s-triazine and vinyl sulfone dual active groups. The sensitivity to alkali, the influence on bath ratio and the sensitivity to temperature all have certain differences, so the color reproducibility of dyeing is poor, and the chance of rework is great, resulting in a substantial increase in dyeing costs for customers

The black dyed by the combination of common red, yellow and blue reactive dyes has unsatisfactory washing fastness; the current black dyes suitable for cold pad batch generally have low alkali resistance stability, low color fixation rate, Problems such as poor fastness

Although the dye combinations disclosed in CN-1063468C and CN-1322064C have improved the compatibility of dyes to a certain extent, and have improved level dyeing and carving whiteness, but in dyeing depth and dyed nylon cotton blending There are still defects such as severe staining of nylon parts in the fabric, so it still cannot meet the needs of printing and dyeing factories when dyeing very dark colors

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