A kind of reactive red dye composition

Abstract

The invention discloses a reactive red dye composition. The composition comprises a component A and a component B, based on the component A and the component B, the mass percentage of the component Ais 5-95%, and the mass percentage of the component B is 5-95%; and the component A is at least one selected from compounds represented by a formula (I) in the description, and the component B is at least one selected from compounds represented by a formula (II), a formula (III) and a formula (IV) in the description. The reactive red dye composition provided by the invention is suitable for printing and dyeing of cellulosic fibers or fabrics containing the cellulosic fibers, and especially for printing; the reactive red dye composition has the characteristics of high solubility, excellent various color fastnesses and the like, fully meets various requirements of performance and environmental protection, and has wide market prospects.

Description

[0001] (1) Technical field [0002] The invention relates to a reactive red dye composition, in particular to a reactive red dye composition suitable for printing and dyeing nitrogen-containing fiber or hydroxyl-containing fiber material. [0003] (2) Background technology [0004] At present, there are 22 kinds of intermediates of aromatic amine azo dyes that are prohibited to be used in ecological textiles, among which benzidine and 2-naphthylamine have the most serious carcinogenic effects on human body. The traditional C.I. Reactive Red 218 is widely used due to its excellent color fastness, but this dye uses tunic acid as a raw material, resulting in excessive 2-naphthylamine on the cloth. In addition, due to poor solubility of C.I. Reactive Red 218, it is easy to have color difference, color flower or color difference when dyeing, so it is often necessary to repair the color of the fabric, which not only affects the production efficiency, but also causes waste of dyeing m...

AI Technical Summary

Problems solved by technology

The traditional C.I. Reactive Red 218 is widely used due to its excellent color fastness, but this dye uses tunic acid as a raw material, resulting in excessive 2-naphthylamine on the cloth

In addition, due to poor solubility of C.I. Reactive Red 218, it is easy to have color difference, color flower or color difference when dyeing, so it is often necessary to repair the color of the fabric, which not only affects the production efficiency, but also causes waste of dyeing materials, steam and water , and the increase in sewage discharge, resulting in a substantial increase in production costs

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