Mixture of fiber reactive dye compounds and dyeing method using the same

Abstract

Provided is a fiber-reactive dye mixture, comprising (i) one or more reactive dyes represented by Formula 1, and (ii) one or more reactive dyes represented by Formula 2: and a dyeing method using the same. The dye mixture of the present invention exhibits superior adsorptivity and fixability when dyeing a fiber material containing nitrogen or hydroxyl group, particularly a cellulose fiber material, and particularly very high light fastness and wet fastness, and thus provides a variety of balanced physical properties which are required in dyeing.

Description

technical field [0001] The present invention relates to reactive dye compositions which, when dyeing fibrous materials containing nitrogen or hydroxyl groups, especially cellulose fibers, can improve the light orange or reddish dyeing that is difficult to obtain with a single dye, and to the use of Combination dyeing method of said composition. Background technique [0002] As a conventional process for dyeing a material orange or light red using a reactive dye, a dyeing method using a mixture of C.I. Reactive Orange 122 compound as a bifunctional reactive dye and C.I. Reactive Red 195 as a reactive red dye is typically used . However, the above-mentioned two compounds generally have drawbacks such as weak compatibility with each other, thus lowering the reproducibility of desired colors, and causing dull and cloudy colors of dyed articles due to mixing of dyes. In addition, when using said dyes in the hope of dyeing cellulose fibers in orange or light red, there are disad...

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Problems solved by technology

However, the above two compounds generally have defects such as weak compatibility with each other, thus reducing the reproducibility of the desired color, and resulting in dull and blurred colors of dyed products due to mixing of dyes

In addition, when using said dyes in the hope of dyeing cellulose fibers in orange or light red, there are disadvantages such as blurred colors due to low fixability, possible contamination of other fibers with unfixed dyes, and Low moisture and chlorine water resistance, thus causing contamination of other fibers after dyeing

Furthermore, the method described unfortunately does not meet the high light and perspiration fastnesses required in dyeing

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