Gray dye, dye composition and application of gray dye

Abstract

The invention discloses a gray dye, a dye composition and application of the gray dye. The gray dye provided by the invention is prepared from the following components: 80 to 96 percent of a dye monomer A as shown in formula (1), 2 to 9 percent of a dye monomer B as shown in formula (2) and 2 to 11 percent of a dye monomer C as shown in formula (3), wherein the percentage is mass percentage of the dye composition; the total percentage of the dye composition is 100 percent; R1 and R2 are independently H or SO3Na, and are different. The dye prepared from the dye composition is a composite gray dye which is excellent in dye process stability, high in color fastness, high in leveling property and washable.

Description

technical field [0001] The invention relates to a gray dye, a dye composition and applications thereof. Background technique [0002] The active gray varieties currently on the market usually use black 8 monomer. When it is used for color matching in the printing process, from the perspective of process conditions, steaming time, temperature, and humidity have a greater impact on shade and depth, causing factories The quality of printed cloth samples is reduced and downshifted, and even defective products appear in severe cases. The compound product has low process sensitivity, stable hue and depth under different process conditions, and can significantly improve factory production efficiency and product color accuracy. [0003] In addition, with the improvement of living standards, people's requirements for textile products are also getting higher and higher, so that the requirements for various properties of reactive dyes used in textile dyeing are becoming increasingly s...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of reactive gray dyes in the prior art, such as unstable process, poor color fastness, low level dyeing property and difficult washing, etc. when used for color matching, thereby providing a gray dye combination The dye prepared by the dye composition is a composite gray dye, and the dye has excellent dyeing process stability, good color fastness, high level dyeing property, and easy washability

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