Disperse red dye with high washing fastness

Abstract

The invention relates to a disperse red dye with high washing fastness. The dye consists of 60 to 95 weight percent of dye monomer A, 5 to 45 weight percent of dye monomer B and the balance of auxiliary agent. The dye composition provided by the invention has bright color, is particularly suitable for disperse / active dyeing of polyester ammonia fabric and polyester / cotton blended fabric, and has high dyeing degree after dyeing, high dyeing uniformity, extremely high color fastness, particularly washing fastness and high dyeing stability.

Description

technical field [0001] The invention relates to a high-washing combined dye, in particular to the dyeing of pure polyester, polyester / cotton fabrics, and polyester-spandex fabrics, and is especially suitable for disperse red (Red S-HWF) dyeing of polyester / cotton blended fabrics for disperse / reactive dyeing. Background technique [0002] With the continuous advancement of science and technology, various new types of textile fabrics continue to emerge, and with the improvement of people's living standards and the wider application of textiles, people are more concerned about the light fastness, washing fastness and other aspects of textiles. More and more individual requirements are put forward. [0003] Although conventional disperse dyes can also dye new fibers, due to the greatly reduced molecular attraction between dyes and fibers, the most obvious is that the dye uptake rate of dyes has dropped significantly, and the fastness of all aspects of the dyed fabrics has differ...

AI Technical Summary

Problems solved by technology

[0003] Although conventional disperse dyes can also dye new fibers, due to the greatly reduced molecular attraction between dyes and fibers, the most obvious is that the dye uptake rate of dyes has dropped significantly, and the fastness of all aspects of the dyed fabrics has different degrees. Decrease, especially the impact on washing fastness is more obvious

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