A kind of mattress fabric dyeing agent and dyeing method

Abstract

The invention provides a dyeing agent for mattress fabrics and a dyeing method. The dyeing agent is disperse dye microcapsules, the core material of the disperse dye microcapsules is disperse dyes, and the wall material is carboxyl-terminated low-melting polyester. The mass ratio of the carboxyl-terminated low-melting polyester to the disperse dye is 1:2-5. When dyeing, the prepared disperse dye microcapsules do not need to add additional PH buffer, and do not need to reduce cleaning, which significantly saves dyeing cost and time; The carboxyl-terminated low-melting polyester and the disperse dye are reconstituted into disperse dye microcapsules, and sedimentation occurs, thereby removing the dye in the dye liquor. The invention utilizes the low melting point characteristics of the carboxyl-terminated low melting point polyester and the good affinity with polyester fabrics, which significantly improves the dyeing rate of disperse dyes, and has the advantages of simple operation, low pollution and suitable for wide-scale popularization.

Description

technical field [0001] The invention belongs to the technical field of dyes and dyeing and finishing, and in particular relates to a dyeing agent for mattress fabrics and a dyeing method. Background technique [0002] The mattress fabric needs to have high strength and good wear resistance because it needs to withstand pressure and friction for a long time during the wearing process. Polyester or its blended fabrics are widely used in clothing, apparel and bedding due to its high strength and high abrasion resistance, good elasticity, shape retention and dimensional stability, as well as good chemical resistance and heat resistance. supplies, etc. However, since polyester does not contain reactive groups, it is generally dyed with disperse dyes. At present, polyester dyeing still has the following problems: First, there are few active groups in the polyester molecule that can be combined with dye molecules, so the dyeing fastness is not high; The dyeable area is small, re...

AI Technical Summary

Problems solved by technology

At present, there are still the following problems in polyester dyeing: first, there are few active groups in polyester molecules that can be combined with dye molecules, so the color fastness is not high; second, polyester has strong hydrophobicity, tight macromolecular arrangement, and difficulty in free movement. Small area available for dyeing, resulting in low fixation

However, the affinity between the wall material and polyester fiber is not high enough, and the patent does not mention whether the disperse dye microcapsules are easy to recycle and eliminate after dyeing, and the method of recycle and eliminate

[0006] Therefore, it is necessary to provide a disperse dye microcapsule suitable for polyester dyeing, so as to solve the problems of difficult polyester dyeing, low color fastness and dye uptake, difficult dyeing solution, and large pollution.

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