Polyester-cotton microcapsule disperse reactive dye one-bath dyeing technology

Abstract

The invention discloses a polyester-cotton microcapsule disperse reactive dye one-bath dyeing technology. The technology comprises the steps of: S1, polyester dyeing: dipping a to-be-dyed polyester-cotton fabric in a dye solution containing microcapsule disperse dye, conducting heat preservation at 65-75DEG C, then performing heat preservation at 110-130DEG C, and carrying out cooling to 30-40DEG C, using chitosan to serve as the carrier of the disperse dye, and then conducting crosslinking curing; S2. cotton dyeing: adding a quaternary ammonium salt cationic etherifying agent, carrying out stirring reaction, then adding a reactive dye, performing heat preservation at 55-65DEG C, adding an organic solvent, conducting heat preservation at 70-90DEG C, then adding organic amine and sodium carbonate, and performing heat preservation at 60-100DEG C; and S3, aftertreatment: performing cooling to room temperature, and then carrying out primary washing, soaping and after-washing. The polyester-cotton microcapsule disperse reactive dye one-bath dyeing technology provided by the invention has the advantages of simple process, little pollution, wide dye applicability, uniform coloring, high color fixation rate and good level-dyeing properties.

Description

technical field [0001] The invention relates to the technical field of dyeing, in particular to a polyester-cotton microcapsule disperse reactive dye one-bath dyeing process. Background technique [0002] Polyester-cotton blended fabric not only has the function of moisture absorption and breathability of cellulose fiber, but also has good shape retention and color fastness of polyester fiber, so it is favored by consumers and occupies an important position in various clothing fabrics. [0003] The main processes for disperse / reactive dyeing of conventional polyester-cotton blended fabrics are disperse / reactive two-bath method, disperse / reactive one-bath two-step dyeing process and disperse / reactive one-bath one-step dyeing process. These processes have long dyeing time and low production efficiency. , water, electricity, steam consumption is large, and the amount of sewage discharge is large, all of which require reduction cleaning, and reduction cleaning will damage reacti...

AI Technical Summary

Problems solved by technology

[0005] At present, although the disperse dye capsule / reactive dye one-bath dyeing of polyester-cotton fabrics can have the advantage of saving procedures to a certain extent, there are still a lot of problems, such as the limitations of the reactive dyes and disperse dyes used are very large, regardless of Both reactive dyes and disperse dyes require certain specific dyeing performance requirements, which do not have a wide range of use values; and usually there will be problems such as hydrolysis of reactive dyes, uneven coloring, color flowering, color difference, and low color fixation rate.

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