Dyeing technology of wool/polyester blended fabric

Abstract

The invention discloses a dyeing technology of wool / polyester blended fabric. The dyeing technology comprises the steps of (1) preparing a pretreatment solution: adding an acetic acid-sodium acetate buffer solution and fatty acid methyl ester ethoxylate into mixed liquid of ethanol and water, and evenly stirring to prepare the pretreatment solution; (2) pretreating a textile of the wool / polyester blended fabric; (3) preparing dye liquor: adding a reactive dye for wool into the mixed liquid of the ethanol and the water, adding a leveling agent while stirring, evenly stirring and then preparing the dye liquor; (4) dyeing: putting the wool / polyester blended fabric treated in the step (2) into the dye liquor prepared in the step (3), wherein the initial temperature of the dye liquor is 10-20 DEG C; after that, heating the dye liquor up to 40-50 DEG C at the heating rate of 5-6 DEG C / min, and then heating the dye liquor up to 60-90 DEG C at the heating rate of 2-3 DEG C / min; dyeing the wool / polyester blended fabric, then washing, soaping, washing and drying to obtain a finished product.

Description

technical field [0001] The invention relates to a dyeing process, in particular to a wool / polyester blended fabric dyeing process. It belongs to the technical field of textile printing and dyeing. Background technique [0002] Wool is an excellent natural protein fiber, which is loved by people for its excellent hygroscopicity, elasticity, air permeability, warmth retention, comfort and unique garment effect. However, during the processing of wool textiles, if they are not handled properly, these excellent properties will be affected, and the damage of wool fibers is one of them. As we all know, the result of wool damage will lead to the decrease of fiber strength, decrease of elongation, deterioration of tensile properties, decrease of fiber spinnability, decrease of fiber elasticity, easy embrittlement, decrease of bulkiness and other problems. [0003] At present, there are two main ways to reduce wool damage during the dyeing process: low-temperature dyeing process and...

AI Technical Summary

Problems solved by technology

As we all know, the result of wool damage will lead to the decrease of fiber strength, decrease of elongation, deterioration of tensile properties, decrease of fiber spinnability, decrease of fiber elasticity, easy brittleness, decrease of bulkiness, etc.

[0003] At present, there are two main ways to reduce wool damage during the dyeing process: low-temperature dyeing process and high-temperature dyeing process in the presence of protective agents. Among them, low-temperature dyeing process is the most popular, but its color fastness and other dyeing indicators are not ideal.

[0004] The dyeing effect of wool / polyester blended fabrics is even more difficult to control due to the difference in wool and polyester components

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