Fabric dyeing depth difference processing method

Abstract

The invention discloses a fabric dyeing depth difference processing method. The method is characterized in that a medium temperature reactive dye dip-dyes at 60DEG C, and a long dye fixation time (60-80min) is needed to realize dyeing balance. The sample dyeing time is prolonged, and the proofing efficiency decreases. The increase of the dyeing temperature effectively shortens the dyeing balance time, the acceleration of the dye up-take rate affects the level dyeing and dye penetration effects, and the acceleration of the hydrolysis rate reduces the depth of the obtained color. Experiment results show that the practical dip-dyeing temperature of a common medium temperature reactive dye is controlled in a range of 65-70DEG C, so the dyeing balance time is shortened, good color depth and level dyeing and dye penetration effects can be obtained, and a vinyl sulfone reactive dye dip-dyes at 65DEG C. When the medium temperature reactive dye is used to dip-dye a sample, recommended conditions are characterized in that dye up-take is carried out for 30min and alkali dye fixation is carried out for 40min at 65-70DEG C to obtain a light color, and dye up-take is carried out for 40min and alkali dye fixation is carried out for 60min at 65-70DEG C to obtain a dark color.

Description

technical field [0001] The invention relates to the technical field of textile dyeing, in particular to a method for treating the difference in depth of dyeing of textiles. Background technique [0002] When dyeing textiles with reactive dyes. No matter what kind of proofing machine is used, there is generally a large depth difference between the small sample and the large sample. to this end. When the workshop enlarges the sample. The prescription dosage of the small sample must be reduced by 20% to 40% in advance. The difficulty is: dyeing with dyes of different structures. Or when dyeing different color depths, the depth difference between the small sample and the large sample is not consistent. Therefore, it is difficult to correctly grasp the pre-discount of small sample prescriptions before stakeout. Once the discount is insufficient, the color will be too dark, and it is necessary to "reduce the color" or even strip the color; if the discount is too high, the co...

AI Technical Summary

Problems solved by technology

thus. Although it is recognized that the difference in bath ratio has a significant impact on the color depth, but at present. Another hard-to-change reality

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