Natural protein fiber in-situ mineralization water-saving emission reduction dyeing post-treatment method and auxiliaries

Abstract

The invention discloses an in-situ mineralization and water-saving emission-reduction dyeing post-treatment method for natural protein fibers. The method comprises the following steps: putting a to-be-dyed textile into dyeing equipment, adding dyeing water, keeping dye bath recycling, and making preparations before dyeing; performing dyeing processing on the to-be-dyed textile with a general natural protein fiber dyeing method, and not discharging dyeing residual liquid after finishing dyeing; simultaneously performing in-situ mineralization treatment on the residual dyeing bath and the dyed textile by utilizing natural protein fiber dyeing post-treatment auxiliary agents XAM, XBM and XYM; storing the residual dyeing bath subjected to mineralization treatment as subsequent dyeing water; performing dehydration and drying on the dyed textile, and finishing the whole dyeing post-treatment process. The invention further relates to the natural protein fiber dyeing post-treatment auxiliary agents XAM, XBM and XYM used in the dyeing post-treatment method. The dyeing post-treatment method solves problems of water consumption and wastewater discharge in a natural protein fiber dyeing processing process.

Description

technical field [0001] The invention belongs to the technical field of textile dyeing and finishing, and specifically relates to a post-dyeing method for in-situ mineralization and deep water-saving and emission-reducing dyeing of residual dyeing bath and dyed fiber after natural protein fiber dyeing. The invention also relates to the above-mentioned post-dyeing treatment The natural protein fiber post-dyeing treatment auxiliary agent XAM, the natural protein fiber post-dyeing treatment aid XBM and the natural protein fiber post-dyeing treatment aid XYM involved in the method. Background technique [0002] A certain amount of residual dyes and residual dyeing auxiliaries often exist in the dyeing residual bath of natural protein fibers after dyeing, and a certain amount of residual dyes also exist on the dyed fibers. In the traditional dyeing process of natural protein fibers, the above-mentioned dyeing residual bath must be discharged, resulting in high dyeing wastewater tr...

AI Technical Summary

Problems solved by technology

Due to the high processing cost and complicated links, it cannot be applied in actual production

[0005] 2. Reduce post-dyeing processing: In order to reduce the water consumption of natural protein fiber dyeing, some enterprises directly add alkali agent to the dyeing residual bath for alkaline washing, so that the residual dye that has not been fixed on the fiber enters the dyeing residue. After the residual bath is discharged, two water washes are carried out, which reduces the water consumption in the post-dyeing process, but the total water consumption of the dyeing process is still as high as 30 times the quality of the dyed fiber, which cannot fundamentally solve the problem of natural protein fiber dyeing. Problems of high water consumption and high pollution

[0006] To sum up, for the dyeing of natural protein fibers, a feasible new dyeing technology for deep water saving and emission reduction has not been found at home and abroad.

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