Micro- suspension stain technology

Abstract

The invention provides a micro-soliquid dyeing technique, which solves the problem that the soybean fiber is difficult to dye. The dyeing technique is characterized in that the dyeing formula is that 0.01 to 0.6 percent of Soydye, 0.2 to 0.5 percent of Soyprom I dye, 1.5 percent of formic acid and 1.2 percent of Soyprom II dye; at the temperature of 30 DEG C, the four dye formulas are added into a dye bath with a pH value of 4 in sequence, stable dye micro-soliquids are formed rapidly in the dye bath and are dyed by certain dyeing method, afterwards, the conventional dye post treatment is adopted to process and the whole dye process is finished. The micro-soliquid dyeing technique improves the dye uptake, the fixation ratio and the color fastness of the soybean fiber; moreover, the dyed product has bright color and soft tactility and accords with the 'clean production'.

Description

Technical field [0001] The invention belongs to the field of dyeing and finishing, in particular to a micro-suspension dyeing technology. Background technique [0002] At present, the use of existing dyes and corresponding traditional dyeing processes to dye soy protein fibers will have the problems of low dye uptake and poor dye fastness. The main reason for the decrease in the dyeing percentage of soy protein fibers by dyes is that the surface of the dye fibers has poor adsorption capacity for dye molecules, which causes a large amount of dyes to stay in the dye bath. The main reason for the poor color fastness is also that the fiber macromolecule itself cannot form an effective combination with the dye. When dyeing with conventional wool dyes, the above two problems are very prominent. Even if the traditional reactive dyes are used for dyeing, since the hydroxyl group on the side chain of the polyvinyl alcohol macromolecule is a secondary hydroxyl group, its reflection activit...

AI Technical Summary

Problems solved by technology

[0003] The task of the present invention is to provide a microsuspension dyeing technology to solve the difficult problem of soybean protein fiber dyeing

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