Wool dip-dyeing technology

Abstract

The invention relates to a wool dip-dyeing technology. The wool dip-dyeing technology comprises the following steps: vatting reducing dye, preparing a dye bath, adjusting the temperature of the dye bath, dyeing, adding ammonium sulfate to dye for 10-15 minutes under the condition that the original temperature is unchanged, water washing, oxidizing, soap boiling, water washing, and drying. The dyeing step comprises the following processes: firstly, adding 1L of ammonium hydroxide with warm water of 50 DEG C, and 150g of sodium hydrosulfite in a dye liquid; secondly, adding 10L of colloidal solution (a bath ratio of 1:10); thirdly, adding a vat-reduced liquid to perform dyeing, and in the later period of dyeing, adding ammonium sulfate to lower the pH value of the dye bath to 8.5-9. A wool fabric produced by virtue of the technical steps is high in sizing percentage and neither shrinks nor deform easily.

Description

technical field [0001] The invention relates to a dyeing and weaving process, in particular to a wool dyeing and weaving process. Background technique [0002] Wool and silk are both protein fibers. The dyes and printing process used in printing are similar to silk, but wool fiber has a scale layer structure and tends to shrink, which will shrink and deform the size of wool fabrics. Contents of the invention [0003] In view of the above problems, the applicant has conducted research and improvement, and provides a kind of dip-dyeing process for wool fabric without shrinkage and deformation. [0004] In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions: [0005] A non-fading paint dyeing process steps are as follows: dye drying tank reduction -> preparation of dye bath -> adjustment of dye bath temperature -> dyeing -> adding ammonium sulfate to maintain the original temperature dyei...

AI Technical Summary

Problems solved by technology

[0002] Wool and silk are both protein fibers. The dyes used for printing and the printing process are similar to silk, but the wool fiber has a scale structure and tends to shrink, which will shrink and deform the size of the wool fabric.