Plant dyeing method for improving shade depth of wool garment

Abstract

The invention relates to a plant dyeing method for improving the shade depth of a wool garment. The method comprises the following steps: (1) preprocessing: placing a fully-wetted and dehydrated woolgarment in a dyeing machine, injecting water, adding a natural modifier, heating the wool garment and the obtained solution, carrying out heat insulation, discharging water, and washing the wool garment with water to obtain a preprocessed wool garment; and (2) dyeing: placing the preprocessed wool garment in the dyeing machine, injecting water, adding a plant dye and an acid, heating the wool garment and the obtained solution, carrying out heat insulation, washing the wool garment with water, soaping the wool garment, and discharging the soaped wool garment from a cylinder to obtain the wool garment with an increased shade depth. The modifier added before dyeing makes wool fibers have a large affinity and a high adsorption rate and changes the intermolecular interaction, so the fixing rateof the dye on the fabric is high, thereby the color depth is increased, and the color yield rate is improved. The dye use amount for reaching the same shade depth is low, so the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of wool dyeing, in particular to a plant dyeing method for improving the shade depth of wool garments. Background technique [0002] At present, vegetable dyes dye wool in dark colors, the dyeing yield is low, the amount of dark dyes is large, the price is expensive, and the depth often fails to meet the requirements of customers. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a plant dyeing method that increases the shade depth of wool garments. This method increases the pre-treatment process of garment dyeing, improves the dyeing yield, lowers the amount of dye used for the same depth of color, and reduces costs; Special equipment is required; the finished garments treated by the present invention have deeper dyeing rate and good reproducibility, can realize mass production and have high production stability, so as to overcome the defect of in...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a plant dyeing method that increases the shade depth of wool garments. This method increases the pre-treatment process of garment dyeing, improves the dyeing yield, lowers the amount of dye used for the same depth of color, and reduces costs; Special equipment requirements; the dyeing rate of the finished garments treated by the present invention is deeper, the reproducibility is also good, mass production can be realized and the production stability is high, so as to overcome the defect of insufficient dyeing depth of wool garments with vegetable dyes