Low-temperature dyeing method for improving strength of wool textiles

Abstract

The invention relates to a low-temperature dyeing method for improving strength of wool textiles and belongs to the field of printing and dyeing processing of textiles. According to the method, the wool textiles accompanied with pretreatment fluid are placed in a dyeing solution, which is prepared through mixing a high ratio of ethanol and a small volume of water and dyes, for low-temperature dyeing by adopting a method of changing dyeing solution preparing and dyeing process routes. According to the method disclosed by the invention, the loss of strength of wool can be lowered, the utilization ratio and dye uptake of the dyes are increased, the level dyeability of the wool textiles is good, both the gloss and the wear behavior are improved, the water consumption of a dyeing process of thewool textiles can be lowered, and the consumption of auxiliaries is effectively lowered, so that the process is simple, the cost is low, the ethanol can be recycled, and the method is safe, energy-saving, economical and environmentally friendly.

Description

technical field [0001] The invention relates to a low-temperature dyeing method for improving the strength of wool textiles, and belongs to the field of textile printing and dyeing processing. Background technique [0002] In traditional wool dyeing, in order to obtain better level dyeing and make the dye penetrate into the fiber, generally the wool fiber is continuously dyed for a long time when the dye solution is boiling or near boiling. Due to the limitations of dyes and equipment, the pH range of wool dyeing is generally 2 to 7. Dyeing under such traditional long-term high-temperature boiling conditions will cause various forms of loss of wool, especially the strength of wool fibers. The loss not only reduces the production efficiency and output, but also affects the feel and vividness of the dyed product, and finally even affects the quality and performance of the product. [0003] Therefore, with the advancement of science and technology and the needs of wool product...

AI Technical Summary

Problems solved by technology

However, its disadvantage is that this method needs to treat the wool with protease, the process is complicated and the cost is high

However, its disadvantages are that the cost of this method is high and the process is complicated

Although this method uses ionic liquids to modify and then dye wool, it does reduce the loss of wool, but its disadvantage is that the cost of this method is relatively high

Although the method of adding oxidizing and reducing agents in the dyeing process does achieve low-temperature dyeing of wool, its disadvantage is that this method does not reduce the damage to the strength of wool to a certain extent.