Dyeing technology for carrying out one-bath scouring and dyeing on lycra-containing cotton knitted fabric by active turquoise blue

Abstract

The invention discloses a dyeing technology for carrying out one-bath scouring and dyeing on a lycra-containing cotton knitted fabric by active turquoise blue, mainly aims at solving the problems that a traditional technology is relatively large in water consumption and coal consumption, long in technology duration and high in power consumption. The dyeing technology comprises the working procedures of preshaping, stitching the edge, carrying out one-bath scouring and dyeing, and carrying out aftertreatment and afterfinish in sequence, wherein in the working procedure of the preshaping, a chelating agent, a deoiling agent, tea saponin, a tea saponin dispersion dispersion liquid and a scouring agent are fed; in the working procedure of the one-bath scouring and dyeing, the deoiling agent, a defoaming agent and refined enzyme are fed into a dye vat after being diluted by clear water, a leveling agent, anhydrous sodium sulphate and sodium carbonate are fed into the dye vat in a way of circulating material injection, the active turquoise blue and urea are fed in a way of dissolving the materials by the clear water, and the heat preservation is carried out at the temperature of 80 DEG C. After the dyeing technology is adopted, the lycra-containing cotton knitted fabric can be bleached, dyed and scoured by the working procedure of the one-bath scouring and dyeing, so that a plurality of tasks can be completed in one working procedure, the technological process is shortened, the processing steps are reduced, and the water consumption, the electricity consumption and the coal consumption in the processing steps can be omitted.

Description

technical field [0001] The invention relates to a one-bath dyeing process of lycra-containing cotton knitted fabrics using active emerald blue for scouring and dyeing. Background technique [0002] Knitted fabrics containing Lycra cotton are more and more popular because of their good air permeability, good moisture absorption, soft texture and comfortable wearing. Colors such as light cyan, azure blue, emerald green, bright green and fruit green have become important choices for young people to buy clothes, and the composition of these colors is inseparable from the dye of reactive emerald blue. However, because the structural molecules of the active green blue are not the usual linear structure but the planar structure, the active green blue is not easy to adsorb to the inside of the fiber during the dyeing process, and then it is easy to form stains. Aggregation tendency, active Cuilan has better alkali resistance. The traditional dyeing process of knitted fabric contai...

AI Technical Summary

Problems solved by technology

[0019] It can be seen that the dyeing process of the traditional Lycra-containing cotton knitted fabrics dyed with active emerald blue not only consumes a lot of water and coal, but also takes a long time and consumes a lot of electricity. In short, the energy consumption is too large and the process time is too long