Novel dyeing auxiliary agent

Abstract

The invention discloses a novel dyeing auxiliary agent. The novel dyeing auxiliary agent is prepared from the following components in parts by weight: 82 to 87g of water, 3 to 6.5g of tetradecanol polyoxyethylene ether sodium sulfate, 0.8 to 4.4g of sodium dodecylbenzene sulfonate, 1.4 to 3.3g of sodium acetate, 1.8 to 4.5g of polyethylene glycol, 1.4 to 3g of ethanol and 3 to 6g of dimethyl malonic acid. According to the novel dyeing auxiliary agent disclosed by the invention, only 2 to 5 percent of the novel dyeing auxiliary agent is added in a printing and dyeing process and fabric fibers are expanded and loosened; the activity of a dyestuff is improved and dyestuff grains are dispersed to enter the fibers at low temperature, so that the consumption of energy sources is reduced, and thecoloring fastness and saturation degree are greatly improved; only one-time dyeing is needed and the dosage of the dyestuff is reduced; rinsing is not needed so that the consumption of the water andthe generation of wastewater are reduced. Specifically, compared with the dyestuff dosage of about 8 percent in the prior art, only about 2 percent of the dyestuff is needed; the fastness can reach grade four and the dyeing rate can reach 99.9 percent or more.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing, in particular to a novel dyeing auxiliary. Background technique [0002] In the traditional printing and dyeing industry, the production process is generally unwinding, desizing, dyeing, opening, presetting, setting and rolling. Among them, during the dyeing process, an overflow machine is usually used under high temperature and high pressure. Due to the poor fastness of the colorant on the fabric, more dye particles are needed, and the unbound dye particles need to be rinsed many times afterwards. , thereby generating a large amount of waste water. Taking each cylinder of cloth (500kg) as an example, it needs to use 5 tons of water for bathing (dissolution-bath ratio 1:10), 21 tons of water for rinsing, and 26 tons of waste water. This process also consumes a lot of hot steam. Contents of the invention [0003] In order to solve the above problems, the present invention strives t...

AI Technical Summary

Problems solved by technology

Among them, during the dyeing process, an overflow machine is usually used under high temperature and high pressure. Due to the poor fastness of the colorant on the fabric, more dye particles are needed, and the unbound dye particles need to be rinsed many times afterwards. , resulting in a large amount of waste water