Dyeing process taking active emerald blue as main material

Abstract

The invention relates to a dyeing process taking active emerald blue as a main material. The dyeing process comprises the following steps that 1) to-be-dyed cloth is added into a dyeing machine, the to-be-dyed cloth is enabled to be soaked in water, and then the dyeing machine is operated; 2) dye and anhydrous sodium sulphate are separately added into the dyeing machine; and 3) alkali is added into the dyeing machine; wherein the steps satisfy the following conditions that (1) the dye comprises the active emerald blue; (2) a bath ratio of the to-be-dyed cloth to dye liquor is 1:(6 to 8), wherein the dye liquor is composed of the dye and the water, a weight of the dye is equal to or more than 1% of a weight of the to-be-dyed cloth, a dosage of the anhydrous sodium sulphate is 30 g / L to 70 g / L, and a dosage of the alkali is 15 g / L to 20 g / L; (3) after the anhydrous sodium sulphate is added, the anhydrous sodium sulphate can be uniformly distributed on the to-be-dyed cloth and in the water; and (4) after the alkali is added, the dye can be fixed on the to-be-dyed cloth. According to the process, other auxiliaries do not need to be added, dyeing defects can be effectively reduced onlyby adjusting the adding sequence and proportion of the dye, the anhydrous sodium sulphate and the alkali, the process complexity and the cost cannot be increased, even the process can be simplified, the cloth cover quality can be improved, and the dyeing effect is stable and reliable.

Description

technical field [0001] The invention relates to the technical field of dyeing and finishing, in particular to a dyeing process with active turquoise blue as the main ingredient. Background technique [0002] Reactive turquoise blue is a kind of reactive dyes containing copper phthalocyanine structure. It has a large molecular weight and a three-dimensional molecular structure. After it is dissolved in water, the dye molecules tend to crystallize and appear as a sol in aqueous solution. The solubility of active turquoise blue is very sensitive to electrolytes, so it has poor permeability and diffusion when dyeing. [0003] Due to the above-mentioned reasons, in the prior art, when the dyestuff with reactive emerald blue as the main ingredient is used for dyeing, it is easy to occur that the dyeing is too fast, and then cause color spots to appear on the cloth, which affects the quality of the cloth. Contents of the invention [0004] The invention provides a dyeing process...

AI Technical Summary

Problems solved by technology

The solubility of active turquoise is very sensitive to electrolytes, so it has poor permeability and diffusion when dyeing

[0003] Due to the above reasons, in the prior art, when dyeing with active turquoise blue as the main ingredient, it is easy to dye too quickly, which will cause color spots on the cloth and affect the quality of the cloth.