Ethyl alcohol dyeing accompanying technology

Abstract

The invention discloses an ethyl alcohol dyeing accompanying technology. The ethyl alcohol dyeing accompanying technology is characterized in that the dyeing is completed by 5% to 10% dissolving dyeing material, and 90% to 95% of water and inorganic salt are replaced by the ethyl alcohol. The ethyl alcohol dyeing accompanying technology has the advantages that by adopting a salt-free dyeing technique under an ethyl alcohol system, the usage amounts of salt and water are obviously reduced, and the economic and social benefits are obvious; compared with the traditional technology, the usage amount of water for dyeing is reduced by 90% to 95%, the ethyl alcohol can be recycled, and the zero drainage of dyeing is basically realized; the dyeing time is shortened by 50%, the dyeing temperature is reduced by 10 to 20 DEG C, the energy is saved by 30% or above, and the problem of sewage in the textile industry is solved by the zero-drainage plan.

Description

technical field [0001] The invention relates to the technical field, in particular to an ethanol accompanying dyeing process. Background technique [0002] For dyeing under the traditional water system, the amount of dyestuffs used is between 0.1% and 7%. Water has two functions, one is to dissolve dyestuffs, and the other is to serve as a carrier to provide dye bath environment and transport dyestuffs. Salt It plays the role of promoting dyeing and color fixing. [0003] Traditional dyeing uses a lot of water and a lot of inorganic salts: more than 8 tons of water per dyed 1 ton of fiber, plus 60-100 tons of water per dyed 1 ton of fiber plus pre-treatment and post-treatment. The national annual dyeing water is 1.2 billion tons, and the environmental pressure is huge. Because the inorganic salt in the wastewater is difficult to remove, it causes water and soil pollution and the destruction of the ecological environment. Therefore, how to reduce the use of water and salt at...

AI Technical Summary

Problems solved by technology

The national annual dyeing water is 1.2 billion tons, and the environmental pressure is huge. Because the inorganic salt in the wastewater is difficult to remove, it causes water and soil pollution and the destruction of the ecological environment. Therefore, how to reduce the use of water and salt at the source has become a very challenging task. subject

[0004] Although in the prior art there is also a method for dyeing textiles with a dye solution that is miscible with organic solvents and water, but in actual industrial applications, problems such as significantly lower dye uptake, long dyeing time, large water consumption, and high energy consumption will occur. , not suitable for large-scale promotion and application

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