An energy-saving and environment-friendly continuous washing, dyeing and drying method for fabrics

Abstract

An energy-saving, environment-friendly and continuous fabric washing, dyeing, baking and fixation method is characterized by comprising the following steps that 1, dirt and oil stains on the surface of a fabric are removed; 2, the cleaned fabric is dehydrated and de-oiled, the liquor detention rate of the dehydrated fabric is controlled to be 15%-40%; 3, the dehydrated fabric is fed into a drying box for pre-baking processing, and the moisture content of the baked fabric is controlled to be 15% or below; 4, the pre-baked fabric is dip-dyed through a pad dyeing unit, and the liquor detention rate of the dyed fabric is controlled to be 30-70%; 5, drying and color fixation processing is conducted on the dyed fabric; 6, the fabric obtained after drying and color fixation are completed is fed into a cooling unit for cooing, then repeated zigzagging and winding are performed, and finally a finished fabric product is obtained through fabric swing. The energy-saving, environment-friendly and continuous fabric washing, dyeing, baking and fixation method is high in intelligence, saves energy, reduces emissions, is simple and easy to operate, high in yield, stable in quality, achieves continuous production, reduces energy consumption, meanwhile decreases water consumption and accordingly reduces dyeing wastewater discharge greatly.

Description

technical field [0001] The invention relates to the technical field of textile washing and dyeing, in particular to an energy-saving and environment-friendly continuous washing, dyeing and drying method for fabrics. Background technique [0002] The traditional textile dyeing method is to desizing to remove the size on the surface of the fabric before dyeing, then drying and then dyeing, and then drying through a setting machine. When traditional dyeing methods are used to dye fabrics, since the molecular structure of disperse dyes does not contain ionic water-soluble groups, it is extremely difficult to dissolve in water, so it needs to be uniformly dispersed in the dye solution with the help of dispersants for dyeing. The methods currently used include carrier method, high temperature and high pressure method and hot melt method. Traditional disperse dyes are dyed by means of a variety of auxiliary agents, such as high-temperature leveling agents, dispersants, solubilizer...

AI Technical Summary

Problems solved by technology

After dyeing, due to the presence of auxiliary agents, a considerable amount of dye remains in the dyeing wastewater, resulting in a large amount of COD, BOD and serious water pollution load in the dyeing wastewater, and the dye remaining in the wastewater is extremely finely dispersed, and relatively Stable, so this traditional process produces a lot of waste water, high energy consumption, high pollution makes the textile industry fall into the dilemma of environmental protection

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