With the development of the shaping machine industry, the number of products, enterprises, production and sales and market share have been growing rapidly, and there have been numerous changes. The production process of printing and dyeing industry is complex. In order to improve the appearance, surface characteristics and dyeing quality of products, a variety of textile auxiliaries and solvents need to be added. After dyeing and rinsing, the textiles need to go through the heat setting process. Taking advantage of the thermoplastic characteristics of the fabric, drying, stretching and heat treatment are carried out in the setting machine to achieve the purpose of setting. The waste gas of dyeing and finishing machine contains water vapor, printing and dyeing auxiliaries, volatiles and condensates of solvents, as well as fibers and dust carried by fabrics . It is a mixed fluid containing gas, liquid and solid pollutants. The proportion of waste gas from shaping machine is slightly heavi er than that of clean air, which has the characteristics of high temperature, high humidity, grease and complex composition.
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