Waterless printing and dyeing process

Abstract

The invention discloses a waterless printing and dyeing process which includes the following steps: preparing grey cloth to be printed and dyed, removing impurities and dust on the grey cloth, inspecting the grey cloth, turning the grey cloth, sewing the grey cloth, and then feeding the sewn grey cloth into a singeing machine for singeing, to remove rough selvedge and fuzz of the grey cloth; cleaning the cloth through cloth cleaning equipment, and removing fuzz on the cloth; winding the cloth obtained in the previous step; putting the rolled cloth into waterless printing and dyeing equipment for printing and dyeing, heating and pressurizing CO2 to be in a supercritical fluid state which is neither gas nor liquid so as to dissolve dye, and then dissolving the dye and sending the dissolved dye into fiber pores by taking supercritical CO2 as a dyeing medium so as to dye the fabric; depressurizing after dyeing; taking out the printed and dyed cloth; checking the cloth; and cutting or packaging for storage if the cloth is qualified. According to the process, sewage discharge is effectively reduced in a waterless printing and dyeing mode, and the environment is protected.

Description

technical field [0001] The invention belongs to the technical field of cloth printing and dyeing, and in particular relates to a waterless printing and dyeing process. Background technique [0002] Cloth dyeing usually uses dyeing vats to color white cloth, but the pollution of the dyeing vats to the environment is becoming more and more serious, and the polluted water resources are extremely difficult to deal with, which has an extremely serious impact on environmental pollution , At the same time, after the dyeing of the cloth, it needs a very long time of drying and other treatments, which is inefficient, the labor cost is large, and the site occupies a large area. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a waterless printing and dyeing process. [0004] In order to achieve the above object, the present invention adopts the following technical solutions: a waterless printing and dyeing pro...

AI Technical Summary

Problems solved by technology

[0002] Cloth dyeing usually uses dyeing vats to color white cloth, but the pollution of the dyeing vats to the environment is becoming more and more serious, and the polluted water resources are extremely difficult to deal with, which has an extremely serious impact on environmental pollution At the same time, after the dyeing of the cloth, it needs a very long time of drying and other treatments, which is inefficient, the labor cost is high, and the site occupies a large area. At the same time, color difference is easy to occur through water dyeing, resulting in poor quality of the final product.

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