What is the reason why the high temperature airflow dyeing machine is not doing well
Jun 25, 2021
The working principle of the high-temperature airflow dyeing machine is: the airflow passes through the fan, continuously blows to the nozzle, and sprays to the fabric in the same direction as the fabric to drive the fabric to run. When the fabric is folded, the air pressure changes drastically, causing the fabric to bubbling and eradicating wrinkles. The dye is sent to the nozzle through the feeding motor and merges with the air at the nozzle, causing the dye solution to be atomized in the powerful airflow and spread to the high-speed running grey cloth through the nozzle. At this time, the various dyeing performances of dyes are somewhat different from those of overflow dyeing. In liquid dyeing, it is mainly reflected in the slow dyeing and migration properties of dyes. In air dyeing, the dye migration is reduced due to the separation of cloth and liquid. Dyeability is mainly embodied in slow-dyeing and diffusibility, as well as the process of dye diffusion and adsorption from the dye liquor to the fabric. Because the grey fabric has not been immersed in water during the dyeing process, it is very difficult for the added dye to migrate (this is also an important factor for not discoloring). All dyestuffs must rely on this and adsorption (or fixation) process. In addition, the proportion of dyes on the grey fabric should be continuously and evenly increased to achieve the purpose of dyeing. The dye diffuses to the fabric and diffuses uniformly to achieve uniform dye absorption and uniform color fixation, which is a key process of airflow dyeing. In this diffusion-adsorption process, in order to spread the dye liquor evenly, the wool effect of the grey cloth is very important. The permeability of the grey cloth helps the dye liquor to be uniform and absorbed, and then the dye is fixed evenly.

