Precautions for high temperature and high pressure dyeing machine

1、 Dye solution preparation
When preparing the dye solution, first use a small amount of cold water to make the dye slurry, and then use room temperature water to dilute it. Note that the temperature of the water used for diluting should not be too high, higher than 60 degrees, and the disperse dye quilt will be damaged, while the dye will be condensed. In addition to the upregulation, the dye can also be prepared by the powder spreading method, that is, slowly sprinkle the dye into the cold water under high speed mixing. After the dye bath is prepared, it should not be left for a long time. The mixer shall be used to mix slowly to prevent sedimentation.
2、 Selection of dyes
The varieties with good diffusivity and levelness shall be selected as far as possible during dyeing, and the dyes with similar dyeing performance shall be selected during color matching.
3、 Restore cleaning
Restore cleaning is an important part of removing floating color. After restoration and cleaning, the color and luster slightly fade. At the same time, the rubbing fastness and light fastness were improved.
4、 Prevention of tar spots
The so-called tar spot is a viscous substance formed in the dye solution. The main components are dye dispersant and polyester oligomer.