1. Chemicals: The dyes must be thoroughly stirred and dissolved in the chemical tank before they can be driven into the cylinder. Otherwise, the surface of the fabric may produce color stains.
2. Temperature: It is necessary to cover the heat preservation operation to keep the temperature of the liquid in the cylinder and the liquid under the liquid uniform.
3. Temperature rise: When the steam is warmed up, the cloth roll should not be run, otherwise the temperature difference will be caused before and after the temperature difference.
4. Head and tail: Before running, ensure that the temperature of the cloth roll is not much different from the temperature under the liquid. In winter, it is necessary to prevent the roll of the roll from being too cold, so that the cloth layer of the contact roll is cooled, and the roll can be poured several times with the hot dye solution. Let it raise the temperature.