This type of dye is not heat resistant and easy to hydrolyze at high temperature. It is advisable to use cold soft water to make a slurry, and then dissolve it with soft water at a suitable temperature according to the hydrolysis stability of different dyes, heat the soft water to dilute, and add soft water to the specified liquid volume after cooling.
Low temperature type (X type): use cold water or 30-35℃ warm water (basically eliminated)
High temperature type (K type, HE type, etc.): 70-80℃ hot water
Medium temperature type (KN, M type): 60-70℃ hot water
Low solubility: use 90 ℃ hot water