The importance of temperature for high temperature dyeing machines

Temperature is very important for high-temperature dyeing machines. When the temperature is raised, the dyeing rate of the entire disperse dye can be effectively improved. However, if the temperature is higher than 130 degrees, many dispersed dyes are used. The change in the dye uptake rate is no longer obvious, so if the temperature is too high, the phenomenon of hydrolysis of the polyester ester bond will be caused, resulting in a significant decrease in the strength and elasticity of the fiber, and the color light will be poor.
 
Therefore, under normal circumstances, the dyeing temperature of the high temperature dyeing machine should never exceed 145 degrees, and the normal temperature can be maintained between 125-130. If dyeing is performed in this temperature range, not only the color yield will be obtained. Higher, the overall leveling effect is also very good.
 
In order to allow the fuel to be uniformly adsorbed by the polyester, we should strictly control the rate of temperature rise. When the temperature reaches the specified temperature, it should be dyed for a period of time to ensure that the dye can be fully penetrated or diffused. Normal insulation The dyeing time is between 30-60 minutes. If you want a light color effect, the time can be slightly shorter. If the dyeing is deeper, the time is relatively longer. After the dyeing is over, it should not be too Cool down quickly, otherwise there will be creases or effects that affect the feel.

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