The importance of temperature control by HT Jigger Dyeing Machine

Temperature is very important for high temperature airflow dyeing machine. Increasing the temperature can effectively increase the dye uptake rate of the entire disperse dyes. However, if the temperature is higher than 130 degrees Celsius, the dye uptake rate of many disperse dyes will no longer change significantly. Therefore, if the temperature is too high, the polyester ester bond will be hydrolyzed, resulting in a significant decrease in the strength and elasticity of the fiber, and the color and light will be relatively poor. Therefore, under normal circumstances, the high-temperature dyeing temperature cannot exceed one One hundred forty-five degrees, the normal temperature can be maintained between 125-130. If you dye in this temperature range, not only the color yield will be higher, but the leveling effect is also very good, in order to allow the fuel to be able to Evenly absorbed by polyester, we should strictly control the rate of heating. When the temperature reaches the specified temperature, we should carry out heat preservation dyeing for a period of time to ensure that the dye can fully penetrate or diffuse. The normal heat preservation dyeing time is 30 -60 minutes, if you want a lighter effect, then the time can be slightly shorter, if the dyeing is darker, then the time is relatively longer. After the entire dyeing is completed, the temperature cannot be cooled too quickly. Otherwise, it will show creases or affect the feel.