In case of dyeing with disperse
dye temperature plays an important role.for the swelling of fibre temperature
about 100°C is required
if high temperature dyeing method is applied. Again in case of carrier dyeing
this swelling occurs at 85-90°C
. Incase of thermosol dyeing method if temperature is kept more, fabric is kept
for less time in thermosol unit. Because in higher temperature, less time is
enough for thermofixation of dye. If it is kept for more time at high
temperature dye submation and loss of fabric strength occur.
Again thougt disperse dye is a
water – insoluble dye, its solubility increases with increasing temperature.