1)
It assists in the process of partical size
reduction of dye.
2)
It enables the dye to be formed in powder form.
3)
It facilitates the reconversion of the powder
into a dispersion, which is required for dyeing.
4)
It maintain the dispersion in a fine form into
dye bat throughout the process.
5)
It increase the solubility of disperse dyes in
water.
6)
It affect on the rate of dyein.