Pad steam method:
Steps:
1)
Fabric is first padded in a padder with the dye.
2)
It is then passed through between two squeezing roller
in a dryer. Drying should be done slowly; otherwise precipitation of dye due to
quick removal of water may take place leading to lower color value.
3)
After coming out from dryer fabric is padded in a
padder containing salt and alkali. Due to salt exhaustion of dye takes place
and due to alkali fixation occurs.
4)
Fabric then passed through a steamer where it is kept
for 15-19 second. Due to high temperature here fixation rate increases.
5)
In this step fabric is washed in a washing machine to
remove the unfixed dye.
