Method of polyester dyeing :
There are 3 methods of polyester dyeing .they are
Carrier method
Pad thermosol method
High temperature high pressure method
Polyester Dyeing process
. Carrier method:
This process is used for dyeing polyester/cellulosic fibre fabrics in jigger or winch-beck.
Dye paste with dispersing agent with water
Raise temp 60*C & add chemicals with materials
Maintain pH with acetic acid 4.5-5.5
Raise temp 95*C for 45 min
Wash
Dry
Delivery
. HTHP METHOD :
Paste dye with dispersing agent
pH control with acetic acid& keep it 4.5-5.5
add material at 60*C
raise temperature at 130 & run the bath for 1 hr
rinse & wash
dry & delivery
process curve :
. pad thermosol method
it is a continuous method of dyeing . in this process 180-220* C temp is needed. Dyeing can be possible within very short time like 1-2 min. it has 4 steps
- padding
- drying
- thermofixing
- after treatment
Process:
padded with dye with chemical
dryed in IR dryer
thermosol unit in 180-220 *C for 60-90s
wash to remove unfixed dye
Thermosol process curve
Method of polyester dyeing | Polyester Dyeing process
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