Method of polyester dyeing | Polyester Dyeing process

  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 p^H with acetic acid 4.5-5.5

 Raise temp 95*C for 45 min

Wash

              

Dry

Delivery

 

 .  HTHP METHOD :

 

Paste dye  with dispersing agent

 p^H 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

1. padding


2. drying


3. thermofixing


4. 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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