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DYEING PROCEDURE




Being of major interest in printing applications, a variety of dyeing methods are used.

 

      

      

   



  
   

EXHAUST DYEING THROUGH JIGGER MACHINES

  1. Bath is set with water as required at 40oC, add half the dyestuff solution with 1-2 g/l resist salt, Run 1 turn and add the remaining half solution and run for another turn.

  2. Add half of the salt and raise the temperature slowly. (650 to 85oC after two turns). Run for 1 turn and then add the balance salt and give another turn.
  3. Add half of pre-dissolved alkali and give one turn 800C. Add remaining alkali and give three turn. To get better fixation give two more turns and then drain the lieu or.

 

X% Shade

Salt

Soda Ash

Below 0.5%

40 gm/l

10 gm/l

0.5 to 2.0%

60 gm/l

15 gm/l

2.0 to 4.0%

80 gm/l

20 gm/l

Above 4.0%

100 gm/l

20 gm/l

 

 

 

 

 

     

 

EXHAUST DYEING THROUGH WINCH MACHINE VISCOSE RAYON

BATH SET AT 50
0C
                             MIN.

  1. 20/1000 PART RESIST SALT

  2. DISSOLVED SOLUTION                   10

  3. SALT AS REQUIRED                       15

  4. SODA ASH                                   10

THEN WAS THE GOODS

Salt and alkali requirements - Parts/1000 parts

Depth of Shade

Salt

Soda Ash

Upto 0.5%

40

10

0.5 to 1.5%

50

15

1.5 to 3.0%

60

20

Above 3.0%

80

20

Contd. .. on Page 2

 


The information and procedure provided here is in good
faith and to the best of our knowledge, but without liabilities.


© Magnum Corporation, Bhavnagar, Gujarat - INDIA
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