Colourtex Recipe for Process sequence for 100% Polyester Fibre (1.42 dn)

 

Pretreatment to remove oligomers from Polyester fibre.

 

Caustic Soda (O. W. F) – 2%

Soda Ash (O. W. F.) – 1% 

Temperature 1300C./30 mins. drain at 1300C after hot wash & acidification, (Acetic acid) carry out, cold wash. 

 

 

Coralene Dyestuffs   – X %

Levocol WS (Disperseing Agent) – 1 gpl

Levocol PB (Adjust pH 4.5) – 1 gpl

Levocol DFT (Levelling Agent) – 0.25 gpl

Disperse the Dyestuff in dispersing Water

 

 

Dissolve the dispersing agent in 5 time the qty of water as of dyestuff & Dissolve the Coralene dyestuff by slowly adding & stirring the dyestuff in water continuously.

 

 

60^oC to 95^oC – 3^oC/min. 

95^oC to 115^oC – 1^oC/min. 

115^oC hold – 10 min.

115^oC to 135^oC – 10C/min. 

135^oC. – hold time according to depth of shade. 

up to 115^oC inside out & outside – in should  be kept 6 : 4 after 115^oC only in – out flow to be continued until completion of dyeing. 

Drain the batch at 130^oC then reduction clear with

 

Caustic Soda – 2 gpl

Sodium Hydrosulphite – 2 gpl

Levocol DFT (Levelling Agent) – 0.25 gpl

at 80^oC./30 mins.

 

After hot wash, reduction clear, repeated in case of Dark shades (Black & Blue) to ensure complete removal of superficial dyes.

 

After hot wash & acidification, the dyed fibre was treated with antistatic agent at 70^oC. 

Dryed polyester fibre is sprayed with lubricating agent.

 

Above process may vary from customer to customer.