Saturday, May 26, 2012
Typical Recipe for Dying of Polyester/Cotton Blends
Dispersing agent................................... = 0.5 – 1.0 g/l
Sequestering agent................................ = 1.0 – 2.0 g/l
Levelling agent...................................... = 1.0-2.0 g/l
Carrier .................................................= 1.0-3.0
Disperse dyes........................................= X%
Selected direct dyes.............................. =Y%
Acetic acid (50%) .................................= 0.5-2 g/l
Glauber salt ...........................................= 5.0 – 20.0 g/l
Temperature.......................................... = 90- 100
Time .....................................................= 60- 120 mins
M:L ......................................................= 1:10
Dyeing Procedure:
1. Ser the dyebath with substrate at 50 temperature and add dispersing agent, leveler, acetic acid , carrier and other auxiliaries , then urn the dyebath for 5-10 minutes.
2. Add both dyes and raise the temperatur4e to 90- 100 @ 1-2 C/min
3. Add glauber salt and run the bath for one to two bours at the same temperature .
4. Lower down the bath temperature to 70 – 80 over 10-15 minutes.
5. Drip the dyebath and carry on the aftertreatment process.
After Treatment Process:
1. Rinse twice with hot and cold water.
2. Treat the fabric with suitable fixing agent for improving the wet fastness properties of dyed goods .
3. Soap wash according to vender recommendation.
4. Rinse twice with hot and cold water and then
5. Neutralize with acetic acid.
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