PAGESColourtex Recipe for One Bath Dyeing of
Polyester x Cationic Dyeable Polyester blend
Dyeing –1500 MTS. (150 kgs.)
o
Disperse dye inletion (at 40 C) followed by
o
Cationic Dye (at 60 C)
(One-bath Dyeing ) in Jet Dyeing M/c.
Acetic Acid (98 % - pH 4):750 + 750 gms.
Levocol CAP (Anti Precipitating Agent):750 gms.
Levocol CDFT (Levelling Agent):500 gms.
Glauber’s Salt:1500 gms.Some important points for dyeing
PET x CDPET are :
Coracryl - Cationic Dyes:X%-Polyester portion always dyed
with lighter to medium shade
compare to Cationic part.
-Pretreatment/Dyeing temperature
o
should not exceed 118 C in any
case. With temperature more
o
than 118 – 120 C, there are
chances of loss in tensile
strength/tendering of the fabric.
-For one bath dyeing, due to op-
posite nature of Disperse (An-
ionic) and Cationic dyes, use of
Anti precipitating agent is the
must.Coralene - Disperse Dyes:
(Pre Dissolved with Acetic Acid and hot water)
oY%
o
At 115 C to 118 C for 45 mins.
EXECUTIVEDrain
o
Hot wash & R.C. at 90 C for 30 min.
Drain
Neutralisation/Acidification.
Acetic Acid (98 %) : 1000 gms
o
90 C for 30 min
Drain and Cold rinse and carry out Finishing on stenter.
Following are the suggestions for one bath dyeing of Polyeter x Cationic Dyeable Polyester :
A. First weigh the cationic dye separately and dissolve it with equal quantity of Acetic Acid (98%) and hot
water.
B. Dissolve Disperse dye separately with water (Do not add any Dispersing Agents)
o
C. Set the dye bath at 40 C, Inlet auxiliary as described in the recipe than inlet pre-dissolved Disperse
dyes first and run for 10 mins.
oo
Raise the temperature by 1 C/min to 60 C then inlet pre dissolved Cationic dye, run for 10 mins
oo
and start heating with 1 C/min up to 90 C, hold for 10 mins.
ooo
Again raise the temp. to 118 C at the rate of 1 C/min. Hold for 45 mins. Cool down to 90 C, match
the sample and if ok drain the bath and do reduction clear.
D. Reduction Clear with,Hydros
Caustic Soda
Levocol CDFT-
-
-2 g/l
1 g/l
0.5 g/lo
At 80 C for 20 mins.
This page is sponsored by : Colourtex Industries Pvt. Ltd.
Email : [email protected]
Website : www.colourtex.co.in
Colourtex Industries Pvt. Ltd. Surat
This information is provided in good faith, to the best of our knowledge and without liabilities
NCM-MARCH 2020
23