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4<br />
textile<br />
<strong>colour</strong> <strong>chronicle</strong> 1 | 2009<br />
Dyeing Methods and Dye Selection for Blends of:<br />
Cationic Dyeable – PES Fibers<br />
Cationic dyeable PES / CV is dyeable with same process<br />
as PAC / CV<br />
I – One Bath Method with Cationic/<br />
Indosol Dyes<br />
This method is only recommended for pastel and<br />
medium shades.<br />
Thiotan R paste prevents precipitation between<br />
the cationic dyes and anionic Indosol dyes, which<br />
may occur depending on the dyes and concentrations<br />
used.<br />
Standard Recipe<br />
It is essential to set the dye bath in the following<br />
order:<br />
Liquor ratio: 1/10<br />
a) 1 g/l Thiotan R paste<br />
0.5 g/l sodium acetate<br />
Run 5 – 10 min<br />
b) x % Cationic dye<br />
Run 5 – 10 min<br />
c) y % Indosol dye<br />
6 g/l sodium sulphate anhydrous<br />
d) Adjust pH to 4.5 – 5 with acetic acid.<br />
Dyeing Methods and Dye Selection for Blends of:<br />
PA and Cationic Dyeable – PES<br />
I. One bath method for pale to medium<br />
shade depths<br />
Dyeing Programme Dyebath Composition<br />
Temperature (°C)<br />
120<br />
110<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
0 50 100 150<br />
Time (min)<br />
Dyeing Programme<br />
Temperature (°C)<br />
120<br />
110<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
a - b - c - d<br />
30<br />
0 20 40 60 80<br />
Time (min)<br />
100 120 140 160<br />
II – One Bath Method with Foron RD/<br />
Indosol Dyes<br />
Same process as with PES normal but with 120°C<br />
fi xation temperature.<br />
For these two processes, the dyeing will be fi xed<br />
with Indosol E – 50.<br />
For pale shade we recommend Optifi x WEI liq.<br />
III – Two Bath Method with Cationic/<br />
Drimaren K or CL and HF Dyes<br />
For better brilliance and high wetfastness properties<br />
we can dye this blend with two baths – cationic<br />
dyes/cold reactive.<br />
1. Dyeing the PES anionic component with cationic<br />
dyes in the 1st bath.<br />
0.5 – 1 g/l Thiotan R paste<br />
6 g/l sodium sulphate<br />
0.5 g/l sodium acetate<br />
x % Cationic dye<br />
y % Nylosan dye<br />
pH 4.5 acetic acid 80%