Precautions for dyeing
- Dyestuff must be dissolved completely with hot water(70-80℃)which is 3-4 times the weight of the dyestuff.The concentrated solution is then cooled down by cold water.
- As initial dye absorbtion is fast,the temperature must be increased slowly.Further stagewise addition of Glauber’s Salt and Alkali is recommended.
- The dyestuff should not be exposed to sunlight or high temperature during storage period.
Marcozol SP & VS dyes used in both dip-dyeing and padding process:
- Dip dyeing:
- dyeing process
Except Marcozol Turquoise Blue G 150% the dyeing temperature is 80℃.
- Chemical additions for Marcozol dip dyeing
Dyeing depth % |
Glauber’s salt or common salt g/L |
Soda ash g/L |
Trisodium phosphate g/L |
<0.1
0.1-0.5
0.5-1
1-2
2-3
3-5
>5 |
20
30
40
50-60
60-70
70-80
80 |
5
5
10
15
20
25
30 |
-
-
5
10
12
15
15 |
- Two bath padding-drying-steaming process:
Padding |
Marcozol SP & VS types
Migration Inhibitor
Penetrating agent |
X g/L
0-20g/L
0-2g/L |
Alkali padding |
NaOH 36°Be
Soda ash
Glauber’s salt/common salt
Resist S |
12-15ml/L
20-30g/L
200g/L
10g/L |
steaming |
100-102 °C for 60-90seconds |
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