Wetting with wat-->Dyeing-->Washing with cold water-->Oxidizing Washing with-->cold water-->Soaping-->Washing with hot water-->Washing with cold water-->Hydroextracting-->Drying.
Wetting with water Dyeing Washing with cold water Oxidezing Soaping Washing with hot water Washing with cold water Drying.
Pigment padding-->Drying-->Cooling-->Chemicals liquor padding-->Steaming -->Washing with cold water-->Oxidizing-->Washing-->Soaping-->Washing-->Drying
| Dyeing method | Dyeing depth | Sodium hydroxide(g/L) | Sodium hydrosulphite 85%(g/L) | Common salt or Sodium sulfate anhydrous(g/L) | Steaming Time(sec). |
Steam temp.(oC) |
| Pad- steam |
Pale-Medimu | 10-30 | 10-30 | 20-30 | 30-60 | 102-104 |
| Medium-Deep | 30-40 | 30-40 | 30-40 |
| Method | SV 1 | SV II | SV III |
| Liquor ratio | 1:50 | 1:50 | 1:100 |
| Sodium hydroxide 30%(ml/L) | 60 | 30 | 60 |
| Sodium hydrosulphite 85%(g/L) | 15 | 10 | 15 |
| Vatting temp.(oC) | 60 | 50 | 60 |
| Vatting time(min.) | 10-15 | 10-15 | 10-15 |
| Dyeing conditon Amount dyestuff(weight on fiber)(%) | Dyeing method | ||||||||
| IN | IW | IK | |||||||
| 0.1-1 | 1-3 | 3-6 | 0.1-1 | 1-3 | 3-6 | 0.1-1 | 1-3 | 3-6 | |
| Sodium hydroxide 30%(mL/L) | 10-12 | 12-17 | 17-20 | 6-8 | 8-12 | 12-14 | 4-6 | 6-8 | 8-10 |
| Sodium Hydrosulphite 85%(g/L) | 4-5 | 5-7 | 7-8 | 3.5-4.5 | 4.5-6.5 | 6.5-7 | 4-5 | 5-7 | 7-8 |
| Wetting agent 10%(mL/L) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Alcohol 95%(mL/L) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Sodium sulfate Anhydrous(g/L) | - | - | - | 5-10 | 10-15 | 15-25 | 5-10 | 10-15 | 15-25 |
| Reduction temp.(oC) | 60 | 50 | 50 | ||||||
| Dyeing temp.(oC) | 60 | 45-50 | 20-25 | ||||||
| Method | Sodium Perborate | Hydrogen Peroxide 30% | Potassium (Sodium bichromate) |
| Amount | 3-4g/L | 2-3mL/L | 1-2g/L |
| Acetic acid Glacial | - | - | 1-2mL/L |
| PH | 10-11 | 9-10 | - |
| Temp.(oC) | 40-50 | 20-40 | 30-40 |
| Time(min.) | 10-20 | 10-20 | 10-20 |
| Soap | 3-5g/L |
| Sodium carbonate | 2-3g/L |
| Temp. | 98-100oC |
| Time | 10-12min. |
