Application Of Acid Dyes
1. Dyeing Method
Recipe:
| A.Dyes |
X%(o.w.f) |
| B.Sodium sulfate(anhydrous) |
5-10%(o.w.f) |
| C.Sulfuric acid(66o? Be') |
2-4%(o.w.f) |
| Adjust PH |
<3.5 |
| Liquor ratio |
?1: 10-30 |
Dyeing Procedure
2. Dyeing Method
Recipe:
| A.Dyes |
X%(o.w.f) |
| B.Sodium sulfate(anhydrous)? |
5-10%(o.w.f) |
| C.Glacial acetic acid |
1-2%(o.w.f) |
| Sulfuric acid(66o? Be') |
1-2%(o.w.f) |
| Adjust PH |
<3.5 |
| Liquor ratio |
1: 10-30 |
Dyeing Procedure
Note:A further addition of sulfuric acid (66o Be') is made in case the dye is not completely exhausted. Then dyeing for a further 20-30 minutes at the boil is carried out.
