| Quality standard |
Index name |
Index |
Apperance strength，separated coloured light impurity content insoluble in water，% |
golden red glazing or bronze-coloured powder 100±3 of standard products similar to standard products ≤1.5 |
|
| Use：used in silk and wool dyeing, and used in paper, bamboo and wood coloring. It is still used as solvent dope. |
| Application performance：Colour fastness(grade) in cotton： |
Solarization |
Soaping |
Water leaching |
Perspiration |
Ironing |
Friction |
Acid and alkali resistance |
fading |
staining |
fading |
staining |
fading |
staining |
dry |
wet |
sulphuric acid |
ethylic acid |
sodium carbonate |
1 |
2～3 |
3 |
3～4 |
2～3 |
3 |
1～2 |
4～5 |
3～4 |
2～3 |
3 |
4 |
1～2 |
|
| Colour fastness(grade) in acrylic fibers： |
Solarization |
Perspiration |
Soaping |
Friction |
Ironing |
Dry cleaning |
dry |
wet |
2～3 |
4
|
4
|
4～5 |
4 |
4 |
4 |
|
