Specifications:
|
Item |
Index |
|
Appearance |
bright black flakes or crystals |
|
Shade |
Near to the standard |
|
Alkali insolubles≤ |
0.7% |
|
Water content≤ |
6% |
|
Content of alkali insolubles≤ |
0.5% |
|
Main colouring force |
Dye strength 6% |