Direct Dyes
Direct dyes are so-called because they dye direct dye pigments Paste globally, rapid dye growth will also be experienced in., also called Substantive Dye, any of a class of colored direct dyes are used on cellulose fibers such as cotton, rayon, and linen. They lack the permanence of the cold water fiber reactive dyes which most serious dyers prefer for use on cellulose fibers, but in some cases, they have advantages that make their use worthwhile. For example, while many of the direct dyes are not very light fast, there are some dyes in the class that may be more light fast than similar shades of fiber reactive dyes..
All direct dyes perform rather poorly with respect to wash fastness. Without an appropriate after-treatment, direct dyes bleed a little with every washing, losing their brightness and endangering other clothes washed in the same load. However, there are special after-treatments which may be used to solve this problem.
Sunfast & Non Benzidine Direct Dyes
Non Benzidine Direct Dyes
| Sunfast & Non Benzidine Direct Dyes | FASTNESS PROPERTIES | |||||
| Light | Washing | Perspiration | Hypochlorite | Dischargeability | ||
|
Light Red BLN Red – 80 |
6 | 3 | 5 | 5 | F | |
|
Red 5B Red – 81 |
4-5 | 3 | 4 | 4 | G | |
|
Red 5B 200% Red – 81 |
4-5 | 3 | 4 | 4 | G | |
|
Violet MB Violet – 9 |
2-3 | 2 | 5 | 5 | G | |
|
Brill Violet HELIO B Violet – 51 |
2-3 | 2 | 5 | 5 | G | |
|
Sky Blue FBC Blue – 1 |
2 | 3-4 | 5 | 5 | F | |
|
Sky Blue FFH Blue – 15 |
2 | 3-4 | 5 | 5 | F | |
|
Blue JJR Blue – 67 |
4 | 3 | 4 | 4 | P | |
|
Blue GLL Blue – 71 |
5 | 3-4 | 5 | 5 | F | |
|
Blue GLL 200% Blue – 71 |
5 | 3-4 | 5 | 5 | F | |
|
Fast Blue RLL Blue – 80 |
6 | 3 | 5 | 5 | G | |
|
Tur. Blue SBL Blue – 86 |
6-7 | 4 | 5 | 1 | F | |
|
Fast Tur. Blue FBL Blue – 199 |
4 | 3-4 | 4 | 4 | F | |
|
Green JJR Green – 26 |
5 | 3-4 | 5 | 5 | F | |
|
Green NB Green – 96 |
5 | 3-4 | 5 | 5 | F | |
|
Black GR Black – 22 |
2 | 3 | 4 | 4 | G | |
|
Diazo Black OB Black – 80 |
2 | 3 | 3 | 4 | G | |
|
Diazo Black BF Black – 155 |
2 | 3-4 | 4 | 4 | G | |
|
Gray 2RL |
4 | 3 | 4-5 | 4-5 | F | |
|
Brown 2GL
|
5-6 | 3 | 3 | 3 | F | |