Dyes
Direct Dyes
Many of the new reactive dyes are bifunctional with identical or different reactive groupings in the dye molecule. Bifunctional dyes carry two reactive groups. Bifunctional dyes with good dyeing properties are created by the careful selection of the right reactive groups and right chromophores. It can easily be assessed that dyes with two identical reactive groups and dyes with two different reactive groups exhibit a higher fixation yield than-dyes with one group. The dyes were conventional Dichlorotriazine type, with the end condensation of B-sulphate ethyl sulphone to have different type of reactive group in a single molecule.
Advantages of direct dyes
- They offer enhanced reproducibility especially for medium to pale shades.
- They have high fixation rate. Excellent dyeing efficiency.
- Due to triazine ring system, they offer level dyeing performance for even non critical substrates.
- They have high fastness profile especially the washing characteristics.
- They have a brighter range of colors as compared to VS dyes.
Key to Abbreviations
- ND = Non Dischargeable
- D = Dischargeable
- G = Good
- M = Medium
- F = Fair
- P = Poor
- S = Suitable
- NS = Non Suitable
- L = Less Suitable
DIRECT DYES |
|||||
|---|---|---|---|---|---|
NO |
PRODUCT NAME |
Light |
Washing |
Perspiration |
Solubility |
| 1 | Yellow PG (Yellow 142) | 4-5 | 4-5 | 3-4 | 60 |
| 2 | Yellow 5GLL (Yellow 44) | 5 | 3-4 | 4-5 | 60 |
| 3 | Paper Yellow T (Yellow 11) | 5 | 4-5 | 3-4 | 60 |
| 4 | Sun Yellow RCH (Yellow 99) | 4 | 2 | 2 | 60 |
| 5 | Yellow 2RLX (Yellow 86) | 6 | 3 | 3-4 | 80 |
| 6 | Yellow G (Yellow 107) | 4-5 | 3 | 3 | 60 |
| 7 | Chrysophenine (Yellow 12) | 5 | 4-5 | 4 | 60 |
| 8 | Chrysophenine Conc.(Yellow 12) | 5 | 4-5 | 4 | 60 |
| 9 | Orange GLL (Orange 39) | 5 | 2-3 | 4-5 | 60 |
| 10 | Orange TGLL (Orange 34) | 4-5 | 4-5 | 3 | 60 |
| 11 | Orange GR (Orange 1) | 4-5 | 4 | 3-4 | 60 |
| 12 | Viscose Orange A (Orange 108) | 2-3 | 2-3 | 2-3 | 70 |
| 13 | Orange SE (Orange 26) | 3 | 4 | 2-3 | 50 |
| 14 | Fast Scarlet 4BS (Red 23) | 3-4 | 2 | 3-4 | 60 |
DIRECT DYES |
|||||
|---|---|---|---|---|---|
NO |
PRODUCT NAME |
Light |
Washing |
Perspiration |
Solubility |
| 1 | Fast Rose FR (Red 227) | 4-5 | 4 | 4-5 | 60 |
| 2 | Scarlet 4BNX (Red 239) | 4 | 3-4 | 4 | 60 |
| 3 | Fast Red BFX (Red 254) | 4-5 | 3-4 | 4 | 60 |
| 4 | Solophenyl Red 3BL (Red 80) | 5 | 3-4 | 3-4 | 80 |
| 5 | Red 5BL (Red 81) | 4-5 | 3-4 | 3-4 | 70 |
| 6 | Rubine 2RL (Red 83) | 5 | 3-4 | 2-3 | 60 |
| 7 | Red 12B (Red 31) | 2 | 2 | 3 | 60 |
| 8 | Red F (Red 1) | 4-5 | 4-5 | 4 | 60 |
| 9 | Red 4B (Red 2) | 4-5 | 4 | 3-4 | 60 |
| 10 | Bordeaux 6B (Red 16) | 4-5 | 4-5 | 4 | 60 |
| 11 | Turq. Blue FBL (Blue 199) | 5 | 3 | 3 | 80 |
| 12 | Turq. Blue GL (Blue 86) | 5 | 4 | 1-2 | 80 |
| 13 | Blue 2RLL (Blue 80) | 5 | 4-5 | 3-4 | 60 |
| 14 | Light Fast Blue GL (Blue 71) | 5-6 | 2-3 | 2 | 60 |
DIRECT DYES |
|||||
|---|---|---|---|---|---|
NO |
PRODUCT NAME |
Light |
Washing |
Perspiration |
Solubility |
| 1 | Sky Blue FB (Blue 1) | 2 | 3 | 3 | 80 |
| 2 | Sky Blue FF (Blue 15) | 4 | 3-4 | 3 | 80 |
| 3 | Bril. Fast Violet 2RL (Violet 7) | 4 | 2 | 2-3 | 60 |
| 4 | Violet 4BLL (Violet 66) | 4 | 3 | 3 | 60 |
| 5 | Bril. Violet NB (Violet 9) | 2-3 | 2 | 2-3 | 40 |
| 6 | Bril. Fast Helio B (Violet 51) | 4 | 2-3 | 2-3 | 60 |
| 7 | Black OBN (Black 80) | 5 | 3 | 3 | 50 |
| 8 | Black BF (Black 155) | 5 | 3-4 | 2 | 50 |
| 9 | Black SBG (Black 165) | 3-4 | 3 | 2 | 40 |
| 10 | Black SGR (Black 168) | 3-4 | 2 | 2 | 40 |
| 11 | Black ESE (Black 179) | 3-4 | 3 | 2-3 | 50 |
| 12 | Black 2G (Black 201) | 4-5 | 3-4 | 3 | 60 |
| 13 | Black VSF (Black 22) 600% | 4-5 | 3-4 | 3-4 | 60 |
| 14 | Black VSF (Black 22) 1600% | 4 | 3-4 | 3-4 | 50 |
DIRECT DYES (N.B.) |
|||||
|---|---|---|---|---|---|
NO |
PRODUCT NAME |
Light |
Washing |
Perspiration |
Solubility |
| 1 | Diazo Black BT | 4-5 | 4-5 | 4 | 60 |
| 2 | Diazo Black BT Conc. | 4-5 | 4-5 | 4 | 60 |
| 3 | Black Ex. | 4-5 | 5 | 4-5 | 60 |
| 4 | Black Ex. Conc. | 4-5 | 5 | 4-5 | 60 |
DIRECT DYES (N.B.) |
|||||
|---|---|---|---|---|---|
NO |
PRODUCT NAME |
Light |
Washing |
Perspiration |
Solubility |
| 1 | Congo Red | 4-5 | 4-5 | 5-4 | 60 |
| 2 | Congo Red Conc. | 4-5 | 4-5 | 5-4 | 60 |
| 3 | Bordeaux BW | 4 | 4-5 | 4 | 60 |
| 4 | Bordeaux BW Conc. | 4 | 4-5 | 4 | 60 |
| 5 | Brown MR | 4-5 | 4 | 3-4 | 60 |
| 6 | Brown MR Conc. | 4-5 | 4 | 3-4 | 60 |
| 7 | Green B | 4-5 | 5 | 4 | 60 |
| 8 | Green B Conc. | 4-5 | 5 | 4 | 60 |
| 9 | Green PLS | 4-5 | 4-5 | 3 | 60 |
| 10 | Green PLS Conc. | 4-5 | 4-5 | 3 | 60 |
| 11 | Brown GG | 4-5 | 5 | 4-5 | 60 |
| 12 | Brown GG Conc. | 4-5 | 5 | 4-5 | 60 |
| 13 | Blue 2B | 4-5 | 4-5 | 4 | 60 |
| 14 | Blue 2B Conc. | 4-5 | 4-5 | 4 | 60 |