Direct Dyes are dyed on cellulosic fibers at near boiling temperatures from neutral or weakly alkaline baths along with salt (Common or Glauber's Salt Calc.)
These dyes are known for their comparative cheapness, simplicity of application and availability of all shades and hues in one class of Dyestuffs ,though it cannot be compared with vat, solubilized vat, azoic, fiber reactive, sulphur and pigment groups of colorants in respect of color fastness properties.
These class of Dyestuffs makes them one of the most important groups of dyes for cotton, viscose, cuprammonium and various cellulose based fine textiles such as voiles, georgette, crepe, chiffon. Knitwear etc . because many for dyeing ground shades for subsequent discharge printing.
Specific Direct Dyes are also used for dyeing lignin fibers such as jutes, sisal, coir, paper, leather, natural silk, wool, nylon as well as blends of cellulose
| GENERIC NAME | C. I. NUMBER | SHADE | |
| Yellow 3GX | Direct Yellow 6 |
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| Chrysophenine G | Direct Yellow 12 |
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| Brilliant Paper Yellow | Direct Yellow 4 |
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| Paper Yellow T | Direct Yellow 11 |
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| Sun Yellow RCH | Direct Yellow 99 |
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| Orange SE | Direct Orange 26 |
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| Orange TGY | Direct Orange 37 |
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| Orange TGO | Direct Orange 34 |
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| Fast Orange TGLL | Direct Orange 39 |
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| Red 4B | Direct Red 81 |
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| Scarlet 4BS | Direct Red 23 |
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| Red F3B | Reactive Red 80 |
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| Pink FR | Direct Red 227 |
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| Red 12B | Direct Red 31 |
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| Violet MB | Direct Violet 9 |
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| Turquoise Blue GLL 200% | Direct Blue 71 |
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| Turq. Blue GL 120% | Direct Blue 86 |
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| Turquoise Blue FBL | Direct Blue 199 |
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| Black SM | Direct Black 168 |
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| Black B | Direct Black 19 |
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| Black A | Direct Black 22 |
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