Direct Green 1 is Dark green,Soluble in water for blue light green, soluble in soluble fiber element, and adequate soluble in ethanol and acetone, insoluble in other organic solvents. In the dark for the strong sulfuric acid to blue-black, after dilute black precipitation; In nitric acid partly dissolved, from brown into a red. The dye solution to join strong hydrochloric acid have Gray light purple precipitation; Add thick dark blue purple sodium hydroxide solution precipitation.
TRADE NAME:Direct Green BE,Direct Dark Green,Direct Green N,Direct Dark Green A,Direct Dark Green B,Direct Green WAC,Nippon DarkGreen B,Nippon Dark Green B Conc,Phenamine Dark Green B,Polycor Dark Green S,Pontamine Green S,Sandopel Dark Green B,Shikiso Direct Dark Green B,Tertrodirect Green BG
| Dyeing depth % | 2 |
| Insolubles % | 0.15 |
| Light Fastness | 2 |
| Washing Fatness | 4 |
| Rubbing fastness(dry) | 4 |
| Rubbing fastness(wet) | 3 |
Direct Green 1 Suitable for cellulose fiber, silk, polyamide fiber dyeing and printing, also suitable for leather and paper color.
Direct Green 1 shows high affinity for cellulosic fibers like cotton and viscose, providing strong shade depth. On synthetic fibers, however, the fixation is generally weak, so it is rarely used for polyester or nylon unless blended with other dyeing systems.
Yes, Direct Green 1 is often blended with direct yellows or direct blues to produce customized green shades, making it versatile in textile and paper coloration.
No, Direct Green 1 does not require a mordant. It is applied directly in aqueous solutions, making the dyeing process simpler and more economical compared to mordant dyes.
The main limitations include only moderate washfastness and lightfastness, meaning colors may fade more quickly under intense sunlight or repeated washing compared to reactive or vat dyes. For applications requiring higher durability, alternative dye classes may be preferred.
