Direct Violet 1 alias direct violet 4RB, direct green lotus N. Appearance is generally black and brown uniform powder. Good water solubility, slightly sensitive to hard water. Soluble in water is dark red to purple, soluble in cellosolve, slightly soluble in alcohol It is reddish purple and insoluble in other organic solvents. The dye is dark blue in concentrated sulfuric acid, dark purple after dilution; reddish brown in concentrated nitric acid. The aqueous solution is concentrated with hydrochloric acid and has purple precipitate. The color of the sauce is precipitated. When the copper ion is dark, the iron ions are slightly discolored.
TRADE NAME:Direct Violet N,Direct Violet 4RB,Chlorazol Violet N,Diamine Violet N,Dianil Violet H,Erie Violet 3R,Pontamine Violet N
Solubility(g/L) | SDC classification | displacement(grade) | metal ion effect(grade) | discharge property(grade) | other features | ||
copper | iron | neutral | basic | ||||
— | B | 3~4 | 1 | 4 | 4~5 | 4 | — |
sun exposure | soaping | flooding | perspiration | rubbing | ironing | acid and alkali resistant | |||||||
standard depth | 1/12 depth | original color change | white fiber stained | original color change | white fiber stained | original color change | white fiber stained | dry | wet | sulfuric | acetate | soda ash | |
— | — | 3 | 1~2 | 3~4 | 2~3 | 3~4 | 3~4 | 4~5 | 2~3 | 4 | 3 | 1 | 4 |
Direct Violet 1 can be decomposed out of benzidine, which is a banned dye. The alternative dye is C.I.Direct Violet 47.
The dye is applied directly in an aqueous solution, typically in the presence of electrolytes like sodium chloride or sodium sulfate. This helps improve dye exhaustion and ensures even penetration into cellulosic fibers.
It shows moderate light and wash fastness, which is typical of many direct dyes. While suitable for casual wear and decorative textiles, it may not be recommended for applications requiring high fastness standards.
Yes, it can be blended with other direct dyes to achieve customized shades. It is often combined with blues and reds to expand the violet and purple color range in textiles.
As with most synthetic dyes, proper protective equipment such as gloves, goggles, and masks should be used. Adequate ventilation is recommended to avoid dust inhalation during handling.
