A solvent dye is a dye soluble in organic solvents. It is usually used as a solution in an organic solvent. Solvent dyes are used to color organic solvents, hydrocarbon fuels, waxes, lubricants, plastics, and other hydrocarbon-based nonpolar materials. Fuel dyes are one use of solvent dyes. Their molecules are typically nonpolar or little polar, and they do not undergo ionization. They are insoluble in water.
Names of solvent dyes are often generic, of the scheme “solvent “, eg. Solvent Red 24, Solvent Red 26, Solvent Red 164, Solvent Yellow 124, Solvent Blue 35, etc.
Red and yellow solvent dyes are often azo dyes, green and blue ones tend to be anthraquinone dyes.
1. Solvent dyes for Inks for rotogravure and rubber stereo printing; for coating copying paper and typewriter ribbons; for ball point
pens, and in printing inks as shading and brightening agents and for double tone effects.
2. Solvent dyes for Petrol & Fuel Oils
3. Solvent dyes for Wax & Candles
4. Solvent dyes for Cosmetics
5. Solvent dyes for Wood Stain, Spirit & Varnishes.
6. Solvent dyes for Coloration of moulding powders, construction material of cellulose acetate, celluloid, polystyrene,
polymethacrylates, PVC, P/F, U/F.
7. Solvent dyes for Leather- spray finishing of dyed & undyed leather.
8. Solvent dyes for Aluminium foil printing, transparent lacquers, nitrocellulose, cellulose acetate, vinyl, alkyd, other synthetic resins