Direct Yellow 44 is a water-soluble direct (azo) dye with a bright yellow shade and good substantive affinity for cellulosic fibers. It is supplied as a free-flowing powder and is commonly used for exhaust dyeing and direct printing of cotton, viscose and other cellulosic blends; it is also used in leather, paper and ink formulations.
Direct Yellow L4G,Direct Fast Yellow GC,Solophenyl Yellow 5GL
It Most suitable for dyeing of viscose like cotton, flax, viscose rayon, acetate and jute, also for Ink, Leather and Paper coloration.
| Solubility at 90 C | 60g/l |
| Insolubles % | 0.15 |
| Light Fastness | 5 |
| Washing Fatness | 4 |
| Perspiration | 5 |
| Soap Fading | 3 |
Direct Yellow 44 is engineered for cellulosic fibers—cotton and viscose show the best shade depth and leveling. With appropriate auxiliaries and dyeing conditions it can also be used on certain polyamide and blended fabrics, and in paper or leather applications.
Improve washfastness by optimizing dye liquor pH and temperature, adding a low level of salt (for leveling) followed by a hot soaping/after-treatment step, and using fixation or cationic fixing agents where permitted. Mechanical and chemical after-treatments reduce migration and bleeding.
As with most powdered dyes, avoid inhalation and dust dispersion. Use standard PPE (gloves, goggles, dust mask/ventilation). Consult the product SDS for specific hazard statements, exposure limits and wastewater disposal instructions.
Yes — its water solubility and shade stability make it suitable for certain aqueous ink and paper coloration uses. Check pigment/dye compatibility, binder chemistry and migration requirements for the end use.
