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Acid Yellow 246

Acid Yellow 246 is a high-strength, anionic acid dye that produces a brilliant greenish-yellow shade with excellent leveling on protein and polyamide fibers. It is commonly used for exhaust dyeing of nylon (PA), wool, and silk, as well as for leather shading and paper coloration. The dye shows smooth build-up from pale to deep shades, good migration at the boil, and clean, bright tones that remain stable across the typical acid pH window used in dyehouses.

TRADE NAME:

Acid Yellow 3R,Acid Yellow YTP

Application of Acid Yellow 246:

  • ‍used for wool in strong acid dye in the bath dyeing, silk dyeing in acetic acid bath of fire line, polyamide fiber dyeing in formic acid dye bath.
  • this product can directly on the wool fabric printing and dyeing leather, and can be made into color which. On paper surface shading.
  • can also be used in paint, medicine and cosmetics of shading.‍

Technical Specifications

  • ‍CAS NO: 119822-74-1
  • Molecular Formula:C26H18N3NaO5S2
  • Molecular Weight:539.06
  • Shade:Yellow‍


What fibers are best suited to Acid Yellow 246?

It performs best on polyamide (nylon) fibers and protein fibers such as wool and silk. It can also be used for leather shading and paper tinting, where a clean, bright yellow is required.

Does Acid Yellow 246 show good leveling on nylon?

Yes. It has strong migration and leveling properties, helping reduce barre and streakiness on textured or non-uniform nylon substrates.

Is Acid Yellow 246 metal-free and APEO-free?

Commercial grades are typically low in heavy metals, and APEO-free options are available. Always confirm with the supplied COA and compliance documentation for your region.

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