Duasyn® Black R-KRL Liquid by Heubach is a reactive anionic dye with good light fastness, high surface tension & brilliance and low salt content. Possesses the advantage over powder grades of being non-dusting... view more

Duasyn® Direct Black HEF liquid by Heubach is a black colored trisazo dye. Highly recommended for use in writing inks, polishes and fiber-tip & felt-tip pen inks, stamping inks and wood stains. Duasyn® Direct Black HEF liquid suitable for... view more