HP YELLOW 1659 / PIGMENT YELLOW 74
P.Y.74 specimens are fast to alkali, acid, and soap. Other aspects of their fastness in print, such as butter resistance and fastness to the solvent mixture described in DIN 16 524 P.Y.74 varieties with comparatively fine Commercially Available Monoazo Yellow and Orange Pigments 225 particle sizes are also used in the paint industry, where they lend color to air drying and emulsion paints. Excellent tinctorial strength, especially in pastel shades, i.e., in white reductions, make P.Y.74 more advantageous on a cost/performance basis than the somewhat redder P.Y.1. A strong tendency to bloom, however, precludes the use of P.Y.74 in baking enamels.