Index Number: Pigment Red 185
C.I. Structure Number: 12516
Chemical category: Benzimidazolones
Molecular formula: C₂₇ H₂₄ N₆ O₆ S
Relative molecular mass: 560.63
Ranbar Red P1430 magenta benzimidazolone organic pigment, Pigment Red 185, this pigment gives a blue-red red color with a hue angle of 358.0 degrees (1/3 SD, HDPE), almost completely insoluble in common organic solvents, resistant to sterilization .
Heat resistance in printing ink is 220℃/10min, suitable for metal decoration and laminated plastic film printing ink, light fastness is 6-7 (1/1 SD);
Used for plastic coloring, good migration resistance in soft PVC, light fastness 6-7 (1/3 SD), also used for PE coloring, heat resistance less than 200°C, and polypropylene puree coloring.
