Index Number: Pigment Yellow 139
C.I. Structure Number: 56298
Chemical category: Barbituric acid derivatives
Molecular formula: C₁₆ H₉N₅O₆
Relative molecular mass: 367.30
Ranbar yellow P3190/P3192/P3194/P3195 isoindoline yellow organic pigment, pigment yellow 139, red light yellow hue, the color of these 4 grades has gradually changed from red to green.
Red light yellow organic pigments suitable for coatings on plastics and printing ink products. Different particle size distributions show different color characteristics. The hue angle can be 78, 71, 66 degrees depending on the average particle size; the non-transparent type presents a stronger red Light, increasing the concentration does not affect the gloss, and has excellent light and weather fastness; it can be used with inorganic pigments to replace chrome yellow.
It is suitable for high-end coatings (car repair paints), with light resistance of 7~8 grades (1/3 SD) in alkyd melamine resin; resistance to bleeding in soft PVC, and Temperature resistance in high density polyethylene (1 / 3 SD) 250 ° C, it is suitable for coloring the original pulp of polypropylene, unsaturated polyester and PUR; used for high-end printing ink, light resistance level 7 (1/3 SD).
