METHOD FOR REDUCING OIL ABSORPTION OF PIGMENT CONTAINING BETA-COPPER PHTHALOCYANINE AND COMPOSITE GREEN PIGMENT

摘要

The addition of Ferrite Yellow to a pigment containing beta -copper phthalocyanine reduces the oil absorption thereof to a value lower than the weighted average of the components. A non lead-based composite green pigment suitable as a substitute for a chrome green pigment is prepared from organic yellow, beta -copper phthalocyanine, and Ferrite Yellow pigments. The spectral reflectance of a paint composition comprising said composite pigment is similar to one comprising a chrome green pigment.