Due to differences in users’ monitors, the colors presented are an approximation of the true color.
PR177-Anthraquinone Red
PR254-Pyrrole Red
PR177-Anthraquinone Red
anthraquinone
C14H8O2
Anthraquinone Red is a magenta colored pigment that is transparent and moderately intense. It tends to fade in tints and is suitable for all media.
Anthraquinone Red has good lightfastness and permanence in its masstone, while its tint lightfastness is moderate. Overall lightfastness and permanence varies by brand.
Anthraquinone pigments originated as textile vat dyes before being used as pigments. They became more popular with artists once it was discovered that careful preparation and grinding helped them to retain brilliance of color.
PR254-Pyrrole Red
organic, aminoketone
Bis-(p-chrolopheny)-1. 4-diketopyrrolo(3. 4-c)pyrrole
Pyrrole Red is opaque and has strong covering power. According to manufacturer Ciba, which uses the trade name Irgazin Red, it is a “clean, highly saturated mid shade red with high temperature resistance, excellent color strength, outstanding chemical, solvent and bleed resistance, and good weatherfastness.”
Pyrrole Red is considered to have excellent lightfastness among organic pigments in its class. Tests in industrial applications have given it scores of 7-8 on the Blue Wool Scale.
Pyrrole Red, used as an automotive paint and as a colorant in plastics, was developed as one of a range of pigments to replace lead based pigments. In art materials, it is often used as a synthetic and lightfast replacement for carmine, a laked pigment that was originally produced from the body of the cochineal insect. It is also used to replace the older naphthol reds, organic red pigments that are sometimes only marginally lightfast and weatherfast.
UPC Code: 4900669000020
ASIN #: B001MTCNGC