The formulation of each color is modified individually to compensate for the inherent differences in the working characteristics of pigments. The result is an even consistency across the entire palette of colors.
Color Swatch created using heavy application/medium application/50% tint and was applied on acrylic primed canvas (7 oz) material.
organic, condensed disazo
PR221 is a transparent bluish-red pigment with high tinting strength compared to other transparent bluish-red pigments. Although its hue is not a perfect match, it is one of several newer red pigments that is being used to replace traditional fugitive colors such as carmine and alizarin crimson.
PR221 has very good permanence and lightfastness, but is not as resistant to fading as the quinicridone pigments.
No acute toxic effects are known, but possible chronic effects have not been well studied.
Industrial processes for manufacturing condensed disazo pigments were developed by CIBA in the 20th century.
Carmine Hue, Rose Madder Hue, Pink Madder Hue
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