Pyrrole Red

Colour: Pyrrole Red
Lightfastness: AA
Opacity: Semi-opaque
Pigment: PR254
Pigment description: Diketopyrrolo-pyrrole Red
ASTM Lightfastness classification: I
Pigment classification: Synthetic organic
Color Index Number: 56110
Viscosity range (mPa.s): 800 - 1,500

Color Index
The pigments used are both inorganic and organic. Inorganic pigments have been used since antiquity and the vast majority come from or are extracted from minerals and clays, such as natural earths, siennas, and ochres. Titanium, carbon, ultramarine blue, cobalt and cadmium pigments also belong to this category. Many of them are currently synthesised in industrial processes. Organic pigments are more modern; they were developed at the beginning of the 20th century thanks to new synthesis methods in Organic Chemistry. These synthetic pigments are now a very important group in the manufacture of colours for artists, producing bright and luminous tones of extraordinary intensity with excellent stability and permanence. The range of organic pigments is currently very extensive and includes azo pigments, blues, greens, phthalocyanines, dioxazines, pyrroles, anthraquinones, quinacridones, etc.
Leer menos ▲