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Quinacridone is an organic compound used as a pigment. Numerous derivatives constitute the quinacridone pigment family, which finds extensive use in industrial colorant applications such as robust outdoor paints, inkjet printer ink, tattoo inks, artists' watercolor paints, and color laser printer toner. As pigments, the quinacridones are insoluble.
Colour Index International (CII) is a reference database jointly maintained by the Society of Dyers and Colourists and the American Association of Textile Chemists and Colorists. [1] It currently contains over 27,000 individual products listed under 13,000 Colour Index Generic Names. [ 2 ]
The pigment is noteworthy for its vibrant, near-perfect blue color and unusually high NIR reflectance. [1] [2] The color may be adjusted by varying the In/Mn ratio in the pigment's base formula of YIn 1−x Mn x O 3, but the bluest pigment, YIn 0.8 Mn 0.2 O 3, has a color comparable to standard cobalt blue CoAl 2 O 4 pigments. [2]
Aureolin (sometimes called cobalt yellow) is a pigment sparingly used in oil and watercolor painting. Its color index name is PY40 (40th entry on list of yellow pigments). It was first made in 1831 by Nikolaus Wolfgang Fischer in Breslau characterizing it as "Doppelsalze" or double-salts [1] and its chemical composition is potassium cobaltinitrite.
Not all watercolors are made equal. Depending on the kinds of pigments used and how they’re processed and formulated, the quality of watercolors can range from paints designed for kids to those ...
An artist working on a watercolor using a round brush Love's Messenger, an 1885 watercolor and tempera by Marie Spartali Stillman. Watercolor (American English) or watercolour (Commonwealth English; see spelling differences), also aquarelle (French:; from Italian diminutive of Latin aqua 'water'), [1] is a painting method [2] in which the paints are made of pigments suspended in a water-based ...
They are also used in artistic oil paints, acrylics and watercolors. These pigments are usually semi-transparent and range from orange-yellow to yellow-greens. Related organic pigments are the diarylide pigments. Overall, these pigments have partially displaced the toxic cadmium yellow in the marketplace.
Gamboge (/ ɡ æ m ˈ b oʊ ʒ,-ˈ b uː ʒ / gam-BOHZH, - BOOZH) [1] is a deep-yellow pigment derived from a species of tree that primarily grows in Cambodia. [2] Popular in east Asian watercolor works, it has been used across a number of media dating back to the 8th century.
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