A group of disazo condensation dyes that contain the benzimidazolone functional group. Benzimidazolone colorants were patented by Hoechst in the U.S. in 1960. They provide a series of yellow, brown, red, and violet dyes that are very lightfast. Benzimidazolone colors also have excellent bleed resistant and good heat stability. They are used in printing inks, plastics, automotive coatings, wood stains as well as a few artists oil paints and watercolors.
Synonyms and Related Terms
benzimidazolone (It.); naphthamide maroon [Daniel Smith]; carmine [Daniel Smith]
Resources and Citations
- B. Berrie, S.Q. Lomax, 'Azo Pigments: Their History, Synthesis, Properties and Use in Artists' Materials', Studies in the History of Art , National Gallery of Art, Washington DC, No. 57, 1997
- Website: www. handprint.com