This section is from the "A Complete Dictionary of Dry Goods" book, by George S. Cole. Also available from Amazon: A complete dictionary of dry goods and history of silk, cotton, linen, wool and other fibrous substances,: Including a full explanation of the modern processes ... together with various useful tables.
Coal Tar Colors. A name given to a numerous class of colors derived from coal tar by various complex chemical methods. From ordinary soft coal is obtained the means of producing over 400 shades of colors, nearly all of which are useful in dyeing fabrics. They are more often and properly called aniline colors, as aniline was the first of them discovered. [See Aniline]