Chemical base that yields many colors, it is a colorless, oily, aromatic liquid. Presently obtained from coal-tar, but was made by distilling indigo with caustic potash. The development of these dyes was the highlight of the nineteenth century research in dyes.
Synthetic colors which dissolve in the solvent for which they are formulated, i.e., water, alcohol, or oil. Many woodwork finishers refer to nearly all dyes as "aniline" even when this is not chemically true.
Chemical for carpets and other fabrics, introduced c.1870. They tended to run or fade and were replaced by colour-fast CHROME DYES in the early 20thC.
Chemical dyes (as opposed to vegetable ones) derived from coal tar. These were developed for use in the late 1850s.
A family of colorants synthesized from coal-tar, including reds, black, greens, and blue-reds.
The first synthetic dyes used in dyeing pile materials for rugs. The first aniline dye was developed in the 1850s. These dyes faded rapidly with exposure to light and water, hence they were replaced with Chrome synthetic dyes in all countries.
Synthetic dyes first invented (discovered) in 1856 by William Perkins. The term is now used to describe any synthetic dyes used in Oriental or Navajo rugs.