Aniline brown
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Description
A synthetic brown dye prepared by oxidizing rosaniline. Aniline brown was first made by Jacobson. It directly forms a reddish brown color with silk and a brown color with wool. Aniline brown dyes deeply penetrate the fibers of materials rather than just sitting on the surface. This provides a transparent, vibrant coloration that beautifully preserves the visibility of underlying textures, such as wood grain or the natural hide of leather.
Physical and Chemical Properties
- Insoluble in water
- Soluble in alcohol and other organic solvents
Resources and Citations
- F. Crace-Calvert, Dyeing and Calico Printing, Palmer & Howe, London, 1876
- E. Hagan, I. Castro-Soto, M. Breault, et al. The lightfastness of early synthetic organic dyes. Herit Sci 10, 50 (2022).