Literary notes about tar (AI summary)
In literature and technical writing alike, “tar” is often invoked not merely as a substance but as a source or descriptor of color, particularly in the context of synthetic dyes and pigments. For instance, texts note that coal tar dyes—with their enduring and vibrant hues—have supplanted traditional vegetable dyes, as observed in [1] and [2]. This emphasis on tar’s role in color production is deepened by discussions of chemical colorings derived from coal tar, highlighted in [3] and further exemplified by the aniline-based pigments that yield a fine yellow hue in [4]. Even more, studies detailing benzene’s contribution to colour-producing constituents of coal tar, as mentioned in [5], and the widespread use of artificial tar-colours in items like confectionery [6], underscore tar’s significant influence in the development of modern synthetic colorants.
- Coal tar dyes have come to stay, vegetable dyes for the most part have gone and will not return, and there is no sadness in the word.
— from Batik and Other Pattern Dyeing by Ida Strawn Baker - The coal-tar colours are mostly either “acid” or “basic.”
— from The Principles of Leather Manufacture by H. R. (Henry Richardson) Procter - Some of the chemical colorings are derivatives of coal tar, just as are the coal-tar flavorings.
— from Woman's Institute Library of Cookery Volume 5: Fruit and Fruit Desserts; Canning and Drying; Jelly Making, Preserving and Pickling; Confections; Beverages; the Planning of Meals by Woman's Institute of Domestic Arts and Sciences - Aniline, the great source of the coal tar colours, yields also a fine yellow.
— from On Molecular and Microscopic Science, Volume 1 (of 2) by Mary Somerville - I pointed to benzene or benzol in the table as a hydrocarbon, C 6 H 6 , which forms a principal colour-producing constituent of coal-tar.
— from The Chemistry of Hat ManufacturingLectures Delivered Before the Hat Manufacturers' Association by Watson Smith - The brilliant colours of cheap sugar confectionery are almost invariably produced by artificial tar-colours.
— from The Project Gutenberg Encyclopedia Volume 1 of 28 by Project Gutenberg
