acid dye

American  

noun

Chemistry.

1. any of a class of dyes containing one or more acidic groups, as the sulfo group: used in acid solution chiefly for dyeing wool and silk.

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acid dye British  

noun

1. a dye in which the chromophore is part of a negative ion usually applied from an acidic solution

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Etymology

Origin of acid dye

First recorded in 1885–90

Example Sentences

Lakes and rivers are ruined by the commercial gentry's waste acid, dye, oil, gas, etc., and the very air we breathe is poisoned by the fumes of the money-makers' chimneys.

From The Determined Angler and the Brook Trout an anthological volume of trout fishing, trout histories, trout lore, trout resorts, and trout tackle by Bradford, Charles Barker

Chromotrop 10�B and 4�lb. sulphuric acid; dye, and develop the black by adding to the same bath 3�lb. bichromate of potash and 1�lb. sulphuric acid.

From The Dyeing of Woollen Fabrics by Beech, Franklin