any of the class of insoluble dyes impregnated into textile fibers by reduction into soluble leuco bases that regenerate the insoluble dye on oxidation.
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How to use vat dye in a sentence
Indigo, a typical vat dye, is prepared both artificially and from natural sources.The New Gresham Encyclopedia | Various
British Dictionary definitions for vat dye
a dye, such as indigo, that is applied by first reducing it to its leuco base, which is soluble in alkali, and then regenerating the insoluble dye by oxidation in the fibres of the material
- vat-dyed, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012