vat dye

a colorfast dye made soluble for application to cloth, then oxidized and thus rendered insoluble in the cloth

Related Forms:

See vat dye in American Heritage Dictionary 4

noun
A dye, such as indigo, that produces a fast color by impregnating fiber with a reduced soluble form that is then oxidized to an insoluble form.

Related Forms:

  • vatˈ-dyedˌ (vătˈdīdˌ) adjective
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