Definitions for vat dye

This page provides all possible meanings and translations of the word vat dye

Random House Webster's College Dictionary

vat′ dye`(n.)

  1. any of a class of water-insoluble dyes that are taken up by textile fibers and then fixed by oxidation.

    Category: Chemistry

Origin of vat dye:

1900–05

Princeton's WordNet

  1. vat dye, vat color(noun)

    a water-insoluble dye that is applied by reducing the dye to an alkaline form, applying the dye, then regenerating the insoluble dye by oxidation in the material; used for dyeing cotton

Wiktionary

  1. vat dye(Noun)

    Any of a type of dye, many based on indigo, in which a soluble form is used to impregnate a fibre or fabric and is then converted to an insoluble form

Freebase

  1. Vat dye

    Vat dyes are an ancient class of dyes, based on the natural dye, indigo, which is now produced synthetically. Vat dyeing is a process that refers to dyeing that takes place in a bucket or vat. Almost any dye, including fiber-reactive dyes, direct dyes, and acid dyes, can be used in a vat dye. Cotton, wool, and other fibers can be all dyed with vat dyes. Although almost all dyeing can be done in a vat, the term vat dye is used to describe a chemical class of dyes that are applied to cellulosic fibre using a redox reaction as described below. Because of the use of caustic soda, and the very high ph of the dye bath in the dyeing process, wool cannot be dyed using vat dyestuffs. Wool is soluble in caustic soda solutions.

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