vat dye

vat dye
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
• Syn: ↑vat color
• Hypernyms: ↑dye, ↑dyestuff

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noun or vat color
: any of a large and widely used class of water-insoluble generally fast dyes (as indigoid dyes and many anthraquinone dyes) that are formed on and in textile fibers by oxidation of a soluble reduced leuco form either prepared previously in a vat (sense 2b) or produced on the fibers by treating with a suspension or paste containing the unreduced dye and then reducing — see dye table I, solubilized vat dye

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Chem.
any of the class of insoluble dyes impregnated into textile fibers by reduction into soluble leuco bases that regenerate the insoluble dye on oxidation.
[1900-05]

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vat dye or vat color,
a dye, such as indigoid, that is insoluble in water and is made soluble by treatment with an alkaline reducing agent. Vat dyes are resistant to fading.

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n. a water-insoluble dye that is applied as an alkaline solution of a soluble leuco form, the color being obtained through oxidation
Derivatives:
vat-dyed adj.

Useful english dictionary. 2012.

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Look at other dictionaries:

  • Vat dye — Vat dyes are an ancient class of dyes, based on the natural dye, indigo, which is now produced synthetically. OverviewThe process vat dyeing refers to dyeing in a bucket or fat. It can be performed whenever a liquid, even shade over the entire… …   Wikipedia

  • vat dye — n. a colorfast dye made soluble for application to cloth, then oxidized and thus rendered insoluble in the cloth vat dyed adj …   English World dictionary

  • vat dye — vat′ dye n. chem. any of a class of water insoluble dyes that are taken up by textile fibers and then fixed by oxidation • Etymology: 1900–05 …   From formal English to slang

  • vat dye — leukodažiklis statusas T sritis chemija apibrėžtis Bespalvė tirpi leukobazė, kuri oksiduojama ant dažomos medžiagos virsta spalvotu junginiu. atitikmenys: angl. leuco dye; vat dye rus. лейкокраситель …   Chemijos terminų aiškinamasis žodynas

  • vat dye — kubinis dažiklis statusas T sritis chemija apibrėžtis Vandenyje netirpstantis dažiklis, kurį prieš dažymą reikia redukuoti į tirpų leukojunginį. atitikmenys: angl. vat dye rus. кубовый краситель …   Chemijos terminų aiškinamasis žodynas

  • vat dye — Chem. any of the class of insoluble dyes impregnated into textile fibers by reduction into soluble leuco bases that regenerate the insoluble dye on oxidation. [1900 05] * * * ▪ chemical compound       any of a large class of water insoluble dyes …   Universalium

  • vat dye — noun Date: 1903 a water insoluble generally fast dye used in the form of a vat liquor called also vat color …   New Collegiate Dictionary

  • vat dye — /ˈvæt daɪ/ (say vat duy) noun any of a group of insoluble dyes which are applied to fabrics by first reducing them to alkali soluble leuco bases. After dyeing, the insoluble dye is regenerated in the fibres of the material by oxidisation …  

  • 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 …   Wiktionary

  • vat dye — noun an insoluble dye that is applied to a fabric in a reducing bath which converts it to a soluble form, the colour being obtained on subsequent oxidation …   English new terms dictionary

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