Sulfur Dyes

Parikshit Goswami, Montu Basak

Research output: Chapter in Book/Report/Conference proceedingEntry for encyclopedia/dictionarypeer-review


Sulfur dyes are synthetic organic substantive dyes, produced by thionation or sulfurization of organic intermediates containing nitro and amino groups. The main characteristic feature of this dye class is that they all contain sulfur linkages within their molecules. They are like vat dyes, which are highly colored, water-insoluble compounds, and they need to be converted into substantive leuco form before application to the textile materials. This conversion needs reducing agents, which sever the sulfur linkage and break down the molecules into water-soluble components (leuco form) that have an affinity toward cellulosic fibers.
Original languageEnglish
Title of host publicationKirk-Othmer Encyclopedia of Chemical Technology
Number of pages31
ISBN (Electronic)9780471238966
Publication statusPublished - 15 Dec 2014
Externally publishedYes


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