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Encyclopedia > Sulfur dye

Sulfur dyes are the biggest volume dyes manufactured for cotton. They are cheap, generally have good wash-fastness and are easy to apply. The dyes are absorbed by cotton from a bath containing sulfide and are insolubilised within the fibre by oxidation. During this process the dyes form complex larger molecules which is the basis of their good wash-fastness.


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Sulfur dye - encyclopedia article about Sulfur dye. (355 words)
Sulfur dyes are the biggest volume dyes dye can generally be described as a coloured substance that has an affinity to the substrate to which it is being applied.
The dye is usually used as an aqueous solution, and may require a mordant to improve the fastness of the dye on the fibre.
The dyes are absorbed by cotton from a bath containing sulfide sulfide (sulphide in British and Canadian English) is a chemical compound or combination of sulfur with an oxidation number of -2, with another chemical element or a radical thereof.
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