Textile Dyeing Auxiliaries
50 products
Textile Dyeing Auxiliaries
Levelling agents, fixatives & auxiliaries for textile dyeing and finishing
50 products
50 products
textile dyeing auxiliaries
Urea (Dye Solubilizer for Printing)
CAS: 57-13-6
Technical-grade urea is an essential auxiliary in reactive dye printing paste formulations. It acts as a dye solubilizer and hygroscopic agent that maintains moisture in the print area during steaming, promoting dye dissolution and migration into the fiber for high fixation efficiency. Typically used at 50–200 g/kg in print paste alongside sodium alginate and alkali.
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Vat Dye Blue 4 (Indanthrone)
CAS: 81-77-6
Vat Dye Blue 4, chemically known as Indanthrone, is the benchmark vat dye for cotton delivering deep navy-blue shades with the highest known light and wash fastness ratings. Applied via sodium dithionite/caustic soda reduction, it forms an insoluble colored pigment within the fiber on re-oxidation. Preferred in workwear, military uniform, and high-end denim dyeing.
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