×
×

Improved Cotton Dyeing with the Direct Dye Solamine Fast Red 4BL in the Presence of Ethylenediamine tetra(methylenephosphonic) acid

Ethylenediamine tetra(methylenephosphonic) acid when adsorbed by cotton fibres prior to the application of the direct dye Solamine Fast Red 4BL causes a marked increase rate of dyeing. It also improves the wet fastness of the dyed cotton

Leave a Reply