Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/32451
Title: Action of surfactants on the levelling behaviour of dyeing of wool with reactive dyes
Authors: Karmakar, S R
Shah, S M
Keywords: Dyeing;Dye-surfactant interaction;Reactive dyes;Surfactant;Triazine dyes;Wool fibre
Issue Date: Jun-1993
Publisher: NISCAIR-CSIR, India
Abstract: The interaction of mono- and dichlorotriazine dyes (reactive dyes) with surfactants of different ionic nature in aqueous solutions has been studied spectrophotometrically. A definite change in the absorption maxima is interpreted in terms of compound formation. The extent of shift of λmax depends not only on the ionic nature of the surfactants but also on the number of chlorine atoms present in the reactive system of dyes. The amount of surfactant required to shift the absorption maxima is generally less at higher pH values. The addition of surfactant in the dye bath appreciably decreases the percentage hydrolysis of reactive dyes and the maximum exhaustion and fixation take place at pH 4.7. From the sorption behaviour of reactive dyes on wool in presence and absence of surfactants, a possible mechanism of interaction in the dyeing process is discussed from the practical dyeing point of view to produce retarding and levelling effects.
Page(s): 91-96
URI: http://hdl.handle.net/123456789/32451
ISSN: 0975-1025 (Online); 0971-0426 (Print)
Appears in Collections:IJFTR Vol.18(2) [June 1993]

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