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The dyeing of nylon and cotton cloth with azo dyes: Kinetics and mechanism

Abstract:
The mechanism of the dyeing of cotton and nylon cloth by the azo dyes Orange G and Sunset Yellow FCF was investigated using a channel flow cell. The variation in dyeing with flow rate was found to proceed via a mechanism in which the flux of dye entering the cloth relative to the flux of dye to the cloth surface decreased with increasing flow rate. A mechanism is deduced in which the dye passes from bulk solution, through a porous surface layer within the cloth, before passing into the bulk cloth. Adsorption onto surface sites in this porous layer blocks the passage of further dye into the cloth. Kinetic parameters for such a mechanism are given.
Publication status:
Published

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Publisher copy:
10.1006/jcis.1996.0342

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author


Journal:
JOURNAL OF COLLOID AND INTERFACE SCIENCE More from this journal
Volume:
180
Issue:
2
Pages:
605-613
Publication date:
1996-06-25
DOI:
ISSN:
0021-9797


Language:
English
UUID:
uuid:499899f9-1186-491e-bf22-e1a7fb7ccbad
Local pid:
pubs:45248
Source identifiers:
45248
Deposit date:
2012-12-19

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