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Effect of sulphonation level upon the fixation and build up properties of reactive dyes
Author(s) -
Biolchi F,
Kawabata A,
Taylor J A
Publication year - 2006
Publication title -
coloration technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 1472-3581
DOI - 10.1111/j.1478-4408.2006.00020.x
Subject(s) - dyeing , chemistry , fixation (population genetics) , reactive dye , photochemistry , polymer chemistry , organic chemistry , biochemistry , gene
A number of closely related dyes, each possessing a single β ‐sulphatoethyl sulphonyl reactive group and a variable number of sulphonate residues, were prepared and their dyeing behaviour evaluated. As the level of sulphonation of the dyes increased, both fixation efficiency and build up on cotton were reduced. These observations were attributed to increased electrostatic repulsion, between dye and fibre, as the anionicity, or level of sulphonation, of the dyes was increased. In support of this, the build up of a monosulphonated dye with one reactive group, was as good as that of a market leading bireactive disulphonated dye.