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Design and application of a multifunctional reactive dye capable of high fixation efficiency on cellulose / K. F. Morris in COLORATION TECHNOLOGY, Vol. 124, N° 3 (2008)
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Titre : Design and application of a multifunctional reactive dye capable of high fixation efficiency on cellulose Type de document : texte imprimé Auteurs : K. F. Morris, Auteur ; David M. Lewis, Auteur ; Peter J. Broadbent, Auteur Année de publication : 2009 Article en page(s) : p. 186-194 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : A polyfunctional reactive dye containing two dichloro-s-triazine residues linked through aliphatic amino groups via a third triazine system to the chromophoric residue has been prepared. The dye was synthesised stepwise from a specially synthesised 2,4-dichloro-s-triazine dyes. The first step is the reaction of both carbon–chlorine sites in the 'parent' dye with 2 mol ethylenediamine under selected conditions of pH and temperature; these conditions ensure that only one of the amino groups in the ethylenediamine will react to give the bis-2,4-aminoethyleneaminotriazine dye. The second step is the condensation of 2 mol cyanuric chloride with the two pendant primary amino groups. The alkylamino-linked dichloro-s-triazine dyes show very different dyeing properties when compared with those shown by the parent dichloro-s-triazine dye, which has the reactive group linked directly into the aromatic chromophore; in particular, the new dyes have high fixation efficiencies when dyed on cotton at 50 °C and the dye–fibre bond stability to boiling acidic conditions is very good. DOI : 10.1111/j.1478-4408.2008.00140.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2008.00140.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3161
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