Synthesis and salt-free dyeing characteristics of cationic reactive dyes containing polyetheramine segments / Guo W. Wang in COLORATION TECHNOLOGY, Vol. 132, N° 4 (08/2016)  

[article]  inCOLORATION TECHNOLOGY > Vol. 132, N° 4 (08/2016) . - p. 344-349 Titre : Synthesis and salt-free dyeing characteristics of cationic reactive dyes containing polyetheramine segments Type de document : texte imprimé Auteurs : Guo W. Wang, Auteur ; Chun L. Zheng, Auteur ; Sun Jie, Auteur Année de publication : 2016 Article en page(s) : p. 344-349 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Adsorption Colorants -- Synthèse Colorants cationiques Colorants réactifs Fibres cellulosiques Polyéther amine Teinture -- Fibres textiles Index. décimale : 667.3 Teinture et impression des tissus Résumé : A series of cationic reactive dyes containing both quaternary ammonium and polyetheramine as soluble groups and monochlorotriazine as a reactive group have been synthesised and applied to cellulose fibre by salt-free exhaust dyeing. Investigation of the synthesis method and dyeing properties of these cationic reactive dyes showed that the best pH value for these dyes is 6, and also that these cationic reactive dyes give a high substantivity to cellulose. In the salt-free dyeing process, their adsorption was consistent with the Langmuir isotherm during the primary exhaustion stage, but in the secondary exhaustion stage the adsorption was in accordance with the Freundlich isotherm, and their secondary exhaustion reached up to 96% and above. Moreover, the degree of fixation, the levelling, and the transfer properties on cotton fabric were good. Light fastness reached grade 5–6, washing, perspiration, and dry rubbing fastness reached grade 4 and above, but wet rubbing fastness reached only grade 3–4. Note de contenu : - EXPERIMENTAL : Materials and chemicals - Synthesis of reactive cationic dyes - Dyeing procedure - Colour strength of dyes on fabric - Measurement of dye exhaustion and fixation - Levelling properties - Transfer properties - Fastness testing - RESULTS AND DISCUSSION : Application of dyes - Effect of pH on dyeing performance - Levelling and transfer properties - Fastness properties DOI : 10.1111/cote.12225 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12225 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26736 [article]

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