Synthesis and application of a novel, triphendioxazine-based, phosphorus-containing acid dye for wool / Jinhai Cui in COLORATION TECHNOLOGY, Vol. 134, N° 5 (10/2018)  

[article]  inCOLORATION TECHNOLOGY > Vol. 134, N° 5 (10/2018) . - p. 381-389 Titre : Synthesis and application of a novel, triphendioxazine-based, phosphorus-containing acid dye for wool Type de document : texte imprimé Auteurs : Jinhai Cui, Auteur ; Shufen Zhang, Auteur Année de publication : 2018 Article en page(s) : p. 381-389 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bleu marine Colorants -- Synthèse Colorants acides Laine Photostabilité Triphénodioxazine Index. décimale : 667.3 Teinture et impression des tissus Résumé : A novel phosphorus‐containing acid dye based on triphendioxazine was designed and synthesised from diphenylamine through a series of reactions. The dye has a navy-blue colour, high molar extinction coefficient of 5.32 × 104 l/mol·cm, and high substantivity for dyeing wool in a salt-free, aqueous dyebath. A high exhaustion value of 98.2% on wool fabrics was recorded at 3% omf and a liquor ratio of 1:20. The wash fastness values of the acid dye, including colour change and staining on cotton and wool, were grades 5, 4 and 4–5, respectively. The dry and wet fastness are grades 4–5 and 4, respectively. In addition, light fastness reaches grades 6–7 at 3% omf dye concentration. These dye properties are better than those of commercial triphendioxazine dyes, for example, CI Direct Blue 106 and CI Reactive Blue 198, under analogous dyeing conditions. Note de contenu : - EXPERIMENTAL : Materials - Methods - Synthesis of PAS from triphendioxazine - Measurement of UV-visible spectra, standard dyeing curves and PAD dyeing curves - Measurements for the performance of dyed wool - RESULTS AND DISCUSSION : Synthesis of PAD from triphendioxazine and its spectrum - Effect of pH on the dyeing properties of PAD - Effect of inorganic salts on the dyeing properties of PAD - Effect of the dye amount on the dyeing properties of PAD - Colour fastness of the dyes wool fabrics DOI : 10.1111/cote.12352 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12352 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31163 [article]

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