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Coloration properties and clearability of phthalimide-derived monoazo disperse dyes containing ester groups / Jae-Hong Choi in COLORATION TECHNOLOGY, Vol. 129, N° 5 (10/2013)
[article]
Titre : Coloration properties and clearability of phthalimide-derived monoazo disperse dyes containing ester groups Type de document : texte imprimé Auteurs : Jae-Hong Choi, Auteur ; Jong-Yoon Choi, Auteur ; Eun-Mi Kim, Auteur ; Jae-Pil Kim, Auteur ; Andrew D. Towns, Auteur ; Chun Yoon, Auteur Année de publication : 2013 Article en page(s) : p. 352-359 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Absorption
Colorants azoïques
Colorimétrie
Paramètres de solubilité
PhtalimideLe phtalimide est un imide aromatique, c'est-à -dire un composé organique avec deux groupements carbonyle liés à un atome d'azote trigonal. C'est l'imide de l'acide benzène-1,2-dicarboxylique (acide phtalique).
Propriétés : Le phtalimide est un solide blanc cristallisé à température ambiante. Il est pratiquement insoluble dans l'eau froide, très peu soluble dans le benzène et l'éther de pétrole, et assez soluble dans l'éthanol chaud, l'acide éthanoïque et les bases concentrées.
Obtention : Le phtalimide est obtenu par réaction à chaud de l'anhydride phtalique avec l'ammoniac en solution aqueuse.
Polyesters
Solidité de la couleur
Solubilité
Teinture -- Fibres textiles synthétiquesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The coloration properties and clearability of disperse dyes prepared from phthalimide-derived diazo components and a coupling component containing two carboxylic acid ester groups have been investigated. Members of the series featured C2–C4 alkyl substituents on their phthalimidyl nitrogen atom. The nature of the N-alkyl group made no consistent difference to dye uptake on polyester. No correlation was found between percentage exhaustion and calculated solubility parameters. Wash fastness was extremely good. Comparison with analogues indicated that the diester motif was of significant extra benefit to wash fastness for phthalimide-derived dyes, but did not increase photostability above the lower range of commercial acceptability. Clearability was compared with that of dyes lacking one or both hydrolysable structural features, as well as with that of some industrial dyes. The novel dyes exhibited a greater tendency to be solubilised, consistent with hydrolysis of their ester and/or phthalimide functionalities. Note de contenu : - EXPERIMENTAL : Materials - Milling of dyes - Dyeing and reduction clearing procedure - Colorimetric measurements - Destination of dye exhaustion yields - Colour fastness testing - Testing the effect of simulated reduction clearing on dyes
- RESULTS AND DISCUSSION : Dye uptake - Calculations of the solubility parameter - Colour properties of the dyes on polyester - Colour fastness - Assessment of clearabilityDOI : 10.1111/cote.12037 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12037/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19353
in COLORATION TECHNOLOGY > Vol. 129, N° 5 (10/2013) . - p. 352-359[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15533 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of temporarily solubilised azo disperse dyes containing a ?-sulphatoethylsulphonyl group and dispersant-free dyeing of polyethylene terephthalate fabric / Jae-Pil Kim in COLORATION TECHNOLOGY, Vol. 132, N° 5 (10/2016)
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Titre : Synthesis of temporarily solubilised azo disperse dyes containing a ?-sulphatoethylsulphonyl group and dispersant-free dyeing of polyethylene terephthalate fabric Type de document : texte imprimé Auteurs : Jae-Pil Kim, Auteur ; Ji Su Kim, Auteur ; Jong Seung Park, Auteur ; Seung Soon Jang, Auteur ; Jung Jin Lee, Auteur Année de publication : 2016 Article en page(s) : p. 368-375 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Synthèse
Colorants azoïques
Essais (technologie)
Essais de résilience
Polyéthylène téréphtalate
Résistance à l'abrasion
Résistance au lavage
Solidité de la couleur
Teinture -- Fibres textiles synthétiquesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Disperse dyes containing a ?-sulphatoethylsulphonyl group have temporary solubility and can be applied for dispersant-free dyeing of hydrophobic fibre. Six novel temporarily solubilised azo disperse dyes having a ?-sulphatoethylsulphonyl group in their structures were synthesised, and their dyeing properties on polyester were investigated. As a dye intermediate, a diazo component having dibromo groups was prepared, and 4-diethylamino-4?-(2-sulphatoethylsulphonyl-4,6-dibromo)azobenzene dyes were prepared by a diazo-coupling reaction. Then, the dyes containing dicyano groups were prepared by cyanation of corresponding dyes with dibromo groups. The absorption maxima of the dyes were affected by the substituents in the diazo and coupling component rings and varied from 434 to 616 nm in dimethylformamide. Polyethylene terephthalate woven fabric could be dyed with the synthesised temporarily solubilised dyes without using any dispersants. Dyebath pH affected the K/S value at maximum absorption as well as percentage exhaustion on polyethylene terephthalate fabric, and the optimum pH was 5. The dyes gave brownish orange, red, purple, and greenish blue hues on polyethylene terephthalate fabrics, and colour build-up was good. Wash fastness was good to excellent, rubbing fastness was moderate to excellent, and light fastness was poor to moderate. Note de contenu : - EXPERIMENTAL : Materials - Instrumentation - Synthesis of intermediate 2 - Synthesis of dyes 4 to 9 - Dispersant-free dyeing of polyester - Fastness tests
- RESULTS AND DISCUSSION : Synthesis of intermediates and dyes - Spectroscopic properties of dyes - Dyeing properties - Fastness propertiesDOI : 10.1111/cote.12224 En ligne : https://drive.google.com/file/d/1DA3-Naq1l4nv0OxJVzw1S2kEkGJwrlrK/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27225
in COLORATION TECHNOLOGY > Vol. 132, N° 5 (10/2016) . - p. 368-375[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18353 - Périodique Bibliothèque principale Documentaires Disponible