Methyl methacrylate-assisted dyeing of polyamide microfibre / Soleimani-Gorgani Atasheh in COLORATION TECHNOLOGY, Vol. 127, N° 4 (2011)

[article]  inCOLORATION TECHNOLOGY > Vol. 127, N° 4 (2011) . - p. 223-226 Titre : Methyl methacrylate-assisted dyeing of polyamide microfibre Type de document : texte imprimé Auteurs : Soleimani-Gorgani Atasheh, Auteur ; John A. Taylor, Auteur Année de publication : 2011 Article en page(s) : p. 223-226 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Fibres textiles Méthacrylate de méthyle Microfibres Microscopie électronique à balayage Polyamides Un polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine. Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères. Teinture -- Fibres textiles synthétiques Index. décimale : 667.3 Teinture et impression des tissus Résumé : Polyamide microfibres were dyed using disperse dye in the presence and absence of methyl methacrylate. The dye uptake and colour strength in the presence of methyl methacrylate were substantially higher than in its absence. Scanning electron microscope analysis showed that there was a dye layer on the microfibre surface formed by methyl methacrylate adsorption after dyeing. Differential scanning calorimetry measurement showed that the glass transition temperature of the polyamide microfibre reduced following methyl methacrylate treatment. The ultimate consequence of all these functions was to facilitate diffusion of dye molecules into the microfibre, thereby increasing the colour strength. The wash fastness of the dyed samples was identical for the two different dyebaths, although there were slight differences in the staining grades. The rub fastness of the methyl methacrylate-treated samples was improved by ca. half a grade. The methyl methacrylate had no effect on light fastness. Note de contenu : EXPERIMENTAL : Materials - Dyeing procedure - Colour strength measurements - Dye uptake - Wash fastness - Surface morphology - Glass transition temperature. RESULTS AND DISCUSSION : Effect of monomer concentration on dye uptake and colour strength (K/S) - Effect of monomer on glass trnasition temperature of polyamide microfibre - Dyeing rate - Colour fastness. DOI : 10.1111/j.1478-4408.2011.00302.x Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11901 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
013185	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Single-phase ink-jet printing onto cotton fabric / Soleimani-Gorgani Atasheh in COLORATION TECHNOLOGY, Vol. 129, N° 2 (04/2013)  

[article]  inCOLORATION TECHNOLOGY > Vol. 129, N° 2 (04/2013) . - p. 109-113 Titre : Single-phase ink-jet printing onto cotton fabric Type de document : texte imprimé Auteurs : Soleimani-Gorgani Atasheh, Auteur ; Najva Shakib, Auteur Année de publication : 2013 Article en page(s) : p. 109-113 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants réactifs Coton Le coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles). Couleurs -- Stabilité Impression jet d'encre Impression sur étoffes Résistance au lavage Sels de sodium Teinture -- Fibres textiles Index. décimale : 667.3 Teinture et impression des tissus Résumé : The current commercial application of ink-jet reactive inks to cotton fabrics requires pretreating with pad liquor containing a thickener, urea and alkali prior to printing. In this study, attempts have been made to develop a reactive ink-jet print in a single-phase process by adding an organic salt to the ink formulation and hence removing the need to pretreat fabrics. This approach utilises inks containing both a reactive dye, in this case Procion Red H-E3B, and an organic salt such as sodium formate, sodium acetate, sodium propionate or tri-sodium citrate. The behaviour of a novel reactive ink formulation for ink-jet printing on to cotton fabric was evaluated at different pH vlaues. The results at optimum pH indicated that printed non-pretreated fabrics with ink containing organic salts exhibited a higher level of reactive dye fixation than printed pretreated fabric containing no organic salt ink. The yielded prints demonstrate excellent colour fastness to washing and dry/wet crocking properties. The light fastness of the printed fabrics was improved by adding an organic salt to the ink formulation. Note de contenu : - EXPERIMENTAL : Materials - Equipment and instrumentation - Fabric pretreatment - Ink-jet printing - Determination of absorbed dye fixation - RESULTS AND DISCUSSION : Effect of pH on printing performance - Effect of organic salts on absorbed dye fixation - Effect of organic salts on colorimetric properties - Colour fastness properties DOI : 10.1111/cote.12011 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12011/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18049 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
14906	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Synthesis and evaluation of a novel blue cationic reactive dye for modified nylon 6.6 ‘Tactel Coloursafe’ / Soleimani-Gorgani Atasheh in COLORATION TECHNOLOGY, Vol. 127, N° 4 (2011)

[article]  inCOLORATION TECHNOLOGY > Vol. 127, N° 4 (2011) . - p. 227-234 Titre : Synthesis and evaluation of a novel blue cationic reactive dye for modified nylon 6.6 ‘Tactel Coloursafe’ Type de document : texte imprimé Auteurs : Soleimani-Gorgani Atasheh, Auteur ; John A. Taylor, Auteur Année de publication : 2011 Article en page(s) : p. 227-234 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Benzothiazoles Colorants azoïques Colorants cationiques Colorants réactifs Polyamide 66 Teinture -- Fibres textiles synthétiques Index. décimale : 667.3 Teinture et impression des tissus Résumé : A novel blue cationic reactive dye (dye 1) based on an azo benzothiazole derivative and possessing an acrylamido reactive group, was synthesised and evaluated on dyeing Coloursafe modified nylon 6.6 at optimum pH. Benzothiazole quaternary dye was chosen as a target as this is known to be very strong chromophically. Evaluation of the technical properties of dye 1 showed that it fixed efficiently to nylon under acidic dyeing conditions. As it was necessary to prove that fixation occurs via a covalent bond, the dyeing properties of a non-reactive cationic dye, (CI Basic Blue 41), on dyeing nylon 6.6 at optimum pH were evaluated. CI Basic Blue 41 was similar in structure to dye 1 and would be capable of forming an ion–ion bond with the fibre. Evaluation of the technical properties of dye 1 proved that, in all cases, its fixation efficiency and build-up properties were far better than that of CI Basic Blue 41. Note de contenu : EXPERIMENTAL : Preparation dyes - Determination of dye 1 hydrolysis - Dyeing - Colour strength (K/S) of dyes on fabric - Dye exhaustion - Dye fixation - Determination of effective agent content of dyes RESULTS AND DISCUSSION : Measurement of Mol In - Effect of pH on dyeing performance - Build-up of dye 1 and CI basic blue 41 on nylon 6.6 'Tactel coloursafe' - Hydrolysis of dye 1 in aqueous alkali - Wash fastness DOI : 10.1111/j.1478-4408.2011.00303.x Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11902 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
013185	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 3 / 3)