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An analysis of the factors influencing unlevelness of a direct dye on a pilot-scale jet dyeing machine / Martin Ferus-Comelo in COLORATION TECHNOLOGY, Vol. 124, N° 2 (2008)
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Titre : An analysis of the factors influencing unlevelness of a direct dye on a pilot-scale jet dyeing machine Type de document : texte imprimé Auteurs : Martin Ferus-Comelo, Auteur Année de publication : 2009 Article en page(s) : p. 100-105 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : The investigation used a pilot-scale jet dyeing machine to examine the relationship between the dye exhaustion rate per contact and dye unlevelness on the fabric. It was found that a commercially acceptable degree of unlevelness could be obtained for a direct dye on pure cotton fabric as long as the exhaustion rate did not exceed 1.0% per contact, independent of the dye amount used. Bath contacts and fabric contacts influenced unlevelness in equal manner. Non-ionic surfactants, which had been selected so as not to influence the dye exhaustion rate or its equilibrium uptake, appeared to have little or no influence on unlevelness. Control of the dye uptake by electrolyte addition proved to be a more efficient dyeing strategy than controlling it by dye addition, as unlevelness in the first case was much lower at the same exhaustion rate. DOI : 10.1111/j.1478-4408.2008.00128.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2008.00128.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3149
in COLORATION TECHNOLOGY > Vol. 124, N° 2 (2008) . - p. 100-105[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010962 - Périodique Bibliothèque principale Documentaires Disponible An analysis of the substantivity of hydrolysed reactive dyes and its implication for rinsing processes / Martin Ferus-Comelo in COLORATION TECHNOLOGY, Vol. 129, N° 1 (02/2013)
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Titre : An analysis of the substantivity of hydrolysed reactive dyes and its implication for rinsing processes Type de document : texte imprimé Auteurs : Martin Ferus-Comelo, Auteur Année de publication : 2013 Article en page(s) : p. 24-31 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants réactifs
Electrolytes
Hydrolyse
Rinçage
Sulfatoéthylsulfone
Teinture -- Fibres textiles
Textiles et tissusIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Substantivity plays a key role in dyeing processes, for dye exhaustion and fixation as well as for dye removal during rinsing. The latter is especially relevant for reactive dyes when the hydrolysed dye has to be removed from the fibre. The substantivity of the hydrolysed form of 46 commercially important reactive dyes was analysed at two temperatures for a wide range of dye amounts, pH values and electrolyte concentrations. The results showed that substantivity was highly dye-specific and varied, for each variable analysed, almost within the entire theoretically possible range of values. Substantivity values correlated best with the number of sulphatoethylsulphone groups in the dye molecule and dye solubility in the presence of sodium chloride. Sensitivity to electrolyte, pH, dye amount and temperature broadly correlated with each other, implying that a reduction in electrolyte concentration and an increase in pH and temperature are more beneficial in the removal of highly substantive reactive dyes. Some dyes remained highly substantive even at 90 °C, indicating that dye removal in industrial processes, too, would be difficult. For dyes with little substantivity, however, wash baths at the boil do not appear to be necessary, neither is the significant removal of electrolyte before rinsing at elevated temperature. Note de contenu : - Theoretical
- RESULTS AND DISCUSSION : Influence of electrolyte concentration - Influence of dye amount - Influence of temperatureDOI : 10.1111/j.1478-4408.2012.00405.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2012.00405.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17183
in COLORATION TECHNOLOGY > Vol. 129, N° 1 (02/2013) . - p. 24-31[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14552 - Périodique Bibliothèque principale Documentaires Disponible Dye demand/supply ratio as a predictor for the unlevelness of disperse-dyed polyester / Martin Ferus-Comelo in COLORATION TECHNOLOGY, Vol. 125, N° 6 (2009)
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Titre : Dye demand/supply ratio as a predictor for the unlevelness of disperse-dyed polyester Type de document : texte imprimé Auteurs : Martin Ferus-Comelo, Auteur Année de publication : 2010 Article en page(s) : p. 352-356 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : The ratio of the demand for dye by the fibre and the supply of dye by the dyebath is a useful indicator to predict unlevelness in the exhaust dyeing of polyester with disperse dyes, provided that dispersion breakage is small. The ratio can be calculated from the dye exhaustion curve, the dye solubility and the flow rate in the machine. The findings suggest that unlevelness can be successfully controlled by ensuring that dye demand never exceeds dye supply at any moment during the dyeing process. DOI : 10.1111/j.1478-4408.2009.00217.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2009.00217.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7625
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Code-barres Cote Support Localisation Section Disponibilité 011838 - Périodique Bibliothèque principale Documentaires Disponible A new method to measure the solubility of disperse dyes in water at high temperature / Martin Ferus-Comelo in COLORATION TECHNOLOGY, Vol. 131, N° 4 (08/2015)
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Titre : A new method to measure the solubility of disperse dyes in water at high temperature Type de document : texte imprimé Auteurs : Martin Ferus-Comelo, Auteur Année de publication : 2015 Article en page(s) : p. 269-271 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Solubilité
Colorants dispersésCatégorie de colorants très peu solubles dans l'eau, utilisés à l'origine comme colorants pour l'acétate, et qui généralement sont appliqués sous forme de suspensions aqueuses de faible concentration.Les colorants dispersés sont largement utilisés dans la teinture de la plupart des fibres manufacturées, surtout le polyester.
Eau
Hautes températures
MesureIndex. décimale : 667.3 Teinture et impression des tissus Résumé : This feature article describes a promising technique that can shed new light on the behaviour of one of the most commercially important classes of textile colourant. Disperse dyes are the only industrially significant means of exhaustion dyeing polyester, the highest-volume synthetic textile material. Successful coloration depends upon disperse dye solubility. However, accurate measurement of this parameter at typical operating conditions is not an easy feat. In addition, numerous previous studios examining solubility have net factored in strong influences that will affect real-world disperse dye formulations. These aspects include physical form and the presence of additives. The methodology reported in this Feature article addresses such Shortcomings. It is capable of providing insights into the performance of marketed products under the exact conditions of their application, which has hitherto not been possible. This novel approach allow technologists to compare the impact of subtle differences in variables such as colorant particle size distribution, impurity profile, and dispersant concentration an solubility. In doing so, it could facilitate the design of better-performing and more cost-effective disperse due systems. DOI : 10.1111/cote.12153 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12153 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24425
in COLORATION TECHNOLOGY > Vol. 131, N° 4 (08/2015) . - p. 269-271[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17353 - Périodique Bibliothèque principale Documentaires Disponible