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Comparison of computer colour matching of water-based and solvent-based reverse micellar dyeing of cotton fibre / Alan Y. L. Tang in COLORATION TECHNOLOGY, Vol. 134, N° 4 (08/2018)
[article]
Titre : Comparison of computer colour matching of water-based and solvent-based reverse micellar dyeing of cotton fibre Type de document : texte imprimé Auteurs : Alan Y. L. Tang, Auteur ; Yanming Wang, Auteur ; Cheng Hao Lee ; Chi-Wai Kan Année de publication : 2018 Article en page(s) : p. 258-265 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants réactifs
CotonLe 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).
Etalonnage
Etudes comparatives
Heptane
Micelles
Réflectance
Solutions (chimie)
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : In this study, cotton fabrics were dyed with reactive dyes in conventional water‐based and solvent‐based reverse micellar dyeing systems. In solvent‐based dyeing, heptane replaced water as the medium. Three commercially available reactive dyes with the primary colours of red, blue and yellow were used. Dyeing with different dye concentrations was conducted to establish calibration dyeing databases for computer colour matching (CCM). Colours produced by mixing known concentrations of primary colours were used as standard samples for CCM. Different colour difference formulae were used for predicting dye concentrations in the standard samples from CCM. Results revealed that the predicted concentrations were statistically related to the known concentrations for both dyeing methods. This indicates that the solvent‐based reverse micellar dyeing method can achieve colour matching as good as the conventional water‐based dyeing system, and that a large amount of water can be saved. Note de contenu : - EXPERIMENTAL : Preparation of cotton fabric - Dyeing of cotton fabric in water to prepare the calibration curve - Dyeing of cotton fabric in the heptane-based reverse micellar dyeing system to prepare the calibration curve - Establishment of calibration curves - Prediction of dye recipe with different colour difference formulae
- RESULTS AND DISCUSSION : Reflectance values of the dyed samples - Calibration curves - CCMDOI : 10.1111/cote.12333 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12333 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30919
in COLORATION TECHNOLOGY > Vol. 134, N° 4 (08/2018) . - p. 258-265[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20089 - Périodique Bibliothèque principale Documentaires Disponible Non-polar medium enables efficient chrome tanning / Palanisamy Thanikaivelan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXII, N° 10 (10/2017)
[article]
Titre : Non-polar medium enables efficient chrome tanning Type de document : texte imprimé Auteurs : Palanisamy Thanikaivelan, Auteur ; Selvaraj Silambaransan, Auteur ; Rathinam Aravindhan, Auteur ; Jonnalagadda Raghava Rao, Auteur Année de publication : 2017 Article en page(s) : p. 338-346 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Heptane
Solvants écologiques
Tannage au chromeIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Converting raw hides and skins into leather through chrome tanning in water medium creates huge environmental burden by contaminating the precious water resource on the one hand and discharging more chromium on the other. Here, a non-polar green solvent, heptane, alternate to water has been evaluated for chrome tanning employing both pickle-based and pickle-less method. The preceding (pre-tanning) and succeeding (post-tanning) processes were water mediated for comparison. The results show that the color and other organoleptic properties of both wet blue and crust leathers are comparable to conventional leathers. The strength and structural properties of experimental crust leathers are comparable to that of control leathers. The main benefits in switching over to heptane medium are improved exhaustion of chromium during both pickle-based and pickle-less chrome tanning, better chromium distribution and recycling ability. The process also helps in reducing the chemical oxygen demand, biological oxygen demand and total solids levels in the composite liquor significantly. Note de contenu : - MATERIALS AND METHODS : Materials - Chrome tannign in heptane medium - Determination of shrinkage temperature (T) - Analysis of chrome tanned leathers - Analysis of leachable chromium - Analysis of spent chrome liquor - Composite liquor analysis - Scanning electron microscopic analysis - Analysis of crust leathers - Studies on the recycling of the spent heptane liquor
- RESULTS AND DISCUSSION : Assessment of the wet blue leather - Chromium exhaustion/distribution and shrinkage temperature analysis - Leaching analysis - Composite liquor analysis - Evaluation of crust leathers - Recycling studiesEn ligne : https://drive.google.com/file/d/17AkqVwa6vTDcrHuGjkmR8Q2Van8eJExc/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29248
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXII, N° 10 (10/2017) . - p. 338-346[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19286 - Périodique Bibliothèque principale Documentaires Disponible