Digital and conventional printing and dyeing with the natural dye annatto: optimisation and standardisation processes to meet future demands / Georgios Savvidis in COLORATION TECHNOLOGY, Vol. 129, N° 1 (02/2013)  

[article]  inCOLORATION TECHNOLOGY > Vol. 129, N° 1 (02/2013) . - p. 55-63 Titre : Digital and conventional printing and dyeing with the natural dye annatto: optimisation and standardisation processes to meet future demands Type de document : texte imprimé Auteurs : Georgios Savvidis, Auteur ; Maria Zarkogianni, Auteur ; Evangelos Karanikas, Auteur ; Nikolaos Lazaridis, Auteur ; Nikolaos F. Nikolaidis, Auteur ; Eforia G. Tsatsaroni, Auteur Année de publication : 2013 Article en page(s) : p. 55-63 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alun Colorants végétaux 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). Impression numérique Impression sur étoffes Mordançage (teinture) Rhéologie Rocou Sérigraphie Teinture -- Fibres textiles Index. décimale : 667.3 Teinture et impression des tissus Résumé : The plant colorant annatto was investigated to determine its potential use as a natural dye for conventional and novel textile applications. Alum was selected as a mordant. Different techniques of mordanting and a broad set of variations in the dyeing recipes were applied to achieve optimisation and an improvement in colour fastness properties. Quality control of all dyeings was performed using standard fastness tests and colour measurements. Printing of cotton fabrics was also achieved with annatto using the flatbed screen-printing technique. Measurement of the rheological and physical properties of the annatto printing paste confirmed its stability and suitability for conventional printing. Fastness properties of the conventionally printed annatto fabric were also measured. A novel water-based digital printing ink using annatto was prepared and applied to cotton fabric using a digital printing application. The physical properties of the annatto ink-jet ink were also measured. Wash, light and rub fastness properties of the annatto digitally printed fabric were determined and compared with those of conventional printing methods. The results were promising for annatto as a natural colorant, which possibly paves the way for the development of a new range of natural environmentally friendly dyes. Note de contenu : - EXPERIMENTAL : Materials - Apparatus - Solubility test of the annatto sample - Mordanting - Dyeing - Printing - Colour measurement - Fastness determination - Viscosity, conductivity, surface tension and pH measurement - RESULTS AND DISCUSSION : Dyeing - Conventional printing - Ink-jet printing DOI : 10.1111/cote.12004 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12004/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17187 [article]

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