A route from olive oil production to natural dyeing : valorisation of prina (crude olive cake) as a novel dye source / Özlenen Erdem Ismal in COLORATION TECHNOLOGY, Vol. 130, N° 2 (04/2014)  

[article]  inCOLORATION TECHNOLOGY > Vol. 130, N° 2 (04/2014) . - p. 147-153 Titre : A route from olive oil production to natural dyeing : valorisation of prina (crude olive cake) as a novel dye source Type de document : texte imprimé Auteurs : Özlenen Erdem Ismal, Auteur Année de publication : 2014 Article en page(s) : p. 147-153 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Biomasse Déchets -- Valorisation Déchets industriels -- Recyclage Déchets végétaux -- Recyclage Extraction (chimie) Laine Mordançage (teinture) Olive et constituants Produits naturels Sels métalliques Sulfate de fer Teinture -- Fibres textiles Index. décimale : 667.3 Teinture et impression des tissus Résumé : An attempt has been made to valorise an agroindustrial solid waste in natural textile dyeing as a novel dye source. The dyeing and fastness properties of prina (crude olive cake/pomace) extract were evaluated to fill the gap in this field. This very cheap biomass was utilised (80 g/l) by applying chemical solvent-free aqueous extraction to dye wool fabric with only small amounts (0.2, 0.4, 0.8, and 1.6 g/l) of metallic mordants, namely alum, iron(II) sulfate, copper(II) sulfate, stannous chloride, and potassium dichromate, and avoiding the use of alkali, acid, chemicals, and auxiliaries in dyeing and washing processes. Colour shades of beige, cream, sandy, apricot, straw, cumin, mustard, olive, and khaki were obtained. Significant differences in colour strength and CIELab coordinates were observed, depending on mordant type and mordanting method. Copper(II) sulfate and iron(II) sulfate ensured the most significant colour changes and nuances, the darkest colours, and the best light fastness values. Prina extract itself (without mordant) has a light fastness of 3 (fair) and excellent wash fastness of 4–5, both for colour change and bleeding. Irrespective of the concentration and mordanting method, alum, stannous chloride, and potassium dichromate did not generate a light fastness improvement compared with the control sample. Although good light and wash fastness values have been achieved without mordants, it is necessary to use them to widen the colour gamut and to obtain increased colour strength. Note de contenu : - EXPERIMENTAL : Extraction of the waste - Mordanting - Dyeing - Testing - RESULTS AND DISCUSSION : Colour measurements - The effect of mordant type - The effect of mordant concentration - The effect of mordant method - Light fastness evaluation - Wash fastness evaluation - Closing remarks DOI : 10.1111/cote.12068 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12068 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20871 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
16129	-	Périodique	Bibliothèque principale	Documentaires	Disponible

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