Eco-friendly pretreatment of silk fabric for dyeing with Delonix regia extract / Padma Shree Vankar in COLORATION TECHNOLOGY, Vol. 125, N° 3 (2009)  

[article]  inCOLORATION TECHNOLOGY > Vol. 125, N° 3 (2009) . - p. 155-160 Titre : Eco-friendly pretreatment of silk fabric for dyeing with Delonix regia extract Type de document : texte imprimé Auteurs : Padma Shree Vankar, Auteur ; Rakhi Shanker, Auteur Année de publication : 2009 Article en page(s) : p. 155-160 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : The flowers of Delonix regia have been evaluated for the natural dyeing of silk using a biomordant and enzymes. This is an eco-friendly textile pretreatment that does not utilise metal mordanting. The aqueous extract obtained from the dried red flowers was used for the dyeing of silk fabrics. A bright reddish-brown hue colour was observed when 30% owf Delonix extract was used on the pretreated silk material. The silk fabric was treated with either an enzyme or biomordant. The resulting dyed fabric showed resistance to fading. Finally, all dyed specimens were tested for wash and light fastness properties, making Delonix a viable alternative to synthetic red dyes. Through desorption studies, the order of reactivity of enzymes towards dye uptake in the one-step process was found to be lipase > diasterase > protease–amylase = Pyrus(biomordant). For the two-step process, the order of reactivity of enzymes was found to be protease–amylase > lipase > Pyrus (biomordant) > diasterase. Overall, it can be concluded that, treatments, the two-step process was better in terms of larger colour yield values, fastness properties and both dye adherence ability. DOI : 10.1111/j.1478-4408.2009.00189.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2009.00189.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5918 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
011437	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Natural dyes for textiles / Padma Shree Vankar / Amsterdam [Nederland] : Elsevier (2017) 

Titre : Natural dyes for textiles : Sources, chemistry and applications Type de document : texte imprimé Auteurs : Padma Shree Vankar, Auteur Editeur : Amsterdam [Nederland] : Elsevier Année de publication : 2017 Autre Editeur : Cambridge [United Kingdom] : Woodhead Publishing Ltd Collection : The Textile Institute Book Series Importance : VIII-229 Présentation : ill. ISBN/ISSN/EAN : 978-0-08-101884-2 Note générale : Index - Bibliogr. Langues : Anglais (eng) Catégories : Chimie textile 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). Laine Soie et constituants Teinture -- Fibres textiles Index. décimale : 667.3 Teinture et impression des tissus Résumé : Natural Dyes for Textiles : Sources, Chemistry and Applications is an in-depth guide to natural dyes, offering complete and practical coverage of the whole dyeing process from source selection to post-treatments. The book identifies plants with high dye content that are viable for commercial use, and provides valuable quantitative information regarding extraction and fastness properties, to aid dye selection. The book presents newer natural dyes in detail, according to their suitability for cotton fabrics, silk fabrics, and wool yarn, before describing the application of each dye. Extraction of plant parts for isolation of colorants, chromatographic techniques for separation, spectroscopic analysis of the isolated colorants, structure elucidation, biomordanting, pretreatments, and post-treatments, are also covered. Prepared by an expert author with many years of experience in researching and writing on natural textile dyes, this book is an important resource for academic researchers, post-graduate students, textile manufacturers, technicians, dye practitioners, and those involved in textile dye research and development. Note de contenu : - 1A. Newer natural dyes for cotton - 1B. Description of the newer natural dye sources suitable for silk fabrics - 1C. Description of the newer natural dye sources suitable for wool yarn - 1D. Special case study: Dyeing of cotton, silk, and wool with natural dyes - 2. ISOLATION AND CHARACTERIZATION OF THE COLORANT MOLECULES FROM EACH DYE PLANT - 3. STRUCTURE-MORDANT INTERACTION, REPLACEMENT BY BIOMORDANTS AND ENZYMES - 4. DYEING APPLICATION OF NEWER NATURAL DYES ON COTTON SILK AND WOOK WITH FASTNESS PROPERTIES, CIE LAB VALUES AND SHADE CARD - 4A. Dyeing of cotton by different new natural dyeing sources - 4B. Dyeing application of newer natural dyes on silk with fastness properties, CIE lab values, and shade card - 4C. Dyeing application of newer natural dyes on wool with fastness properties, CIE lab values and shade card - 5. INNOVATIVE DYE EXTRACTION METHODS - 6. UNIQUE PRETREATMENTS AND POST-TREATMENTs FOR NATURAL DYEING Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37325

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Documents numériques

Natural dyes for textiles : Sources, chemistry and applications URL

---

1 (1 - 2 / 2)