| Titre : |
Eco-friendly dyeing of cotton using waste-derived natural dyes and mordants |
| Type de document : |
texte imprimé |
| Auteurs : |
Faiza Nazir, Auteur ; Amna Siddique, Auteur ; Ahsan Nazir, Auteur ; Sonia Javed, Auteur ; Tanveer Hussain, Auteur ; Sharjeel Abid, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 684-692 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Biomatériaux
Caractérisation
Colorants végétaux
Colorimétrie
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).
Déchets végétaux -- Recyclage
Extraction (chimie)
Mordants (chimie)
Photostabilité
Solidité de la couleur
Teinture -- Fibres textiles
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
Because of the environmental burden of synthetic dyes, there has been a revival in practising natural dyeing globally. Natural dyeing uses metallic mordants for improving the dye's fastness properties. However, metallic mordants are also toxic. Herein, both the dyes and mordants were extracted from plant waste using water as a green solvent. The extracted dyes were then applied to the cotton fabric using a natural mordant. The dyed fabric samples were characterised for colour yield, fastness properties, ultraviolet protection and antibacterial activity. For the intended purpose, the wastes of sugarcane bagasse, wheat bran and rice husk were used for dye and mordant extraction. It was found that by increasing the extraction temperature from 30 to 60°C, the dye yield increased. From the K/S values, it was observed that premordanting gave better colour strength than post-mordanting or meta-mordanting. The overall ratings for washing and crocking were 3-4 and 4-5, respectively. No significant antibacterial activity was observed in the dyed samples. However, excellent ultraviolet protection was observed. |
| Note de contenu : |
- MATERIALS AND METHODS : Sample collection for colour extraction - Extraction of colourant - Percentage of dye extract - Extraction of natural mordant - Dyeing of fabric
- CHARACTERISATION : Measurement of colour strength - Washing fastness - Crocking fastness - Light fastness - Ultraviolet protection - Antibacterial activity
- RESULTS AND DISCUSSION : Percentage yield - Shades obtained on dyed fabric - Colour strength analysis - Fastness properties
- Table 1 : Percentage yield of dye extracts at 30 and 60°C
- Table 2 : K/S value comparison of dyed samples
- Table 3 : Fastness attributes of the dyed samples
- Table 4 : Ultraviolet protection factor (UPF) of dyed fabrics |
| DOI : |
https://doi.org/10.1111/cote.12629 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12629 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38381 |
in COLORATION TECHNOLOGY > Vol. 138, N° 6 (12/2022) . - p. 684-692
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