| Titre : |
Dyeing of cotton with the natural dye extracted from waste leaves of green tea (Camllia sinensis var. assamica) |
| Type de document : |
texte imprimé |
| Auteurs : |
Sukemi, Auteur ; Kornkanya Pratumyot, Auteur ; Choladda Srisuwannaket, Auteur ; Nakorn Niamnont, Auteur ; Withawat Mingvanish, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 121-126 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Colorants végétaux
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).
Teinture -- Fibres textiles
Thé vert et constituants
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
Due to an increase in the production of green tea, the amount of leaf waste has increased enormously, causing serious environmental problems. With regard to environmental awareness, the possibility of reusing the waste leaves of green tea as a low‐cost and abundantly available source of natural dye for dyeing cotton fibres was investigated. Natural dye powder from the waste leaves of green tea (NDPT) was successfully applied to dye cotton fibres without mordant by batch experiments. NDPT was obtained as a dark brown powder with a yield of 2.7 ± 0.5% w/w from dried waste leaves of green tea. The optimal conditions for dyeing NDPT onto cotton fibres were: pH of dye solution, 3 ; material to liquor ratio, 100:1 ; dyeing time, 180 min ; concentration of dye solution, 3.0 mg/ml ; and dyeing temperature, 100 °C. The colour of cotton fibres dyed with NDPT was observed to be dark brown. The adsorption data of NDPT on cotton fibres was best fitted with a Langmuir adsorption isotherm model with a correlation coefficient (R2) of 0.997. It is clear that there is a strong possibility of reusing the waste leaves of green tea as a low‐cost and abundantly available source of natural dye for dyeing cotton fibres. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Preparation of natural dye powder - Preparation of solutions of natural dye powder from the waste leaves of green tea - Phytochemical screening for natural dye powder from the waste leaves of green tea - Preparation of cotton fibres for dyeing with NDPT - General procedure for dyeing cotton fibres - The adsorption isotherm of cotton fibres dyed with NDPT
- RESULTS AND DISCUSSION : Characteristics and phytochemical screening of NDPT - Optimal conditions for dyeing cotton fibres with NDPT - Absorption isotherm |
| DOI : |
10.1111/cote.12381 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12381 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32325 |
in COLORATION TECHNOLOGY > Vol. 135, N° 2 (04/2019) . - p. 121-126
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