| Titre : |
Biomordanting willow bark dye on cellulosic materials |
| Type de document : |
texte imprimé |
| Auteurs : |
Tia Lohtander, Auteur ; Suvi Arola, Auteur ; Päivi Laaksonen, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 4-14 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Adsorption
Analyse spectrale
CelluloseLa cellulose est un glucide constitué d'une chaîne linéaire de molécules de D-Glucose (entre 200 et 14 000) et principal constituant des végétaux et en particulier de la paroi de leurs cellules.
Chromatographie en phase liquide à hautes performances
Colorants -- Absorption
Colorants -- Adsorption
Colorants végétaux
Ecorces
Etalonnage
Extraction (chimie)
Mordançage (teinture)
Saules et constituants
Teinture
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
A semi-quantitative study of willow bark dye adsorption on two different cellulose materials using biomordants was carried out. The studied celluloses were microcrystalline cellulose (MCC) AaltoCell and regenerated Ioncell-F (IC) fibres. The dye was a hot water extract of willow bark and the adsorption to cellulose was carried out using carboxylic acid-containing biomordants, namely, oxalic acid, citric acid and tannic acid. Alum was employed as the reference mordant. A semi-quantitative estimation of the dye uptake was conducted using high-performance liquid chromatography equipped with a diode array detector and also by visual inspection, as well as an evaluation of the coloration using CIELab parameters. The mechanism of the dye adsorption on the cellulose surfaces was studied via Fourier Transform–infrared spectroscopy. According to the results, MCC had a higher affinity for polyphenolic dye than the regenerated cellulose fibres. Dye uptake on MCC was 50%-80% and 44%-57% on IC. For MCC, the biomordants improved the dye uptake more effectively than the control mordant, alum, whereas for IC the biomordants were less effective than alum. |
| Note de contenu : |
- EXPERIMENTAL : Cellulose materials - Dye materials and chemicals - Dye extraction - Dyeing of cellulosic materials - Preparation of HPLC samples - Spectrophotometric measurements - HPLC-DAD-MS analysis - Calibration curves - Calculation of dye adsorption
- RESULTS AND DISCUSSION : Spectrophotometric characterisation of WBE - Composition of the WBE solutions - Dyeing of cellulosic materials - Dye adsorption efficiency |
| DOI : |
https://doi.org/10.1111/cote.12442 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12442 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33695 |
in COLORATION TECHNOLOGY > Vol. 136, N° 1 (02/2020) . - p. 4-14
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