| Titre : |
Phospholipid bilayers as vehicles of an anthraquinone disperse dye in leather dyeing |
| Type de document : |
texte imprimé |
| Auteurs : |
A. de La Maza, Auteur ; J. L. Parra, Auteur ; J. Cot, Auteur ; Agusti Marsal, Auteur |
| Année de publication : |
1994 |
| Article en page(s) : |
p. 123-131 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Studies are described on the use multilamellar lipid vesicles (MLV) as carriers of disperse dyes in the dyeing of tanned leather. We investigated liposomes made up of egg phosphatidylcholine containing the anthraquinonic disperse dye Oracetblau2R, (C.I. Disperse Violet 1) at different phospho-lipid/dye concentrations. The physical stability of these systems was assessed by measuring the mean vesicle size distribution of lipid vesicle suspensions after preparation and during the dyeing process. Kinetic aspects involving dye absorption on tanned leather by means of MLV liposomes at different dye/lipid ratios were also investigated. This process leads to controlled dye exhaustion on leather, directly dependent on the relationship between the dye and lipid components, with a clear improvement in the dispersing efficiency of these systems as compared with the use of conventional dispersing agents for this dye. The optimum dye exhaustion was obtained for the dye/phospholipid concentrations 0.53 mM respectively with an improved dye distribution on the leather surface. These relative compositions corresponded to the weight ratios of both components at which these systems reached the maximum encapsulation efficiency. |
| En ligne : |
https://drive.google.com/file/d/17uhRHIOM3Lyqdesk7zRpDQ-wBYuf13Bh/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8073 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXIX, N° 5 (05/1994) . - p. 123-131
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