| Titre : |
The binding of TCMTB (busan 30L) to hide powder |
| Type de document : |
texte imprimé |
| Auteurs : |
W. M. Fowler, Auteur ; A. E. Russel, Auteur |
| Année de publication : |
1990 |
| Article en page(s) : |
p. 243-263 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The uptake of 2-(thiocyanomethylthio)benzothiazole (TCMTB) active ingredient from emulsion dispersion of Busan 30L on both limed and lightly chromed hide powder at treatment temperatures of 10°, 25° and 40°C has been investigated. Fungicide uptake was determined by difference measurements on the float at regular intervals during treatment.
At lower fungicide treatment concentration on both chromed and limed hide powder, binding tended to follow a typical mass-action-type binding isotherm with very little change with temperature between 13 and 40°C. At higher float concentrations on chrome hide powder an inflexion point was apparent beyond which uptakes showed a further marked increase with concentration. This inflexion point signified a change in binding characteristics,but was not as marked on limed hode powder indicating that the chrome present played a major role in promoting the different binding mechanism.
The binding isotherms observed were consistent with mass-action-controlled interactions occuring between collagen or chromed collagen or chromed collagen fibres and dispersed TCMTB in the aqueous emulsion treatments, encompassing the practical lower application range used in production. At higher treatment concentrations, progressive destabilisation of the emulsion occured, leading to surface precipitation of TCMTB/surfactant components onto the hide-powder fibres and a pronounced increase in uptake.
The results of the study provide further insight into the modes of interaction of TCMTB with the hide-powder-collagen matrix and the importance of the emulsion dispersion and its stability in determining uptake of fungicide by leather. |
| En ligne : |
https://drive.google.com/file/d/1e1u10HVBgUKW-dRPDEDWsbsbxnapo2iS/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8685 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXV (Année 1990) . - p. 243-263
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The binding of TCMTB (busan 30L) to hide powder in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXV (Année 1990)
