| Titre : |
High exhaust chrome-aluminium combination tanning : Part 1. Optimization of tanning |
| Type de document : |
texte imprimé |
| Auteurs : |
Kalarical Janardhanan Sreeram, Auteur ; T. Ramasami, Auteur ; Balachandran Unni Nair, Auteur ; Chandra Babu Narasimhan Kannan, Auteur ; Jonnalagadda Raghava Rao, Auteur |
| Année de publication : |
2006 |
| Article en page(s) : |
p. 86-95 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Managing chromium in both liquid and solid wastes is the need of the hour. The use of an aluminium based syntan (Alutan), in tanning, helps in the increased uptake of chromium by the hide/skin during tanning. This method also forms a chrome saver approach wherein reduced amount of chromium is offered, thereby reducing the concentration of metal ion in the waste stream. The use of Alutan during tanning finally helps in the reduction of post tanning chemicals offer. A detailed investigation has been made to optimize the tanning system for a standard wet finishing process for both upper and nappa leathers. It has been established through this study on cow hides that a combination of 5% basic chromium sulfate (BCS) and 1.5% Alutan for upper leathers and 5.5% BCS and 1.0% Alutan for nappa leathers are ideal tanning systems. Chromium uptake is in the range of 84-94% with 472-1341 ppm of chromium in the spent tan liquor. The distribution of chromium in thicker cow sides is uniform and comparable to that of conventional tanned leathers even at reduced dosage. In spite of reduced offer of syntans and dyes, the performance of leathers is shown to be on par with leathers produced by conventional process through physical and hand evaluation. The Alutan-BCS combination tanning forms a viable eco-benign chrome saver approach. |
| En ligne : |
https://drive.google.com/file/d/1IFphn7RZtiyj3yAGqiuZg46Ps8KtI5gR/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4019 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CI, N° 3 (03/2006) . - p. 86-95
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High exhaust chrome-aluminium combination tanning : Part 1. Optimization of tanning in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 3 (03/2006)
