Titre : |
Oxidative unhairing of leathers : Influence of several process parameters and environmental improvments |
Type de document : |
texte imprimé |
Auteurs : |
Josep Maria Morera, Auteur ; Esther Bartoli, Auteur ; M. Dolors Borras, Auteur ; Stefan Banaszak, Auteur |
Année de publication : |
2006 |
Article en page(s) : |
p. 347-354 |
Note générale : |
Bibliogr. |
Langues : |
Américain (ame) |
Index. décimale : |
675 Technologie du cuir et de la fourrure |
Résumé : |
The aim of this project was to develop a type of unhairing using hydrogen peroxide, commercial amine and enzyme products. This unhairing system, which was carried out on a pilot plant scale, enables hair recovery and recirculation of floats in order to save water. The effect of the amine and enzyme products on the properties of vegetable-tanned leather was studied. In addition, five more consecutive unhairing processes were carried out by recirculating the effluents and reusing them according to their composition. After analysing the floats, the results obtained were compared to those achieved by using a reductive unhairing process with hair recovery. The results showed a 65 percent saving of water and a 97 percent decrease in toxicity. These results were compared with the bibliographical values of a reductive unhairing with hair dissolution. |
En ligne : |
https://drive.google.com/file/d/19TBlxk1RnQplSfN6NIbvREAczgVA0w3C/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3972 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CI, N° 10 (10/2006) . - p. 347-354