Accueil
Détail de l'auteur
Auteur V. Diaz |
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la recherche
Effect of ultrasound on watery dissolutions of vegetable extracts used in leather tanning / Josep Maria Morera in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIII, N° 4 (04/2008)
[article]
Titre : Effect of ultrasound on watery dissolutions of vegetable extracts used in leather tanning Type de document : texte imprimé Auteurs : Josep Maria Morera, Auteur ; A. Shendryk, Auteur ; V. Diaz, Auteur ; Lluis Ollé, Auteur ; Anna Bacardit, Auteur ; Esther Bartoli, Auteur Année de publication : 2008 Article en page(s) : p. 151 - 157 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : This paper analyses the effect of ultrasound on the aqueous dissolutions of vegetable extracts. This effect has been compared with that of a drum, which is the type of reactor used in leather tanning nowadays. The results indicate that the studied effects have similarities and that there is the possibility of using ultrasound during leather tanning with vegetable extracts. This may result in improvements in the quality of the leathers obtained. En ligne : https://drive.google.com/file/d/1rm63A1Ii6nxEDotcUdVaO89fnK74EJcs/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2570
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CIII, N° 4 (04/2008) . - p. 151 - 157[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 010013 - Périodique Bibliothèque principale Documentaires Disponible Optimization of various parameters in vegetable tanning using ultrasound / Josep Maria Morera in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIII, N° 4 (04/2008)
[article]
Titre : Optimization of various parameters in vegetable tanning using ultrasound Type de document : texte imprimé Auteurs : Josep Maria Morera, Auteur ; V. Diaz, Auteur ; G. Fabregat, Auteur ; J. F. Del Rio, Auteur ; Anna Bacardit, Auteur ; Esther Bartoli, Auteur Année de publication : 2008 Article en page(s) : p. 158 - 161 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The influence of different variables has been determined in vegetable tanning when using ultrasound (US). US is used in a traditional tanning process in order to replace the mechanical effect of the drums. This prevents the damaging of the grain which results from the hitting of the hides against the pivots in the drum. However, it is necessary to optimize certain variables so that the use of US can be economically viable. The variables in this study were (a) the power applied (from 16.7 to 4.2 W/L), (b) the time devoted to the effect of US, and (c) the concentration of tanning liquor. These variables are of fundamental importance when attempting to determine the economic viability of the tanning system proposed here. The parameters that have been controlled during the tests were (a) the density of the float, (b) the absorption of the vegetable extract in the hide, and (c) the time devoted to tan-through. The tests provided positive results when using US with a power of 8.35 W/L and processing only for 5 hours. The quality of the grain in the pieces of leather obtained using US is higher than that of similar pieces of leather made using the drums. En ligne : https://drive.google.com/file/d/1HduodT_0ABKjkORRlUZo_NP443c0QY0S/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2571
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CIII, N° 4 (04/2008) . - p. 158 - 161[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 010013 - Périodique Bibliothèque principale Documentaires Disponible