Combined organic tanning based on mimosa and oxazolidine : development of a semi-industrial scale process for high-quality bovine upper leather / A. d'aquino in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 88, N° 2 (03-04/2004)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 88, N° 2 (03-04/2004) . - p. 47-55 Titre : Combined organic tanning based on mimosa and oxazolidine : development of a semi-industrial scale process for high-quality bovine upper leather Type de document : texte imprimé Auteurs : A. d'aquino, Auteur ; N. Barbani, Auteur ; G. d'Elia, Auteur ; D. Lupinacci, Auteur ; Biagio Naviglio, Auteur ; Maurizia Seggiani, Auteur Année de publication : 2004 Article en page(s) : p. 47-55 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Cuirs et peaux de bovins Mimosa et constituants Oxazolidine Réticulants Tannage combiné Le tannage combiné se dit des tannages qui allient deux familles ou genre de tannage pour obtenir un résultat additionnant les qualités complémentaires des tannins mis en Å“uvre par exemple Chrome-Végétal ou Chrome-Synthétique Tannage organique Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : In this study we present an industrial-scaled tanning process intended to replace chrome tanning in the production of high quality bovine shoe upper leathers using a combined tannage based on a mimosa and oxazolidine as crosslinking agent. This paper reports the best recipe developed and the properties of the leather obtained. The various test results and scanning electron microscopy (SEM) observations which were used as investigative methods to follow the tanning process steps and to better understand the cross-linking mechanisms, are detailed together with the characterisation of the effluents. The leather obtained is characterised by a good hydrothermal stability coupled with good physical and technical properties which allow it to easily comply with the standards required for high quality chromium-tanned bovine upper leather. The results obtained suggest that this tannage is a promising alternative to traditional chrome tanning. Note de contenu : - Interactions between the collagen structure, mimosa, and oxazolidine - Laboratory scale investigation - Semi-industrial scale investigation and properties of the crust leather - SEM analysis - Characterization of the exhaust bath of the mimosaoxazolidine tannage - Table 1 : Pre-tanning and tanning agents used - Table 2 : Steps of fatliquoring/dyeing process (offers: wt.% based on tanned weight) - Table 3 : Steps of the Mimosa-Oxazolidine tanning process - Table 4 : Steps of the Oxazolidine-Mimosa tanning process - Table 5 : Pollutants in the exhaust bath of the mimosa-oxazolidine tannage compared with a typical chromium exhaust bath En ligne : https://drive.google.com/file/d/18RDaXSoVzI-3FZsq97w_hp0jR9_xLdOu/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39641 [article]

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Tara-aluminum tanning as an alternative to traditional chrome tanning : Development of a pilot-scale process for high-quality bovine upper leather / Sandra Vitolo in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVIII, N° 4 (04/2003)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCVIII, N° 4 (04/2003) . - p. 123-131 Titre : Tara-aluminum tanning as an alternative to traditional chrome tanning : Development of a pilot-scale process for high-quality bovine upper leather Type de document : texte imprimé Auteurs : Sandra Vitolo, Auteur ; M. Tomaselli, Auteur ; Biagio Naviglio, Auteur ; N. Barbani, Auteur ; Maurizia Seggiani, Auteur Année de publication : 2003 Article en page(s) : p. 123-131 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : In this study, an industrial-scale tanning process to replace chrome tanning in the production of high quality bovine shoe upper leathers, based on a multi-step vegetable-aluminum tannage, is presented. Tara extract was used as vegetable tanning agent in order to obtain a wet-white tanned leather; a pretannage with glutaraldeyde or syntan was introduced to improve penetration. This paper reports the best recipes developed, the properties of the leather obtained and the results of differential scanning calorimetry (DSC), thermogravimetric analysis (TG and DTG), and scanning electron microscopy (SEM) used as investigation methods to follow the tanning process steps and better understand the cross-linking mechanisms. En ligne : https://drive.google.com/file/d/16YNiwkXMBbwPpXr3vuYQySi2R2QSTHt1/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4114 [article]

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