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Fe(III)-Cr(III) combination tannage for the production of soft leathers / R. Karthikeyan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CII, N° 12 (12/2007)
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Titre : Fe(III)-Cr(III) combination tannage for the production of soft leathers Type de document : texte imprimé Auteurs : R. Karthikeyan, Auteur ; R. Ramesh, Auteur ; R. Usha, Auteur ; B. Ramanaiah, Auteur ; Chandra Babu Narasimhan Kannan, Auteur Année de publication : 2007 Article en page(s) : p. 383-392 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : There has been a constant search for safer tanning methods for use in leather processing. Due to their similarity in aqueous chemistry, Fe(III) salts are often considered potential alternatives for Cr(III) tanning salts. But Fe(III) tanning methods have certain limitations, which have come in the way of their use in the leather industry. One of the main problems is that iron tanned leathers are less amenable to the production of soft leathers such as garment and gloving leather. In the present study, an attempt has been made to overcome the problems associated with iron tanning for the production of goat suede and sheep nappa garment leathers. A judicious combination with chromium has been attempted and a tanning system that affords good quality leathers at the same time helps in restricting the amount of chromium and iron in the spent liquor to less than 100 mg/L has been standardized. The scanning electron microscopic analysis was carried out on the tanned leathers to study the effect of the new system on the structural characteristics of leathers produced. The strength properties and the color characteristics of the tanned leathers were also analyzed and reported. En ligne : https://drive.google.com/file/d/1w6F9Lp-M7mj7o1RzRGuxXlwasp_mFe_e/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3315
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