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Everything you wanted to know about collagen models - But were too afraid to ask ! / David Rabinovitch in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 8 (08/2011)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVI, N° 8 (08/2011) . - p. 242-254 Titre : Everything you wanted to know about collagen models - But were too afraid to ask ! Type de document : texte imprimé Auteurs : David Rabinovitch, Auteur Année de publication : 2011 Article en page(s) : p. 242-254 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Collagène Cuirs et peaux Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Collagen is a wonderfully complex starting material making leather, which wa are now only beginning to understand ! Practical tannery recipes arose out of the craftsmanship developed by multiple successive generations of artisan tanners that obtained, by trial and error, the rules of thumb that eventually converted into a technical folklore. Leather chemists then tried to interpret this technology according to the scientific theories of the day, whereas tanners retained the technology that seemed to work best. Although colloidal chemistry has developed tremendously in the last century, some of its principles are not any longer agreable to the leather sector in general, and are regarded with great mistrust. Some of these colloidal concepts can be very useful if properly applied and can be used to produce better leather in better ways ; such then should be the ultimate goal of any working chemical model employed by tanners to be guided in the actual processing of leather. Note de contenu : - Micelle structures - The chemical model - Actual preliminary trials for increasing chrome tannage efficiency. - Is cross-linkage involved in tannery processing ? What types of cross-linking ? - Several relevant chemical structural linkages that can apply to collagen/leather. - Saline-links do also affect many of the many-properties of leather. - The thermodynamic stabilizine saline-bridging within the various hierarchical dimensional structures of collagen can be describes. En ligne : https://drive.google.com/file/d/15Twvm5UbGA0_EsNB-_3C2888JWDPe8BG/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11883 [article]

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Nanotechnologies for leather manufacturing : a review / Chen Yi in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 8 (08/2011)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVI, N° 8 (08/2011) . - p. 260-273 Titre : Nanotechnologies for leather manufacturing : a review Type de document : texte imprimé Auteurs : Chen Yi, Auteur ; Haojun Fan, Auteur ; Bi Shi, Auteur Année de publication : 2011 Article en page(s) : p. 260-273 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Cuirs et peaux Cuirs et peaux -- Finition Eaux usées -- Epuration Matériaux hybrides Nanoparticules -- Toxicologie Nanotechnologie Tannage Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Recently, increasing interests have been directed towards incorporating nanotechnologies into leather manufacturing, which offer cost-effective improvements in leather performances, as well as enabling the industry to meet stricter legislation regarding environmental safety. In order to guide the leather technologists and chemists worlwide, this article reviews state of the art related to existing nanotechnologies in leather manufacturing processes, including tanning, finishing and effluent treatment, over the past decade. The emphasis is placed on the mechanism by which nanotechnologies improve conventional processes, impressive performances of the resultant leather and possible obstacles that cloud technical development in this field. In the end, potential health and environment risks associated with the incorporation of nanotechnologies, which are particularly important for daily necessities such as leather but have been basically overlooked by many researchers involved, are also addressed. Note de contenu : - Nano tannage - Finishing with polymer nanocomposites - Effluent treatment by nanotechnology - Potential risks of nanotechnology En ligne : https://drive.google.com/file/d/1gzyXs9S9i5evbGhpDey44xchwwVQB548/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11884 [article]

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