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[article]
Titre : |
Performance and eco-impact of reverse processed hair sheep gloving leather |
Type de document : |
texte imprimé |
Auteurs : |
Subramani Saravanabhavan, Auteur ; Palanisamy Thanikaivelan, Auteur ; Jonnalagadda Raghava Rao, Auteur |
Année de publication : |
2008 |
Article en page(s) : |
p. 303-313 |
Note générale : |
Bibliogr. |
Langues : |
Américain (ame) |
Index. décimale : |
675 Technologie du cuir et de la fourrure |
Résumé : |
Leather processing, the world over, follows the pretanning, tanning, post-tanning and finishing sequence. It involves manyu process steps and huge pH variations thus discharges enormous amount of pollutants. A prudent analysis of the conventional leather process shows that the sequence follows do-undo logic. In this study, the conventional proccessing sequence has been reversed to reduce the number of process steps and pH variations thereby achieving resource and polution reductions. Hair sheepskins have been processed using both conventional and reverse processes for gloving application. Reverse process involves pretanning, post tanning, tanning and finishing sequence. The pH and charges of skin matrix after deliming are wisely utilized to apply post-tanning chemicals followed by chrome tanning salt the processed leathers have been analyzed for chromium content, shrinkage temperature, strength and bulk properties. A set of turn-key tests have been carried out to verify whether the reverse processedleathers meet military specifications. The performance of reverse processed glove leathers is shown tobe on par with conventionally processed leathers and meet the specifications predominantly. Especially, chrome content of reverse processed leathers is higher than control leather, which is corroborated through X-ray fluorescence analysis. The process enjoys significant reduction in COD and TS loads by 53 and 70%. Also, the process benefits from significant reductions in water, wastewater discharge, chemicals, time, power and cost compared to conventional process. |
En ligne : |
https://drive.google.com/file/d/1N6_bpTXaHI3bO3Nz8ElTo5Gtg5uX1Cw1/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2513 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CIII, N° 9 (09/2008) . - p. 303-313
[article]
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