[article]
| Titre : |
A new approach to less-salt preservation of raw skin/hide |
| Type de document : |
texte imprimé |
| Auteurs : |
James Kanagaraj, Auteur ; Chandra Babu Narasimhan Kannan, Auteur ; S. Sadulla, Auteur ; G. Suseela Rajkumar, Auteur ; V. Visalakshi, Auteur ; N. Chandrakumar, Auteur |
| Année de publication : |
2000 |
| Article en page(s) : |
p. 368-374 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Salt curing systems, despite their cost and ease advantages, suffer heavily on environmental counts. The ill effects of the system need no emphasis. The deteriorating effect of electrolytes discharged by the use of salt by the tanning industry on the quality of soil and ground water is realised now more than ever before. The electrolytes, in the form of chloride and sulphate, form the largest component of most tannery effluents and they are the most difficult to treat at the end of the pipe. The source of the electrolytes is mainly from salt curing methods currently followed. The objective of this paper is to propose a suitable technology for the preservation of raw skin/hide that is an alternative to the salt curing method so as to combat the pollution problem arising out of salt. The present work is aimed at developing a less-salt curing method. The entire work is based on the fact that salt curing depends on dehydration of the stock to less than 30% water content in addition to exploiting the bacteriostatic properties of salt. In the present investigation, the preservation effect is achieved by using a combination of silica gel - environmental friendlier and easy-to-treat powerful dehydrating agent and 5% salt with or without 0.1% of p-chloro meta cresol (PCMC). The efficacy of the method was assessed by various parameters and tools such as moisture content, total extractable nitrogen, bacterial count and pollution load generated in leather processing. The results indicate that the method was as efficient as conventional salt curing and did not pose any problem in soaking or in the leather manufacturing process. The quality of the leather obtained was on a par with that obtained from conventionally salt cured stock. Thus the method appears to be viable in combating the problems of chloride and Total Dissolved Solids (TDS) and may be an effective alternative to conventional salt curing . |
| En ligne : |
https://drive.google.com/file/d/1sQj1QjAuDd6fG82BabL5cITpJm3FO468/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4404 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCV, N° 10 (12/2000) . - p. 368-374
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