Titre : |
The ecological challenge of producing leather |
Type de document : |
texte imprimé |
Auteurs : |
Alois Püntener, Auteur |
Année de publication : |
1995 |
Article en page(s) : |
p. 206-219 |
Langues : |
Américain (ame) |
Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
Résumé : |
The tanner's responsibility for active environmental protection is being assigned more and more importance in today's society. The reduction of pollution in tannery waste is being tackled on three fronts. Firstly, tanneries are optimizing and reducing their overall chemical consumption and improving waste-water purification. Secondly, tanneries are more efficient in their use of chrome, and are selectively employing non-chrome procedures. Lastly, recycling of leather production waste is now being more actively promoted. This paper will present a simple environmental balance scheme and show a new tanning system which supplements existing tanning procedures. This innovative approach is to pickel the skins with an organic polymeric sulfonic acid without adding salt in the float. It is then pretanned with a penetrating glutaraldehyde formulation or a suitable syntan, forming a stabilized wet white. The influence on the subsequent wet-end processing as well as the flexibility to produce different leather is described. The practical experiences with this system will be discussed and the possiblities of waste recycling, reuse and other benefits will be shown. |
Note de contenu : |
- COD and salt in the beamhouse
- Salt-free pickling
- Chrome tanning effluent
- Chrome tanning
- Chrome tanning solid waste
- Alternative leather manufacturing process
- Syntan wet white
- Pretanning with glutaraldehyde
- Chrome-free leather based on glutaraldehyde
- Wet white retanned with chrome |
En ligne : |
https://drive.google.com/file/d/13AQQxLOkt7h3q93575aQoUaC2EYivUUy/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7938 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXX, N° 7 (07/1995) . - p. 206-219