| Titre : |
Current trends in leather science |
| Type de document : |
texte imprimé |
| Auteurs : |
Anthony D. Covington, Auteur ; William R. Wise, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
9 p. |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Chaulage
Chimie -- Essais et réactifs
Cuir -- Séchage
Cuir végétal
Cuirs et peaux -- Finition
Cuirs et peaux -- Séchage
Cuirs et peaux -- Teinture
Epilage
Produits de nourriture du cuir
Tannage
Tannage au chrome
Tannage minéralTannage dans lequel interviennent différents minéraux. Le plus répandu est le tannage aux sels de chrome, mais aussi à l’aluminium
Tannage végétal
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
In preparing the second edition of ‘Tanning Chemistry. The Science of Leather.’, the literature was updated and the content was revised and reviewed. Here, the new findings are presented and discussed.
Notable developments include the necessary rethinking of the mechanism of sulfide unhairing because of new understanding of the aqueous chemistry of sulfide species. Revision upwards of the value of the second pKa for sulfide species ionisation means that S2− cannot exist in an aqueous medium, so the unhairing species in hair burn reactions is HS−. Although the technology remains the same, this means the mechanisms of associated reactions such as immunisation must be revised.
Rawstock preservation has benefitted from studies of the potential role of materials from plants which accumulate salt, but which also contribute terpene compounds. There is also further discussion on the continuing issue of chromium (VI) in the leather industry.
The application to processing of new solvents, ionic liquids and deep eutectics, is the coming technology, which offers transforming options for new chemistries and products. Renewed interest in vegetable tanning and methods of wet white processing are current trends. Also, within the topic of reagent delivery is processing in a solid medium of plastic beads. |
| Note de contenu : |
- Preservation
- Unhairing
- Liming
- Chrome tanning
- Mineral tanning
- Vegetable tanning
- Other tannages
- Post tanning
- Dyeing
- Fatliquoring
- Reagent delivery
- Drying
- Finishing
Table 1 : Melting points of some ionic compounds |
| DOI : |
https://doi.org/10.1186/s42825-020-00041-0 |
| En ligne : |
https://link.springer.com/content/pdf/10.1186/s42825-020-00041-0.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37461 |
in JOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 2 (Année 2020) . - 9 p.
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Current trends in leather science in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 2 (Année 2020)
