[article]
| Titre : |
Practical considerations on the sirolime process |
| Type de document : |
texte imprimé |
| Auteurs : |
R. W. Cranston, Auteur ; M. H. Davis, Auteur ; J. G. Scroggie, Auteur |
| Année de publication : |
1986 |
| Article en page(s) : |
p. 50-55 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The sulphide-lime system for removing hair from hides still represents the most easily controllable and cost-efficient method available to a tanner despite the enormous amount of research which has been done in attempting to develop an alternative. Its major drawback today, however, is its severe environmental effect and it is this problem which has prompted the search for a non-polluting method.
A number of years ago, we adopted the approach that it would be more advantageous to develope a rapid hair-saving process which utilised, essentially, existing tannery equipment rather than an alternative hair destroying system. Ititially, we worked extensively with enzymes but were unable to find any with sufficient specificity to avoid collagen damage. That is not to say, however, that we have excluded the possibility of using enzymes, as developments in biotechnology may still be able to provide an enzyme of sufficient specificity.
The enzyme work enabled us to establish some important principles. Any hair-saving process would need to be a two-stage process. In the first stage, almost all of the hair (at least 90 %) is removed by a rapid chemical treatment. The small amount of redestroying stage, the conditions of which can be chosen to give the normal "liming action" on the hide. Finally there should be an efficient method for separating loosened hair from the hides.
Experiments with sulphide had been running concurrently with our enzyme work and eventually an approach using sulphide was developed which has become known as the SIROLIME process. |
| En ligne : |
https://drive.google.com/file/d/1e_O7PlEdffG3lSNq0zhuWcp9q6h9xH5X/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9207 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 70 (Année 1986) . - p. 50-55
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Practical considerations on the sirolime process in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 70 (Année 1986)
