| Titre : |
The recycling of silicofluoride and boric acid liquors for hide preservation |
| Type de document : |
texte imprimé |
| Auteurs : |
J. C. Barrett, Auteur ; I. B. Leach, Auteur ; M. R. Ascough, Auteur |
| Année de publication : |
1984 |
| Article en page(s) : |
p. 146-149 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Bain de trempe -- Recyclage
Borique, Acide
Cuirs et peaux -- Conservation
Fluorure de silicium
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Suspension drying is a long-established method of curing hides and skins still practised today in many parts of the world, but a major disadvantage is that adverse climatic conditions can cause major Tosses. For example, in West Africa during the wet season putrefaction of hides caused by delayed drying is extensive. Barrette reviewed bactericidal chemicals potentially suitably for treatment of hides and skins prior to drying to avoid this problem and selected methods were evaluated in field trials in the Gambia in 1981. The immersion of cattle hides in a saturated solution of either sodium silicofluoride (SSF) or boric acid for 60 min after flaying and fleshing prior to conventional suspension drying was found to give effective protection against putrefaction during drying periods of up to six days. No adverse effects on leather-making qualities of the raw stock could be attributed to the bactericidal pre-treatments.
A practical system for pre-treating hides with bactericides will benefit from recycling of dip liquors to achieve economy in chemical usage. This paper describes experiments carried out in the Gambia in 1982 to investigate the scope for recycling SSF and boric acid liquors for hide preservation. Experiments were also carried out to investigate the scope for reducing the period of immersion of hides while retaining effective preservation. |
| Note de contenu : |
- Raw material
- Preliminary experiments on reduced treatment time
- Experiments on receiving unreplenished bactericide liquors : Results with SSF - Results with boric acid
- Experiments on recycling replenished SSF liquors
- Investigation of the "exhaustion" of recycled SSF liquors
- Table 1 : Assessment of hide quality in unreplenished SSF liquor recycling experiments
- Table 2 : Assessment of hide quality in unreplenished boric acid liquor recycling experiments
- Table 3 : Assessment of hide quality in unreplenished boric acid liquor recycling experiments |
| En ligne : |
https://drive.google.com/file/d/1xqamOshukt7PNwdxPWvhdu4ixPXuqhni/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34151 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 68 (Année 1984) . - p. 146-149
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