| Titre : |
An improved method for the extraction of fatliquor from leather |
| Type de document : |
texte imprimé |
| Auteurs : |
D. H. Stamp, Auteur |
| Année de publication : |
1974 |
| Article en page(s) : |
p. 290- 300 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Cuirs et peaux
Extraction (chimie)
Huiles et graisses
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The official ALCA method for fatliquor extraction from leather was compared to the Küntzel modification of the Koppenhoeffer and Retzsch method and to a method using a mixed solvent in the Soxhlet extractor.
As currently practiced, the official method, which uses chloroform in the Soxh-let, extracts most of the fatliquor but leaves some of the ionic portion in the sample.
Two methods, which extract virtually all the fatliquor from the sample, are de-scribed. This study indicates that these fatliquors are not chemically bonded to leather. |
| Note de contenu : |
- Table 1 : Lipid content of non-fatliquored leather as determined by the Küntzel method and by CHCl3 extraction in the soxhlet
- Table 2 : Determination of the reliability of the küntzel method used to extract total fatliquors
- Table 3 : Fatliquor content of different samples ofleather determined by three methods
- Table 4 : Fatliquor content of various samples of garda leather extracted first with n-hexane and then with the mixed solvent
- Table 5 : Percent fatliquor indifferent samples of leathers determined by the official method, the Küntzel metod, and the mixed-solvent method |
| En ligne : |
https://drive.google.com/file/d/1ZX_MbVO4qbrJT0lvUBm9EURruORUz4P0/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41368 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXIX (Année 1974) . - p. 290- 300
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An improved method for the extraction of fatliquor from leather in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXIX (Année 1974)
