[article]
| Titre : |
Strength of brazilian goatskin leathers in relation to skin and animal characteristics |
| Type de document : |
texte imprimé |
| Auteurs : |
Y. L. Wang, Auteur ; Geoffrey E. Attenburrow, Auteur |
| Année de publication : |
1994 |
| Article en page(s) : |
p. 55-60 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
There are clearly advantages in being able to understand how the characteristics of an animal's raw skin relate to the physical properties of the leather produced from it For example, such knowledge will assist in the selection of those breeds which will yield the best leather for a given application. Although there have bee a number of studies relating animal and skin characteristics to leather properties for bovine leather research on this topic apears less well developed for goatskins and leather. This paper therefore details some recent work on Brazilian goat skins wich was concerned with the relationship between animal and skin characteristics and leather strength.
Goatskins covering a range of breed, age and sex were obtained from the Sobral experimental station in Brazil. The skins were subjected to a variety of chemical, biochemical, biophysical and histological analyses including measurement of collagen content, fat content, amount of glycosaminoglycan, relaxation of shrinkage stress and assessment of compactness of fibre weave. The skins were all processed together into leather and strength was assessed via tensile testing, tear testing and lastometer test. In addition, the apparent density of the leather was also measured.
Most of the skin and leather characteristics showed a well-defined trend with increasing animal age. Glycosaminoglycan content and relaxation of shrinkage tension decreased rapidly up to the age of ten months thereafter more slowly. Collagen content increased more slowly up to age 20 months and thereafter levelled off. The weave of collagen fibre bundles became more compact with age.
The strength of the leathers was strongly associated with their apparent density which in turn could be related to the compactness of fibre bundle weave in the skin. Although animal age appeared to be the dominant factor, breed influences could also be discerned. Thus the anglo-nubiana breed gave a lower strength leather than the general trend would suggest : this was ascribed to the greated fat content of its skin.
It is concluded that assessments of goatskin characteristics can be directly related to leather strength. Such information is of considerable value in assessing which breeds are of most potential for leather production. |
| En ligne : |
https://drive.google.com/file/d/1CDPYc9jeGyTdGLAg8yaINQ4F8tZ_7D7B/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8388 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 78, N° 2 (03-04/1994) . - p. 55-60
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