[article]
| Titre : |
Elasticity and setting of stretched leather |
| Type de document : |
texte imprimé |
| Auteurs : |
Albert M. Manich, Auteur ; M. de Castellar, Auteur ; B. Gonzà lez, Auteur ; M. Ussman, Auteur ; Agusti Marsal, Auteur |
| Année de publication : |
2007 |
| Article en page(s) : |
p. 43-51 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The effect of stretching treatments on the balance between plasticity and elasticity of leather has been studied. Four different tanned and fatliquored bovine leathers were subjected to stretching treatments completely immersed in water. Variables of stretching were a) water temperatures between 60 and 80ºC, b) stretching ratios between 1.20 and 1.40 and c) stretching time between 10 and 20 min. Thickness and apparent density were measured. Variations in plasticity-elasticity balance induced by the stretching treatments were assessed subjecting the samples at two cycle loading-unloading test measuring the elongation induced by the maximum load in the first cycle, the Immediate Elastic Recovery, Delayed Recovery, Permanent Set and the Bedding-in Work Factor. Stretching favours the bedding-in and setting of the network of collagen fibres, increases the elasticity and decreases the plasticity of leather. When subjected to cyclic loading, straining induces additional bedding-in effect on the network of collagen fibres. Leather straining and their immediate elastic recovery and permanent set mainly depend on the applied load while delayed recovery and bedding-in is more dependent on the leather structure than on the load applied. |
| En ligne : |
https://drive.google.com/file/d/1BIWCaRhEI8_t7kHW6cSzVbEKZo6J4uFY/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3367 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CII, N° 2 (02/2007) . - p. 43-51
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Elasticity and setting of stretched leather in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CII, N° 2 (02/2007)
