Titre : |
Flat and predictable leather |
Type de document : |
texte imprimé |
Auteurs : |
Walter Landmann, Auteur ; Richard Daniels, Auteur |
Année de publication : |
2005 |
Article en page(s) : |
p. 29 |
Langues : |
Anglais (eng) |
Catégories : |
Cuirs et peaux de bovins Homogénéisation (technologie) Peaux brutes -- Structure Surfaces (Physique)
|
Index. décimale : |
675 Technologie du cuir et de la fourrure |
Résumé : |
Hides and skins are naturally rounded and fully contoured to the shape of the living animal. In addition the skin allows flexibility of movement and protection, but these needs vary according to the area being covered.
Some parts, such as the belly areas, need no stretch easily while other areas, such as the butt and backbone, are thicker, denser and less exendable.
One of the main leather making tasks is to produce a flat leather. However the leather must also show greater uniformity in terms of elasticity and shape retention to be useful as a material in the manufacture of an end product.
The liming process starts to address the problems of curvature and separation of the fibre structure. This leads to a general flattering in the finished leather as the fibres can move more readily. Moreover, a major relaxation occurs during the fleshing operation as the membrane-like tissues are cut from the flesh side of the hide, as these restrict and confine movement. This is especially noticeable in the peripheral parts of the hide-bellies and shanks-and in the growthy neck areas.
The hides relax further during the deliming/bating, and degreasing if appropriate, with the beefits largely maintained during the tanning process. If managed correctly, the process not only stabilises the hide, but also maintains a flat grain with minimised draw and growth. |
Note de contenu : |
- Stretch : aiming for cross-hide uniformity
- Shape retention and set
- Additional information
- Panel EI/I : The effects of splitting/shaving to substance |
En ligne : |
https://drive.google.com/file/d/1CC4umEFzhtoqcEJUyMhZD0RS0_y3lhfh/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32461 |
in WORLD LEATHER > Vol. 18, N° 3 (05/2005) . - p. 29