| Titre : |
No dye leather |
| Type de document : |
texte imprimé |
| Auteurs : |
Karl Flowers, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 34-38 |
| Langues : |
Anglais (eng) |
| Catégories : |
Cuirs et peaux -- Teinture
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Several tanneries and brands have been mooting the idea that some of the leathers in their supply chain will not receive any colour changes in the form of dyed leather. The idea that the colour changing step could be omitted is an interesting one. There will always be a natural colour associated with the type of animal pelt used. The material will usually be an off-white grey colour that can have the presence of melanin pigments, which are usually the same colour as the hair colour that is present above them ; when the leather had its hair.
The beamhouse processes, most notably the pickling step, will usually remove the natural colour, but a tanner may include a deliberate bleaching step that completely obliterates the pigmentation, such as oxidative bleaching of birds and reptiles. |
| Note de contenu : |
- Fig. 1 : Red, drum dyed, chromium-tanned leather, undyed brown vegetable tannage (veg tan) leather, and undyed grey/blue chromium tanned leather (clokwise)
- Fig. 2 : Dyeing strategies : Full dye penetration, incomplete dye penetration and no dye leathers
- Fig. 3 : Disintegrated leather that can be recycled into hydrolysates that can be incorporated into next generation leathers
- Fig. 4 : Reintroduction of coloured hydrolysates into the next generationof leather could impart contaminating colours into the cross section and on the the surface |
| En ligne : |
https://drive.google.com/file/d/1JApwYK2fWy5Icjc4fmrkeGUBS98rP4IS/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34720 |
in INTERNATIONAL LEATHER MAKER (ILM) > N° 42 (07-08/2020) . - p. 34-38
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No dye leather in INTERNATIONAL LEATHER MAKER (ILM), N° 42 (07-08/2020)
