Vernis cuir
Esquema
Jerarquía
<materials by function> > coating (material) > <coating by function> > protective coating
Descripción
A photographic coating composed of layers of gelatin and tannic acid introduced by Louis-Désiré Blanquart-Évrard in 1857 to resolve the problem of image impermanence.
URI original del concepto
Otros términos
- leather varnish [en]