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Esquema

Getty AAT: Materials (matter)

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

http://vocab.getty.edu/aat/300380378

Otros términos

  • leather varnish [en]