Digital BW, The Print

Thanks, Daniela.
--
Sam


On Oct 28, 2008, at 10:51 AM, dgattarino wrote:

> Coating is applied for several reasons:
> 1) Deeper blacks (L* goes from 21-uncoated to about 11 after coating)
> 2) Protection of the print (gelatine based emulsions are not permeable
> to water)
> 3) general look of the print
>
> Hopefully, you never need to reapply coating. However, being gelatine
> a natural product, could get damaged if stored improperly (much like
> silver-gelatine prints). The main difference is that, once the
> emulsion in silver gelatin is ruined for any reason, that is forever,
> as the image is in the emulsion. With Carbon-gelatine, the image is in
> the paper, namely underneath the emulsion, and a good conservator can
> easily repair a ruined emulsion without affecting the underlying image
>
> Daniela