From: Sandy King (sanking@hubcap.clemson.edu)
Date: 12/17/00-06:54:29 PM Z
Gelabrom is essentially a variation of carbro. It is somewhat easier to
work in that one of the most critical procedures of carbro, that of
squeeging together the bromide with sensitized carbon tissue, is obviated
bt the fact that the tissue is made in situ on the bromide. A disadvantage
compared to carbro is that you are limited to the surface of the bromide
printer, i.e. no transfer to another surface is possible.
As in carbro the gelabrom the tonal scale is like the curve (S curve) of a
silver print, the bromide printer used to make the pigment print. This
makes it very different from a carbon print which has a very long straight
line curve.
Sandy King
>Dear Burkhardt
>
>Yes I did.
>
>Basically it's very simple:
>Coate pigmented gelatin on a properly developed and
>fixed out bromide.
>Apply a chromated bath very close to that used with carbro
>which hardens the pigmented top coat and bleaches the silver
>image below.
>Than wash of unhardened gelatin and fixe out the bleached
>out silver image.
>
>Problem is to find suitable bromides and inks, apply a good
>and equal coating, and provide propperly temperated
>processing conditions.
>
>Morre details can be found at Luis' 'Modern Carbon Printing'.
>
>Cheers
>Stefan
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>----- Original Message -----
>From: Burkhardt Kiegeland <bkiegeland@weisserlotus.co.at>
>To: <alt-photo-process-l@sask.usask.ca>
>Sent: Sunday, December 17, 2000 8:58 PM
>Subject: Gelabrom
>
>
>In »Spirits of Salt«, published by Argentum in 1999, I find
>short reference to a process called Gelabrom, a variation an
>Carbro not needing transfer as well as carbon tissue.
>
>Is someone out there with some experience in this process?
>
>Thank you very much in andvance
>
>
>Burkhardt kiegeland
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