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Re : Mordancage: background .....
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>De : Judy Seigel <jseigel@panix.com>
>À : alt-photo-process-l@skyway.usask.ca
>Objet : Re: Mordancage: background and formula (long post)
>Date : Sam 19 fév 2000 20:44
>
> I first heard about mordancage from Pierre Cordier, who taught a workshop
> in chemigram at ICP sometime around 1983. He referred (actually in
> passing) to a process he called "Mariage" -- what's that!?...He replied,
> in effect, "oh you know, it's mordancage". I hadn't heard of that either,
> and I daresay instantly lost whatever credibility I might have had.
> Cordier made it clear that the process was quite familiar and popular in
> France, and that I'd find it "in the literature."
>
> I did ultimately, tho I don't remember where -- it wasn't in any one of 10
> editions of "Facts and Formulas," for instance. It may have been
> Glafkides, and/or Clerc, but a man by the name of *Mariage* was given as
> inventor/discoverer -- and as I recall he was quite prior to Sudre.
> Although Sudre of course may have evolved, popularized, and made it his
> own.
L.P.Clerc in his "La technique Photographique" of the 1930's refers in his
chapter on 'Généralités sur les virages par teinture sur mordançage'that
R. Namias (1909-1911) suggested the use, as mordants, of different metallic
ferrocyanides and that, after a publication by J.I. Crabtree (1917) the
practical use of copper ferrocyanide was formulated.
Probably Pierre Cordier (a long time friend from way back in the 1950's)
refered to Namias when he mentioned the mordançage process to Judy.
Anyway the term "mordançage" seems to be born in France before the time of
the admirable person who was J.P.Sudre.
Greetings from Brussels,
Roger
Roger Kockaerts
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