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Chris and ALL,
Chris,
you thought, '' So if one mixed a little washing soda into the bleach it
should approximate Javelle''.
NO ! !
Please note that only one ounce of KoCl
(bleach ) is diluted with 36 ounces of water to give a working solution
which is Eau de Javelle for the Fresson /
Arvel process.
Happy hunting .
John - Photographist - London - UK
........................................................................................
To clarify a little further and to quote the next
para in Nadeau's, ''Gum Dichromate.'' 1987. Page 76 Chapter V1:-
''Mouret, mentioning the work of Charles W . Miller
writes :
''Early in the morning, he places a
piece of sensitized Fresson paper in contact with a paper negative outside of
the window, and leaves it there all day long without the least inspection.
In the evening, he transfers the paper into the cold water bath for 4 minutes
and then into another tray containing a mixture of 1 ounce of Javelle
water and 3 6 ounces of ordinary tap water. Now the paper must be
watched very carefully, and as soon as the edges begin to lighten it must be
instantly removed and placed either on a glass or tin plate, or in an empty
tray. It may now be sprayed carefully under the tap, or better with the
aid of a rubber hose carrying a glass or hard rubber tip, to enable the operator
to direct a fine jet of water just at the point where it is momentarily
required. The entire surface must be treated in this fashion, until the
desired degree of density has been reached, whereupon the picture may be hung up
for drying.''
Charles M. Mouret. ''The Fresson Direct
Carbon Printing Process'', The American Annual of
Photography. (1929 ) pp 179 -182
''
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