Darlington Media Group (postmaster@mediaworkshop.demon.co.uk)
Tue, 23 Nov 1999 20:02:58 +0000
Keith,
The "Ware" Cyanotype chemistry could almost have been designed to test the
purity of a paper. It is far more paper specific than the traditional
recipe, though its speed, density, contrast curve (if developed in a dilute
acid .. eg 1% HCl) and its lack of image loss during processing are all
cited as advantages.
I would be tempted to size and harden the paper after the cyanotype image
is made. To avoid registration errors, you could pre-soak the paper in
plain tepid water and dry before coating with the "Ware" cyanotype formula.
If this seems a chore, then switch to the traditional cyanotype recipe,
which will probably be unaffected by the glyoxal hardening process, but you
will have to forego the advantages(?) of the modern recipe.
Cheers ...... Tony McLean.
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