SV: slightly OT: tea toning cyanotypes

Does anyone else know - is tea archival?
 
/peter

-----Ursprungligt meddelande-----
Från: Taylor, Jane [mailto:taylor74@marshall.edu]
Skickat: den 24 november 2003 13:15
Till: alt-photo-process-l@sask.usask.ca
Ämne: RE: slightly OT: tea toning cyanotypes

Yes,
 
I have used tea a lot (pure "powdered" tea worked better than pure tannin
and is MUCH cheaper) with cyanotypes. Do it of course as the last step as it
can't be washed afterwards, and will affect any subsequent layers of
cyanotype that you apply.
It changes the colour to anything from brownish to purple tones, depending
on the strength of the solution. I use it selectively in parts of the image
to get a greater range of colours from my cyanotypes.
Occasionally the tea toning causes the image to lose a little definition in
detailed areas. I assume tea is archival, but haven't researched it.
 
 
Jane.

 
Received on Mon Nov 24 06:18:43 2003