Digital BW, The Print

Just to pass on something from my experiences. In approx 1973 I drymounted some photos onto shirt cardboard..for those not as old as I ,  it was the cardboard in laundered shirts which , at the time were folded around the cardboard. I found two of them a year ago and  there was no sign of acid leach or yellowing. They were printed on fiber based paper and I washed the hell out of all my prints. I sent them to the people who were in them so do'nt have them to show. 
     I am not sure if this will help...maybe I was just lucky and also this was before recycled papers and cardboards. 
    Instead of the bright white cardboard, maybe if you backed it with some inexpensive photo paper that has no acid in it.
  Frank in NJ

Richard Smallfield <r.smallfield@...> wrote:
          Hi,
I'm currently preparing some framed images for local exhibition using my stock frames.

Some of the backing boards had got defaced as they've been used so much, so what I've done is to buy some quite thin, bright white cardboard to put over the old backing boards so that the backs are pristine.

I wondered whether such a practice could be unwise due to acid eventually migrating through the formacote or foamcore backing boards and into the photo paper. I'm hoping that the formacote or foamcore is thick enough for this not to happen - but don't have any experience to base this hope on. If so, I could perhaps put a layer of tin foil or polypropylene between the two. 

When businesses reopen after the xmas break it might just be easier to buy some large sheets of acid-free cardboard but I want to get these pictures on display before the end of the holiday season.

thanks,
Richard
--
Backroads Essay:
http://picasaweb.google.com/rsmallfield/TheBackroadsOfWarkworth
Greeting Cards available for purchase:
http://picasaweb.google.com/rsmallfield/GreetingCards
http://photos.smallfield.vze.com
http://smallfield.vze.com

"Everything that can be invented has been invented." 
--Charles H. Duell, Commissioner, U.S. Office of 
Patents, 1899 



                         


"The luckiest dogs are those with clipped tails....they're the ones who won't be chasing their own arses."
       
---------------------------------
Be a better friend, newshound, and know-it-all with Yahoo! Mobile.  Try it now.

[Non-text portions of this message have been removed]