Print

Print


Hi,

I've seen some tape, I think it's 3M (Scotch) from late in the time of
acetate-base, that's pretty dark, reddish brown.

Richard

At 09:19 AM 5/3/2004 -0500, you wrote:
>Hello folks,
>
>Currently I'm surveying the condition of a collection of reel tapes that are
>almost entirely backed with cellulose acetate.  Usually it's obvious, because
>the acetate tapes practically glow when held up to the light.  But
>occasionally
>I'm finding a tape that is just barely translucent - if I move my finger
>behind
>the tape pack, I can see a shadow, but I have to look hard.
>
>Is there another formulation for acetate tape that isn't nearly as
>translucent?
>Because the others are so obvious, I would have marked this kind down as
>polyester or PVC, except that one of them seemed to have a slight vinegar
>odor.
>
>Thanks,
>
>Rick Taylor
>Graduate Student
>Preservation and Conservation Studies
>School of Information
>University of Texas at Austin
>[log in to unmask]