Fading of TTY paper

I have question regarding fading of yellow TTY (teletypewriter)
paper from the late 1970s/early 80s. No doubt this paper was not
intended to be retained permanently, however in this case the rolls
are part of a landmark legal case and the donors would like to have
them preserved. I've been searching online, but have not been able
to find anything related to the chemical composition of these
papers.

Does anyone have any information on the properties these papers or
where I may look?

I have not yet seen the items but will be doing so shortly.
Environmental conditions are stable and the items have been stored
in acid-free folders since accession. There may well be a reaction
to the pH at work as well.

   "They asked me to assist them with respect to their concern about
    the condition of their telephone conversations, which were
    recorded on TTY rolls of yellow paper.  Several researchers who
    visited the collection informed the donors that the TTY papers
    are fading with time, and the donors are understandably worried
    about losing a valuable resource.  They tell me there is a great
    deal of information contained in these rolls.

    The donors have two questions.  To what extent can the Library
    move to stop the deterioration of the rolls?  What is the latest
    technology used to preserve records of this kind?"

Thank you for the collective wisdom.

Peter D. Verheyen
Head of Preservation and Conservation
Syracuse University Library
Syracuse, NY 13244
315-443-9756


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                  Conservation DistList Instance 23:34
                 Distributed: Thursday, March 11, 2010
                       Message Id: cdl-23-34-021
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