Faded ink and deacidification

I have a Mexican colonial document from 1778. The ink is fading in
various places (several different inks are used in the document).I
was wondering if it would be safe to deacidify the document or if it
will contribute to the ink fading more. If it is not safe to
deacidify, would encapsulation still be the recommended option?
Thanks,

Judith Murphy
Center for Southwest Research
UNM General Library
Albuquerque, NM 87131-1466
505-277-4416
Fax: 505-277-6019

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                  Conservation DistList Instance 9:57
                Distributed: Wednesday, January 31, 1996
                        Message Id: cdl-9-57-017
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