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Re: acid free paper
- To: BOOK_ARTS-L@LISTSERV.SYR.EDU
- Subject: Re: acid free paper
- From: Barbara Buchanan <barbara_buchanan@PCH.GC.CA>
- Date: Fri, 22 Aug 1997 16:33:58 EST
- Message-Id: <199708222057.NAA17460@SUL-Server-2.Stanford.EDU>
- Sender: "The Book Arts: binding, typography, collecting" <BOOK_ARTS-L@LISTSERV.SYR.EDU>
Paper designated acid free indicates that at the time of its
manufacture it contained no detectable acidity. PH neutral papers are,
then, acid free (neither acid nor alkaline, pH 7). Buffered papers
contain an alkaline reserve,usually have a pH of around 8 or 8.5 and
are thought to provide a buffer between the atmospheric or
environmental acidity and the rate of deterioration of the paper.
Papers with an alkaline reserve are often referred to as "permanent".
However, if you are making albums for photographs, use acid free, pH
neutral paper, NOT a buffered paper. Some photographic processes are
adversely affected by the alkaline reserve in buffered paper.
Non-buffered paper and boards made expressly for photographic storage
are available from suppliers of archival materials (University
Products, Gaylord, etc)
Hope this helps...