Tipping in bookplates

A query to the weary:

Does anyone tip-in their bookplates into their general collections
materials, rather than completely gluing them down?  We are looking into
the possibility of custom-printing bookplates (as we already do on
acid-free paper) but with a narrow stripe of moisture-activated adhesive
along the top portion of the verso, an adhesive similar to the type used
on US postage stamps.  (What is this adhesive anyway, you conservators
of things philatelic?)  Our reason is twofold: to simplify the plating
operation (not under preservation's warm wing)(those folks have to clean
that darned machine every night!); and to eliminate, if possible, a
cranky glue machine (recently purchased, the old one worked better)
which applies too much adhesive, causing it to ooze out minutely along
the bookplate edges after the book is closed and sticking to the free
flyleaf.  (The machine is oblivious to our adjustments to correct this
senseless, insensitive behavior.  And we don't want to have to put
thousands of sheets of waxed paper or silicone release paper into the
books to band-aid the problem.  Who's going to remove them?  And will
they be recycled?)  Does anyone know why the metal rollers of the glue
machine hold more adhesive when the machine is first turned on than
after it has been cranking away for a while?  Does this have to do with
cold vs. warm rollers?  Or cold vs. warm glue?  Or operator error?
Blink.

Robert J. Milevski
Preservation Librarian
Princeton University Libraries
One Washington Road
Princeton, New Jersey 08544
609-258-5591; fax, 609-258-4105 or -5571; email,  

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                  Conservation DistList Instance 5:49
                 Distributed: Wednesday, April 15, 1992
                        Message Id: cdl-5-49-007
                                  ***