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Re: [BKARTS] two questions (fan binding and altered books)



Thanks, Ben & Duncan, for your replies

At Thursday 11/7/2002 07:39 AM, you wrote:
>Waqar wrote:
>
> >I have been reading about perfect binding and was wondering how it differs
> >from double-fan binding?
>
>         From a mechanized point of view, the perfect binding machine
>has a milling station that puts small crosshatch marks on the spine
>as the text block travels past.  Fan binding machines usually have
>deeper notching to allow for further penetration of the adhesives.
>Some of the notching systems will go as deep as 1/4 to 3/8 of an
>inch.  The milling stations on a perfect binder usually cut no deeper
>than one or two millimeters.
>
>
> >  Aside from tilting the pages one way then the
> >other to get a bit more glue penetration, is there any difference between
> >double-fan and perfect (apart from the heated glue)?
>
>         The adhesives tend to be different, even if both machines are
>using PVA's.  The perfect binding adhesives tend to dry with more
>rigidity - hot melt or cold emulsion.
>
>
> >On a slightly tangential line during my experiments at home I'm having a
> >tough time getting the covers folding at the right places and fitting the
> >spine. Anybody care to share their techniques for getting a good fit
> >between the cover and book block for paperbacks?
>
>
>         Glue the text block first, let it dry completely.  You can
>then form the paper cover around the text block.  Lay the text block
>spine down on the paper, mark some how, then score the cover.  Fold
>the paper over, test fit before applying any adhesive.  If everything
>fits glue up and let dry.
>
>
>- Duncan
>--
>******************************************
>"I hate quotations."
>              -- Ralph Waldo Emerson
>
>
>    Duncan   http://www.campbell-logan.com
>
>         Campbell-Logan Bindery, Inc.
>               Minneapolis, MN
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             ***********************************************
            BOOK_ARTS-L: The listserv for all the book arts.
      For subscription information, the Archive, and other related
            resources and links go to the Book_Arts-L FAQ at:
                      <http://www.philobiblon.com>

        Archive maintained and suppported by Conservation OnLine
                    <http://palimpsest.stanford.edu>
             ***********************************************


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