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Re: Alum Tawed Goatskin and covering in stages
- To: BOOK_ARTS-L@xxxxxxxxxxxxxxxx
- Subject: Re: Alum Tawed Goatskin and covering in stages
- From: Don Rash <dnrash@xxxxxxxx>
- Date: Sat, 12 Sep 1998 08:08:35 +0100
- Message-id: <199809121207.FAA18218@SUL-Server-2.Stanford.EDU>
- Organization: Don Rash, fine bookbinder
- Sender: "Book_Arts-L: READ THE FAQ at http://www.dreamscape.com/pdverhey" <BOOK_ARTS-L@xxxxxxxxxxxxxxxx>
Bob Roberts wrote:
> How do you recommend covering in stages using wheat paste? Do you
> paste the leather completely, but adhere only the spine... or paste only
> the surface the leather will be attached to?
> Regarding the turn-ins... If not careful, I've had an ugly dark
> tide line at the corners after following this procedure: pva for the
> boards, wheatpaste for the turn-ins. We tried duplicating that problem
> with scraps of the alum-tawed goatskin, but couldn't. So far, I've only
> had it show on red harmatan. Any thoughts? Does it have to do with red
> dye releasing during wetting?
Paste only the surface you're adhereing at each stage; after attaching the
leather to the spine put the book between clean boards and a weight until
dry. Paste out and lay the sides and again between boards ( with clean
blotters this time) and a weight. Damp the joints and flex the boards open,
then do the turn-ins.
As you surmised, the tideline problem has to do with migration of dyes or
impurities in the skin, and it's not something one can predict. A solution
which works for me is that anytime I dampen an area (turn-ins, say) I
lightly damp the whole skin.