[Table of Contents] [Search]


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [BKARTS] non-flattness in leather covers



A few small points I would offer a different view on:

"Absolutely flat" boards can cause some of the problems you mentioned.  I prefer to aim towards the very slightly bowed (convex) board that you mentioned.  Even with a box (creating a microclimate) the book will breath humidity from the outside, but much less.

Lining boards and curing them for "months" as far as I'm concerned, is a fallacy, like the english technique of pounding the s**t out of the leather with paste.  In my almost 30 years in books, as a conservator, I've never had a book sent to me because the leather is lifting, nor has that happened to books I've bound.  

Books in my possession that I've bound without curing the boards for excess amounts of time have not altered their warp visibly.  One just needs to use common sense.  I wouldn't bind with freshly lined boards without seeing how they dry first.  On the other hand, if one lives in a very humid climate, one would have to be extra scrupulous about this.  But if curing for "months" makes you sleep better- go for it.

B
----- Original Message -----
From: "james tapley" <info@xxxxxxxxxxxxxx>
To: BOOK_ARTS-L@xxxxxxxxxxxxxxxx
Subject: [BKARTS] non-flattness in leather covers
Date:         Mon, 26 Sep 2005 12:25:31 -0400

> 
> Hi Don... Hope that MouseLand was fun for you!
> Ultimately you want the boards of the book to be absolutely flat;  
> this offers the most support to the text block and minimum strain 
> to  the joints.
> But because it can take a very long time for the moisture absorbed 
> by  the boards during binding to evaporate away and because this  
> evaporation will largely occur from the outside (books spend most 
> of  their life with boards closed) and because this drying out can 
> cause  the boards to bow out at the foredge (go concave) one is 
> taught to  leave the boards slightly convex (center of board bowed 
> slightly out)  at the finish of binding to counteract this 
> tendency. Judging the  amount of bow correctly is one of the 
> niceties of the process and is  controlled through inner linings 
> and the treatment of the leather cover.
> One normally chooses a very dense and rigid board for full leather  
> binding; one of the reasons is to minimize warping. Also the boards 
>   are lined both sides with a good quality paper and allowed to 
> cure  for several months, minimally, before use. This also 
> contributes to a  more rigid and stable board.
> I don't bind differently for clients in different locals. What  
> guarantee would one ever have that conditions there would remain 
> such  and such, much less that the book remain there? What I do 
> (and I  think most craftsmen also) is to provide an accurately made 
> and  securely closed box to house the book. This box will exert 
> sufficient  pressure to hold the boards flat and the binding is 
> allowed to go on  curing over a very long time. The box also 
> ameliorates any changes in  temperature or humidity from the 
> outside world. My preference is for  a clamshell though I do have 
> many clients who prefer a chemise and  slipcase.
> Best, James
> 
>              ***********************************************
> Edelpappband / "Millimeter" Binding Bind-O-Rama, Entry Deadline - 
> October 1, 2005
> 
>              For all your subscription questions, go to the
>                       Book_Arts-L FAQ and Archive.
> 
>           See <http://www.philobiblon.com> for full information
>              ***********************************************

             ***********************************************
Edelpappband / "Millimeter" Binding Bind-O-Rama, Entry Deadline - October 1, 2005
                                    
             For all your subscription questions, go to the
                      Book_Arts-L FAQ and Archive.
                                    
          See <http://www.philobiblon.com> for full information
             ***********************************************


[Subject index] [Index for current month] [Table of Contents] [Search]