We’re almost at the end of our journey now. A lot's
going to happen in this post and if you are following it I would read it
thoroughly before attempting to cover your book. The reason being, once you get
started you can’t really break off.
Our first job is to mix up some paste. There are many
forms of paste from basic flour to cornstarch and refined wheat starch pastes.
There are ready made pastes on the market and they can be useful to have around
for some jobs, but you’ve already gone to this much trouble, what’s making a
little paste.
The reason for using paste as opposed to PVA is that
it penetrates the leather and the board causing a very strong bond. It is also
reversible if required.
The paste I have used here is made by adding 25g of
shoufu refined wheat starch to 250ml of boiled water that I’ve aloud to cool.
The mixture is then heated in a double boiler for about 20-30 minutes until it
thickens. When ready sieve into a sealable jar, and allow to cool before use.
This will last 3-5 days if refrigerated. For more paste recipes please follow this link http://www.maudiemade.com/making-paste/
I have used plain flour before, and it is more than
adequate but shoufu is incredibly fine and makes a lovely paste.
You’re going to need to prepare your area, and have
everything you need close to hand. Various bone folders, shears, various
brushes, scalpels and some thick string.
Before you start, make sure your fingernails are
clipped and take all rings, watches etc off. While the leather is being worked
it can be marked very easily.
We now need to perform a couple of small yet important
tasks on the book itself.
Firstly we need to cut back the corners of the boards
close to the joint at head and tail. This angled cut allows the leather to be
formed into the joint and stops it from possibly tearing over time.
To do this open the cover and slot in a thin plate
just in case your knife slips and you cut into the spine. I use a No.25 scalpel
for this. Repeat at all four corners.
Next we need to slit open the hollow back at a depth
matching the amount of leather to be turned in. When this is done place the book
aside.
Make sure your work surface dust free and clean as
anything can and will mark your leather.
Ok, now take your leather and dampen the ‘hair’ side
of the leather. This makes it more supple and helps draw the paste into the
leather.
Now give the ‘flesh’ side of the leather it’s first
pasting. This primes the leather. Have a pair of tweezers to hand just in case
you brush starts to shed hairs.
Allow this first pasting to soak in for a little
while.
Now apply a second layer of paste to the leather and
some to the spine and joints of the book.
Place the book, front side first, onto the pasted
leather keeping to the markings.
With the palm of your hand carefully bring the leather
over the spine and onto the back.
Now up end the book and rest it on it’s fore edge and
smooth the leather over the spine and down towards the fore edge.
With your folder and fingers start to work the turn
ins. Work on one side at a time turning the leather in towards the spine.
The next stage, in my view, is one of the most difficult
in the whole process.
We need to feed the leather into the slit we made in
the hollow back. This can be quite frustrating due to hollow sometimes being a
little stiff. For this purpose I’ve made a couple of wedges that help to keep
the hollow open.
When the leather is tucked in, make sure you leave
some excess leather poking out to form the ‘caps’ later. The amount you leave
needs to be enough to come over and partially cover the headbands. Repeat the
process on the other spine edge.
Before we start on the fore edge we need to set the
joints. Take a gilding or pressing board, open the cover and push the board up
against the edge of the book board.
Paste the fore edge turn ins and using you folder
and fingers turn them in crisply.
Now pull open the leather at the corner, pinch the
leather together and with your shears trim the excess.
Reopen the corner, re paste and start to pleat the
leather at the very corner over the board. Bring the turn ins together and
smooth off with your folder. Repeat on the other three corners.
Cut a piece of string long enough to go all around the
book from head to tail. With the string mark the joint top and bottom on both
sides.
Now tie the string around the book located in the
marks you made. This can be annoying and an extra pair of hands wouldn’t go a
miss!
We’re now going to work on the head and tail caps. To
protect the rest of the book I wrap some Archival Kraft around so as not to
mark the leather.
With a small thin folder flatten out the excess
leather at the cap making sure it looks even.
Take the same small thin folder and flatten the
leather close to the joint, up against the tied string making them nice and
neat.
With a pointed folder pull out the edges of the
caps, easing them out against the string.
Finally with a flat folder push straight down onto the
cap. This will flatten it, forming a cap that will partially cover and protect
the headband and mimic the thickness of the boards.
Now place acetate between the boards and book to
prevent any excess moisture getting to the book block and press between lightly
weighted boards and leave over night.
Next day while the book is still a little moist we
need to perform a controlled opening. This basically lets the book know that it
is a book and better start acting like one.
First try to open the cover. If it opens freely, all
well and good. If not, slightly dampen the joints at head and tail where it is
thickest with a soft brush and start to ease it open. Eventually it will open
freely. Do the same to the other side.
Now with the book lying flat take a page either side
and open them flat working your way to the centre of the book.
Replace the acetate and return to the weighted
boards.
Our final stage will be to fill and line the inside of
the boards and apply the endpapers, which we will tackle in the last of these
posts.
Thanks to Rick Whitham for taking the photo's for this post. Would have been quite tricky otherwise!