Cor Knops’s Five Essential Book Conservation Tools

Cor Knops’s five tools.

Cor Knops

Owner of Knops Boekrestauratie. Book conservator in private practice. Munstergeleen, Netherlands.

These are my five favorite tools for book conservation.

1. Stitch Cutter. This is a Swann-Morton disposable stitch cutter blade mounted in a cheap hobby shop handle. The blade is razor sharp and ideal to cut the sewing of books. You can easily cut the threads without any damage to the paper. The blade is also useful for many other delicate cutting operations. I don’t sharpen these blades: when blunt I mount a new one.

2. Olfa Cutter SA-C 1. This is my favorite snap-off blade knife. The blade angle is 30 degrees instead of the more common 60 degrees. Because of the sharper angle, it cuts delicate paper like Japanese paper without fraying. What I also like is the very slim dimensions of this knife. It’s only 11,5 wide x 4,3 mm thick, and without the blade 136 mm long. Also the non-coated stainless steel finish is very enjoyable to hold.

3. Curved Tweezer. Very fine and precise pointed tweezer. It allows you to pick up the finest things, and you might be surprised what you find in the gutter from books….

4. Curved scissors. This little scissors is only 117 mm long. Not so visible on the picture is that is has curved blades. This makes it ideal to cut in hard to reach places. Also nice is the metal spring which open up the scissors by itself. [Note: these are called “conjunctival scissors” in the US]

5. Dental Pick. I have many, many spatula and all kind of other small tools to ‘fumble’ with. But this miraculous tool is quite unique. It has two identical end tips. But the angles are opposite, so when releasing leather from a leather binding for instance, the funny thing is you can flip the spatula in one movement in your hand and the ‘angle of attack’ changes. It needs some practicing but it helps to work more efficiently.

Vriendelijke groeten,
Cor Knops

Andreas Dombrowskyj’s Five Essential Book Repair Tools

Andreas Dombrowskyj

Conservation Technician, Columbia University Libraries.
[ NOTE: I worked with Andreas beginning in the early 1990s at Columbia University’s Conservation Lab. Once they reopen, he will soon be completing 60 years of service! ]
1. My bone folder which I can’t do without.
Andreas uses an older version of this German bookbinding knife. Source:  https://hollanders.com/collections/knives-cutting/products/paper-knife-w-unfinished-wood-handle
2. My four knives which I use in different situations, they differ in size and  sharpness. Two are like the one above. What is good is about them is they have a certain amount of flex which I need when I’m peeling binders board from the back of the end sheet. In order to save original end sheets (often maps or other decorative designs), I have to go from the back of the end sheet. This involves peeling different types of binders boards, with different densities. and made of different materials. A sharp knife is needed to peel away the back of the end sheet.
I made this replica of Andreas’s rigid dull knife from memory. I think the shape was caused by 50+ years of work and resharpening, given the thickness of the spine of the blade.
The other two are smaller and have a more rigid back of the blade (see below). They are good for cleaning the book spines.  When I clean the back of the books, a dull knife like these is good because it is a scraping action and not a cutting one.
3. Scissors, a standard bookbinder’s model with one blunt end.
4. Micro-spatula, a Caselli, of course.
5. Sanding block, which is helpful when tip-ins are done. The sandpaper block  is used on any bits of paper that sticks out.
I could list others, but those are ones that I use most.

Karen Hanmer’s Five Essential Bookbinding Tools

Karen Hanmer

Bookbinder in solo practice, http://www.karenhanmer.com/

Only FIVE?!

Maybe that’s not so limiting after all. Two experiences have taught me that with tools it is true that less is more. First: observing time lost when someone is forever rummaging through their steamer trunk-sized toolbox. Second: over my career learning to work more efficiently. An important component of this has been finding several uses for whatever tool is in my hand rather than suspending work to reach for another.

These are the essential tasks I perform:

fold

sew

measure

mark

cut

apply

press

All of these tasks can be accomplished with a very modest toolkit made up of the following five items.

1. Folder. Bone for a sharp crease on paper, Teflon for surfaces that might become burnished. A Delrin Folder combines the best properties of both.

2. Needle. A #18 John James is strong enough to go through any paper text block and the eye is large enough to thread effortlessly with sizes up to 18/3, and with some persistence 12/3. I use the same size for sewing endbands.

A needle in a pin vise becomes an awl, which can also be used to score, scribe lines, mark measurements, clean tooling, and apply adhesive or color to precise areas. A pin vise is more versatile than an awl because it can be outfitted with any size needle, sharp or blunt. I favor this one over Jim’s because it is narrow, rolls up with other tools for travel.

3. Knife. If limited to one, I’ll take an ergonomic scalpel handle and outfit it with a #23 Havel’s blade.

4. Straight edge. Not cork-backed. To make them non-skid I’ve been saving the ½-inch that remains after cutting the finest grit micro finishing films to fit sharpening plates and adhering that to the back of all my straightedges. Too fine to scratch whatever I place the straightedge on, and adds almost no thickness to skew my cuts.

5. Brushes. A selection appropriate in size to the area of adhesive being applied.

I’m going to consider the final two items freebies since they can be scrounged up in any home or office:

Paper “rulers.” Narrow strips of unprinted waste paper used with a pencil tick or fold mark to transfer measurements from one material to another, functioning as no-cost dividers, and sometimes better because they can measure spine width and other non-flat surfaces. These can also be used to mask areas when applying adhesive and to mark the center of sections when sewing endbands. [Note: this is called comparative measuring]

Weights.

I’d supplement a larger kit with the following:

A microspatula.

Dividers.

A small rectangle of non skid shelf lining anchors a finishing press in place, keeps beginners’ work from sliding all over the bench when they are learning to case in, and an even smaller piece will help grip a needle for binders who are losing their dexterity.

A small brass triangle with a handle is easy to grip and position, can mark corners prior to covering, is a stable mini straight edge, and doubles as a light weight to aid in placement.

The variety of machinist square called a “footed square” ensures book blocks and boards are square, aids transfer of marks at the board edge to the point of lacing, and is another light-duty weight.

A thin, narrow folder is essential for forming headcaps and doubles as a short-handled microspatula.

An inexpensive English paring knife separate from the one I use to pare leather for utility cutting: back corners, pre shaping boards prior to sanding, and cutting off excess cords and leather “pegs” on historical bindings.