Also known as the "hub" or "spine". The supporting part of the binder or book to which the front and back covers are attached. In binders, it also serves as a support to which the ring metal is attached. It is the visible part of a binder or book while it is standing on a shelf.

Bevel edge
When the selection of cover board is excessively thick (i.e. 1/4"), the cover boards are generally beveled at the edge that goes into the hinge. Using excessively thick board will not allow the cover to close properly, but beveling rectifies this problem. The other three edges of the board may also be beveled, for aesthetic purposes only.

Binder's board
A single ply, tunnel dried solid board manufactured in a wide range of thick nesses (i.e. .060 to .250"). It is manufactured to no less that .9 density. The most popular thicknesses for loose leaf binders are .098 to .120".

(Red label board is the gold standard for spec binders board. It meets all industry and government specifications for binders board and its single ply, wet lap construction offers excellent resistance to moisture and warping.)

(Chipboard is an economical board product, available in natural or black. It is perfect for a wide range of applications, including tear seal binding, P.O.P. displays, furniture manufacturing and packaging. )

 Sunbeam buckram is an aqueous coated book cloth that is ideal for applications which endure a great deal of wear. Buckram is designed for durability and longevity: it is a washable material that is mildew, UV and abrasion resistent. Its extremely uniform surface lends itself well to decoration. In addition, it meets industry standards for F grade book cloth.

Composition: Aqueous color coated combination poly/cotton woven fabric

Specification: Meets ANSI and NASTA standards for Group F book cloths

Decoration:  Hot stamping, silkscreening, embossing, debossing

Bonded leather is a luxurious cover material made from 100% leather fibers and a latex binder. It offers the premium appearance of leather at a low cost. Bonded leather offers extremely durable flexing and excellent tensile strength. The materials have been selected to guarantee a consistent temper and leather aroma.

See Turn edge

A process using heat and pressure to smooth out an embossing present on a specific material. This may be done to provide a stamping or screening area for the desired graphics.

A process using heat and pressure along with male and female dies to provide a raised three dimensional effects to the graphics

Foil stamping
A decorative technique using dies, heat, pressure and colorful foil. The desired graphics are transfered from a foil carrier to the surface of the cover material through the heat and pressure of the stamping press. Foil stamping is most often used in small areas where a metallic decoration is desired.

Headbands    A decorative element that provide the perfect finishing touch on case bound books. Available in a wide variety of color combinations to compliment nearly any book design, these headbands are closed weave style and can be applied by machine or by hand

Hinge reinforcement
A strip of canvas cloth or other strong material, such as Tyvek, which is used on the hinging areas on the inside of the binder or book between the backbone strip and the front and back covers. Use to relieve stress on the cover materials.

Imitation leather has the appearance and the feel of real top grain leather at a fraction of the price. It is perfect for applications where a premium appearance is essential.

Composition: Proxylin coated woven cotton base stock

Decoration:  Hot stamping, silk screening, embossing, debossing

Refers to the material used to line the inside of the front and back covers that extends over the turned in portion of the cover material.

Turned edge
Known alternately as "casebound" binding, a durable construction where the cover material is glued to binders board and the edges of the material are turned over the edges of the board. Produces an extremely durable, but expensive, finished product.