Many annual reports and larger catalogs use this binding method. Here, pages are assembled in groups or signatures, and bound together with flexible adhesive, then covered. Perfect binding accommodates books approximately 1/8-inch to 2-inch in thickness. This is a perfect for magazine or softcover books. You can refer to Perfect Bind Calculator to measure the size of the spines and number of pages.
Advantages: Accommodates greater number of pages and higher page weights than saddle-stitch; accommodates multiple sheet weights and sizes; allows intermix of stocks; provides clean finished edge.
Disadvantages: After pages are collected into signatures, the binding edge is ground off to improve adhesion. That, along with a three-knife trim, takes approximately 1/8-inch from each side of a document. Do not lie flat; crossover images and type may be partially hidden by the binding edge
Saddle Wire Stitch
The saddle wire stitch allows the book to lie flat for reading ease. It can be bound with either a self-cover, or a separate cover. It is the most economical solution. Our saddle-stitched machine is capable to produce up to 200 page book by creating a square edge spine.
Advantages: The saddle wire stitch allows the book to lie flat for reading ease. It can be bound with either a self-cover, or a separate cover. It is the most economical.
Disadvantage: The page count must be divisible by four. This restricts the number of pages. It is the least flexible of all binding options.
Wire-O is a mechanical binding in which pages and cover are held together by a plastic coil. This mechanical binding allows their contents to open wide and lie perfectly flat. Wire-0 can be used as few as 5-10 pages to 2” thick coil. It is ideal for instructional books that need to be laid flat.
Advantages: Lies flat; pages can be removed without deletion; adaptable to different paper types; offers singe-sheet insertion for flexible page count; bindings come in a wide variety of colors.
Disadvantages: Greater expense; can detract from project aesthetics.