Perfect Binding

Perfect Binding

Perfect Binding is the most commonly used binding method and is used on everything from phone books to magazines. When something is perfect bound all of the pages are gathered together, stacked and then the binding edge is covered in glue. Once that happens a cover that wraps around the glued spine is attached to the book to finish up the process. To create the best bond the paper grains must run parallel with the spine of the book otherwise the binding won’t be as strong. Below are a few different types of perfect binding:

Hot Adhesive

Typically is used on books that are 1/4" up to 2 1/4' thick. One drawback of hot adhesive is that the book cannot lie flat when it is open, and if too much pressure is applied the binding will break.

Cold Adhesive

Cold glue isn't used used nearly as often as hot glue because it is more expensive and requires more time to cure, but it's stronger and more flexible. When a cold adhesive is used in conjunction with a scored and hinged cover the book can lie flat when it is open without damaging the binding.

Thermal Binding

Don't confuse hot adhesives with thermal binding, they both use heat but instead of glue an adhesive strip is used. Pages are fed into a machine where the strip is attached to a wrap around cover. This is applied to the binding edge of the paper, and the heat is applied so that the adhesive strip and cover bind with the pages.