The largest binding coil that is readily available measures 2" in diameter. The maximum number of pages is dependent upon the capacity of the largest coil available to bind the book and the thickness of the paper being used for the pages. Since each sheet counts as two pages, the minimum number of pages that can be spiral bound is four.Ĥ) What is the maximum number of pages that can be Spiral Bound? Two sheets of paper can be bound together with the spiral binding method. These protective covers are a relatively common request for certain book projects, particularly manuals, as it adds durability and a finished look to the document.ģ) What is the minimum number of pages that can be Spiral Bound? Some spiral bound book projects call for a sheet of clear acetate to be bound into the front of the book and a black vinyl backer to be bound into the back of the book. Depending on the project, the cover is often heavier, glossier, and/or a different texture than the interior pages. In most cases, the cover of a spiral bound book is created from a different paper stock than the interior pages. The more pages the book has, the larger the coil diameter must be for proper function and aesthetics. Spiral coils come in a variety of diameters to accommodate books of varying thicknesses. After a coil of appropriate pitch is fed through all the holes in the cover and pages, the coil is crimped at both ends to keep it in place. The number of holes punched per inch is known as the pitch and usually varies between 3 and 5, with 4 holes per inch (4:1) being the most widely used pitch. Shaped like a long spring, the coil is inserted and twisted through small holes punched along the spinal edge of the book's cover and pages. The spiral binding method joins the pages and cover of a book using a coil that is made of very durable plastic. Spiral Binding and Coil Binding are interchangeable terms for the same book binding method.Ģ) How is a Spiral Bound book constructed? Books bound with this method can lie flat for hands-free reading, making it a good choice for instruction and repair manuals, cookbooks, handbooks, guides, and other reference materials.ġ) Is Spiral Binding the same as Coil Binding? The Spiral Coil Binding method uses a spring-like coil to join the book's cover and pages as a unit, but allows them to turn freely.
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