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In bulk applications, a paper drilling machine may be used. Then the user chooses a spine size that will match the document. Standard sizes are 4.8 mm (3 ⁄ 16 in) (for 16 sheets of 20# paper) up to 51 mm (2 in) (for 425 sheets). Spine lengths are generally 280 mm (11 in) to match the length of letter-size paper.
Three ring binder sprung clip mechanism. Japan uses a unique system, referred to as J-Binder. This system is compatible with A4 and B5 paper with different products. The A4 version uses 30 closely spaced rings, while the B5 one uses 26. Less common variants such as a 20 ring A5 version also exist. [6] Personal organizer with metallic ring binder
The most common use for multi-hole punched paper is with a ring binder. A book-like cover is fitted with retaining rings matching the pattern of the punched holes. The rings may be split open, paper sheets threaded onto them, and then the rings closed again. A variety of hole patterns are in use for ring bindings.
Wire binding is a popular commercial book binding method, and is known by various names, including double loop wire, double-o, ring wire, twin loop wire, wire comb, wire-o, wirebind and wiro. With this binding method, users insert their punched pages onto a C-shaped spine , and then use a wire closer to squeeze the spine until it is round. [ 1 ]
In the United States, comb binding is often referred to as 19-ring binding because it uses a total of 19 holes along the 11-inch side of a sheet of paper. VeloBind is used to permanently rivet pages together using a plastic strip on the front and back of the document.
But if the paper of the volume is too fragile, or the book block is too thick, the spine is left flat. The book block is placed in a sturdy cover or case, with special paper covering the inside covers. [1] The most common cloth used by library binders to cover the boards of the book is buckram coated with acrylic. Acrylic coatings are generally ...
The process takes only a few seconds, and the finished bound book is like a book with hard cover. Typical paper sizes are A4 and A5, or their equivalent, the maximum stack height is usually 2 cm. In contrast to other binding methods, the binder can be reused by simply removing the old inner book block and replacing it by a new one.
The standard defines the "A", "B" and "C" series of paper sizes, which includes the A4, the most commonly available paper size worldwide. Two supplementary standards, ISO 217 and ISO 269 , define related paper sizes; the ISO 269 " C " series is commonly listed alongside the A and B sizes.
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