Perfect binding uses ethylene vinyl acetate (EVA) adhesives and is a cost effective way to bind books over 72 pages. The glue is however affected by alternating hot and cold weather and pages may fall out with repetitive usage.
Insertion of staples into the spine of folded booklets. The spine is often called the saddle – hence the term. The term may also refer to thread stitched booklets. This is the most common method of binding as well as the most cost effective.
Similar to perfect binding yet stronger. Suitable for long term usage as section are sewn together with thread – making books more durable than the basic perfect bond. The book will withstand being flattened open better than a perfect bind book, however will never have the same strength and lifespan as PUR bind books.
PUR binding uses polyurethane reactive (PUR) adhesives and offers superior adhesion when compared to conventional Perfect binding methods. This enables the open book to lie flat without the risk of pages coming loose and compromising the strength of books.The polar nature of the polyurethane molecule allows it to adhere to UV-cured coatings, films, as well as to traditional un-coated and clay-coated papers. This is the strongest of strong. PUR requires miniscule amounts of adhesive over perfect binding which means that you can achieve a square spine on even the thinnest of books. PUR glue is more durable and flexible than EVA glue and, once the glue has set, it is almost impossible to tear a page out of a PUR-bound book.
Wiro binding is known by a number of different names including twin loop wire, wire-o, double loop wire, double-o, ring wire and wirebind. With this binding method, users insert their drilled or punched pages onto a “C” shaped spine and then use a wire closer or binder to squeeze the spine until it is round. Wiro bind documents will open completely flat on a surface and allow for 360 degree rotation of bound pages. Expensive for big runs, more suited to smaller digital runs. The wire may be metal or plastic (various colours) and varies in mm width to suit number of pages to bind.