Perfect binding (PUR)
Perfect binding or soft cover binding is the process where flat sheets or signatures are secured together solely with adhesive. The adhesive is applied directly to the spine of the book which means no stitching required.
- 3mm to 50mm spine
- Small runs (from as low as 1 copy)
- Add lamination to cover
Polyurethane reactive glue is the most durable binding glue available, offering design flexibility for any number of applications, including brochures, catalogues, and art books.
PUR allows us to successfully bind materials which would not have previously been attempted using conventional EVA (Ethylene Vinyl Acetate) hot melts.
PUR adhesives cure by crosslinking via a chemical reaction with moisture contained in the paper stock or surrounding air. Once cured, the adhesive's higher molecular weight provides a tough, pliable bond.