Used for numerous purposes in bookbinding, particularly for lining backbones strong, this paper is hard, rough-surfaced, and heavily sized. Originally used for the making of gun cartridges, hence the name cartridge paper.
Coated or uncoated printing and writing paper usually with a slightly rough surface. It is used in a variety of graphic end-uses, including envelopes, which require good dimensional stability, opacity and bulk. Cartridge paper gets its name from its original use which was to form the tube of a shotgun cartridge.