White clay mass primarily composed of the clay mineral, kaolinite. In refined form, it is used as a coating filler, and as an opacifying agent for papermaking. Its important properties are plasticity when wet and hardening when baked or fired. Kaolin retains its whiteness after firing.

Called mortising in hot metal typesetting. Kerning is really width modification. In the process, characters are brought closer together in the interest of aesthetics. When the instructions to operators read "kern 2 units" the system subtracts those units from the width.

Positioning of art copy in dummy by means of symbols, usually numbers.

The plate in a set of four color plates that carries the most detail to which other plates are registered.

An index or bristol finished to resemble kid leather.

Printing performed with only slight pressure. The normal procedure for quality printing.

A coating applied to a web of paper by a doctor blade or knife which spreads the coating evenly across the web.

The German and Swedish word for "strong". Used in reference to sulphate pulp because of its relative strength.

Although almost all chemical wood pulp papers in the United States are made by the sulphate (kraft) process, this term is generally used in reference to packaging and industrial papers.

See sulphate pulp.