Page:Paper and Its Uses.djvu/140

124 preparation of wood pulp. Reduction to fibrous state is accomplished by the edge runner, drawing the fibres out, thus retaining the length and strength. Kraft papers are smooth, light brown in colour, strong and flexible, and are used for wrappings where these qualities are required.

Lithographic Papers.—Papers for lithographers' general use, with good super-calendered surface, frequently soft-sized, the manufacture so arranged as to reduce the amount of stretch to a minimum. The best qualities