Papermaking, formation of a matted or felted sheet, usually of cellulose fibers, from water suspension on a wire screen. Paper is the basic material used for written communication and the dissemination of …

Papermaking - Machines, Formation, Sheet: In a paper machine, interrelated mechanisms operating in unison receive paper stock from the beater, form it into a sheet of the desired weight by filtration, …

Dec 10, 2025 · Paper, matted or felted sheet, usually of cellulose fibers, formed on a wire screen from water suspension. Although wood has become the major source of fiber for papermaking, rag fibers …

Papermaking - Pulping, Refining, Bleaching: Mechanical or groundwood pulp is made by subjecting wood to an abrading action, either by pressing the wood against a revolving grinding stone or by …

Kraft process, (from German kraft, “strong”), chemical method for the production of wood pulp that employs a solution of caustic soda and sodium sulfide as the liquor in which the pulpwood is cooked …

Papermaking - Bleaching, Washing, Drying: The use of calcium and sodium hypochlorites to bleach paper stock dates from the beginning of the 19th century. In the early days of sulfite pulp …

The particular chemical included in the liquor depends on the wood species and the paper product required. Because this process does not completely dissolve undesired substances in the pulp, …

The paper making process is a fairly closed loop system, where almost all of the materials used can be recycled and reused. Tree bark and other wood waste is used in boilers at the mill to create steam to …

Jan 1, 2026 · Cai Lun, Chinese court official who is traditionally credited with the invention of paper. About the year 105 he conceived of the idea of forming sheets of paper from the macerated bark of …

The papermaking process begins with sending logs (1) through a barker (2), and grinding them into chips (3). The chips move through a screen (4) and are mixed with chemicals before being fed by a …