Paper

Pulp is a fibrous lignocellulosic material prepared by chemically, semi-chemically or mechanically producing cellulosic fibers from wood, fiber crops, waste paper, or rags.

Method: To make chemically separated pulp, wood chips are cooked at high temperatures in a mixture of water, sodium hydroxide (NaOH), and sodium sulfide (Na2S), a process that breaks it down to a pulp.

To make mechanically separated pulp, heated wood chips are grinded rather than cooked to separate the fibers.

Applications: textile and cellophane production, diapers, feminine hygiene products and nonwovens.