wood pulp
| Wood that has been processed into a pulpy mass of fibres. Its main use is for making paper, but it is also used in making rayon and other cellulose fibres and plastics. |
| There are two methods of making wood pulp: mechanical and chemical. In the former, debarked logs are ground with water (to prevent charring) by rotating grindstones; the wood fibres are physically torn apart. In the latter, log chips are digested with chemicals (such as sodium sulphite). The chemicals dissolve the material holding the fibres together. |
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