Pulp is the main source for paper making. It is produce at pulp mill. After production paper pulp is supplied to paper mill for paper making.
Wood is the most widely used raw material for paper pulp. Without wood there are some other things are used for pulp making that are cotton, linen, bombax wool, jute hemp, sisal hemp, Manila hemp, straw, esparto, Pineapple leaf fiber, palm, coconut fiber, sugar cane, Bamboo etc.
Classification of pulp wood
Coniferous or Soft wood trees: spruce, pine, fir (balsam), larch, tamarack, cypress, Douglas fir, hemlock etc.
Broad leaf or hard wood trees: eucalyptus, aspen, maple, Poplar, Tulip, Basswood, birch etc.
Where softwood trees produce long fiber and hard wood produce short fiber.
Fully chemical methods (Kraft and sulfite processes)
The finished product may be either bleached or non-bleached. Bleached pulp used to produce a white paper product.