What material is the paper made of?
At present, the main raw material of papermaking in the world is plant fiber, and some coniferous wood or broad-leaved wood used in some developed countries account for more than 95% of the total amount.
There are two kinds of raw materials in papermaking: plant fiber and non plant fiber (inorganic fiber, chemical fiber, metal fiber).
There are many kinds of plant fiber materials in our country, and they are divided into six categories:Coniferous wood, such as larch, pine, masson pine, Yunnan pine, Scotch pine and so on;Two are broad-leaved tree wood, such as poplar, birch, eucalyptus and so on;Three is a species of grass: such as reed, bamboo, straw, straw, straw, grass, sorghum stalk, bagasse and other eulaliopsisbinata;Four is the bast fiber, flax, jute, kenaf, Tan bark, mulberry bark, etc.;Five is a kind of wool fibers, such as cotton, cotton linter, cotton rags;Six is the waste paper fiber, according to China's customs designated as a waste paper (without printing from the factory or the relevant units to pick the white edge, broken paper, etc. (two) paper after old book, newspaper printing, etc.) three (in addition to all the waste paper waste paper, the above two kinds of old paper board the broken carton, etc.).
