Seek some explanation of paper pulping

These terms inside the wheatgrass ah, cotton stalks ah, poplar ah refers to the pulp of plant fiber raw materials, and semi-chemical pulp, chemical pulp refers to the method of pulping.

The traditional chemical pulp is to add drugs cooking fiber and lignin separation process, semi-chemical pulp, as the name implies, that is to say, the chemical method of pulping, but the pulping process fiber and lignin is not completely separated, that is, after pulping pulp lignin content is high; this method of pulping fiber degradation of the lighter, and therefore the rate of higher than the chemical method of pulping. Bleached wheatgrass pulp refers to the use of bleaching agents (usually using hydrogen peroxide or hypochlorite, oxygen bleaching and other methods) to deal with lignin fragments in the pulp in the coloring groups, increase the whiteness of the pulp.

Chemical-organic pulp refers to the mechanical pulp pre-treated with chemicals (mostly impregnation), which means that the wood chips are soaked first, and then the fibers in the raw material are mechanically dissociated.