Introduction of Chemi-machanical Pulp

Chemical mechanical pulp (English name chemi-machanical pulp) referred to as CMP, is the name of an intermediate product pulp in the paper manufacturing process, paper manufacturing is a complex process consisting of multiple processing. Manufacture of paper raw materials is a variety of fiber raw materials, such as wood, non-wood (such as straw, straw, bagasse, bamboo, cotton stalks, etc.), bast fibers (hemp, mulberry bark, berry bark, etc.), waste cotton (or cotton short staple) and other fibers. These fibrous raw materials first need to be chopped and boiled into pulp, due to the composition and chemical composition of these fiber materials are different, so there are different pulping process. Pulp manufacturing process is the use of chemical or mechanical methods, as well as a combination of both methods to make these fibrous raw materials in the fiber dissociation, and then purified or refined color pulp or bleached pulp. According to the pulping method can be divided into mechanical, chemical and chemical mechanical method. Chemical mechanical pulping method of semi-chemical method, chemical mechanical method and chemical thermal grinding mechanical method. According to the type of raw materials, pulping process, pulp yield can be categorized pulp. Chemical-mechanical pulp (chemi-mechanical pulp, CMP) include: A chemical thermal grinding mechanical pulp (chemi-thermo-mechanical pulp CTMP); B ordinary chemical mechanical pulp (chemi-mechanical pulp CMP); chemical treatment conditions are mild, the pulp retains the raw material in more The chemical treatment conditions are mild, the pulp retains more lignin content in the raw material, and the pure pulp yield can be as high as 85% to 90%. Chemical mechanical pulp made from broadleaf wood, its properties and coniferous wood grinding wood pulp is similar, high tightness of paper, low opacity, long fiber content, fiber bundles, good printability. Can be copied newsprint, printing paper and cardboard.