Papermaking Principles and Engineering

2.Continuous pulping equipment Continuous pulping is the development direction of pulping equipment. Compared with intermittent pulping machines, its advantages are: high pulping e

Grinding Equipment The pulping equipment can be classified into two major types: intermittent and continuous. The intermittent type mainly consists of trough-type pulping machines,

(2).Fiber Wet Weight Method This is a rapid method suitable for production for measuring the length of fibers. It is based on the principle that the longer the fiber, the more fibe

Pulp Quality Inspection In order to monitor the changes of the slurry during the pulping process and control the quality of the pulp, it is necessary to conduct a pulping quality i

Pulping Process Flow Continuous pulping is the development direction of pulping equipment. The intermittent pulping method is rarely used now. Currently, most paper mills have adop

Wet Beating of Straw Pulp Wet beating of straw pulp refers to the beating process for straw pulp used in thin paper production, which requires a high beating degree and high paper

Free-flowing straw pulp pulping Free-form pulping of straw pulp refers to the use of straw pulp for general cultural paper pulping. The strength requirements for general cultural p

Chemical pulping of straw The characteristics of pulping with grass pulp The chemical composition, fiber morphology and structure of grass-based raw materials and wood-based raw ma

Chemical pulping of wood fibers 1.Pulping of coniferous wood pulp and broad-leaved wood pulp Wood fibers are generally divided into two major categories: coniferous wood and broad-

6.The influence of pH and additives on pulping The pH value of the pulping process mainly depends on the quality of the water used and the washing condition of the pulp. In actual

5 The influence of paper material types and compositions Different types of fiber raw materials, after being processed by various pulping methods, have different physical propertie

4. Pulping Temperature During the pulping process, due to the friction between fibers and fibers, as well as between fibers and the grinding discs, frictional heat is generated, ca