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How Much Do You Know About Paper Manufacturing Process

History of Paper Manufacturing Process Formed from wood pulp or plant fiber, the paper is chiefly used for written communication. The earliest paper was papyrus, made from reeds by the ancient Egyptians. Chinese paper was invented in the second century, probably by a Chinese court official named Cailun. His paper was made from tree barks

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The use of recycled fiber

The Notices on the Use of Recycled Fiber

The Notices on the Use of Recycled Fiber Wood is the main raw material for papermaking. However, with the decrease of forest resources and the increase of human demand, the wood problem has become more and more serious. To solve the dilemma from the lack of raw materials, the utilization of waste paper and fully

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the process flow category and application of paper pulp

Paper Pulp Category and Application

The Category, Application and Property Index of Paper Pulp Paper pulp is the basic raw material of paper making. It is processed and manufactured by paper pulper. The materials used for paper pulp making can be divided into four kinds: stem fiber, bast fiber, hull fiber and wood fiber, in which wood fiber is the

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Dissolving Pulp Digester

Production Process of Dissolving Pulp

Production Process of Dissolving Pulp There are two kinds of production processes of dissolving pulp: sulfate pre-hydrolysis process and sulfite process. Generally, the acid sulfite process can be applied to low content hemi-cellulose of raw material; for high content resin of raw material, the sulfate pre-hydrolysis process must be adopted. Compared to two processes, the

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How do Paper Making Machines work?

How do Paper Making Machines work?

In the process of papermaking, we need paper making machines, drum pulper, paper digester, pulp washer and so on. What’s the working principle of these paper making machines? Dehydration mechanism and characteristics of the table Water mechanism: water attached to copper screen is first scrapped out by front horn. When the copper screen slides over

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vacuum drum washer

Technical principles of oxidation bleaching of hydrogen peroxide (H2O2)

According to different properties and action principals of pulp bleaching agents, the bleaching can be divided into two types: one is oxidation bleaching; the other is reduction bleaching. Oxidation bleaching agent can further remove the residue of lignin and other impurities as well as colored substances, which can not only improve the whiteness and purity

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