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- Pulping refers to the process wherein wood or other fibrous raw materials are reduced to a fibrous mass, the purpose being to separate the cellulosic wood fibers by breaking down the wood's inter-cellular lignin glue, without damaging them so that they can then be reformed into a paper sheet in the papermaking process.
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Pulping is a process of converting lignocellulosic materials into pulp. Pulp is an intermediate material applied in papermaking. There are huge numbers of technologies of pulping methods that can be generally divided into three categories: mechanical (MP), chemical (CP), and hybrid pulping (HP).
- Chemical Pulping
John N. Saddler, in Bioresource Technology, 2020. 2.1...
- Kraft Process
Lignin Separation and Fractionation by Ultrafiltration....
- Mechanical Pulp
Mechanical pulping accounts for about 25% of the wood pulp...
- Pulping Process
Pulping is the process of breaking down paper (or wood) into...
- Chemical Pulping
Pulp is a fibrous lignocellulosic material prepared by chemically, semi-chemically or mechanically producing cellulosic fibers from wood, fiber crops, waste paper, or rags. Mixed with water and other chemicals or plant-based additives, pulp is the major raw material used in papermaking and the industrial production of other paper products. [1][2]
Sep 23, 2024 · Pulping is the process of using chemical or mechanical methods, or a combination of both, to dissociate plant fiber raw materials into natural pulp (unbleached pulp) or bleached pulp. The main function of pulping is to provide high-quality pulp for papermaking and other fiber processing industries.
Paper pulp, raw material for paper manufacture that contains vegetable, mineral, or man-made fibers. It forms a matted or felted sheet on a screen when moisture is removed. Except for certain special papers (such as asbestos paper), nearly all papers are made of cellulosic (vegetable) fibers.
- The Editors of Encyclopaedia Britannica
Pulping is the process of breaking down paper (or wood) into individual fibers with the help of an elevated temperature (40–55 °C), alkaline pH (9.0–10.5), and mechanical force. During the pulping process of MSW paper, fibers flex, bend, and rub against one another to promote ink removal.
May 1, 2020 · In this paper, we present a review of pulping technologies to convert logs or wood chips and non-woody materials into pulp for use in papermaking which consist of mechanical, chemical and semi-mechanical.
Papermaking - Pulping, Refining, Bleaching: Mechanical or groundwood pulp is made by subjecting wood to an abrading action, either by pressing the wood against a revolving grinding stone or by passing chips through a mill. The wood fibres are separated and, to a considerable degree, fragmented.
