Pulp (paper) - Wikipedia
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]
Pulping Process - an overview | ScienceDirect Topics
Pulping is the process where fibers are separated and treated to produce pulp. The wet pulp is then converted into paper at an integrated pulp and paper mill or is dried and transported from the pulp mill to a paper mill. Different pulping processes are used depending on the fiber material and the desired end product.
Pulping - an overview | ScienceDirect Topics
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 …
Kraft process - Wikipedia
The kraft process (also known as kraft pulping or sulfate process) is a process for conversion of wood into wood pulp, which consists of almost pure cellulose fibres, the main component of paper. The kraft process involves treatment of wood chips with a hot mixture of water, sodium hydroxide (NaOH), and sodium sulfide (Na 2 S), known as white ...
Pulp and paper are made from cellulosic fibers (i.e., fibers from trees) and other plant materials, although some synthetic materials may be used to impart special qualities to the finished product. Most paper is made from wood fibers, but rags, flax, cotton linters, and bagasse (sugar cane residues) are also used in some papers.
A review of the traditional pulping methods and the recent …
Pulping involves the use of chemical, mechanical methods, and/or biological methods to rupture bonds of woody materials and separate the cellulose fibers from lignin [9]. Mechanical pulping encompasses refining, grinding, mechanical shearing, and disintegration of …
Pulping - an overview | ScienceDirect Topics
Pulping refers to different processes to convert wood or other fibrous feedstocks into a product mass of liberated fibers by releasing lignin that binds the cellulosic fibers together. 1–8 This conversion can be accomplished either chemically
There are four broad categories of pulping processes: chemicaly semi-chemical, chemi-me-chanical, and mechanical pulping. These are in order of increasing mechanical energy required to separate fibers (fiberation) and decreasing reliance on chemical action.
Development of Raw Materials and Technology for Pulping—A
2023年11月20日 · Pulping is a key step in the conversion of fiber raw materials into paper. Since its inception, pulping has rapidly evolved, continually adapting to technological advancements. Researchers are constantly investigating various types of raw materials for pulping.
Papermaking - Pulping, Refining, Bleaching | Britannica
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.