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pulping    音标拼音: [p'ʌlpɪŋ]

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  • Pulp (paper) - Wikipedia
    Only the heartwood and sapwood are useful for making pulp Bark contains relatively few useful fibers and is removed and used as fuel to provide steam for use in the pulp mill Most pulping processes require that the wood be chipped and screened to provide uniform sized chips
  • Pulping Process - an overview | ScienceDirect Topics
    The primary purpose of pulping is to free the fibers from the lignin that binds the fibers together and or to separate the fibers in water Pulp with longer fibers and less lignin is considered to be of highest quality and produces the strongest paper
  • Mechanical pulping - Wikipedia
    Mechanical pulping is primarily used in paper products with relatively short life span, such as newspaper, books or brochures, but also in coated paper grades for magazines and catalogs It is also used as the middle layer in cardboard because of its stiffness
  • 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
  • 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 hybrid pulping (HP)
  • Wood Pulping Process: How Trees Become Paper Pulp
    The wood pulping process (also called the pulp making process or wood pulp process) is the unit operation that converts wood logs into a slurry of cellulose fibres used to make paper, paperboard, tissue and specialty grades
  • A review of the traditional pulping methods and the recent . . . - Springer
    Abstract The demand for paper and pulp-derived products to fulfill consumer needs is increasing considerably globally This work provides a critical overview of the various traditional pulping methods and describes the recent improvements in pulping processes
  • Chemical vs Mechanical Pulping: Complete Comparison
    In a pulp and paper mill, pulping is the unit operation that converts raw lignocellulosic material (typically softwood, hardwood, bagasse, wheat straw or recovered paper) into a slurry of individual fibres at a controlled freeness, pulp consistency, brightness and kappa number
  • Paper pulp | Definition Facts | Britannica
    Several major pulping processes were gradually developed that relieved the paper industry of dependency upon cotton and linen rags and made modern large-scale production possible





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