PULP AND PAPER DICTIONARY

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XEROGRAPHY           The printing process used by photocopying machines. Electric charge creates the image on an eloctro-photographic surface that works as a plate. This surface is cleared after each copy is made, and used over again for the next copy. For detailed characteristics paper requirement of Xerographic Machine, please visit Paper Needs of Xerographic Machines (A Summary) by Chuck Green

XYLAN                         A type of hemi-cellulose in wood. Yellow, water-soluble, gummy polysaccharide found in plant (e.g. hardwood or cereal straws) cell walls; main structural components are xylose and other pentoses; yields xylose and other pentoses upon hydrolysis.

XYLANASE                  Enzyme used for hydrolysis of xylan in pulp bleaching.

XYLEM                           Part of a tree between the bark and the pith which forms the mechanical structure that constitutes the wood from which the fibre is obtained for use in pulp and papermaking