Small Particles in Paper

  • Jan-Erik Otterstedt
  • Dale A. Brandreth


The word paper is derived from papyrus, a sheet made in ancient times by pressing together very thin strips of an Egyptian reed, cyperus papyrus. The modern material, paper, consists of sheet materials that are comprised of bonded, flexible, cellulose fibers which, while very short, 0.5–4 mm, are about 100 times as long as they are wide. Small particle fillers or pigments, in the form of clays or other inorganic materials are used to give paper improved properties, e.g. opacity, brightness and printability, or to improve the economics of the papermaking process. In this chapter we will focus on the use of small particles as process aids to improve retention and dewatering on paper machines.


Charge Neutralization Kraft Pulp Cationic Polymer Primary Particle Size Precipitate Calcium Carbonate 
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Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • Jan-Erik Otterstedt
    • 1
  • Dale A. Brandreth
    • 2
  1. 1.Chalmers University of TechnologyGothenburgSweden
  2. 2.Widener UniversityChesterUSA

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