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    Author(s): Marguerite Sykes; John Klungness; Freya Tan; Mathew Stroika; Said Abubakr
    Date: 1999
    Source: Proceedings of the China Paper Conference : Nov. 9-10, 1999, Beijing, China. Atlanta, GA : TAPPI Press, 1999: [6] p.
    Publication Series: Miscellaneous Publication
    PDF: Download Publication  (119 KB)


    Production of a lightweight, high opacity printing paper is a common goal of papermakers using virgin or recycled fibers. Fiber loading is an innovative, commercially viable process that can substantially upgrade and extend most types of wood fibers. Fiber loading, a process carried out at high consistency and high alkalinity, precipitates calcium carbonate (PCC) in situ within pulp fibers. Because paper made from fiber-loaded pulp is stronger than that made by the conventional addition of PCC, it is an ideal technology for producing a reduced basis-weight paper from virgin and recycled high-yield pulps. This paper summarizes the fiber-loading technology and illistrates how it can be applied on a typical recycled newsprint and thermomechanical pulp (IMP) furnish to produce light-weight paper without compromising strength or optical properties. Economic, environmental, and energy advantages of the fiber-loading technology for producing lightweight, high opacity paper are projected for a hypothetical huge capacity U.S. newsprint mill.

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Sykes, Marguerite; Klungness, John; Tan, Freya; Stroika, Mathew; Abubakr, Said. 1999. Extending fiber resources : fiber loading recycled fiber and mechanical pulps for lightweight, high opacity paper. Proceedings of the China Paper Conference : Nov. 9-10, 1999, Beijing, China. Atlanta, GA : TAPPI Press, 1999: [6] p.


    Fiber resources, fiber loading, mechanical pulping, lightweight paper, high opacity paper

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