Method and apparatus for measuring fiber properties
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United States of America Patent
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-
Oct 19, 2004
Grant Date -
Aug 29, 2002
app pub date -
Dec 17, 2001
filing date -
Dec 21, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a fluorescence microscopy technique for measuring physical and chemical properties of individual fiber-like particles. Fluorescence intensity per unit length is shown to be proportional to the fiber coarseness. In addition, other fiber properties such as fiber length, width and wall thickness can be obtained from fluorescence images, and lignin content from fluorescence spectra. The present invention will provide a process for determining the uniformity of pulp samples in terms of the physical and chemical properties of the individual fiber-like particles, particularly wood pulp fibers.
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