Method and apparatus for the splitting of cellulosic fibers, methods for the treatment of fibrous pulps for a papermaking process, methods for paper drying and paper products with split fibers
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United States of America Patent
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Feb 24, 2015
Grant Date -
Jan 2, 2014
app pub date -
Dec 16, 2011
filing date -
Dec 16, 2010
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Abstract
A method of splitting hollow cellulosic fibers employs the steps of wetting the fibers, feeding the wet fibers to a gaseous flow, and conducting the gaseous flow carrying the fibers through a venturi tube, the pressure drop in the venturi tube throat bringing a pressure difference between liquid inside the fibers and gas outside of the fibers and causing the fibers to split in their longitudinal direction, to open the lumen inside the fibers.
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