Method of producing high bulking anfractuous cellulosic fiber using anhydrous liquid ammonia
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United States of America Patent
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Sep 26, 1989
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N/A
app pub date -
Feb 12, 1988
filing date -
Feb 12, 1988
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Expired
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Abstract
Anfractuous cellulose fibers exhibiting exceptional high bulking properties are produced by treatment of dry hammermilled wood cellulose fibers with anhydrous liquid ammonia at substantially atmospheric pressure. Fibrous webs of enhanced bulk are produced by preparing an aqueous furnish comprising at least ten percent by weight ammonia treated anfractuous fibers in admixture with conventional papermaking fibers.
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