Method of producing high bulking anfractuous cellulosic fiber us

Details Method of producing high bulking anfractuous cellulosic fiber us Method of producing high bulking anfractuous cellulosic fiber us

1988-02-12

1989-09-26

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With chemical or physical modification of liberated fiber

162 24, 162 70, 162 71, D21C 900

Patent

active

048697826

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.

REFERENCES:
patent: 3707436 (1972-12-01), O'Connor
patent: 4227964 (1980-10-01), Kerr et al.
patent: 4488932 (1984-12-01), Eber
Perry's Chemical Engineers' Handbook, Perry et al., pp. 3-5 and 3-43; McGraw-Hill, N.Y. 1963.

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