Wood pulp fiber process and resultant products

Details Wood pulp fiber process and resultant products Wood pulp fiber process and resultant products

1982-01-08

1983-11-01

Smith, William F.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Freezing

162207, D21C 900

Patent

active

044128886

ABSTRACT:
The present invention relates to a novel cellulosic wood pulp fiber having lower specific volume for a given surface area than conventionally prepared wood pulp fibers, to products made therefrom, and to the process of making such fiber comprising hydrating cellulosic wood pulp fiber to a freeness of at least about 650 CSF and lower, freezing the fibers while in an aqueous slurry containing at least 40% water to a fiber temperature of at least -5.degree. C. or below, and thawing the pulp fibers to a temperature at which they will flow.

REFERENCES:
patent: 1859891 (1932-05-01), Richter
patent: 3987691 (1976-10-01), Lee
Chemical Abstracts, 1941 23-Cellulose & Paper Col. 4949, 4950.
ABIPC, vol. 46, No. 1, (7/75) #332.
ABIPC, vol. 42, No. 3, (1972) #2345.

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