Treating chemically delignified and fiberized cellulosic...

Details Treating chemically delignified and fiberized cellulosic... Treating chemically delignified and fiberized cellulosic...

D - Textiles, Paper

21

D

92/34, 92/43

D21D 1/20 (2006.01)

Patent

CA 1089273

ABSTRACT OF THE DISCLOSURE Chemically delignified and fiberized cellulosic pulp having a TAPPI K number of from O to 30 is mechanically refined at a con- sistency of from 10 to 50% by weight, at a steam pressure of from 10 to 60 psig, and at corresponding temperatures for saturated steam under conditions resulting in an energy input into the pulp of from 0.5 to 10 net horsepower days per ton. The resulting tr- eated pulp has significantly improved properties of tear, elonga- tion, bond, and tensile energy absorption, while maintaining its other paper-making properties at high and commercially acceptable levels.

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