High temperature low consistency refining of...

Details High temperature low consistency refining of... High temperature low consistency refining of...

D - Textiles, Paper

21

D

92/43

D21D 1/30 (2006.01) D21D 1/20 (2006.01)

Patent

CA 1070536

ABSTRACT OF THE DISCLOSURE A method of post-refining a thermo-mechanical pulp fiber suspension to reduce the high bulk characteristic of thermo- mechanical pulps and improve the paper quality made from such pulps. The pulp fiber suspension having a consistency of about 3 to 5% is refined at a temperature of 200 to 300°F under low intensity conditions. Optimum pulp development is thus obtained by using the lowest practical intensity at the highest practical operating tempera- ture. -i-

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