Method for producing improved high-yield pulps

Details Method for producing improved high-yield pulps Method for producing improved high-yield pulps

D - Textiles, Paper

21

D

9/39, 92/62

D21D 5/02 (2006.01)

Patent

CA 1251904

16-278 A METHOD FOR PRODUCING IMPROVED HIGH-YIELD PULPS ABSTRACT OF THE DISCLOSURE Improved chemimechanical, particularly chemithermo- mechanical,pulp (CTMP), is produced by defibrating or refining wood chips to produce pulp, and then screening the pulp and separating out at least 30% by weight of the incoming fiber suspension as a first long-fiber fraction,and also separating out a first fine-fiber fraction, screening the first fine fiber fraction a second time,and separating out a second long-fiber fraction which is combined with the first long-fiber fraction to form a long-fiber fraction of improved properties, and a second fine-fiber fraction of improved properties.

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