Process for producing a mechanical pulp of improved linting properties by screening the pulp to provide a through and a retained fraction, fractionating the through fraction by means of a hydrocyclone into at least two fractions one fraction having an average specific surface less than a predetermined...http://www.google.fr/patents/US4292122?utm_source=gb-gplus-shareBrevet US4292122 - Bonding properties of mechanical pulps
