Paper making and fiber liberation – Processes and products – Plural fiber containing
Patent
1985-02-20
1986-08-26
Chin, Peter
Paper making and fiber liberation
Processes and products
Plural fiber containing
162199, 162DIG4, D21H 512
Patent
active
046081232
ABSTRACT:
Disclosed is a method of minimizing the untoward effect of contaminants, such as pitch and related materials, in the papermaking operation. An aqueous dispersion of water-dispersible synthetic pulp, such as polypolyolefin pulp, is added to a pulp slurry comprised of cellulosic pulp, at a point prior to sheet formation. The synthetic pulp adsorbs a substantial amount of the pitch present in the pump slurry and prevents it from depositing on the papermaking apparatus.
REFERENCES:
patent: 3147216 (1964-09-01), Oemler
patent: 3992249 (1976-11-01), Farley
patent: 4154646 (1979-05-01), Rave
patent: 4196305 (1980-04-01), Murphy et al.
patent: 4276179 (1981-06-01), Soehngen
Chin Peter
Hercules Incorporated
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