Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste
Patent
1993-03-03
1994-08-16
Hastings, Karen M.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Waste paper or textile waste
D21C 502, D21C 9147
Patent
active
053384016
ABSTRACT:
A method is disclosed for the detackification of stickies in the production of recycled paper products containing secondary fibers. Oxygen is used to reduce the tackiness of stickies in secondary pulps, and optionally is used with alkali and/or detackification agents for optimum stickies control.
REFERENCES:
patent: 4416727 (1983-11-01), Elton et al.
patent: 4710267 (1987-12-01), Elsby et al.
patent: 4886575 (1989-12-01), Moreland
Casey "Pulp and Paper Chemistry & Chemical Technology" vol. III 1981 pp. 1614-1617.
Ruvo, et al; "Upgrading of Pulp from Corrugated Containers by Oxygen Delignification"; Tappi Journal; Jun. 1986.
Miller, P. C.; "Chemical Treatment Programs for Stickies Control"; 1988 Pulping Conference.
Markham, et al; "Oxygen Bleaching of Secondary Fiber Grades"; Tappi Journal; Dec. 1988.
Hristofas Konstantinos
Magnotta Vincent L.
Naddeo Ronald C.
Air Products and Chemicals Inc.
Fernbacher John M.
Hastings Karen M.
Marsh William F.
Simmons James C.
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