Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste
Patent
1979-11-07
1981-01-13
Chin, Peter
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Waste paper or textile waste
162 67, 162 87, D21C 502
Patent
active
042447771
ABSTRACT:
Chlorine dioxide is a specific bleaching agent for stilbene yellow dye which has been used to dye paper stock. Chlorine dioxide may be used in amounts as low as 0.25% based on the oven dry weight of the pulp fiber.
REFERENCES:
patent: 2580161 (1951-12-01), Driesen
patent: 3238008 (1966-03-01), Litke
patent: 3377235 (1968-04-01), Webster et al.
Chin Peter
Weyerhaeuser Company
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