Method for producing a delignified papermaking fiber from...

Details Method for producing a delignified papermaking fiber from... Method for producing a delignified papermaking fiber from...

D - Textiles, Paper

21

C

D21C 5/02 (2006.01) D21B 1/00 (2006.01) D21B 1/32 (2006.01) D21C 3/00 (2006.01) D21D 5/00 (2006.01) D21H 11/14 (2006.01) D21H 19/20 (2006.01) D21H 27/16 (2006.01) D21H 19/40 (2006.01) D21H 25/10 (2006.01)

Patent

CA 2093260

A method is disclosed for producing, in a continuous throughput, high quality paper from recycled waste paper utilizing high consistency, low shear pulping, followed by a series of cleaning steps to produce a wet, friable pulp which is digested arid optionally bleached. The resulting pulp can be run on a paper machine alone or blended with virgin pulp to produce a paper containing at least 5% by weight recycled paper with less than 20 ppm per unit area solid non-fibrous contaminants larger than 0.3 mm2, and which may be blade coated on a high speed paper machine.

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