Papermaking process

Details Papermaking process Papermaking process

D - Textiles, Paper

21

H

D21H 17/42 (2006.01) D21H 17/45 (2006.01) D21H 17/66 (2006.01) D21H 17/67 (2006.01) D21H 23/14 (2006.01)

Patent

CA 2079090

In a papermaking process a paper product is formed from a mineral filler containing cellulosic slurry. Retention performance is provided by the sequential addition of a cationic charge-biasing species, an anionic flocculant, and then a certain microparticle. A shear stage is interposed between the flocculant addition and the microparticle addition. The microparticle is a inorganic, cationic source of aluminum.

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