Paper making and fiber liberation – Processes and products – Non-fiber additive
Patent
1998-02-17
1999-08-24
Chin, Peter
Paper making and fiber liberation
Processes and products
Non-fiber additive
162190, 162183, 1621818, D21F 1100, D21F 166, D21H 1100
Patent
active
059420871
ABSTRACT:
A process for manufacturing paper and paperboard that includes the steps of preflocculating granular starch with an aqueous solution containing cellulosic fibers and a flocculant prior to the introduction of the preflocculated mixture to either the white water, thick stock or thin stock. By preflocculating the starch in the presence of cellulosic fibers, improved formation is provided without compromising retention of the starch in the formed mat and distribution of the starch in the Z-direction is improved which improves the strength properties of the paper and paperboard.
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Pulp and Paper Manufacture v3. Papermaking and Paperboard Making, Ronald G. MacDonald, Mar. 28, 1973.
Chin Peter
Cronin Kevin
Nalco Chemical Company
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