Paper making and fiber liberation – Processes and products – Non-fiber additive
Patent
1997-02-12
1999-11-02
Chin, Peter
Paper making and fiber liberation
Processes and products
Non-fiber additive
1621812, 1621813, 1621814, 1621815, 162183, D21H 1774
Patent
active
059763221
ABSTRACT:
Process for producing paper and paperboard, which comprises adding to a cellulose pulp stock a natural starch and an aluminum and/or iron salt. The so obtained cellulose pulp stock is then submitted to dewatering and subsequent calendering according to conventional techniques. In such a way, retention of the natural starch on the cellulose fibers is remarkably increased. To further increase retention it is particularly advantageous to pre-mix the natural starch with the aluminum and/or iron salt and then to add the resulting mixture to the cellulose pulp stock.
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Ausimont SPA
Chin Peter
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