FIELD: paper and cardboard production in pulp-and-paper industry.
SUBSTANCE: method involves preparing cellulose suspension; flocculating and draining suspension on net for producing of paper web; drying paper web. Flocculation process is initially performed with the use of cation-active material, such as natural or synthetic polymer, followed by flocculation with the use of flocculant system including silicon-containing material and organic microparticles having diameter less than 750 nm in unswelled state.
EFFECT: improved draining, holding and forming process.
28 cl, 3 dwg, 12 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PAPER AND CARDBOARD MANUFACTURE PROCESS | 2000 |
|
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|
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| PRODUCTION OF PAPER OR CARDBOARD | 2008 |
|
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| PRODUCTION OF PAPER WITH FILLER | 2008 |
|
RU2431709C2 |
