FIELD: paper industry.
SUBSTANCE: paper with improved rigidity and bulk and method of its manufacturing may be used in pulp and paper industry and are intended for photocopier equipment. Paper comprises three-layer double-tee structure that forms a single web. It has central core layer manufactured mainly from cellulose, bulk of which is increased with the help of filler, such as hydrazine salt. Starch-based coating is applied on both sides of core layer, at the same time starch has high content of solid products. Coating forms three-layer paper having composite structure with outer layers of high strength that surround core of low density.
EFFECT: improved strength, rigidity and resistance to twisting of produced material.
32 cl, 2 dwg, 3 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
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RU2330911C2 |
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| METHOD FOR MANUFACTURE OF SIZED PAPER OR BOARD | 2002 |
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RU2422574C1 |
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|
RU2621113C2 |
| PAPER FILLER | 2004 |
|
RU2345189C2 |
