FIELD: pulp-and-paper industry, in particular paper or board production.
SUBSTANCE: claimed method includes providing of slurry containing cellulose fiber and at least sizing agent interacting with cellulose. Sizing agent is selected from group containing ketene dimmers and acid anhydrides. Cationic vinyl polymer obtained by additional polymerization, containing aromatic units and anionic vinyl polymer obtained by additional polymerization and having molecular mass from 6000-100000 are introduced into slurry. Then obtained slurry is dehydrated and paper leaf is formed.
EFFECT: increased effectiveness of sizing, dehydration and retention.
11 cl, 3 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CELLULOSE PRODUCT, METHOD OF ITS PRODUCTION AND APPLICATION | 2007 |
|
RU2422573C2 |
| PAPER SIZING | 1998 |
|
RU2177521C2 |
| CELLULOSE PRODUCT AND A METHOD FOR PREPARATION THEREOF | 2003 |
|
RU2300597C2 |
| AQUEOUS SILICON-CONTAINING COMPOSITION AND PAPER MAKING PROCESS | 2002 |
|
RU2274692C2 |
| METHOD FOR PRODUCTION OF PAPER AND CARDBOARD | 2012 |
|
RU2601465C2 |
| PAPER MANUFACTURING PROCESS | 1999 |
|
RU2194106C2 |
| PACKING LAMINATE | 2007 |
|
RU2455169C2 |
| PAPERMAKING PROCESS | 2001 |
|
RU2244776C2 |
| PAPER MANUFACTURE PROCESS | 1999 |
|
RU2194818C2 |
| AQUEOUS DISPERSIONS OF HYDROPHOBIC MATERIAL | 1998 |
|
RU2168579C2 |
