FIELD: textiles, paper.
SUBSTANCE: present invention relates to a method of manufacturing paper or cardboard, the aqueous composition used in the manufacture of paper and cardboard. The claimed object is solved in that the paper or cardboard mass is diluted with an aqueous composition obtained from particles of colloidal size of carbonate and bicarbonate and other forms of carbonate in aqueous solution, so that the pH value in the aqueous solution is substantially maintained at a level of 6.0-8.3 during formation, and water is removed from the mass by means of draining, pressing and drying. The invention also relates to a method of preparing an aqueous composition used for this purpose.
EFFECT: object of present invention is to improve retention of solid substance, dehydration and texture, especially in the manufacture of paper and cardboard products.
19 cl, 5 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| ACIDIC AQUEOUS COMPOSITION AND APPLYING THEREOF FOR DRAINAGE OR SEPARATION OF SOLID SUBSTANCES | 2009 |
|
RU2534238C2 |
| USE OF PRECIPITATED CARBONATE IN MANUFACTURE OF FIBRE PRODUCT | 2012 |
|
RU2598447C2 |
| SILICON DIOXIDE BASED COLLOIDAL SOLUTIONS | 2008 |
|
RU2444473C2 |
| SILICON DIOXIDE BASED SOLS, THEIR PREPARATION AND USAGE | 2005 |
|
RU2363656C2 |
| PRODUCTION OF PAPER OR CARDBOARD | 2008 |
|
RU2431710C2 |
| PAPER FILLER | 2004 |
|
RU2345189C2 |
| PAPER MAKING PROCESS | 2010 |
|
RU2536142C2 |
| MANUFACTURE AND USE OF COMPOSITE STRUCTURE CONTAINING PRECIPITATED CARBONATE | 2013 |
|
RU2606433C2 |
| AQUEOUS COMPOSITIONS AND THEIR APPLICATION IN PAPER AND CARTON MAKING | 2004 |
|
RU2350561C2 |
| METHOD FOR MANUFACTURE OF PAPER AND CARDBOARD | 2001 |
|
RU2265097C2 |
