FIELD: paper.
SUBSTANCE: invention relates to a fibrous cardboard composition for producing a water-dispersible cardboard sheet and a water-dispersible cardboard sheet based thereon, as well as to a dispersible sleeve for a toilet paper roll, obtained on the basis of said cardboard sheet. Fibrous composition of the cardboard contains bleached chemical-thermomechanical pulp (CTMP), bleached sulphate hardwood pulp and bleached sulphate softwood pulp. Content of bleached CTMP ranges from 5 to 15 wt.% of the weight of said fibrous cardboard composition. Content of bleached sulphate softwood cellulose is from 15 to 30 wt.% of the weight of said fibrous cardboard composition. Fibrous composition of the cardboard has a degree of grinding in range from 18° to 23° Schopper-Riegler.
EFFECT: obtaining a water-dispersible cardboard sheet, which has high dispersibility, as well as an optimum ratio of wetting properties, dispersibility and strength of the cardboard.
4 cl, 1 dwg, 1 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CARDBOARD SHEET AND SLEEVE FROM SUCH SHEET FOR WINDING SANITARY AND HYGIENIC PRODUCTS, WHICH DISINTEGRATE IN WATER UNDER CONDITIONS OF ITS VARIABLE HARDNESS | 2023 |
|
RU2815797C1 |
| METHOD FOR PRODUCING CELLULOSE HYDROGEL COMPOSITE | 2023 |
|
RU2808897C1 |
| CARDBOARD FOR FLAT LAYERS OF CORRUGATED CARDBOARD AND CONTAINER USING THE SAME | 2003 |
|
RU2233929C1 |
| METHOD TO PRODUCE MODIFIED CELLULOSE FOR USE IN PRODUCTS FROM PAPER OR PAPER WEB, BLEACHED MODIFIED SULFATE CELLULOSE, PAPER OR CARDBOARD | 2006 |
|
RU2454494C2 |
| PAPER PULP FOR MANUFACTURE OF DAILY PAPER | 1995 |
|
RU2085645C1 |
| METHOD FOR AERODYNAMIC MANUFACTURE OF CARDBOARD AND WRITING OR PRINTING PAPER | 1994 |
|
RU2100508C1 |
| METHOD OF PRODUCTION OF CARDBOARD WITH WHITE COVER LAYER | 2011 |
|
RU2473725C1 |
| IMPROVED METHOD FOR PRODUCTION OF CELLULOSE, PAPER AND CARDBOARD | 2007 |
|
RU2424388C2 |
| PAPER PULP FOR MANUFACTURING FILTERING PAPER AND CARDBOARD INTENDED FOR CLEANING LIQUID PETROLEUM PRODUCTS | 0 |
|
SU1113448A1 |
| LIGNIN-CELLULOSE MATERIALS AND PRODUCT MADE FROM SAID MATERIALS | 2006 |
|
RU2387669C2 |
