FIELD: pulp and paper industry.
SUBSTANCE: group of inventions relates to pulp and paper industry, specifically to production of corrugated cardboard, as well as flat sheet of said cardboard. Surface of flat sheet of cardboard and surface of all sheets of corrugated cardboard before gluing is treated with water solution of ammonium monosubstituted phosphate in amount of 80–130 kg/t and polymer solution, mainly including hydrolysed starch in amount of 10–45 kg/t and hydrophobic adhesive based on styrene-acrylates in amount of 2–5 kg/t.
EFFECT: technical result consists in providing said cardboard and its part in the form of a flat sheet properties of not supporting combustion or self-extinction, while maintaining the required strength and water-repellent properties.
10 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CARDBOARD FOR FLAT LAYERS OF CORRUGATED CARDBOARD AND METHOD FOR PRODUCTION THEREOF | 2021 |
|
RU2765450C1 |
| THERMOMECHANICAL MASS OF PEA STRAW AND METHOD OF MAKING PAPER AND CARDBOARD FROM IT | 2023 |
|
RU2817124C1 |
| COMPOSITION FOR SURFACE COATING OF CRIMP-PAPER OR CRIMPED CARDBOARD FLAT LAYERS | 0 |
|
SU1802840A3 |
| SIZING COMPOSITION, ITS APPLICATION AND A METHOD FOR MANUFACTURING PAPER, CARDBOARD OR A SIMILAR MATERIAL | 2015 |
|
RU2669629C2 |
| METHOD FOR MANUFACTURING FIBROUS SHEET MATERIAL FOR CORRUGATED CARDBOARD | 2002 |
|
RU2207418C1 |
| METHOD OF APPLICATION OF WATER-RESISTANCE COATING ON CORRUGATED CARDBOARD | 2013 |
|
RU2551489C2 |
| COMPOSITION FOR PAPER AND CARDBOARD | 2014 |
|
RU2582704C1 |
| CARDBOARD FOR LIQUID PRODUCTS | 2001 |
|
RU2261948C2 |
| COMPOSITION FOR SURFACE COATING OF CRIMP-PAPER OR CRIMPED CARDBOARD FLAT LAYERS | 0 |
|
SU1802839A3 |
| IMPROVEMENT OF PIPER AND BOARD PRINTING PROPERTIES AND COVERABILITY | 2001 |
|
RU2266995C2 |
