FIELD: paper industry.
SUBSTANCE: methods for producing special types of paper for impregnation, necessary for the formation of coatings, used in the pulp and paper and furniture industries. Paper pulp for producing base paper for impregnation contains 10-60 wt.% sulphated unbleached softwood pulp with a grinding degree of 18-30° Schopper-Riegler degree, 35-85 wt.% waste paper with grinding degree 20-40° Schopper-Riegler degree, 0-5 wt.% coniferous mechanical mass.
EFFECT: obtaining base paper for impregnation with a specified wet strength and increased moisture capacity, as well as improving the quality of base paper for impregnation while reducing its cost.
1 cl, 2 tbl, 7 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD OF PRODUCING MOISTURE-PROOF BACKING PAPER | 0 |
|
SU1368354A1 |
FIBROUS PULP FOR MAKING ABSORBING TECHNICAL PAPER | 0 |
|
SU1684384A1 |
METHOD FOR MAKING PAPER | 0 |
|
SU1040011A1 |
BAG PAPER | 0 |
|
SU1810419A1 |
METHOD OF MANUFACTURING PAPER FOR CRIMPING | 0 |
|
SU1677127A1 |
PULP STOCK FOR MAKING PAPER FOR CORRUGATION | 0 |
|
SU1498862A1 |
FIBRE COMPOSITION FOR MANUFACTURING PAPER AND PAPER MANUFACTURED USING THIS COMPOSITION | 2023 |
|
RU2809598C1 |
PULP COMPOSITION FOR MAKING NEWSPRINT | 0 |
|
SU1086052A1 |
PROCESS FOR PRODUCING PULP FOR MAKING BACTERICIDAL PAPER | 0 |
|
SU1719519A1 |
COMPOSITION FOR SIZING PAPER IN BULK | 0 |
|
SU1397584A1 |
Authors
Dates
2023-12-12—Published
2023-07-14—Filed