| 摘要 |
A method for manufacturing a sheet of paper and/or of cardboard, according to which, in an apparatus comprising a dilution pump and a head box: - a cellulose-based fibrous suspension is prepared, - the white water is introduced into the thick paste; - the mixture is homogenized in the dilution pump; - the diluted paste is transferred to the head box; - the sheet is formed and then dried, characterized in that, before homogenization of the mixture in the dilution pump, a cationic copolymer obtained by "Hofmann" degradation reaction is introduced into the white water and/or the thick paste and/or the mixture formed by the white water and the thick paste. |
