| 摘要 |
PCT No. PCT/FR96/00468 Sec. 371 Date Jan. 13, 1997 Sec. 102(e) Date Jan. 13, 1997 PCT Filed Mar. 28, 1996 PCT Pub. No. WO96/30591 PCT Pub. Date Oct. 3, 1996The invention relates to a new process for the manufacture of paper which employs, in the fibrous composition, a cationic starch exhibiting a high level of fixed nitrogen, namely greater than 0.95%, and a polyaluminum compound, such as a (basic) aluminum polychloride or an aluminum polychlorosulphate. This process makes it possible, including under difficult conditions (fibrous composition based on old papers, significant closure of the circuits), to improve the level of retention of starch and the physical characteristics of the paper, indeed to increase the machine speed by dispensing with the surface treatment optionally applied to the paper. The process according to the invention is particularly suitable for the manufacture of paper for graphical use or of paper for wrapping or packaging and very particularly of fluting paper or of liner paper for corrugated fiberboard. |
