| 摘要 |
PURPOSE:To enhance the working characteristics, etc., of the title sheet, by adding a binder having ionicity opposite to the polarity of the zeta potential of an inorg. filler to an aq. dispersion slurry of cellulosic fibers, activated carbon powder, and the inorg. filler, and making the slurry into sheet by a wet process. CONSTITUTION:Cellulosic fibers, activated carbon powder, and an inorg. filler are added to water to prepare an aq. dispersion slurry. A binder having ionicity opposite to the polarity of the zeta potential of the inorg. filler is added to the aq. dispersion slurry or a fixing assistant having ionicity opposite to the polarity of the zeta potential of the inorg. filler is added, then a binder having the same ionicity as the polarity of the zeta potential of an inorg. filler is added, and the slurry is made into sheet by a wet process to obtain the adsorptive sheet. An SBR latex, an NBR latex, an acrylic resin emulsion, polyethyleneimine, colloidal silica, etc., are used as the binder. |
