ADSORPTIVE SHEET AND ITS PREPARATION

摘要

PROBLEM TO BE SOLVED: To provide an adsorptive sheet with excellent deodorizing effect to aldehyde gas and excellent stable adsorption and removing properties for a long time exhibiting no decrease in performance with time. SOLUTION: A sheet contg. an active carbon material is provided with an aliph. amine layer and a weak acid layer on the surface layer part of at least one face of the sheet. The active carbon material is pref. finely particulate active carbon. The aliph. amine layer is pref. a polyalkyleneamine or ethanolamine.