| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem of a requirement for removing a pollutant gas such as an alkaline gas or an acidic gas contained in the atmosphere in addition to conventional removal of dust particles in building air conditioning, and air conditioning systems in hospital facilities and clean rooms along with recent environmental change. <P>SOLUTION: A filter medium for gas removal is made by attaching an ion-exchange group and a reaction group with a method such as graft polymerization, a chemical liquid impregnation method and the like to a laminated filter base material which is prepared by attaching an adhesive medium of a binder, a fused fiber or adhesive powder to nonwoven or woven fabric constituted of a synthetic fiber or a glass fiber and a natural fiber of 0.3-50 μm in fiber diameter and 0.1-1.0 mm in thickness to laminate a micro-fine fiber layer of 0.01-0.5 μm in fiber diameter, and to unite the nonwoven or woven fabric with the micro-fine fiber. <P>COPYRIGHT: (C)2013,JPO&INPIT |
