HOLDING MATERIAL FOR GAS TREATMENT DEVICE, GAS TREATMENT DEVICE, AND PRODUCTION PROCESSES THEREFOR

摘要

Provided are a holding material for a gas treatment device, which is inexpensive, has a simple structure, and exhibits high holding force, a gas treatment device, and a method for manufacturing the same. A holding material for a gas treatment device according to the present invention is a holding material (10), which is a holding material to be arranged, in a gas treatment device (1) including a treatment structure (20) and a casing (40) for housing the treatment structure (20), between the treatment structure (20) and the casing (40), the holding material (10) including silica fibers and an alumina sol in an amount of 3 parts by mass or more in terms of a solid content with respect to 100 parts by mass of the silica fibers.