Patent ID: 8827883

Claim:
A disk for use in a disk roll comprising a rotating shaft and ring-shaped disks fitted thereon by insertion, whereby the peripheral surface of the ring-shaped disks serves as a conveying surface, the disk consisting essentially of more than 30% by mass to about 70% by mass of mullite fibers comprising Al 2 O 3 and SiO 2 in a ratio that Al 2 O 3 :SiO 2 is from about 60: about 40 to about 99: about 1, about 2% by mass to about 30% by mass of Kibushi clay, 2% by mass to 20% by mass of bentonite, more than 25% by mass to about 40% by mass of mica, and optionally one or more members selected from an organic binder, organic fibers and a flocculant.