A fabric is disclosed which is suitable for use in the manufacture of
particulate filters for use in high heat environments having a high
airflow requirement, together with a method for making the high heat
filter fabric. The filter fabric has a sliver knit pile construction, and
may be manufactured on conventional knitting machines. Both the yarn used
in the backing of the high heat filter fabric and the fibers used for the
pile of the high heat filter fabric are made of aramid materials, and the
high heat filter fabric is suitable for use in high temperatures such as
those associated with coal-fired power plants.