A synthetic fiber that is part of the NYLON (POLYAMIDE) family. Aramid is short for Aromatic Polyamide. META-ARAMIDS (NOMEX) exhibit very high heat resistance and PARA-ARAMIDS (KEVLAR) exhibit very high strength as well as high heat resistance. Other brand names include TWARON, TECHNORA, and HERACRON.
References for this information:
Handbook of Nonwoven Filter Media, 2007, Pages 103-194