Alliance Antimicrobial Engineering Rolls are for use on all leading OEM large document laser printers. 92 bright white paper increases contrast for greater impact on final prints. 20 lb. paper with stiffness properties provide reliable throughput on Engineering Copiers. Lint-free, acid-free sheet with archival quality. Manufactured by TST/Impreso, Inc., who specializes in printing and converting engineering bond rolls. The antimicrobial engineering roll will protect against microbes (Fungus, Bacteria and Viruses) being transferred or growing.