Eastman Chemical Company
ULTRASONIC BONDING PROCESS FOR BONDING NONWOVEN WEBS CONTAINING CELLULOSE ESTER FIBERS

Abstract:

Process for ultrasonically bonding nonwoven webs comprising: providing a nonwoven web comprised of base fibers in an amount from 0 to 85 wt % and binder fibers in an amount from 15 to 100 wt %, based on the total weight of the nonwoven web; and ultrasonically bonding the nonwoven web to itself or another nonwoven web, wherein the binder fibers comprise cellulose ester fibers.