BONDED ELASTIC ARTICLE; METHOD OF BONDING ELASTIC MATERIAL TO SUBSTRATE BY ULTRASONIC WELDING, ELASTIC MATERIAL COMPRISES THERMOPLASTIC THREADS

摘要

PCT No. PCT/SE94/01236 Sec. 371 Date Jun. 18, 1996 Sec. 102(e) Date Jun. 18, 1996 PCT Filed Dec. 21, 1994 PCT Pub. No. WO95/17296 PCT Pub. Date Jun. 29, 1995Elastic tapes consisting of non-weldable elastic warp threads and weldable thermoplastic weft threads, are fixed to one side of a cover layer of a disposable diaper by ultrasonic welding of the thermoplastic weft threads