DEEP PATTERNED NONWOVEN FABRICS AND METHOD OF MAKING THEM

摘要

A deep patterned nonwoven fabric including a plurality of raised portions having a first thickness of at least 1.5 mm and a plurality of depressed portions having a second thickness at least 50% less than the first thickness is prepared using a process which reduces and minimizes distortion of the raised portions. The process includes the steps of heating a precursor nonwoven fabric to soften its fibers and passing the heated nonwoven fabric to a nip defined by a patterned roll and an opposing member.