To control a flow of body fluid generally occurring on the liquid-permeable topsheet for body fluid absorbent article in a predetermined direction, here is disclosed an improved liquid-permeable topsheet made of thermoplastic synthetic resin comprising a plurality of first direction ribs and a plurality...http://www.google.ca/patents/US5268213?utm_source=gb-gplus-sharePatent US5268213 - Liquid-permeable topsheet for body fluid absorbent articles
