The invention is generally accomplished by providing a pad that has an impermeable backing member, an overlaying permeable member and an absorbent coform layer therebetween. The pad is provided with a quilted pattern by permanent adhering compression of the pad in narrow areas, forming a lined pattern....http://www.google.es/patents/US4650481?utm_source=gb-gplus-sharePatente US4650481 - Crinkled, quilted absorbent pad
