A die-cut, contoured, catamenial napkin of joined-together layers of sheet material assembled into a sandwich which combines a thin, soft, flexible peripheral portion for comfort with a thick central portion for increased fluid-holding capacity. The uppermost layer is a thin batt of intermingled fibers...http://www.google.es/patents/US4079739?utm_source=gb-gplus-sharePatente US4079739 - Die-cut contoured catamenial napkin of multi-layered construction
Die-cut contoured catamenial napkin of multi-layered construction