A sanitary napkin has an absorbent core convexly curved upward and the absorbent core is provided on its lower side with a pad adapted to hold a curved shape of the absorbent core. The pad is formed on its upper side with a plurality of projections and continuous troughs so that the projections are bonded...http://www.google.ca/patents/US6575948?utm_source=gb-gplus-sharePatent US6575948 - Sanitary napkin
