Thin sanitary napkin having a central absorbent zone and a method of forming the napkin

US5248309A · kind A · utility

Assignee

• Kimberly-Clark Inc. · US

Inventors

• Paul J. Serbiak · Appleton, US
• David King · Sydney, AU
• Patricia A. Mitchler · Neenah, US
• Alice Y. Romans-Hess · Fremont, US
• Thomas William Van Den Bogart · Appleton, US
• Robert J. Peerenboom · Town of Grand Chute, US
• Valerie V. Finch · Neenah, US
• James J. Hlaban · Neenah, US

Key dates

• Filing date: Mar 20, 1992
• Grant date: Sep 28, 1993
• Expiry date: Mar 20, 2012

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2013/5307
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A thin sanitary napkin is disclosed along with its method of manufacture. The napkin has a liquid-impermeable baffle and an absorbent retained on the baffle. The absorbent has a longitudinally-extending central absorbent zone with a width of less than about 2 inches. The central zone is capable of absorbing at least 20 grams of body fluid which is discharged from the vaginal cavity and deposited onto the napkin. The central zone also has a greater stiffness than adjacent portions of the napkin so as to resist twisting and bunching during use. The sanitary napkin further has a caliper of less than about 5 millimeters.