Sanitary napkin
US6730068B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Oct 16, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/4702
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is a sanitary napkin having extensions. The sanitary napkin includes: a liquid-permeable topsheet disposed on one side of the sanitary napkin to cover a central region thereof; a backsheet; an absorbent layer disposed therebetween; and leakage preventing portions disposed on laterally opposed side portions of the topsheet and extending in a longitudinal direction of the sanitary napkin. Joints between the respective leakage preventing portions and the topsheet are formed to extend in the longitudinal direction. The extensions are portions of the sanitary napkin extending laterally outwardly beyond the joints. Each extension includes: a flexible region for facilitating folding thereof, which is spaced laterally outwardly apart from corresponding one of the joints: and a buffer region of a predetermined width between the flexible region and the corresponding joint. The compression energy of the buffer region in its thickness direction is in a range of 0.4 to 1.0 (N·m/m2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.