Absorbent article having an improved diffusion property
US6436082B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Nov 24, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24694
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An absorbent article including an absorbent layer and a liquid-permeable surface sheet placed on a liquid-receiving side of the absorbent layer for introducing excreted liquid from the human body to the absorbent layer. The surface sheet is of a corrugated configuration to have valleys and peaks extending in a longitudinal direction of the article and alternately arranged in a transverse direction perpendicular to the longitudinal direction. Each peak is formed with spares parts and dense parts alternately arranged in the longitudinal direction. The surface sheet has a lower fiber density in the sparse parts than in the dense parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.