Absorbent article
US7858842B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2005 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Jan 9, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/5123
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is an absorbent article including a liquid absorbent layer for absorption and retention of liquid and a liquid passage layer located on a liquid-receiving side of the liquid absorbent layer. The liquid passage layer includes a first passage layer and a second passage layer disposed between the first passage layer and the liquid absorbent layer. The first passage layer and the second passage layer are resin films formed with a plurality of liquid passage apertures. The individual liquid passage apertures are defined by a peripheral wall projecting toward the liquid absorbent layer to provide the first passage layer and the second passage layer with thicknesses greater than a thickness of the resin film itself. Under a load in a thickness direction, the second passage layer has a greater compressibility than the first passage layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.