Topsheet for body fluids absorbent article
US6274218A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1999 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Mar 26, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24322
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A topsheet for body fluids absorbent article having a plurality of liquid-pervious apertures, the topsheet including an upper fibrous layer having a relatively low density and a lower fibrous layer having a relatively high density. Around each of the apertures, the first and second fibrous layers are integrated together so that the topsheet has a density progressively increasing from an upper surface towards a lower surface of the topsheet and has, in the proximity of the lower surface, a density further higher than in the second fibrous layer. The topsheet thus formed improves so that an upper surface thereof can be maintained in a dry state during use of the article having the topsheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.