Disposable diaper
US8287511B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2004 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Jan 24, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/49015
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A disposable diaper includes a body fluid absorbing zone extending over a crotch region further into front and rear waist regions, side flaps extending in a longitudinal direction outside transversely opposite side edges of the zone, and end flaps extending in a transverse direction outside longitudinally opposite ends of the zone. The side flaps in the front waist region are formed from a composite nonwoven fabric composed of a first fibrous nonwoven fabric facing away from the wearer's skin and a second fibrous nonwoven fabric laminated on the first fibrous nonwoven fabric and facing the wearer's skin. The first fibrous nonwoven fabric has a kinetic friction coefficient higher than a kinetic friction coefficient of the second fibrous nonwoven fabric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.