Diapers with elasticized crotch and end regions and a process and apparatus for the continuous manufacture thereof
US5779689A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1995 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Nov 28, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/49039
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A disposable diaper comprises a liquid-impervious outer sheet (2), defining a narrower crotch region (27) between two wider end or belt regions (28, 29), an absorbent pad (22), fastening members (24) for closing the diapers, and elastic members (4) attached under tension to the impervious sheet (2) on both sides of the absorbent pad (22), substantially over the whole length of the impervious sheet, with a higher tension in the crotch region (27) than in the end regions (28, 29), having, in the two end regions (28, 29), sections (4c) converging in the direction of the transverse edges of the impervious sheet, so that the elastic members (4) form an elastic barrier which practically surrounds the absorbent pad (22) and provide the impervious sheet both with a lengthwise elasticity in the crotch region and a transverse elasticity in the end regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.