Method of producing an apertured covering sheet for an absorbent article and a material produced in accordance with the method
US6452064B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1999 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Dec 13, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/15731
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of manufacturing a fluid permeable covering sheet (9) for an absorbent article such as a diaper, a sanitary napkin, an incontinence protector or the like, wherein heated needles (4) are brought to penetrate a sheet of textile material (1) comprising at least one thermoplastic component, whereby the thermoplastic component closest to the needles (4) melts, whereafter the needles (4) are removed and the heated material (1) is passed through at least one nip of rollers (7) so that the thermoplastic component closest around the apertures is smoothed out into a substantially smooth material surface around the apertures, whereafter the thermoplastic component is brought to solidify. The invention further pertains to an apertured covering sheet (201, 301) for an absorbent article manufactured in accordance with the method, and an absorbent article (300) provided with a covering sheet manufactured in accordance with the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.