Improved method of making discrete airlaid absorbent fibrous articles
US4859388A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1987 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Nov 3, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/15626
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved, continuous airlaying apparatus for making airlaid articles such as discrete absorbent fibrous cores for catamenial napkins and disposable diapers and the like having high structural integrity, and good edge definition. The articles are airlaid in discrete cavities as they pass through a deposition zone of the apparatus, and are compacted a predetermined amount prior to their being removed from their respective deposition cavities. An exemplary mechanism for effecting the compacting comprises a lugged cylinder having circumferentially spaced lugs which are configured and pitched to mesh in a quasi gear-like manner with the deposition cavities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.