Absorbent product for personal use
US5637106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1994 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Nov 17, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/8491
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Several embodiments of an improved absorbent insert or core are disclosed. According to one embodiment, the insert comprises a fluff layer physically integrated to at least one layer of laminate consisting of at least one tissue layer and polymer powder secured to it and supported on it. The fluff layer and the laminate are embossed between rollers that physically integrate the two layers and produce transfer sites through which liquid is rapidly transferred into the fluff layer, away from a wearer. In another embodiment, an absorbent insert is produced by embossing a laminate between a smooth roller and a patterned roller and trimming and folding the embossed laminate to produce an insert with a central region with an exposed pattern of embossed depressions and, on each side of the central region, lateral regions with an exposed, smooth surface. According to another embodiment, an absorbent insert is produced by depositing super absorbent polymer powder on a portion of a layer of fluff, covering the powder with at least one tissue layer, and embossing the assembly to produce an integrated absorbent insert. According to another embodiment, an absorbent insert is produced by deposit…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.