Absorbent core comprising multiple sublayers
US8901368B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2007 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Aug 9, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/53
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An absorbent core for use in an absorbent product, such as a sanitary napkin, a diaper, an incontinence protection or the like. The core after compression has a material density (based on the total content of the core) of at least 200 kg/m3, preferably at least 230 kg/m3, measured at a pressure of 0.5 kPa. The absorbent core has been formed in-line as a discrete or continuous core and includes SAP-particles, where at least 99.5% of the SAP-particles have a size of maximally 600 μm. Hereby, problems with regard to clogging of SAP-particles to compression rollers during manufacturing are markedly reduced. Further, a method for manufacturing the absorbent core, as well as an absorbent product including the absorbent core is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.