Absorbent article
US8507747B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2007 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Jul 18, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/530532
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An absorbent article includes a liquid-pervious sheet, an outer covering sheet, and an absorbent structure sandwiched between the liquid-pervious sheet and the outer covering sheet. The absorbent structure includes a liquid-absorbent mixture composed of super-absorbent polymer particles and fluff pulp and nonwoven fabric sheet formed from long fibers of thermoplastic resin. The nonwoven fabric sheet is put in contact, along at least one surface thereof, with the liquid-absorbent mixture and has cross points at which the long fiber sealed together, and a nap height defined by a difference between a thickness measured before a napping test and a thickness measured after the napping test is at least 0.5 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.