Sanitary napkin
US5746729A · kind A · utility
36Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1996 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Dec 31, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/15886
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sanitary napkin includes a top layer having an upper layer made of a perforated thermoplastic synthetic resinous film and a lower layer made of thermoplastic synthetic fibers having a hydrophilic property higher than that of the upper layer. These upper and lower layers are intermittently heat sealed together except at a central zone of the napkin by thermally debossing the upper and lower layers so that the central zone may be thicker and softer than the remaining zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.