Sanitary napkin
US4057061A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 1975 |
| Grant date | Nov 8, 1977 |
| Priority date | — |
| Expiry date | Dec 18, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/53445
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A thin sanitary napkin comprising an absorbent core, a fluid-barrier sheet covering at least the bottom surface of the absorbent core and a fluid-pervious wrapper enclosing the core and the sheet, the absorbent core being a compressed element which comprises cottony pulp compressed in a compression ratio of 1/2 to 1/10 to a thickness of about 1 to about 5 mm. The sanitary napkin not only is handy to carry about but also has a good fluid-absorbability, fluid-holding capacity and pleasant feeling in use, though it has about a half of one-third thickness of conventional sanitary napkins. PAC BACKGROUND OF THE INVENTION The present invention relates to a novel sanitary napkin, and more particularly to a thin sanitary napkin including, as an absorbent core, a compressed element which is made of cottony pulp and has a thickness of about 1 to about 5 mm. Commercially available sanitary napkins generally comprise an absorbent core, the bottom of which is covered with a fluid-barrier sheet, and a fluid-pervious wrapper enclosing the absorbent core. In the above-mentioned sanitary napkins, soft cottony pulp having a good fluid-absorbability and fluid-holding capacity is usually employed as a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.