Absorbent article having stain resistant properties
US8148597B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2006 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Sep 4, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/8497
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sanitary napkin including a body facing surface, a portion adapted to be arranged over the vaginal opening during use, a first colored portion, said colored portion extending over at least the portion of the napkin to be placed over the vaginal opening during use, a noncolored portion, wherein said first colored portion has a first color as measured from said body facing surface prior to staining, wherein the first colored portion has a second color as measured from said body facing surface after staining, wherein the first color has an average L value greater than 80; and wherein a Δa* between said first color and said second color is less than 18.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.