Absorbent article performing color change in response to external stimulus
US7105715B2 · kind B2 · utility
28Cited by
14References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2005 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Apr 29, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/8405
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to the field of absorbent articles for feminine hygiene. The absorbent articles of the present invention are capable to perform colour changes in response to an external stimulus. These colour changes are visible to the users of such articles. The external stimuli herein are pressure, temperature and light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.