Method for determining and/or visualizing airflow through absorbent cores and absorbent articles exhibiting enhanced airflow
US11883270B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2018 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Mar 11, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30124
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for measuring airflow through a channel comprised in an absorbent article core, said method comprising the steps of: providing an absorbent core adapted to be sandwiched between a liquid permeable topsheet and a liquid impermeable backsheet of an absorbent article, wherein the absorbent core comprises at least one channel; providing a thermal imaging camera; loading the absorbent core with a warm liquid, wherein said warm liquid has a temperature of greater than 30° C.; simultaneously visually recording said absorbent core with said thermal imaging camera, and spraying said channel(s) with a cold fluid, wherein the cold fluid has a temperature of less than 10° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.