Patent ID: 11883270
Assignee: ONTEX BV
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A method for measuring airflow through a channel comprised in an absorbent article core, said method comprising the steps of:
providing an absorbent core (101) adapted to be sandwiched between a liquid permeable topsheet (40) and a liquid impermeable backsheet (38) of an absorbent article (10, 20, 300), wherein the absorbent core (101) comprises at least one channel (106);
providing a thermal imaging camera;
loading the absorbent core (101) with a warm liquid, wherein said warm liquid has a temperature of greater than 30° C.;
simultaneously visually recording said liquid loaded absorbent core with said thermal imaging camera, and spraying said channel(s) (106) with a cold fluid, wherein the cold fluid has a temperature of less than 10° C.