Method for determining and/or visualizing airflow through absorbent cores and absorbent articles exhibiting enhanced airflow
AssigneesOntex BV, Ontex Group NV
InventorAinas Weber
Life of this patent
Estimating the term…
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.
Claims20
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.
A method for comparing liquid distribution between two or more different absorbent article cores, said method comprising the steps of:
- providing a first absorbent core adapted to be sandwiched between a liquid permeable topsheet and a liquid impermeable backsheet of an absorbent article;
- providing a second absorbent core adapted to be sandwiched between a liquid permeable topsheet and a liquid impermeable backsheet of an absorbent article;
- providing a thermal imaging camera;
- loading the first and second absorbent cores with an equal and predetermined amount of warm liquid, wherein said warm liquid has a temperature of greater than 30° C.;
- visually recording said absorbent core with said thermal imaging camera;
- and
- comparing an image of the first absorbent core with an image of the second absorbent core taken no more than 60 seconds from complete loading of said absorbent cores.
Dependencies are inferred from the claim text.