ABSORBENT ARTICLE WITH VENTILATED TOPSHEET

• US 20100274208A1
• Filed: 12/21/2007
• Published: 10/28/2010
• Est. Priority Date: 12/21/2007
• Status: Active Grant

• Current Assignee: SCA Hygiene Products AB (Essity AB)
• Original Assignee: SCA Hygiene Products AB (Essity AB)
• Inventors: Nihlstrand, Anna, Gabrielii, Inge
• Granted Patent: US 8,575,418 B2
• Time in Patent Office: Days
• US Class Current: 604/367
• CPC Class Codes: A61F 13/51108 the top sheet having corrugations or embossments having one axis relatively longer than the other axis, e.g. forming channels or grooves in a longitudinal direction

Abstract

An absorbent article, such as a diaper, sanitary napkin, incontinence guard or panty liner, including a fluid-permeable nonwoven topsheet located on the wearer-facing side thereof. The nonwoven topsheet includes a plurality of channels arranged side-by-side. The channels are located within the nonwoven topsheet, whereby gas is allowed to pass into, out of and along the channels, thus providing ventilation of the absorbent article.

Claims

1. :

An absorbent article, such as a diaper, sanitary napkin, incontinence guard or panty liner, said article comprising a fluid-permeable nonwoven topsheet located on the wearer-facing side thereof, said nonwoven topsheet comprising a plurality of channels arranged side-by-side,

wherein the channels are located within the nonwoven topsheet and at least one end of at least one channel extends to an edge of the article, whereby gas is allowed to pass into, out of and along the channels, thus providing ventilation of the absorbent article.

2. :

The absorbent article according to claim 1, wherein the article has longitudinal and transverse extensions, and wherein the channels are arranged side-by-side in the transverse direction of the article and have a main extension in the longitudinal direction of the article.

3. :

The absorbent article according to claim 2, wherein the extension of the channels in the longitudinal direction is at least 30% of the extension of the article in the longitudinal direction.

4. :

The absorbent article according to claim 1, wherein the article has longitudinal and transverse extensions, and wherein the channels are arranged side-by-side in the longitudinal direction of the article and have a main extension in the transverse direction of the article.

5. :

The absorbent article according to claim 4, wherein the extension of the channels in the transverse direction is at least 30% of the extension of the article in the transverse direction.

6. :

The absorbent article according to claim 1, wherein spaces or voids are formed between skin of the wearer and the topsheet in the region of the topsheet between adjacent channels.

7. :

The absorbent article according to claim 1, wherein the channels are substantially free of solid or liquid material.

8. :

The absorbent article according to claim 1, wherein at least one but not all of the channels contain moisture-capturing, liquid-absorbent material, phase change material, or skin care agent, or combinations thereof.

9. :

The absorbent article according to claim 1, wherein the channels are open in at least one end thereof.

10. :

The absorbent article according to claim 1, wherein at least one channel of the absorbent article extend to the transverse edge of the article.

11. :

The absorbent article according to claim 1, wherein the channels comprise hollow filaments, said filaments forming the walls of the channels.

12. :

The absorbent article according to claim 1, wherein the channels comprise porous material or resilient fibrous material.

13. :

The absorbent article according to claim 1, wherein the compression recovery of the topsheet is at least 50%.

14. :

The absorbent article according to claim 2, wherein the extension of the channels in the longitudinal direction is at least 50% of the extension of the article in the longitudinal direction.

15. :

The absorbent article according to claim 2, wherein the extension of the channels in the longitudinal direction is at least 70% of the extension of the article in the longitudinal direction.

16. :

The absorbent article according to claim 4, wherein the extension of the channels in the transverse direction is at least 50% of the extension of the article in the transverse direction.

17. :

The absorbent article according to claim 4, wherein the extension of the channels in the transverse direction is at least 50% of the extension of the article in the transverse direction.

18. :

The absorbent article according to claim 1, wherein the compression recovery of the topsheet is at least 70%.

19. :

The absorbent article according to claim 1, wherein the compression recovery of the topsheet is at least 80%.

20. :

The absorbent article according to claim 1, wherein the compression recovery of the topsheet is at least 100%.