Absorbent product with double barriers and single elastic system

• US 6,932,799 B2
• Filed: 10/19/2001
• Issued: 08/23/2005
• Est. Priority Date: 10/19/2000
• Status: Active Grant

• Current Assignee: Essity Hygiene and Health Aktiebolag
• Original Assignee: SCA Hygiene Products AB (Industrivärden AB)
• Inventors: Magnusson, Ing-Britt, Samuelsson, Ann
• Primary Examiner(s): Schwartz, Larry I.
• Assistant Examiner(s): ANDERSON, CATHARINE L
• Application Number:
  US09/981,894
• Publication Number:
  US 20020055727A1
• Time in Patent Office: 1,404 Days
• Field of Search: 60438524-38528, 604/385.04, 604/385.01
• US Class Current: 604/385.04
• CPC Class Codes: A61F 13/4752 the means being an upstanding barrier

Abstract

The invention relates to an absorbent product having a longitudinal direction and a transverse direction and comprising a front and a rear end portion (8, 10), an intermediate crotch portion (12), edges extending in the longitudinal direction and in the transverse direction, an upper, liquid-permeable surface layer (2), a lower, liquid-impermeable surface layer (4), an absorbent body (6) arranged between the surface layers (2, 4) and comprising edges in the longitudinal direction and in the transverse direction, liquid barriers (5) extending in the longitudinal direction arranged essentially parallel to those edges of the product running in the longitudinal direction, the liquid barriers (5) each having a free edge (7), side flaps (3) extending in the longitudinal direction outside the liquid barriers (5) and comprising parts of at least one of the surface layers (2, 4), and elastic elements (11; 14; 30) extending in the longitudinal direction and fastened to the liquid barriers (5) or to the side flaps (3), the liquid-permeable surface layer (2) extending in the longitudinal direction of the product at least between the liquid barriers (5). The liquid barriers (5) are, at least in the crotch portion (12) of the product, in the region between their attachment (9) to the absorbent product and their free edge (7), fixed to the adjacent side flap (3) outside the edges of the absorbent body (6), as a result of which the product has double raised leakage barriers arranged along the edges extending in the longitudinal direction.

Claims

1. Absorbent product having a longitudinal direction and a transverse direction and comprising:

a front and a rear end portion,

an intermediate crotch portion,

edges extending in the longitudinal direction and in the transverse direction,

an upper, liquid-permeable surface layer,

a lower, liquid-impermeable surface layer,

an absorbent body arranged between the surface layers and comprising edges in the longitudinal direction and in the transverse direction,

liquid barriers extending in the longitudinal direction arranged essentially parallel to those edges of the product running in the longitudinal direction, the liquid barriers each having a free edge,

side flaps extending in the longitudinal direction outside the liquid barriers and comprising parts of at least one of the surface layers, and

elastic elements extending in the longitudinal direction and fastened to only the liquid barriers without an elastic element being connected to the side flaps, the liquid-permeable surface layer extending in the longitudinal direction of the product at least between the liquid barriers,

wherein each liquid barrier is, at least in the crotch portion of the product, in a region between an attachment to the absorbent product and each said free edge, fixed to the adjacent side flap outside the edges of the absorbent body, as a result of which the product has double raised leakage barriers arranged along the edges extending in the longitudinal direction.

2. Absorbent product according to claim 1, wherein the elastic elements comprise one of:

at least one elastic thread, at least one elastic band, at least one strip of elastic plastic film, at least one strip of elastic non-woven material and elastic foam material.

3. Absorbent product according to claim 1, the side flaps comprising liquid barrier material.

4. Absorbent product according to claim 1, wherein the side flaps comprise parts of the liquid-permeable surface layer.

5. Absorbent product according to claim 1, wherein both the side flaps and the liquid barriers comprise parts of the liquid-permeable surface layer.

6. Absorbent product according to claim 1, wherein both the liquid barriers and the side flaps comprise parts of the liquid-impermeable surface layer.

7. Absorbent product according to claim 1, wherein the side flaps comprise parts of the liquid-impermeable surface layer.

8. An absorbent product comprising:

a liquid-permeable surface layer;

a liquid-impermeable surface layer;

an absorbent body between the liquid-permeable and liquid-impermeable surface layers and having edges extending in a longitudinal direction of the absorbent product, said liquid-permeable and liquid-impermeable surface layers and said absorbent body extending along an intermediate crotch portion between first and second end portions;

liquid barriers extending in the longitudinal direction essentially parallel to said edges of said absorbent body, the liquid barriers each having a free edge;

side flaps extending in the longitudinal direction outside the liquid barriers and comprising part of at least one of the liquid-permeable and liquidimpermeable surface layers; and

elastic elements extending in the longitudinal direction and fastened to only the liquid barriers without an elastic element being connected to the side flaps,

wherein each liquid barrier is fixed to an adjacent one of said side flaps in a region between said free edge and where said liquid barrier extends from said absorbent product, outside the edges of the absorbent body, so that the product has double raised leakage barriers arranged along the edges extending in the longitudinal direction.

10. The absorbent product according to claim 8, wherein the side flaps comprise part of the liquid-impermeable surface layer.

11. The absorbent product according to claim 8, wherein both the side flaps and the liquid barriers comprise part of the liquid-permeable surface layer.

12. The absorbent product according to claim 8, wherein both the liquid barriers and the side flaps comprise part of the liquid-impermeable surface layer.

13. The absorbent product according to claim 8, wherein the liquid barriers comprise part of the liquid-permeable surface layer.

14. The absorbent product according to claim 8, wherein the liquid barriers comprise part of the liquid-impermeable surface layer.

15. The absorbent product according to claim 8, wherein the side flaps comprise part of the liquid-permeable surface layer and part of the liquid-impermeable surface layer.

16. The absorbent product according to claim 8, wherein the elastic elements are only fastened to the liquid barriers.

9. The absorbent product according to claim 9, wherein the side flaps comprise part of the liquid-permeable surface layer.