Absorbent garment

• US 10,441,479 B2
• Filed: 05/02/2014
• Issued: 10/15/2019
• Est. Priority Date: 05/03/2013
• Status: Active Grant

• Current Assignee: Knix Wear Inc (Essity AB)
• Original Assignee: Knix Wear Inc (Essity AB)
• Inventors: Griffiths, Joanna
• Primary Examiner(s): Anderson, Catharine L
• Application Number:
  US14/888,435
• Publication Number:
  US 20160089276A1
• Time in Patent Office: 1,992 Days
• CPC Class Codes: A61F 13/15268 reusable with separable parts A61F13/505
• CPC Class Codes: A61F 13/49017 the elastic means being located at the crotch region
• CPC Class Codes: A61F 13/49406 the edge leakage prevention means being at the crotch region
• CPC Class Codes: A61F 13/496 in the form of pants or briefs
• CPC Class Codes: A61F 13/532 inhomogeneous in the plane of the pad
• CPC Class Codes: A61F 13/8405 Additives, e.g. for odour, disinfectant or pH control
• CPC Class Codes: A61F 2013/15276 washable
• CPC Class Codes: A61F 2013/8414 with anti-microbic
• CPC Class Codes: A61L 15/46 Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
• CPC Class Codes: A61L 2300/104 Silver, e.g. silver sulfadiazine
• CPC Class Codes: A61L 2300/404 Biocides, antimicrobial agents, antiseptic agents

Abstract

An undergarment includes a body portion having an upper edge defining a waistband, two leg openings and a crotch region between the leg openings; an absorbent pad on the inside of the body portion within at least the crotch region, the absorbent pad having an inner region and a peripheral region, wherein the thickness of the absorbent pad in the peripheral region is less than the thickness of the absorbent pad in the inner region; and elastic bonding film lining each of the two leg openings while overlying respective portions of the peripheral region of the absorbent pad thereby to bond the absorbent pad and the body portion. A method of manufacturing an undergarment is provided.

Claims

1. An undergarment comprising:

a body portion having an upper edge defining a waistband, two leg opening regions defining respective leg openings, and a crotch region between the leg opening regions;

an absorbent assembly that includes an absorbent layer and that overlies at least the crotch region of the body portion, the absorbent assembly having an inner region and a peripheral region, wherein the thickness of the absorbent assembly in the peripheral region is less than the thickness of the absorbent assembly in the inner region; and

elastic bonding film lining each of the two leg opening regions while overlying respective portions of the peripheral region of the absorbent assembly, wherein the elastic bonding film bonds the absorbent assembly to the body portion;

wherein the undergarment is configured to be washed and re-worn numerous times.

2. The undergarment of claim 1, wherein the thickness of the elastic bonding film is about equal to the difference in thickness of the absorbent assembly in the peripheral and inner regions.

3. The undergarment of claim 1, wherein the absorbent assembly further comprises a wicking layer overlying the absorbent layer for wicking moisture away from a user of the undergarment towards the absorbent layer.

4. The undergarment of claim 3, wherein the elastic bonding film overlies a peripheral region of the wicking layer.

5. The undergarment of claim 3, wherein the wicking layer is adapted to spread moisture prior to reaching the absorbent layer thereby to reduce the rate at which the absorbent layer is locally saturated.

6. The undergarment of claim 3, wherein the wicking layer comprises cotton.

7. The undergarment of claim 1, wherein the absorbent assembly further comprises a moisture-barrier layer.

8. The undergarment of claim 7, wherein the moisture barrier layer includes one or more of a moisture-barrier treatment and a moisture-barrier film.

9. The undergarment of claim 7, wherein the absorbent layer and the moisture-barrier layer are thermal-compression bonded together about the peripheral region of the absorbent assembly.

10. The undergarment of claim 9, wherein the thermal-compression bonded peripheral region has an increased density to facilitate bonding with the elastic bonding film.

11. The undergarment of claim 1, further comprising a moisture-repellant adjacent to and inside the peripheral region of the absorbent assembly, wherein the moisture-repellant resists passage of moisture from within the absorbent assembly towards the peripheral region.

12. The undergarment of claim 11, wherein the absorbent layer includes the moisture-repellant.

13. The undergarment of claim 1, wherein the reduced-thickness peripheral region is immediately adjacent to the edges of the absorbent assembly.

14. The undergarment of claim 1, wherein the reduced-thickness peripheral region is spaced from the edges of the absorbent assembly.

15. The undergarment of claim 1, wherein the absorbent assembly comprises antimicrobial fibre.

16. The undergarment of claim 15, wherein the antimicrobial fibre comprises silver.

17. A method of manufacturing an undergarment comprising:

arranging an absorbent assembly that includes an absorbent layer over at least a crotch region that extends between two leg opening regions of a body portion of the undergarment; and

bonding the absorbent assembly to the body portion by lining the leg opening regions with elastic bonding film such that the elastic bonding film overlies respective portions of a peripheral region of the absorbent assembly and bonds the absorbent assembly to the body portion;

wherein the undergarment is configured to be washed and re-worn numerous times.

18. The method of claim 17, further comprising:

prior to lining the leg opening regions with the elastic bonding film, overlying the absorbent layer with a wicking layer of the absorbent assembly, wherein the elastic bonding film overlies a peripheral region of the wicking layer.

19. The method of claim 17, comprising:

thermo-compressing the peripheral region of the absorbent assembly thereby to cause the peripheral region to be reduced in thickness.

20. An undergarment comprising:

a body portion having a crotch region between two leg opening regions; and

an absorbent assembly overlying the crotch region and bonded to the body portion with elastic bonding film, wherein the elastic bonding film lines the leg opening regions and overlies a reduced-thickness peripheral region of the absorbent assembly;

wherein the undergarment is configured to be washed and re-worn numerous times.

21. The undergarment of claim 20, wherein the absorbent assembly comprises an absorbent layer and a wicking layer overlying the absorbent layer, and wherein the elastic bonding film overlies a peripheral region of the wicking layer.

22. The undergarment of claim 20, wherein the absorbent assembly comprises antimicrobial fibre.

23. The undergarment of claim 22, wherein the antimicrobial fibre comprises silver.