Absorbent garment

• US 10,441,480 B2
• Filed: 12/06/2017
• Issued: 10/15/2019
• Est. Priority Date: 05/03/2013
• Status: Active Grant

• Current Assignee: Knix Wear Inc
• Original Assignee: Knix Wear Inc
• Inventors: Griffiths, Joanna
• Primary Examiner(s): Anderson, Catharine L
• Application Number:
  US15/833,248
• Publication Number:
  US 20180092787A1
• Time in Patent Office: 678 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; and elastic bonding film bonded to each of the two leg openings and overlying respective portions of the peripheral region of the absorbent pad thereby to seamlessly bond the absorbent pad with the body portion.

Claims

1. An undergarment comprising:

a body portion that includes;

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; and

strips of elastic bonding film bonding the absorbent assembly to the body portion;

wherein the absorbent assembly includes;

an absorbent layer for absorbing moisture received from a wearer of the undergarment; and

a moisture-barrier layer;

wherein the absorbent assembly overlies at least the crotch region of the body portion with the moisture-barrier layer facing the body portion and being between the body portion and the absorbent layer;

wherein the strips of elastic bonding film are bonded to each of the two leg opening regions and bond at least a portion of the absorbent assembly to the body portion; and

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

2. The undergarment of claim 1, wherein the absorbent assembly further includes a wicking layer overlying the absorbent layer and the crotch region with the absorbent layer being between the moisture-barrier layer and the wicking layer, the wicking layer for wicking moisture away from the wearer of the undergarment towards the absorbent layer.

3. The undergarment of claim 2, wherein each strip of elastic bonding film overlies a respective portion of a peripheral region of the wicking layer.

4. The undergarment of claim 2, wherein the wicking layer is configured to spread moisture prior to reaching the absorbent layer thereby to reduce the rate at which the absorbent layer is locally saturated.

5. The undergarment of claim 2, wherein the wicking layer comprises cotton.

6. The undergarment of claim 1, wherein the moisture-barrier layer includes one or more of a moisture-barrier treatment and a film.

7. The undergarment of claim 1, wherein the absorbent layer and the moisture-barrier layer are thermal-compression bonded together about peripheral region of the absorbent assembly.

8. The undergarment of claim 7, wherein the peripheral region of the absorbent assembly has a higher density than an inner region of the absorbent assembly.

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

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

11. The undergarment of claim 10, wherein the antimicrobial fibre comprises silver antimicrobial fibre.

12. The undergarment of claim 1, wherein at least one of the strips of elastic bonding film overlies a respective portion of a peripheral region of the absorbent assembly with the absorbent assembly being between the strip of elastic bonding film and the body portion.

13. The undergarment of claim 1, wherein at least one of the strips of elastic bonding film underlies a respective portion of a peripheral region of the absorbent assembly with the moisture-barrier layer being positioned between the strip of elastic bonding film and the absorbent layer.

14. The undergarment of claim 1, wherein the absorbent assembly is a thermo-compression bonded absorbent assembly.

15. The undergarment of claim 1, wherein the absorbent assembly is seamlessly bonded to the body portion.

25. The moisture-absorbent panty of claim 2, wherein the absorbent assembly is seamlessly bonded to the body portion.

16. A method of manufacturing an undergarment having a body portion and an absorbent assembly overlying the body portion, the absorbent assembly having an absorbent layer and a moisture-barrier layer, the method comprising:

arranging the absorbent assembly over at least a crotch region of the body portion between two leg opening regions of the body portion with the moisture-barrier layer of the absorbent assembly facing the body portion and being between the body portion and the absorbent layer; and

bonding the absorbent assembly to the body portion with strips of elastic bonding film positioned within the leg opening;

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

17. The method of claim 16, wherein the absorbent assembly further includes a wicking layer, and wherein the method further comprises, prior to the bonding the absorbent assembly to the body portion, overlying the absorbent layer with the wicking layer with the absorbent layer being between the moisture-barrier layer and the wicking layer.

18. The method of claim 16, wherein the bonding the absorbent assembly to the body portion includes positioning at least one strip of elastic bonding film over a peripheral region of the absorbent assembly with the absorbent assembly being between the strip of elastic bonding film and the body portion to bond at least a portion of the absorbent assembly to the body portion.

19. The method of claim 16, wherein the bonding the absorbent assembly to the body portion includes positioning at least one strip of elastic bonding film under a peripheral region of the absorbent assembly with the moisture-barrier layer between being between the strip of elastic bonding film and the absorbent layer to bond at least a portion of the absorbent assembly to the body portion.

20. The method of claim 16, wherein the absorbent assembly is a thermo-compression bonded absorbent assembly.

21. The method of claim 16, wherein the bonding the absorbent assembly to the body portion includes seamlessly bonding the absorbent assembly to the body portion.

22. A moisture-absorbent panty having a crotch region that comprises:

an absorbent assembly comprising an absorbent layer overlying a moisture-barrier layer, the absorbent assembly oriented to face a wearer of the moisture-absorbent panty;

a body layer of the moisture-absorbent panty supporting the absorbent assembly within the crotch region with the moisture-barrier layer being between the body layer and the absorbent layer; and

strips of elastic bonding film on opposite sides of the crotch region, wherein the strips of elastic bonding film bond at least a portion of the absorbent assembly to the body layer, wherein each strip is;

bonded to a respective portion of a peripheral region of the absorbent assembly with at least a portion of the absorbent assembly between the body layer and the strip; and

bonded to the body layer;

wherein the moisture-absorbent panty is configured to be washed and re-worn numerous times.

23. The moisture-absorbent panty of claim 22, wherein the absorbent assembly further includes a wicking layer overlying the absorbent layer and oriented to face the wearer of the moisture-absorbent panty, wherein at least one of the strips of elastic bonding film is bonded to a respective portion of a peripheral region of the wicking layer with at least a portion of the wicking layer being between the body layer and the strip of elastic bonding film.

24. The moisture-absorbent panty of claim 22, wherein the absorbent assembly is a thermo-compression bonded absorbent assembly.