CA2473695A1 - Leg gasketing index for absorbent undergarments - Google Patents

Leg gasketing index for absorbent undergarments Download PDF

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Publication number
CA2473695A1
CA2473695A1 CA002473695A CA2473695A CA2473695A1 CA 2473695 A1 CA2473695 A1 CA 2473695A1 CA 002473695 A CA002473695 A CA 002473695A CA 2473695 A CA2473695 A CA 2473695A CA 2473695 A1 CA2473695 A1 CA 2473695A1
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CA
Canada
Prior art keywords
garment
elongation
leg gather
standing leg
gather
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002473695A
Other languages
French (fr)
Other versions
CA2473695C (en
Inventor
Lee W. Johnston
Kenneth John Molee
Stacy Jean Driskell
John D. Litvay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paragon Trade Brands LLC
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2473695A1 publication Critical patent/CA2473695A1/en
Application granted granted Critical
Publication of CA2473695C publication Critical patent/CA2473695C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
    • A61F13/49413—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
    • A61F13/4942—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier the barrier not being integral with the top- or back-sheet

Abstract

An absorbent garment having standing leg gathers with improved leak containment capabilities, a method of making the absorbent garment, and a method of determining the leak containment capability of a standing leg gather are disclosed herein. In a first aspect, a method of determining a Leg Gasketing Index is disclosed herein and includes elongating a section of a standing leg gather and measuring the resulting elastic contractile force. In a second aspect, the present invention relates to an absorbent garment including standing leg gathers having a mean Total Leg Gasketing Index over three elongation cycles of at least about 4.75 kg*mm.

Claims (79)

WHAT IS CLAIMED IS:
1. A disposable absorbent garment comprising:
a back sheet;
a top sheet;
an absorbent core at least partially disposed between the back sheet and the top sheet;
at least one longitudinally extending, elasticized standing leg gather disposed laterally from a longitudinal centerline of the garment, the at least one standing leg gather including at least one elastic element for distributing elastic contractile forces; and wherein the at least one standing leg gather has a mean Total Leg Gasketing Index over three elongation cycles of at least about 4.75 kg*mm.
2. The garment of Claim 1, wherein the at least one standing leg gather has a mean Total Leg Gasketing Index over three elongation cycles of at least about 5.5 kg*mm.
3. The garment of Claim 1, wherein the at least one standing leg gather has a mean Total Leg Gasketing Index over three elongation cycles of at least about 7 kg*mm.
4. The garment of Claim 1, wherein the at least one standing leg gather has a mean Total Leg Gasketing Index over three elongation cycles of at least about 8 kg*mm.
5. The garment of Claim 1, wherein the elasticized standing leg gather includes at least 5 elastic elements.
6. The garment of Claim 5, wherein the leg gather includes at least 7 elastic elements.
7. The garment of Claim 1, wherein the elasticized standing leg gather has a height of from about 20 mm to about 100 mm.
8. The garment of Claim 7, wherein the leg gather has a height of from about mm to about 60 mm.
9. The garment of Claim 1, wherein the elastic elements have a decitex (dtex) of between about 400 and about 1300.
10. The garment of Claim 9, wherein the dtex is between about 680 and about 940.
11. A disposable absorbent garment comprising:
a back sheet;
a top sheet;
an absorbent core at least partially disposed between the back sheet and the top sheet;
at least one longitudinally extending, elasticized standing leg gather disposed laterally from a longitudinal centerline of the garment, the at least one standing leg gather including at least one elastic element for distributing elastic contractile forces; and wherein the at least one standing leg gather has a mean Summation Leg Gasketing Index at 150% elongation for three cycles of at least about 15 kg*mm.
12. The garment of Claim 11, wherein the at least one standing leg gather has a mean Summation Leg Gasketing Index at 150% elongation for three cycles of at least about 21 kg*mm.
13. The garment of Claim 11, wherein the at least one standing leg gather has a mean Summation Leg Gasketing Index at 175 % elongation for three cycles of at least about 20 kg*mm.
14. The garment of Claim 11, wherein the at least one standing leg gather has a mean Summation Leg Gasketing Index at 175 % elongation for three cycles of at least about 30 kg*mm.
15. The garment of Claim 11, wherein the at least one standing leg gather has a mean Summation Leg Gasketing Index at 195% elongation for three cycles of at least about 25 kg*mm.
16. The garment of Claim 11, wherein the at least one standing leg gather has a mean Summation Leg Gasketing Index at 195% elongation for three cycles of at least about 35 kg*mm.
17. The garment of Claim 11, wherein the elasticized standing leg gather includes at least 5 elastic elements.
18. The garment of Claim 17, wherein the leg gather includes at least 7 elastic elements.
19. The garment of Claim 11, wherein the elasticized standing leg gather has a height of from about 20 mm to about 100 mm.
20. The garment of Claim 19, wherein the leg gather has a height of from about 35 mm to about 60 mm.
21. The garment of Claim 11, wherein the elastic elements have a decitex (dtex) of between about 400 and about 1300.
22. The garment of Claim 21, wherein the dtex is between about 680 and about 940.
23. A disposable absorbent garment comprising:
a back sheet;
a top sheet;
an absorbent core at least partially disposed between the back sheet and the top sheet;
at least one longitudinally extending, elasticized standing leg gather disposed laterally from a longitudinal centerline of the garment, the at least one standing leg gather including at least one elastic element for distributing elastic contractile forces; and wherein the at least one standing leg gather has a mean first cycle partial Average Leg Gasketing Index of at least about 23 kg*mm.
24. The garment of Claim 23, wherein the at least one standing leg gather has a mean first cycle partial Average Leg Gasketing Index of at least about 30 kg*mm.
25. The garment of Claim 23, wherein the at least one standing leg gather has a mean second cycle partial Average Leg Gasketing Index of at least about 19 kg*mm.
26. The garment of Claim 23, wherein the at least one standing leg gather has a mean second cycle partial Average Leg Gasketing Index of at least about 28 kg*mm.
27. The garment of Claim 23, wherein the at least one standing leg gather has a mean third cycle partial Average Leg Gasketing Index of at least about 19 kg*mm.
28. The garment of Claim 23, wherein the at least one standing leg gather has a mean third cycle partial Average Leg Gasketing Index of at least about 27 kg*mm.
29. The garment of Claim 23, wherein the elasticized standing leg gather includes at least 5 elastic elements.
30. The garment of Claim 29, wherein the leg gather includes at least 7 elastic elements.
31. The garment of Claim 23, wherein the elasticized standing leg gather has a height of from about 20 mm to about 100 mm.
32. The garment of Claim 31, wherein the leg gather has a height of from about 35 mm to about 60 mm.
33. The garment of Claim 23, wherein the elastic elements have a decitex (dtex) of between about 400 and about 1300.
34. The garment of Claim 33, wherein the dtex is between about 680 and about 940.
35. A disposable absorbent garment comprising:
a back sheet;
a top sheet;
an absorbent core at least partially disposed between the back sheet and the top sheet;
at least one longitudinally extending, elasticized standing leg gather disposed laterally from a longitudinal centerline of the garment, the at least one standing leg gather including at least one elastic element for distributing elastic contractile forces; and wherein the at least one standing leg gather has a first cycle Leg Gasketing Index at 150 % elongation of at least about 5.5 kg*mm.
36. The garment of Claim 35, wherein the at least one standing leg gather has a first cycle Leg Gasketing Index at 150% elongation of at least about 8 kg*mm.
37. The garment of Claim 35, wherein the at least one standing leg gather has a second cycle Leg Gasketing Index at 150% elongation of at least about 4.75 kg*mm.
38. The garment of Claim 35, wherein the at least one standing leg gather has a third cycle Leg Gasketing Index at 150% elongation of at least about 4.5 kg*mm.
39. The garment of Claim 35, wherein the at least one standing leg gather has a first cycle Leg Gasketing Index at 175% elongation of at least about 7.25 kg*mm.
40. The garment of Claim 39, wherein the at least one standing leg gather has a first cycle Leg Gasketing Index at 175% elongation of at least about 11 kg*mm.
41. The garment of Claim 39, wherein the at least one standing leg gather has a second cycle Leg Gasketing Index at 175% elongation of at least about 6.25 kg*mm.
42. The garment of Claim 39, wherein the at least one standing leg gather has a third cycle Leg Gasketing Index at 175% elongation of at least about 6 kg*mm.
43. The garment of Claim 39 wherein the at least one standing leg gather has a first cycle Leg Gasketing Index at 195 % elongation of at least about 9.25 kg*mm.
44. The garment of Claim 43, wherein the at least one standing leg gather has a first cycle Leg Gasketing Index at 195 % elongation of at least about 13 kg*mm.
45. The garment of Claim 43, wherein the at least one standing leg gather has a second cycle Leg Gasketing Index at 195% elongation of at least about 8.25 kg*mm.
46. The garment of Claim 43, wherein the at least one standing leg gather has a third cycle Leg Gasketing Index at 195 % elongation of at least about 8 kg*mm.
47. The garment of Claim 35, wherein the elasticized standing leg gather includes at least 5 elastic elements.
48. The garment of Claim 47, wherein the leg gather includes at least 7 elastic elements.
49. The garment of Claim 35, wherein the elasticized standing leg gather has a height of from about 20 mm to about 100 mm.
50. The garment of Claim 49, wherein the leg gather has a height of from about 35 min to about 60 mm.
51. The garment of Claim 35, wherein the elastic elements have a decitex (dtex) of between about 400 and about 1300.
52. The garment of Claim 51, wherein the dtex is between about 680 and about 940.
53. An absorbent garment comprising:
a back sheet;
a top sheet;
an absorbent core at least partially disposed between the back sheet and the top sheet;
at least one longitudinally extending standing leg gather disposed laterally from a longitudinal centerline of the garment, the at least one leg gather including a first end portion, a middle portion, and a second end portion, and the at least one standing leg gather including at least one elastic element for distributing elastic contractile forces;
wherein the first end portion, the middle portion, and the second end portion are secured to the top sheet along a first longitudinally extending bond region;
wherein the first end portion is secured by a first end bond such that the first end portion is folded over onto itself; and wherein the second end portion is secured by a second end bond such that the second end portion is folded over onto itself; and wherein the at least one standing leg gather has a first cycle Leg Gasketing Index at 195% elongation of at least about 9.25 kg*mm.
54. The garment of Claim 53, wherein the standing leg gather has a Total Leg Gasketing Index of at least about 4.75 kg*mm.
55. The garment of Claim 53, wherein the first bond region includes a continuous bond region, a first partial bond region and a second partial bond region, and wherein the continuous bond region is disposed along a substantial portion of the longitudinal extent of the standing leg gathers, the first partial bond region is disposed along a substantial portion of a longitudinal extent of the first end portion and between the continuous bond section and the longitudinal centerline, and the second partial bond region is disposed along a substantial portion of a longitudinal extent of the second end portion and between the continuous bond section and the longitudinal centerline.
56. The garment of Claim 53, wherein the standing leg gather includes at least seven elastics.
57. The garment of Claim 53, wherein the elastics are composed of LYCRA®
elastomer.
58. The garment of Claim 53, wherein the elastics have a decitex of about 400 to about 1200.
59. The garment of Claim 58, wherein the elastics have a decitex of about 680 to about 940.
60. The garment of Claim 53, wherein the middle portion of the standing leg gather has a height of about 20 mm to about 100 mm.
61. The garment of Claim 60, wherein the middle portion of the standing leg gather has a height of about 30 mm to about 70 mm.
62. A method for determining a Leg Gasketing Index of an elasticized standing leg gather, the method comprising:
obtaining a section of the standing leg gather, the section having a height and an unloaded length;
determining the height of the section of the standing leg gather;
elongating the section of the standing leg gather from the unloaded length to a first elongation;

determining a first elastic contractile force exhibited by the section of the standing leg gather at the first elongation; and calculating a first Leg Gasketing Index by multiplying the height of the section by the first elastic contractile force.
63. The method as in Claim 62, further comprising:
elongating the section of the standing leg gather from the first elongation to a second elongation;
determining a second elastic contractile force exhibited by the section at the second elongation; and calculating a second Leg Gasketing Index by multiplying the height of the section by the second elastic contractile force.

64. The method as in Claim 63, further comprising calculating an Average Leg Gasketing Index by averaging at least the first Leg Gasketing Index and the second Leg Gasketing Index.
64. The method as in Claim 62, further comprising:
relaxing the section of the standing leg gather to the unloaded length;
elongating again the section of the standing leg gather to the first elongation;
determining a second cycle elastic contractile force exhibited by the section at the first elongation;
calculating a second cycle Leg Gasketing Index by multiplying the height of the section by the second cycle elastic contractile force;
determining a Summation Leg Gasketing Index for the first elongation by summing at least the first Leg Gasketing Index and the second cycle
Leg Gasketing Index.
66. The method of Claim 65, further comprising elongating the section of the standing leg gather to a second cycle elongation greater than the first elongation prior to relaxing the section.
67. The method of Claim 66, wherein the second elongation and the second cycle elongation are 200% elongations.
68. The method of Claim 62, wherein the first elongation is selected from one or more of the group consisting essentially of a 105% elongation, a 125%
elongation; a 150% elongation, a 175% elongation, and a 195% elongation.
69. The method of Claim 62, wherein the elongation of the section and the determination of the first elastic contractile force are performed by a tensile force measurement device.
70. A method of making an absorbent garment comprising:
providing a top sheet material to a garment forming station;
providing a back sheet material to a garment forming station;
providing an absorbent core to a garment forming station;
disposing the absorbent core between the top sheet material and the back sheet material at the garment forming station; and disposing on the top sheet material at least one longitudinally extending, elasticized standing leg gather laterally from a longitudinal centerline of the top sheet material, whereby the at least one standing leg gather includes at least one elastic element for distributing elastic contractile forces, wherein the at least one standing leg gather has a mean Total Leg Gasketing Index over three elongation cycles of at least about 4.75 kg*mm.
71. The method of Claim 70, wherein the at least one standing leg gather has a mean Total Leg Gasketing Index over three elongation cycles of at least about 5.5 kg*mm.
72. The method of Claim 70, wherein the at least one standing leg gather has a mean Total Leg Gasketing Index over three elongation cycles of at least about 7 kg*mm.
73. The method of Claim 70, wherein the at least one standing leg gather has a mean Total Leg Gasketing Index over three elongation cycles of at least about 8 kg*mm.
74. The method of Claim 70, wherein the elasticized standing leg gather includes at least 5 elastic elements.
75. The method of Claim 74, wherein the leg gather includes at least 7 elastic elements.
76. The method of Claim 70, wherein the elasticized standing leg gather has a height of from about 20 mm to about 100 mm.
77. The method of Claim 76, wherein the leg gather has a height of from about mm to about 60 mm.
78. The method of Claim 70, wherein the elastic elements have a decitex (dtex) of between about 400 and about 1300.
79. The method of Claim 78, wherein the dtex is between about 680 and about 940.
CA2473695A 2002-01-16 2003-01-10 Leg gasketing index for absorbent undergarments Expired - Lifetime CA2473695C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/046,553 2002-01-16
US10/046,553 US6682516B2 (en) 2002-01-16 2002-01-16 Leg gasketing index for absorbent undergarments
PCT/US2003/000613 WO2003061525A2 (en) 2002-01-16 2003-01-10 Leg gasketing index for absorbent undergarments

Publications (2)

Publication Number Publication Date
CA2473695A1 true CA2473695A1 (en) 2003-07-31
CA2473695C CA2473695C (en) 2010-11-23

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CA2473695A Expired - Lifetime CA2473695C (en) 2002-01-16 2003-01-10 Leg gasketing index for absorbent undergarments

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US (1) US6682516B2 (en)
AU (1) AU2003202269A1 (en)
CA (1) CA2473695C (en)
MX (1) MXPA04006966A (en)
WO (1) WO2003061525A2 (en)

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WO2003061525A3 (en) 2004-03-11
US20030171731A1 (en) 2003-09-11
WO2003061525A2 (en) 2003-07-31
AU2003202269A1 (en) 2003-09-02
US6682516B2 (en) 2004-01-27
MXPA04006966A (en) 2004-11-26
CA2473695C (en) 2010-11-23

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