Leg gasketing index for absorbent undergarments
First Claim
Patent Images
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.
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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.
130 Citations
71 Claims
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1. A disposable absorbent garment comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A disposable absorbent garment comprising:
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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. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A disposable absorbent garment comprising:
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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. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A disposable absorbent garment comprising:
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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. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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53. An absorbent garment comprising:
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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. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61)
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62. A method of making an absorbent garment comprising:
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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. - View Dependent Claims (63, 64, 65, 66, 67, 68, 69, 70, 71)
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Specification