Absorbent article with body conforming structure

Patent metadata

Field	Value
Publication number	US-11478384-B2
Application number	US-202016878012-A
Country	US
Kind code	B2
Filing date	May 19, 2020
Priority date	Oct 30, 2014
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

An absorbent article has a top sheet, a back sheet, and an absorbent assembly positioned between the back sheet and the top sheet. The absorbent article includes a fluid intake layer positioned between the absorbent assembly and the top sheet. The fluid intake layer has a rearward-facing arch located in a back portion of the fluid intake layer. The fluid intake layer has an opening. The absorbent article includes a first lateral stiffener and a second lateral stiffener extending along a majority of the longitudinal side edges of the fluid intake layer. The absorbent article includes a first flexure, a second flexure, and a third flexure in a rear portion of the absorbent article.

First claim

The invention claimed is:

1. An absorbent article comprising,
a top sheet,
a back sheet,
an absorbent assembly positioned between the back sheet and the top sheet, the absorbent assembly comprising an upper absorbent layer and a lower absorbent layer, the lower absorbent layer positioned between the upper absorbent layer and the back sheet,
a fluid intake layer positioned between the upper absorbent layer and the top sheet, the fluid intake layer defining an outer perimeter, the outer perimeter having a rearward-facing arch located in a back portion of the fluid intake layer,
the fluid intake layer having an opening, the opening defining a length in a longitudinal direction and the fluid intake layer defining a length in the longitudinal direction, wherein the opening length is 25-75% the fluid intake layer length,
a first lateral stiffener comprising an embossment in the upper absorbent layer and extending along a majority of a first longitudinal side edge of the fluid intake layer,
a second lateral stiffener comprising an embossment in the upper absorbent layer and extending along a majority of a second longitudinal side edge of the fluid intake layer,
a first flexure comprising an embossment in the upper absorbent layer and extending in a direction generally parallel to a longitudinal centerline in a rear portion of the absorbent article.

2. The absorbent article of claim 1 further comprising
a second flexure comprising an embossment in the upper absorbent layer in the rear portion of the absorbent article and spaced laterally outward in a first direction from the first flexure, the second flexure defining a first side portion of the absorbent article laterally outward in the first direction from the second flexure,
a third flexure comprising an embossment in the upper absorbent layer in the rear portion of the absorbent article and spaced laterally outward in a second direction from the first flexure, the first direction being opposite the second direction, the third flexure defining a second side portion of the absorbent article laterally outward in the second direction from the third flexure, the second flexure and the third flexure define a central portion of the absorbent article therebetween,
a first fastener attached to the garment-facing surface of the back sheet in the first side portion, and
a second fastener attached to the garment-facing surface of the back sheet in the second side portion, wherein
the garment-facing surface of the back sheet is substantially free of fasteners in the central portion.

3. The absorbent article of claim 2 wherein the first fastener is a mechanical hook material attached to the garment-facing surface of the back sheet in the first side portion and the second fastener is a mechanical hook material attached to the garment-facing surface of the back sheet in the second side portion.

4. The absorbent article of claim 2 wherein
the first fastener is applied to the garment-facing surface of the back sheet in the first side portion and at an angle relative to the longitudinal centerline and
the second fastener is applied to the garment-facing surface of the back sheet in the second side portion and at an angle relative to the longitudinal centerline.

5. The absorbent article of claim 1 wherein the fluid intake layer defines a fluid intake layer length in the longitudinal direction that is 25 to 50% an article length and the opening defines an opening length in the longitudinal direction that is 40 to 75% the fluid intake layer length.

6. The absorbent article of claim 5 wherein the fluid intake layer defines a fluid intake layer width in a lateral direction, the upper absorbent layer defines an upper absorbent layer length in a longitudinal direction and an upper absorbent layer width in the lateral direction, and the lower absorbent layer defines a lower absorbent layer length in the longitudinal direction and a lower absorbent layer width in the lateral direction, wherein
the upper absorbent layer width is greater than the lower absorbent layer width,
the upper absorbent layer width is greater than the fluid intake layer width,
the upper absorbent layer length is greater than the fluid intake layer length,
the upper absorbent layer length is greater than the lower absorbent layer length,
the fluid intake layer length is less than the lower absorbent layer length, and
the fluid intake layer width is less than the lower absorbent layer width.

7. An absorbent article defining comprising,
a top sheet,
a back sheet,
an absorbent assembly positioned between the top sheet and the back sheet, the absorbent assembly comprising an upper absorbent layer and a lower absorbent layer, the lower absorbent layer positioned between the upper absorbent layer and the back sheet,
a fluid intake layer positioned between the upper absorbent layer and the top sheet, the fluid intake layer being positioned in a central portion of the absorbent article and defining an outer perimeter, the outer perimeter having a rearward-facing arch located in a back portion of the fluid intake layer, the rearward-facing arch defining a length in a longitudinal direction of 7-10 mm,
the fluid intake layer having an opening, the opening defining a length in the longitudinal direction and the fluid intake layer defining a length in the longitudinal direction, wherein the opening length is 25-75% the fluid intake layer length,
a first embossment in the upper absorbent layer extending along a majority of a first side edge of the fluid intake layer,
a second embossment in the upper absorbent layer extending along a majority of a second side edge of the fluid intake layer,
a first flexure comprising an embossment in the upper absorbent layer in a rear portion of the absorbent article and extending in a direction generally parallel to a longitudinal centerline,
a second flexure comprising an embossment in the upper absorbent layer in the rear portion of the absorbent article and spaced laterally outward in a first direction from the first flexure, the second flexure defining a first side portion of the absorbent article laterally outward in the first direction from the second flexure, the second flexure diverging rearward relative to the longitudinal centerline,
a third flexure comprising an embossment in the rear portion of the upper absorbent layer and spaced laterally outward in a second direction from the first flexure, the first direction being opposite the second direction, the third flexure defining a second side portion of the absorbent article laterally outward in the second direction from the first flexure, the third flexure diverging rearward relative to the longitudinal centerline, the second and third flexures defining a central portion there between, and
a fastening system attached to the garment-facing surface of the back sheet, the fastening system covering a majority of a front portion of the garment-facing surface of the back sheet, the fastening system comprising,
a first fastener positioned on the garment-facing surface of the back sheet in the first side portion,
a second fastener positioned on the garment-facing surface of the back sheet in the second side portion, and
the central portion of the garment-facing surface of the back sheet is substantially free of fasteners.

8. The absorbent article of claim 7 wherein the first fastener and the second fastener are continuous hook materials that extend from the front portion through the central portion and into the rear portion.

9. The absorbent article of claim 7 wherein the second flexure includes a first return portion converging rearward at a first angle relative to the longitudinal centerline and the third flexure includes a

Assignees

• Kimberly Clark Co

Inventors

• Schmoker Suzanne Marie
• Hopkins Heidi Bauerlein
• Park Sohyun Sara
• Olson Christopher Peter

Classifications

• A61F13/4756 Primary

  the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level · CPC title

• A61F13/472 Primary

  specially adapted for female use · CPC title

• A61F13/625

  characterised by the hook · CPC title

• A61F13/47272 Primary

  with a longitudinal raised end, e.g. cup-shaped gluteal groove (for edge leakage prevention A61F13/494) · CPC title

• A61F2013/530481

  having superabsorbent materials, i.e. highly absorbent polymer gel materials · CPC title