Front or rear opening closed-sided absorbent articles

Patent metadata

Field	Value
Publication number	US-11883268-B2
Application number	US-201816330896-A
Country	US
Kind code	B2
Filing date	May 23, 2018
Priority date	May 31, 2017
Publication date	Jan 30, 2024
Grant date	Jan 30, 2024

Abstract

Absorbent articles with front and rear opening features are disclosed. An article may comprise an insert comprising an outer cover, a liner, and a core between the outer cover and liner, a first waist panel coupled to the insert throughout a first attachment region, and a second waist panel coupled to the insert throughout a second attachment region, the second panel being coupled to the first panel proximate a first side edge of the article and the second side edge of the article and further comprising a weakened region. The second attachment may comprise a low-strength attachment zone and a high-strength attachment zone, the high-strength attachment zone disposed proximate the attachment region bottom edge. The low-strength attachment zone may further have a first peel strength and the high-strength attachment zone may have a second peel strength, the second peel strength greater than the first.

First claim

What is claimed is:

1. An absorbent article including front region, a crotch region, and a rear region, the article having a first side edge and a second side edge and further comprising:
an absorbent insert comprising an outer cover, a liner, and an absorbent core disposed between the outer cover and the liner;
a first waist panel coupled to the absorbent insert throughout a first attachment region; and
a second waist panel coupled to the absorbent insert throughout a second attachment region, the second waist panel being coupled to the first waist panel proximate the first side edge of the absorbent article and the second side edge of the absorbent article and further comprising a weakened region,
wherein the second attachment region comprises an attachment region top edge, an attachment region bottom edge, attachment region longitudinal side edges, and an overall attachment region area,
wherein the second attachment region further comprises a low-strength attachment zone and a high-strength attachment zone, the high-strength attachment zone being disposed proximate the attachment region bottom edge, and
wherein the low-strength attachment zone has a first peel strength and the high-strength attachment zone has a second peel strength, the second peel strength being greater than the first peel strength.

2. The absorbent article of claim 1 , wherein the second attachment region comprises a first adhesive disposed throughout the low-strength attachment zone.

3. The absorbent article of claim 2 , wherein the second attachment region comprises a second adhesive disposed throughout the high-strength attachment zone, and wherein the second adhesive is different than the first adhesive.

4. The absorbent article of claim 3 , wherein the first adhesive has a drop time of less than 4 hours in the Static Shear Test Method, and wherein the second adhesive has a drop time of greater than or equal to 4 hours in the Static Shear Test Method.

5. The absorbent article of claim 2 , wherein the first adhesive is disposed throughout at least a portion of the high-strength attachment zone.

6. The absorbent article of claim 2 , wherein the first adhesive is disposed throughout the entire high-strength attachment zone.

7. The absorbent article of claim 2 , wherein the high strength attachment zone is comprised of a plurality of bonds.

8. The absorbent article of claim 7 , wherein a bonded surface area of the bonds within the high-strength attachment zone comprises between about 25% and about 75% of the surface area of the high-strength attachment zone.

9. The absorbent article of claim 1 , wherein the first peel strength is less than or equal to 4 N, according to the Angled Peel Test Method, and wherein the second peel strength is greater than or equal to 8 N, according to the Angled Peel Test Method.

10. The absorbent article of claim 1 , wherein the high-strength attachment zone is disposed proximate one of the attachment region longitudinal side edges.

11. The absorbent article of claim 1 , wherein the second attachment region comprises a first high-strength attachment zone and a second high-strength attachment zone, the first high-strength attachment zone disposed proximate a first attachment region longitudinal side edge and the second high-strength attachment zone disposed proximate a second attachment region longitudinal side edge.

12. The absorbent article of claim 1 , wherein the attachment region bottom edge further comprises at least one recess, wherein:
the at least one recess comprises a first recess side edge, a second recess side edge, and a recessed edge,
the first recess side edge is located a distance between 15% and 40% of the overall attachment region width from the first attachment region longitudinal side edge, and
the second recess side edge is located a distance between 15% and 40% of the overall attachment region width from the second attachment region longitudinal side edge.

13. The absorbent article of claim 11 , wherein the second attachment region comprises a first high-strength attachment zone and a second high-strength attachment zone, the first high-strength attachment zone disposed proximate the attachment region bottom edge and the second high-strength attachment zone disposed proximate the attachment region top edge.

14. An absorbent article including front region, a crotch region, and a rear region, the article having a first side edge and a second side edge and further comprising:
an absorbent insert comprising an outer cover, a liner, and an absorbent core disposed between the outer cover and the liner;
a first waist panel coupled to the absorbent insert throughout a first attachment region; and
a second waist panel coupled to the absorbent insert throughout a second attachment region and comprising a weakened region, the second waist panel being coupled to the first waist panel proximate the first side edge of the absorbent article and the second side edge of the absorbent article,
wherein the second attachment region comprises an attachment region top edge, an attachment region bottom edge, attachment region longitudinal side edges, and overall attachment region area, and
wherein the second attachment region further comprises an adhesive-less region extending in a longitudinal direction and wherein the weakened region overlaps the adhesive-less region, and wherein the adhesive-less region has an adhesive-less region width, the adhesive-less region width being between about 8 mm and about 22 mm.

15. The absorbent article of claim 14 , wherein the adhesive-less region has an adhesive-less region width, the adhesive-less region width being between about 12 mm and about 18 mm.

16. The absorbent article of claim 14 , wherein the second attachment region further comprises a low-strength attachment zone and a high-strength attachment zone, the high-strength attachment zone being disposed proximate the attachment region bottom edge,
wherein a peel strength of the low-strength attachment zone is less than or equal to 4 N, according to the Angled Peel Test Method, and
wherein a peel strength of the high-strength attachment zone is greater than or equal to 8 N, according to the Angled Peel Test Method.

17. An absorbent article including front region, a crotch region, and a rear region, the article having a first side edge and a second side edge and further comprising:
an absorbent insert comprising an outer cover, a liner, and an absorbent core disposed between the outer cover and the liner;
a first waist panel coupled to the absorbent insert throughout a first attachment region; and
a second waist panel coupled to the absorbent insert throughout a second attachment region and comprising a weakened region, the second waist panel being coupled to the first waist panel proximate the first side edge of the absorbent article and the second side edge of the absorbent article,
wherein the second attachment region comprises an attachment region top edge, an attachment region bottom edge, attachment region longitudinal side edges, and overall attachment region area,
wherein the second attachment region further comprises a low-strength attachment zone, a first high-strength attachment zone, and a second high-strength attachment zone, the first high-strength attachment zone and the second high-strength attachment zone each being disposed proximate the attachment region bottom edge and one of the attachment region longitudinal side edges,
wherein the low-strength attachment zone has a first peel strength and the high-strength attachment zone has a second peel stren

Assignees

• Kimberly Clark Co

Inventors

• Johnson Beth
• Kleuskens Sarah
• Niedt James R
• Barriger Kyle M
• Morin Jr Marc A
• Ray Thomas A
• Thorson Timothy A
• Stevens Victor

Classifications

• A61F13/84

  Accessories, not otherwise provided for, for absorbent pads · CPC title

• A61F2013/585

  being spot like · CPC title

• A61F13/64

  Straps, belts, ties or endless bands ({A61F13/5605, A61F13/5622}, A61F13/66 take precedence) · CPC title

• A61F2013/49087

  having breakable lateral stitches or panels · CPC title

• A61F13/496 Primary

  in the form of pants or briefs · CPC title