US 12,295,821 B2
Absorbent article with a lower intermediate layer partially bonded to the absorbent core
Adrien Grenier, Frankfurt am Main (DE); Ernesto Gabriel Bianchi, Hessen (DE); Aniruddha Chatterjee, Kelkheim (DE); Matthias Konrad Hippe, Sulzbach (DE); Andrea Peri, Kronberg (DE); Udo Friedel Schoenborn, Bad Soden (DE); Abhishek Prakash Surushe, Kelkheim (DE); Amy Lynn Tally, Cold Spring, KY (US); and Maik Tremel, Schwalbach (DE)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Jul. 27, 2021, as Appl. No. 17/386,082.
Claims priority of provisional application 63/058,525, filed on Jul. 30, 2020.
Prior Publication US 2022/0031528 A1, Feb. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 13/536 (2006.01); A61F 13/15 (2006.01); A61F 13/534 (2006.01)
CPC A61F 13/536 (2013.01) [A61F 13/15203 (2013.01); A61F 2013/15373 (2013.01); A61F 2013/15406 (2013.01); A61F 2013/15552 (2013.01); A61F 2013/1591 (2013.01); A61F 2013/5349 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An absorbent article comprising:
a liquid permeable topsheet;
a liquid impermeable backsheet;
an absorbent core comprising an absorbent material and a core wrap, wherein the absorbent material is sandwiched between a top side and a bottom side of the core wrap, and the absorbent core further comprises one or more channel forming areas which are free of absorbent material;
an intermediate layer between the absorbent core and the backsheet, the intermediate layer having a basis weight of more than 20 gsm;
wherein a wearer-facing side of the intermediate layer and the bottom side of the core wrap are only partially bonded to each other, their interface thus comprising a bonded portion and an unbonded portion, and wherein the one or more channel-forming areas are in the unbonded portion;
wherein at least 50% of a surface of a garment-facing side of the intermediate layer is bonded to the backsheet;
wherein at least one of the one or more channel forming areas forms a three-dimensional channel when the absorbent material swells;
wherein the top side and the bottom side of the core wrap are bonded to each other in the one or more channel-forming areas; and
wherein the intermediate layer can decouple from the three-dimensional channel when the absorbent material swells.