US 12,419,794 B2
Disposable absorbent hygiene product comprising absorbent assembly
Edward Guidotti, Gothenburg (SE); and Rikard Vilhelm Meyer Noren, Gothenburg (SE)
Assigned to ESSITY HYGIENE AND HEALTH AKTIEBOLAG, Gothenburg (SE)
Appl. No. 17/040,776
Filed by Essity Hygiene and Health Aktiebolag, Gothenburg (SE)
PCT Filed Mar. 26, 2018, PCT No. PCT/EP2018/057656
§ 371(c)(1), (2) Date Sep. 23, 2020,
PCT Pub. No. WO2019/185111, PCT Pub. Date Oct. 3, 2019.
Prior Publication US 2021/0000661 A1, Jan. 7, 2021
Int. Cl. A61F 13/535 (2006.01); A61F 13/49 (2006.01); A61F 13/53 (2006.01)
CPC A61F 13/535 (2013.01) [A61F 13/49007 (2013.01); A61F 2013/530051 (2013.01); A61F 2013/5307 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A disposable absorbent hygiene product comprising:
a main part having a body facing surface intended to face a body of a user and a garment facing surface intended to face away from the body of the user,
the main part comprising a liquid permeable topsheet at the body facing surface, a liquid impermeable backsheet at the garment facing surface, and an absorbent assembly arranged between said topsheet and said backsheet, said main part having a front end and a back end, and defining a longitudinal direction from said front end towards said back end and defining a transversal direction perpendicular to the longitudinal direction,
wherein the absorbent assembly has a longitudinal length of from 500 to 1000 mm and a transversal width of from 200 to 450 mm, and is divided by two, imaginary, transversally extending lines into a front region towards said front end, having a longitudinal length of from 10 to 40% of the longitudinal length of the absorbent assembly; a back region towards said back end, having a longitudinal length of from 10 to 40% of the longitudinal length of the absorbent assembly; and a central region between said front region and said back region, the front, back and central regions being non-overlapping,
wherein in the front and back regions, the absorbent assembly comprises cellulosic fibers mixed with super absorbent polymers, with a super absorbent polymer concentration of from 0 to 30 weight %, based on a total weight of cellulosic fibers and super absorbent polymer, and a cellulosic fiber basis weight of from 50 to 200 g/m2;
wherein said absorbent assembly comprises:
a first absorbent core, an entirety of which comprises cellulosic fibers mixed with super absorbent polymers, with a super absorbent polymer concentration of from 0 to 30 weight %, and having a cellulosic fiber basis weight of from 50 to 200 g/m2, said first absorbent core extending over an entirety of the longitudinal length of the absorbent assembly, and
a second absorbent core smaller than the first absorbent core in the longitudinal direction and positioned in said central region and in stacked relationship with said first absorbent core, the first absorbent core being closer to the body facing surface than the second absorbent core; and
wherein said central region provides from 70% to 100% of a total retention capacity of the absorbent assembly.