Disposable pant-type absorbent article

Patent metadata

Field	Value
Publication number	US-11051997-B2
Application number	US-201716496672-A
Country	US
Kind code	B2
Filing date	Mar 28, 2017
Priority date	Mar 28, 2017
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

A disposable pant-type absorbent article, such as a pant diaper, a sanitary pant or incontinence pant is described. The disposable pant-type absorbent article has a longitudinal direction (Y) and a transverse direction (X). The disposable pant-type absorbent article is adapted for a male user. A method for manufacturing such a disposable pant-type absorbent article is also described.

First claim

The invention claimed is:

1. A disposable pant-type absorbent article having a longitudinal direction (Y) and a transverse direction (X), said disposable pant-type absorbent article being adapted for a male user and comprising:
a front panel made of laminated web material and having a front waist edge, a pair of front leg edges and a pair of front side edges,
a back panel having a back waist edge, a pair of back leg edges, a pair of back side edges, and
an absorbent insert located mainly in a crotch portion of the absorbent article and being connected to the front panel and the back panel and having an absorbent core with longitudinal core edges, a front core edge, and a back core edge,
wherein the core has a front segment with a front segment length in the longitudinal direction (Y) which is 30% of the total length of the core in the longitudinal direction (Y) and extending from a front core edge, a back segment with a back segment length in the longitudinal direction (Y) which is 30% of the total length of the core in the longitudinal direction (Y) and extending from the back core edge, and a middle segment with a middle segment length (L 4 ) in the longitudinal direction (Y) which is 40% of the total length of the core in the longitudinal direction (Y) and being located between the front segment and the back segment,
wherein the absorbent core has a wide portion in the front segment, which wide portion has a wide portion width in the transverse direction (X) that is at least 1.1 times greater than a back maximal width in the transverse direction (X) of the core in the back segment,
wherein the laminated web material of the front panel has a first at least partly elastic region extending primarily in the transverse direction and being located adjacent the leg edges of the front panel, and a second at least partly elastic region extending primarily in the transverse direction and being located next to the first at least partly elastic region and closer to the front waist edge of the front panel,
wherein the first at least partly elastic region is distinct from the second at least partly elastic region in terms of an at least one structural elastic feature making the first at least partly elastic region distinct from the second at least partly elastic region,
wherein either (a) an elasticised part of the laminated web material of the first at least partly elastic region, or (b) an inner imaginary extension of the elasticised part of the laminated web material of the first at least partly elastic region, meets a longitudinal core edge of said wide portion of the front segment of the core,
wherein the wide portion extends a first longitudinal distance corresponding to at least 20% of the length of the front segment of the core below a position where either (a) the elasticised part of the laminated web material of the first at least partly elastic region, or (b) the inner imaginary extension of the elasticised part of the laminated web material of the first at least partly elastic region, meets the longitudinal core edge, and
wherein the wide portion extends a second longitudinal distance corresponding to at least 20% of the length of the front segment of the core above the position where either (a) the elasticised part of the laminated web material of the first at least partly elastic region, or (b) the inner imaginary extension of the elasticised part of the laminated web material of the first at least partly elastic region, meets the longitudinal core edge.

2. The disposable pant-type absorbent article according to claim 1 , wherein the at least one structural elastic feature making the first at least partly elastic region distinct from the second at least partly elastic region comprises at least one of the following:
the elasticised part of the laminated web material of the first at least partly elastic region has a higher tensile stress at a given elongation in the transverse direction (X) than an elasticised part of the laminated web material of the second at least partly elastic region;
the spacing between neighbouring elastic threads;
the mass density of the elastic threads; or
the level of elongation of the elastic threads with the front panel in a flat and un-gathered state.

3. The disposable pant-type absorbent article according to claim 1 , wherein the front segment of the core has an area which is at least 1.1 times greater than an area of the back segment of the core.

4. The disposable pant-type absorbent article according to claim 1 , wherein the wide portion in the front segment has a length in the longitudinal direction (Y) in the range of 30-200 millimetres.

5. The disposable pant-type absorbent article according to claim 1 , wherein the wide portion has a length in the longitudinal direction (Y) in the range of 20-130% of the length of the front segment of the core.

6. The disposable pant-type absorbent article according to claim 1 , wherein the wide portion of the core has the wide portion width in the transverse direction (X) that is at least 1.2 times greater than the back portion maximal width in the transverse direction of the core in the back segment.

7. The disposable pant-type absorbent article according to claim 1 , wherein the elasticised part of the laminated web material of the first at least partly elastic region extends from an outer end adjacent one of the pair of side edges of the front panel to an inner end located spaced apart from the core, and the inner imaginary extension of the elasticised part of the laminated web material of the first at least partly elastic region extends linearly from the inner end of a linear portion of the elasticised part of the laminated web material of the first at least partly elastic region, or extends tangentially from an inner end of a curved portion of an elasticised part of the laminated web material of the first at least partly elastic region.

8. The disposable pant-type absorbent article according to claim 1 , wherein a width of the core adjacent the front core edge, in the transverse direction (X), is constant over a longitudinal extent of the core in the longitudinal direction (Y), and is smaller than the width of the core in the transverse direction (X) in the rest of the front segment of the core.

9. The disposable pant-type absorbent article according to claim 1 , wherein a width of the core adjacent the front core edge in the transverse direction (X) is equal to a width of at least part of the core in the back segment of the core in the transverse direction (X).

10. The disposable pant-type absorbent article according to claim 1 , wherein an elasticised part of the laminated web material of the second at least partly elastic region extends over an area of the front segment of the absorbent core, which area of the front segment extends from the front core edge in the longitudinal direction (Y) by less than or equal to 30 mm, such that the front core edge is configured to be pressed towards a user during use of the absorbent article.

11. The disposable pant-type absorbent article according to claim 1 , wherein the front segment is configured for receiving the genitals of a male user, wherein elasticised parts of the laminated web material of the first at least partly elastic region extends on transverse sides of the front segment but not completely over the front segment for enabling the absorbent core in the front segment to bulge outwardly during use of the article, wherein the absorbent article further comprises at least one elongated side elastic element attached in a substantially longitudinal direction on each transverse side of the front segment for providing a side gathering effect along the transverse sides of the f

Assignees

• Essity Hygiene & Health Ab

Inventors

• Bäck Lucas
• Olsson Anna Klinte
• Eriksson Katarina

Classifications

• A61F13/471 Primary

  specially adapted for male use · CPC title

• A61F13/53

  characterised by the absorbing medium (A61F13/20 takes precedence) · CPC title

• A61F13/4915 Primary

  specially adapted for male use · CPC title

• A61F13/15699

  Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs · CPC title

• A61F13/496

  in the form of pants or briefs · CPC title