US 11,179,277 B2Granted

Absorbent article

AssigneeUnicharm Corporation

InventorsSatoru Sakaguchi, Maika Takahashi

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Abstract

An absorbent article has front and back surface sheets, and an absorbent body disposed within the front surface sheet and back surface sheet laminate. The absorbent article is further provided with a stretchable waist member disposed within the laminate in a manner enabling stretching in the width direction. The stretchable waist member is disposed between the absorbent body and the front surface sheet in the thickness direction and is joined to the front surface sheet. A portion of the stretchable waist member overlaps with and touches the absorbent body in the thickness direction but is not joined thereto, and the portion of the stretchable waist member that does not overlap with the absorbent body in the thickness direction is joined to the back surface sheet.

Claims8

Dependent claims

An absorbent article comprising a front sheet, a back sheet and an absorbent body disposed in a laminate of the front sheet and the back sheet, and having a lengthwise direction, a widthwise direction and a thickness direction,

the absorbent article comprising:
a waist expandable-and-shrinkable member that is expandable and shrinkable in an expansion-and-shrink direction and is disposed between the front sheet and back sheet in the laminate so that the expansion-and-shrink direction is along the widthwise direction;
wherein
the waist expandable-and-shrinkable member is disposed between the absorbent body and the front sheet in the thickness direction, and
the waist expandable-and-shrinkable member includes
a first portion overlapping the absorbent body in the thickness direction, the first portion having a non-skin side surface in contact with but non-bonded to the absorbent body and a skin side surface bonded to the front sheet, and
a second portion not overlapping with the absorbent body in the thickness direction, the second portion having a non-skin side surface bonded to the back sheet and a skin side surface bonded to the front sheet.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/095,701Filed 13 Jan 2017
Priority: JP JP2016-09494310 May 2016
Published: US 2019/0142653 A116 May 2019
Granted: 23 Nov 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61F 13/49011
With elastic means: the elastic means is located at the waist region
A61F 13/15739
Mechanical treatment, e.g. notching, twisting, compressing, shaping: sealing, e.g. involving cutting
A61F 13/49014
With elastic means: the elastic means is located at the side panels
A61F 13/49413
The edge leakage prevention means being at the crotch region: the edge leakage prevention means being an upstanding barrier

Family

US 2019/0142653 A1Pre-grant publication · published 16 May 2019
US 11,179,277 B2This patent

From the US filing history. Foreign family members aren’t listed.

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