An absorbent article including a non-woven substrate of one or more layers of meltblown fibers and a first layer of spunbond fibers and a second layer of spunbond fibers. The absorbent article further includes an absorbent core comprising at least one of fibers or a superabsorbent polymer. At least one of the non-woven substrate or the absorbent may be treated with an alcohol repellency (AR) treatment.

The present layered stretchable sheet includes: a plurality of attachment portions at which a pair of non-woven fabrics and a film are thermally bonded together, wherein each one of the attachment portions includes at least one thermal bonding area where the pair of non-woven fabrics and the film are thermally bonded together; at least one boundary line that defines the thermal bonding area; a first vent that is defined by a first opening of the film appearing in a stretched state of the film along the boundary line and that exerts air permeability; and a second vent that is defined by a second opening where a part of the film is absent, the second opening being adjacent to the thermal bonding area and being delimited by the boundary line, wherein the second vent exerts air permeability both in the stretched state and in a non-stretched state.

An underpants-type disposable diaper includes outer members 12F and 12B having stretchable regions A2 and A3 disposed adjacent to the inner edges of the side seal portions 12A in the width direction. The stretchable regions A2 and A3 include multiple elongated elastically stretchable members 19 disposed between two sheet layers 12S and 12H at predetermined intervals in the front-back direction and extending in the width direction. The elastically stretchable members 19 each include two fixed ends 19f fixed to the two sheet layers 12S and 12H, and the section between the fixed ends 19f is unfixed to the two sheet layers 12S and 12H. The two sheet layers 12S and 12H are welded into sheet bonding sections 20, at positions between the elastically stretchable members 19 in the stretchable regions A2 and A3 adjacent is the front-back direction. No sheet bonding section protrudes from the side seal portion in the stretchable regions A2 and A3.

An absorbent article comprising a top-surface sheet, a second sheet, and an absorber interposed between the top-surface sheet and the second sheet. The absorbent article allows a body fluid absorbed by the top-surface sheet to move to a non-skin side without deteriorating a soft touch feeling of cotton. The top-surface sheet 3 has a multi-layer structure including a non-heat fusible layer 10 made of a cellulose fiber and arranged on a skin side and a heat-fusible layer 11 made of a heat-fusible fiber and arranged on the non-skin side. The second sheet 6 made of a heat-fusible fiber is arranged on the non-skin side of the top-surface sheet 3. A large number of compressed parts 15 are formed on the non-skin side of the second sheet 6 by integrally recessing the second sheet 6 and the top-surface sheet 3 toward the skin side.

A stretchable structure of an absorbent article has a first sheet layer made of a nonwoven fabric; a second sheet layer made of a nonwoven fabric and opposed to one side surface of the first sheet layer; and a plurality of elongated elastically stretchable members provided along the stretchable direction at intervals from each other between the first sheet layer and the second sheet layer. The first sheet layer and the second sheet layer have sheet bonded portions bonded via a hot melt adhesive disposed in a striped pattern that is intermittent in the longitudinal direction of the elastically stretchable members and continuously elongated in the direction intersecting with the elastically stretchable members, and either one of the first sheet layer and the second sheet layer is made of a low-adhesion nonwoven fabric having lower peel strength with respect to the hot melt adhesive than the other sheet layer.

In order to prevent degradation of appearance, prevent a decrease in flexibility, and improve non-elasticity in a non-stretchable region in an elastic film stretchable structure, the invention is characterized by having an elastic film stretchable structure (20X) formed by stacking an elastic film (30) between a first sheet layer (20A) and a second sheet layer (20B), wherein a region having the elastic film stretchable structure (20X) includes a non-stretchable region (70) and a stretchable region (80) provided at least at one side of the non-stretchable region (70) in a stretching and contracting direction, the stretchable region (80) being stretchable in the stretching and contracting direction, the first sheet layer (20A) and the second sheet layer (20B) are joined via through holes (31) penetrating the elastic film (30) at the large number of sheet bond portions (40) arranged at intervals, and the non-stretchable region (70) does not have a section in which the elastic film (30) linearly continues along the stretching and contracting direction, due to presence of the through holes (31), even though the elastic film (30) continues in the stretching and contracting direction.

In order to prevent degradation of appearance, prevent a decrease in flexibility, and improve non-elasticity in a non-stretchable region in an elastic film stretchable structure, the invention is characterized by having an elastic film stretchable structure (20X) formed by stacking an elastic film (30) between a first sheet layer (20A) and a second sheet layer (20B), wherein a region having the elastic film stretchable structure (20X) includes a non-stretchable region (70) and a stretchable region (80) provided at least at one side of the non-stretchable region (70) in a stretching and contracting direction, the stretchable region (80) being stretchable in the stretching and contracting direction, the first sheet layer (20A) and the second sheet layer (20B) are joined via through holes (31) penetrating the elastic film (30) at the large number of sheet bond portions (40) arranged at intervals, and the non-stretchable region (70) does not have a section in which the elastic film (30) linearly continues along the stretching and contracting direction, due to presence of the through holes (31), even though the elastic film (30) continues in the stretching and contracting direction.

An absorbent article comprises a layered structure with an absorbent material sandwiched between at least two layers of the structure, and at least one elongate tab. Each elongate tab comprises an attached portion by which the tab is attached to a first layer of the layered structure and a fastening portion provided for releasably engaging a landing zone on the absorbent article. Each tab is made of a predetermined material which is deformable by an energy source. The attached portion comprises a plurality of surface protrusions integrally formed of said material, each of said surface protrusions comprising a base portion and a head portion above the base portion. The attached portion is attached to said layer by deformed head portions of at least some of said surface protrusions. In a method for manufacturing such article, the attachment involves deforming head portions of the surface protrusions

In order to prevent degradation of appearance, prevent a decrease in flexibility, and improve non-elasticity in a non-stretchable region in an elastic film stretchable structure, the invention is characterized by having an elastic film stretchable structure (20X) formed by stacking an elastic film (30) between a first sheet layer (20A) and a second sheet layer (20B), wherein a region having the elastic film stretchable structure (20X) includes a non-stretchable region (70) and a stretchable region (80) provided at least at one side of the non-stretchable region (70) in a stretching and contracting direction, the stretchable region (80) being stretchable in the stretching and contracting direction, the first sheet layer (20A) and the second sheet layer (20B) are joined via through holes (31) penetrating the elastic film (30) at the large number of sheet bond portions (40) arranged at intervals, and the non-stretchable region (70) does not have a section in which the elastic film (30) linearly continues along the stretching and contracting direction, due to presence of the through holes (31), even though the elastic film (30) continues in the stretching and contracting direction.

An absorbent article, containing a topsheet, a backsheet, and an absorbent body interposed between the topsheet and the backsheet, in which the topsheet has an arrangement portion of a liquid film cleavage agent in a thickness intermediate position.