An absorbent article for wearing about the lower torso of a wearer includes a first waist region having a first waist edge, a second waist region having a second waist edge, and a crotch region disposed between the first and second waist regions. The article further includes a first longitudinal edge, a second longitudinal edge, and a chassis comprising a topsheet, a backsheet, and an absorbent core disposed between the topsheet and backsheet. A waist gasketing element is disposed in one of the first or the second waist regions and joined to the chassis in a chassis attachment region. The waist gasketing element comprises an outboard lateral edge and an inboard lateral edge. The chassis attachment region comprises a first zone proximate to the outboard lateral edge and a second zone disposed longitudinally inboard of the first zone. Each of the first and the second zones comprise one or more chassis attachment bonds. The first zone comprises a first total basis weight and the second zone comprises a second total basis weight, wherein the second total basis weight is greater than the first total basis weight.

Disclosed is an absorbent article continuous in a longitudinal direction and a transverse direction comprising a front elastic belt region, a back elastic belt region, a crotch region, a waist opening and two leg openings; the front and back elastic belt regions being a laminate comprising an inner sheet made of nonwoven fiber, and an outer sheet made of nonwoven fiber, and a plurality of elastic bodies configured to stretch the front and back elastic belt regions in the transverse direction, the outer sheet having a material caliper of at least about 0.25 mm at 500. Pa; the article further comprising a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet; the absorbent core existing through the entire longitudinal dimension of the crotch region and extending at least partly in the back elastic belt region; the back elastic belt region having a maximum caliper MaxBC and a minimum caliper MinBC according to the measurements herein, wherein the difference between the MaxBC and the MinBC is no greater than about 5 mm.

The present disclosure relates to methods for making elastomeric laminates that may be used as components of absorbent articles. The elastomeric laminates may include a first substrate, a second substrate, and an elastic material located between the first and second substrates. During assembly of an elastomeric laminate, a beam is rotated to unwind the elastic strands from the beam, wherein the strands may include a spin finish. First bonds are applied to bond discrete lengths of the stretched elastic strands with and between the first substrate and the second substrate, wherein the discrete first bonds are arranged intermittently along the machine direction. In addition, second bonds are applied between consecutive first bonds to bond the first and second substrates directly to each other, wherein the second bonds extend in the machine direction and may be separated from each other in a cross direction by at least one elastic strand.

An absorbent article includes a chassis includes a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet, and at least one elastically elongatable panel joined to the chassis. The elastically elongatable panel includes an ultrasonically bonded stretch laminate. The stretch laminate includes a first nonwoven and a second nonwoven, and an elastomeric film sandwiched between the first and second nonwovens. The elastomeric film has two surfaces and a skin on at least one of the surfaces. The stretch laminate further incudes a zone that is unactivated. The laminate is elastically extensible in a stretch direction. The elastomeric film includes activation stripes.

An absorbent article for wearing about the lower torso of a wearer includes a first waist region having a first waist edge, a second waist region having a second waist edge, and a crotch region disposed between the first and second waist regions. The article further includes a first longitudinal edge, a second longitudinal edge, and a chassis comprising a topsheet, a backsheet, and an absorbent core disposed between the topsheet and backsheet. A waist gasketing element is disposed in one of the first or the second waist regions and joined to the chassis in a chassis attachment region. The waist gasketing element comprises an outboard lateral edge and an inboard lateral edge. The chassis attachment region comprises a first zone proximate to the outboard lateral edge and a second zone disposed longitudinally inboard of the first zone. Each of the first and the second zones comprise one or more chassis attachment bonds. The first zone comprises a first total basis weight and the second zone comprises a second total basis weight, wherein the second total basis weight is greater than the first total basis weight.

The present disclosure relates to absorbent articles with waist panels configured with physical properties for mitigating assembly complications. In some configurations, a waist panel comprises a longitudinal bending stiffness with peak load of at least about 0.19 N; a machine direction web modulus at 2% of at least about 72 N/%; a tensile load at peak of at least about 7 N/cm, as measured according to a MD tensile test; and/or a thickness of least about 0.4 mm, as measured according to Thickness Test. Such physical properties may help prevent and/or reduce instances of manufacturing problems and/or defective products during assembly by: enhancing the ability to consistently cut desired machine direction lengths of waist panels; reducing the possibility of a waist panel to undesirably fold back onto itself during assembly; enhancing the ability to absorb heat without damage and more consistently transfer discrete elastic parts between transformation apparatuses.

A wearable article production method for a stretchable sheet having partially weakened stretchability includes a welding step of ultrasonically welding two sheet bodies and an elastic film to each other at plural joints separated from each other in a predetermined transport direction in a region including a predetermined attachment location by transporting a sheet laminate formed by sandwiching the elastic film in an elongated state between the two sheet bodies in the transport direction so that the sheet laminate passes between an anvil roll and an ultrasonic horn to form a stretchable sheet; a weakening step of forming weakened regions, where stretchability of the elastic film is weakened, at least at a part of the attachment location in the stretchable sheet after the welding step; and an attachment step of attaching an absorbent main body to the attachment location so that the absorbent main body overlaps the weakened regions.

An absorbent article has a front region, a back region, and a crotch region extending between and connecting the front region and the back region. A non-rectangular absorbent core is located in the absorbent article wherein a portion of the absorbent core is positioned in an overlapping relationship with an elastic material located in at least one of the front region or back region. The non-rectangular absorbent core has a narrowest width dimension in the transverse direction of the absorbent article which is offset from each of the transverse axis of the absorbent article and the narrowest width of the absorbent article. Longitudinally extending elastic material located in the crotch region of the absorbent article is positioned in a spaced apart relationship to the longitudinal direction side edges of the absorbent core.

In one example, a method of fabricating a product, such as a diaper, includes a step of folding a substrate of the product to form a plurality of pleats in the substrate. The method includes a step of applying a liquified elastic to the substrate such that the liquified elastic adheres to the substrate and extends across the plurality of pleats. The method includes a step of allowing the liquified elastic to solidify on the substrate.

Ultrasonic welding is performed by passing a first sheet layer, a second sheet layer, and an elastic film interposed therebetween in a stretched state in a machine direction between an anvil roll having a large number of protrusions and an ultrasonic horn. The anvil roll includes a region having the protrusions and in the region. A site, in which welding is performed by one ultrasonic horn, has a portion in which an area rate of the protrusions changes in a roll circumferential direction and a roll length direction. A difference between a maximum value and a minimum value in a change of the area rate of the protrusions in the roll circumferential direction is 4.5% or less, and a difference between a maximum value and a minimum value in a change of the area rate of the protrusions in the roll length direction is 1.5% or less.