In this disposable diaper, a compound stretchable member is provided to a waist portion, and the compound stretchable member is provided with a plurality of elastic members extending in a waist direction, and an inside nonwoven fabric sheet portion and an outside nonwoven fabric sheet portion superposed so as to be joined to each other via the elastic members. The waist portion includes a first region and a second region provided continuously with or separately from the first region in a direction orthogonal to and the waist direction, and protruding parts and recessed parts of an unevenness region are provided at a first unevenness pitch in the compound stretchable member disposed in the first region along the waist direction, and are provided at a second unevenness pitch different from the first unevenness pitch in the compound stretchable member disposed in the second region.

The methods and apparatuses herein relate to inkjet printing a substrate at a desired print resolution. A substrate advances at a first speed under the first printhead and the second printhead such that a desired print resolution exceeds the maximum print resolutions of a first printhead and a second printhead. When the substrate is advancing at the first speed, the first printhead ejects ink onto the advancing substrate at a first firing frequency to create a first printed zone, and the second printhead ejects ink onto the advancing substrate at a second firing frequency to create a second printed zone. In turn, the first printed zone and the second zone together define a printed region having the desired print resolution.

A method of manufacturing an absorbent article includes feeding a first web of material in a machine direction, feeding a second web of material in the machine direction, the second web being spaced from the first web by a gap, attaching an absorbent assembly to the first web and the second web such that the absorbent assembly spans the gap between the first and second webs, forming a partial cut line through the second web, folding the first web into face-to-face relationship with the second web after forming the partial cut line, and cutting the first and second webs after folding the first web into face-to-face relationship with the second web to separate the absorbent article from the first and second webs. The partial cut line defines at least one finger tab on the absorbent article.

The present invention discloses a method of manufacturing a diaper that has multiple moisture sensing elements on interior side of its bottom impermeable layer or on any surface of the top permeable layer. The moisture sending elements are made by spraying conductive ink on a moving sheet of either the bottom impermeable layer or the top permeable layer, before other layers of the diaper are attached. Spraying of conductive ink on the moving sheet causes parallel lines of conductive inks to be formed on the layer. The parallel lines of conductive ink run through the entire length of either of the layers and are designed to get connected with a detecting device. When a user urinates inside the diaper, the moisture causes a closed circuit between at least two of the parallel lines of conductive inks. These formations of closed circuits, between parallel lines of conductive inks, are detected by the detecting device. Also, with increasing volume of moisture, the resistance of the closed circuits also tends to decrease. This rate of decrease of resistance is also detected by the detecting device and is used to calculate a volume of moisture present in the diaper. The detecting device then generates a suitable alarm to give an idea about the saturation level of the diaper. The process of manufacturing sensing elements by spraying conductive inks on moving sheet of layer reduces the processing and modification overhead of specially designed conductive ink printers and also does not impact the manufacturing time of a diaper manufacturing assembly line.

Configurable absorbent articles are provided. The absorbent articles may comprise a topsheet, a backsheet, and an absorbent core positioned at least partially intermediate the topsheet and the backsheet. The absorbent articles may comprise a first waist region, a second waist region, a crotch region extending intermediate the first waist region and the second waist region, and an outer cover material joined to the backsheet and forming a portion of a garment-facing surface of the absorbent article. The absorbent articles may comprise a pair of leg cuffs and a fully removable fastening member. The fastening member may comprise a first fastener on a first surface of the fastening member and positioned proximate to a first end and a second fastener on the first surface and positioned proximate to a second end. The absorbent articles may also comprise a wetness guard.

Disposable absorbent articles are disclosed herein along with method of making the same. The disposable absorbent article has a topsheet, a backsheet, and an absorbent system between the topsheet and the backsheet. The absorbent system has a first absorbent core and a second absorbent core which are offset from one another. An adhesive layer is disposed between the first absorbent core and the second absorbent core, at least in part.

In order to manufacture a wearable article of the first size, the introduction velocity is set to the first introduction velocity having a high velocity and the arrangement velocity is set to the first the arrangement velocity having a high velocity. In order to manufacture wearable article of the second size having a shorter length in the carrying direction than that of the first size, the introduction velocity is set to the second introduction velocity lower than the first introduction velocity and the arrangement velocity is set to the second arrangement velocity lower than the first the arrangement velocity and the drum velocity is set to a fixed velocity regardless of the size.

The present application discloses novel hot-melt adhesive formulations, with excellent processability, even in processes at high line-speed and at a relatively low temperature, the formulations suitable for strongly bonding substrates that have openings, holes, voids or pores, both macroscopic and microscopic ones, like perforated plastic films, both with bidimensional or tridimensional structure; fibrous substrates, both woven and non-woven; porous plastic films, and the like, all mentioned substrates being widely used for the manufacturing of absorbent hygienic articles. The hot-melt formulations include, as their main or even unique constituent, at least one polymer composition formed by two polyolefins, substantially non-stereospecific, as showed by the low value of their crystallization enthalpy at time zero, the polyolefins having average Number Molecular Weights Mn that do not differ for more than about 6,000 g/mole, being the single average Number Molecular Weights of said polyolefins ranging from about 3,000 g/mole and about 30,000 g/mole.

The present invention relates to an absorbent structure, preferably for use in absorbent products, such as used in the food, consumer, household, building and construction, beauty and medical industry, and as used in the personal hygiene industry. The substantially cellulose free absorbent structures continuously immobilise absorbent polymer material via initial smaller pockets and subsequently larger compartments allowing excellent fluid management of the absorbent polymer material in dry, partially and fully liquid loaded state. Preferably such absorbent structure volume increases are result of temporary secondary attachment patterns made in combination with substantially permanent primary attachment grids allowing the release of bigger volumes from the initial smaller volumes by detachment of the secondary attachments. Furthermore the absorbent structure according to an embodiment of the invention non-homogeneously swells to form a liquid-managing surface structure as a result of exposing the absorbent structure to liquid. The present invention foresees in the need for improved flexible, thin, lightweight absorbent structures which overcome the absorbency problems of the prior art during absorption, distribution and retention of liquids with optimal fit.

Disclosed is the water-absorbent resin particles including a crosslinked polymer having a structural unit derived from an ethylenically unsaturated monomer including at least one compound selected from the group consisting of (meth)acrylic acid and a salt thereof, in which a proportion of (meth)acrylic acid and a salt thereof is 70 to 100 mol % with respect to a total amount of monomer units in the crosslinked polymer, and a dissolved content is 10% by mass or more and 40% by mass or less, and a dissolved content when the water-absorbent resin particles are pulverized so that a median particle size is 80 to 165 μm is 15% by mass or more and 40% by mass or less, where the dissolved contents are measured by a specific method.