A nozzle assembly includes an upstream block, an upstream shim, an intermediate shim, a downstream shim and a downstream block arranged in this order in a machine direction MD from the upstream side to the downstream side. A lower end of the nozzle is formed with grooves as guide grooves to support elastics. A first pipe, a dispersion slit for a web and convergence slits for a web define first flow channels wherein the slits are respectively formed with outlets for a web. A second pipe, a dispersion slit for elastics and convergence slits for elastics define a second flow channels wherein the slits are respectively formed with outlets for elastics. The outlets for elastics are formed in the respective guide grooves and each of the outlets for a web lies between each pair of the adjacent outlets for elastics as viewed in the cross direction CD.

Aspects of the methods and apparatuses relate to making elastic laminates, and more particularly, methods and apparatuses for applying elastic material in a curved path onto an advancing substrate. The elastic material may be in various forms, such as for example, elastic strands and/or ribbons. Apparatuses and methods disclosed herein may also provide for the application of viscous fluids, such as adhesives, in pre-determined patterns to the elastic material while being positioned on an advancing substrate.

A method for manufacturing an underpants-type wearable article where a joining defect of an elastic stretchable member can be easily checked. The method includes: a rubber-thread-sandwiching-step; a continuous-body-forming-step of forming continuous bodies of front and backside waist members; a side-fusing-step of joining both side portions of the front and back members to each other by side fusing using a pair of side fusing portions; a rubber-thread-cutting-step of cutting the rubber threads of the respective continuous bodies of the front and back members at a protruding portion of a boundary region which becomes a boundary of individual wearable article; a joining-state-inspection-step of inspecting a joining state of the rubber threads to a pair of nonwoven fabric; and a continuous-body-cutting-step of obtaining individual wearable articles by cutting the respective continuous bodies of the front and back member at the protruding portion of the boundary region.

A transversally extensible elastic laminar web including a support web having a continuous edge portion sandwiched between two corresponding edge portions of two overlapped webs and a plurality of tabs extending from the edge portion outside the two overlapped webs, wherein each tab has a respective micro-hook pad fixed to a planar surface, and wherein the planar surface of each tab has a portion which completely surrounds the respective micro-hook pad.

A transversally extensible elastic laminate including two continuous tab chains having respective continuous base portions sandwiched between two corresponding edge portions of two overlapped webs and a plurality of tabs extending from the respective base portions outside the two overlapped webs, wherein each tab has a respective micro-hook pad fixed to a planar surface, and wherein the planar surface of each tab has a portion which completely surrounds the respective micro-hook pad.

A guiding device of an apparatus for producing sanitary articles for applying at least one thread onto a substrate intended for producing these sanitary articles, in which said guiding device is able to guide the thread quickly, accurately, and stably without being subject to wear and contamination problems, while ensuring reduced energy consumption. The present invention also relates to a method for applying a thread onto a substrate intended to produce sanitary articles.

An ultrasonic processing system adapted to subject a web running in a machine direction to ultrasonic processing includes a first mechanical element defined by one of an ultrasonic horn and an anvil and a second mechanical element defined by a remainder. The web placed on an outer peripheral surface of a rotary drum moves conforming to the drum in a machine direction. The first mechanical element is provided on the inner side of the drum and the second mechanical element is provided on the outer side of the drum. The first and second mechanical elements repeat a step of forward movement and a step of backward movement in a direction intersecting the machine direction across the web. In both steps, the first and second mechanical elements come in close contact with each other by the intermediary of the web and thereby subject the web to the ultrasonic processing.

The present disclosure relates to methods and apparatuses for assembling absorbent articles that include leg cuff gasketing assemblies. As discussed in more detail below, each leg gasketing assembly may be formed from elastic laminates having stretched elastic strands intermittently bonded thereto. As such, the elastic laminate includes bonded regions and non-bonded regions intermittently spaced along the machine direction. The elastic strands are then intermittently deactivated by severing the strands in the non-bonded regions of the continuous elastic laminate to form continuous lengths of leg gasketing assemblies having elastic regions and deactivated regions. The continuous lengths of leg gasketing assemblies may then bonded to a continuous topsheet substrate. In some embodiments, the elastic laminate may be combined with the topsheet substrate before severing the strands in the non-bonded regions.

An absorbent article is provided with a central elastic material for positioning in a state in which it is extended in the front/rear direction in the outer direction in relation to an absorbent body, and an elastic material cover sheet which abuts the outer direction side surface of the central elastic material. The elastic material cover sheet covers an extension region where the central elastic material is positioned in an extended state, and a non-extension region where the central elastic material is positioned in a non-extended state. An adhesive agent for fixing in the extended state is coated onto the central elastic material of the extension region. An adhesive agent is coated onto at least the non-extension region of the outer direction side surface of the elastic material cover sheet, and the adhesive agent coated onto the outer direction side surface penetrates to the inner direction side surface of the elastic material cover sheet.

A series of elastic break brakes are provided throughout a travel path of elastics in a machine operation. Elastic strands thread through each individual brake mechanism, and if an elastic strand breaks downstream, a natural snap back of the elastic, which ordinarily travels through the system under tension, drives an immediately upstream cam mechanism back, and holds the elastic thread in place at the elastic break brake immediately upstream of the break as to minimize rethreading required downstream of the elastic break brake.