A61F13/15699

PARTICLE ENTRAINED AIR-PERMEABLE STRUCTURES
20170348157 · 2017-12-07 ·

A method is provided, for dissipating and entrapping super absorbent polymer particles (11, 12, 13, 14) within air-permeable, non-woven structures (100), for use in the construction of absorbent articles (600). The method comprises the steps of: (i) of constructing an air-permeable, non-woven structure (100) comprising at least first (1), second (2) and third (3) layers of non-woven fabric, each said layer having void spaces of differing size defined therein; (ii) dispersing absorbent particles (11, 12, 13, 4) onto an external surface (10) of the highest numbered layer of said air-permeable, non-woven structure (100) formed in step (i); and (iii) dissipating the dispersed absorbent particles (11, 12, 13, 14) within the air-permeable, non-woven structure (100) by applying an external energy source acting upon the absorbent particles (11, 12, 13, 14) in a direction substantially normal to the plane of the external surface (10) of the air-permeable, non-woven structure (100).

METHOD AND DEVICE FOR MANUFACTURING WORN ARTICLE
20170348160 · 2017-12-07 ·

A method including: a step of carrying first and second continuous webs in a carrying direction; a step of folding the continuous webs in two; a first attachment step, in which portions of first edges, which extend in the carrying direction of the continuous webs and which are to be leg holes of a worn article, are attached together intermittently in the carrying direction; a step of straightening, in a width direction, creases on one of the continuous web after the first attachment step; and a second attachment step, in which the continuous webs are attached together at least at portions along second edges opposite to the first edges, with the creases being straightened.

Absorbent Article Having Stretchable Panels and Method of Making Same

An absorbent article includes bond seams that are positioned forwardly towards the article central longitudinal direction from the lateral-most side edges of the article, and which are aligned with the highest point of high rise leg openings on the article. The absorbent article is conformable on both front and back panels, with the front panel being narrower in dimension than the back panel. The bond seams and leg openings can be seen on the front surface of the relaxed and flattened absorbent article. Such absorbent article may be manufactured along the article transverse direction by use of differential tension during manufacture, or differential retractive properties of elastic base materials.

APPARATUS AND METHOD OF MANUFACTURING AN ELASTIC COMPOSITE STRUCTURE FOR AN ABSORBENT SANITARY PRODUCT

An apparatus for manufacturing an elastic composite structure for an absorbent sanitary product includes an anvil with weld pattern comprising at least one anchoring region and at least one deactivating region. The anchoring region includes anchoring welds that form anchoring bonds that fuse facing web layers and anchor elastic thread(s) in position relative to the facing web layers. The deactivating region includes a break bar constructed to sever the thread(s). A method of manufacturing the elastic composite structure includes positioning a tensioned elastic thread between web layers, fusing the web layers to form an anchored zone that includes anchoring bonds that fuse the web layers and anchor the tensioned elastic thread therebetween, and cutting the thread to form a deactivated zone between adjacent portions of the anchored zone that is free of tensioned threads. The method further includes fusing the web layers within the deactivated zone.

METHOD FOR PRODUCING CUFFS FOR WEARABLE ARTICLE
20230181380 · 2023-06-15 ·

The present cuff manufacturing method includes: a step of sandwiching at least two continuous elastic members F between a first sheet and a second sheet; a step of thermally-bonding together the first sheet and the second sheet intermittently in the longitudinal direction to form thermally-bonded portions, thereby fixing the continuous elastic members, thus forming a laminate; a slit step of slitting the laminate along the longitudinal direction, thereby obtaining a pair of cuff members; a step of conveying the pair of cuff members so that a pair of edges, which have been produced by the slitting in the pair of cuff members, are spaced apart from each other; and a step of arranging the pair of cuff members on opposite edge portions of a crotch portion of a worn article, thereby forming cuffs.

Rotary Anvil

The rotary anvils herein may be used in combination with a tool member to perform various types of manufacturing operations, such as cutting, bonding, and embossing. The anvil roll may include a cylindrically-shaped outer circumferential surface and may be adapted to rotate about a first axis of rotation. More particularly, the anvil roll may include a body formed from a first material, such as a metallic material. The body may also include grooves in the outer circumferential surface, and abrasion resistant material may be fused to the body to fill the grooves to form strips. During operation, a tool member may be positioned to contact the strips of abrasion resistant material.

Method for manufacturing disposable worn article
11672707 · 2023-06-13 · ·

The method of the present invention includes the steps of: arranging a plurality of non-continuous sheets of a predetermined length intermittently and successively in the conveyance direction on the continuous sheet so that the continuous elastic members are sandwiched between the non-continuous sheets and the continuous sheet; in an overlapping area where the non-continuous sheets overlap with the continuous sheet, attaching the continuous sheet and the non-continuous sheets to each other by welding the sheets to each other in a predetermined pattern, thus producing a continuous laminate; and in a non-overlapping area where the non-continuous sheets do not overlap with the continuous sheet, heating the continuous sheet in the same pattern as said pattern.

Absorbent article with low cold flow construction adhesive
09827344 · 2017-11-28 · ·

Absorbent articles comprising a low cold flow construction adhesive suitable for joining at least two absorbent article components together, wherein the adhesive comprises an ethylene-based polyolefin resin and a crystallization enhancer, wherein at least one of the absorbent article components comprises a nonwoven material, and wherein the absorbent articles have an in-bag compression opening force of less than about 0.75N. Also, a method for assembling such articles.

ABSORBENT ARTICLES COMPRISING STRETCH LAMINATES

An absorbent article includes a chassis comprising 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 a stretch laminate having layers that are joined by ultrasonic bonding. The stretch laminate has at least one cover layer, an elastomeric film attached to the cover layer, the elastomeric film having two surfaces and a skin on at least one of the surfaces. The stretch laminate has at least one anchoring zone and at least one stretch zone. A portion of the skin is located in the anchoring zone and has a plurality of wrinkles, and the wrinkles have furrows.

Apparatuses and methods for transferring and bonding substrates

A method and apparatus for mechanically deforming a substrate assembly. The substrate assembly may be advanced in a machine direction at a first velocity toward a bonder apparatus. The bonder apparatus may rotate about an axis of rotation and include a support surface between each of a first and a second member. The first member and the second member may be separated by a repitch angle. The second member may be repositioned such that the first member and the second member are separated by a product angle. The first member may receive a leading portion and second member may receive a trailing portion of the substrate assembly and each member may rotate at the first velocity. The leading portion and the trailing portion are separated by a product arc length, which may be equal to a process product pitch. The substrate assembly may then undergo one or more processes such as bonding, cutting, and/or scoring.