B29C66/433

METHOD AND APPARATUS FOR PRODUCING ELASTIC LAMINATES
20220001592 · 2022-01-06 ·

A method and apparatus for producing elastic laminates wherein a first and a second elastic film are stretched in the transverse direction by respective spreader devices, and are applied on a transfer wheel which—in turn—applies the first and second elastic films on a non-woven web held on the outer cylindrical surface of an anvil wheel.

Method and apparatus for manufacturing absorbent sanitary products and an absorbent sanitary product

A method for manufacturing absorbent sanitary products, comprising the steps of: forming a first and a second continuous elastic band, which are movable parallel to each other in a machine direction, fixing a plurality of absorbent panels between said first and second continuous elastic bands, arranged in a direction transverse to the machine direction, and spaced apart in said machine direction, wherein each of said elastic bands is formed by means of a method comprising the steps of: continuously feeding a plurality of tensioned elastic threads (30) in said machine direction, continuously feeding a pair of non-elastic webs arranged on opposite sides of said plurality of elastic threads, welding said pair of non-elastic webs to each other by means of a welding pattern comprising anchoring welds and/or containing and guiding welds.

Battery cell and exterior packaging material

A method of forming a package is provided and includes providing two laminate edge portions of the package, each of which includes a foil layer between first and second resin layers; and welding together the respective first resin layers at a first position spaced apart from the edges while not welding the respective first resin layers at the edges, wherein the edge portions include edges from which electrode terminals extend such that portions of the electrode terminals are exposed beyond the edges, and wherein the edge portions are between a sealing portion and exposed portions of positive and negative electrode terminals.

Thermally laminated tab liner
11787153 · 2023-10-17 · ·

Liner having an induction heat sealable layer for sealing to a rim of a container, and a pull tab for ease of removal of the liner from the container rim. An insert is disposed between multilayer upper and lower components, has a heat bondable polyolefin layer that is thermally laminated to polyolefin layers of the upper and lower components, forming a pull tab between the integrated polyolefin layers. The resulting composite resists delamination and can be formed in a single thermal lamination step, avoiding the multiple lamination steps, associated high equipment costs, and complex layer constructions of the prior art.

Secondary Battery, and Apparatus and Method for Manufacturing Secondary Battery

A secondary battery includes: an electrode assembly; an electrode lead; a battery case with an accommodation portion for the electrode assembly and a sealing portion sealing the accommodation portion; and a lead film. The sealing portion includes a connection-sealing region connected to the accommodation portion, a front end-sealing region, and a reinforcement-sealing region therebetween. The reinforcement-sealing region includes a compressed surface, provided in the sealing portion between the connection-sealing region and the front end-sealing region and recessed into the sealing portion, and raised surfaces, provided in the sealing portion between the connection-sealing region and the compressed surface and between the front end-sealing region and the compressed surface and each of which is formed thicker than the compressed surface. The battery case has a resin layer, a metal layer, and an insulating layer. The resin layer of the raised surface is formed thicker than the resin layer of the compressed surface.

Absorbent article and method for manufacturing same
11771602 · 2023-10-03 · ·

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.

DEVICE AND METHOD FOR MANUFACTURING LAYERED SHEET
20230294391 · 2023-09-21 ·

A layered body containing continuous sheets is thermally fused when passing through a space between an anvil roll and an energy applying device to form a layered sheet. A nip stage for sandwiching the layered body is provided upstream of the space between the anvil roll and the energy applying device. The nip stage includes at least one displacement member which is displaced in accordance with the thickness of the layered body sandwiched by the nip stage. Whether the thickness of the layered body sandwiched by the nip stage has deviated from a reference range is detected on the basis of the displacement of the displacement member, and when it is detected that the thickness has deviated from the reference range, the energy applying device is caused to retreat in a direction going away from the anvil roll.

Curved elastic with entrapment
11744744 · 2023-09-05 · ·

An apparatus for manufacturing an elastic composite structure is provided. The apparatus includes an anvil having a face with a first edge and a second edge separated in a cross-machine direction and a first contact surface extending out from the face, the first contact surface including a first notch. The first notch has an interior configured to receive a portion of an elastic thread and a portion of a web layer therein, and the first notch includes a first facing surface and a second facing surface defining at least a portion of the interior. Each of the first facing surface and the second facing surface are in a non-perpendicular orientation relative to the first contact surface and angled toward the first edge of the face.

METHOD AND APPARATUS FOR ASSEMBLING ABSORBENT ARTICLES
20230157900 · 2023-05-25 ·

The present disclosure relates to assembling elastic laminates that may be used to make absorbent article components. Methods herein may include an anvil adapted to rotate about an axis of rotation, wherein first and second spreader mechanisms adjacent the anvil roll are axially and angularly displaced from each other with respect to the axis of rotation. During the assembly process, a substrate may be advanced in a machine direction onto the rotating anvil. The first spreader mechanism stretches a first elastic material in the cross direction, and the second spreader mechanism stretches a second elastic material in the cross direction. The stretched first and second elastic materials advance from the spreader mechanisms and onto the substrate on the anvil roll. The combined and elastic materials may then be ultrasonically bonded together on the anvil to form at least one elastic laminate.

Sensor device, method of manufacturing sensor device, and vehicle seat

A sensor device has an insulative non-woven fabric and a conductive fabric forming an electrode. The conductive fabric is joined to one surface of the non-woven fabric by at least one of fusion and seaming.