A method for preparing a shoe shell using a twice-opening-mold shoe-making mold comprises steps of preparing rubber for the shoe shell and cutting the rubber for the shoe shell into elongated or square sizes; heating the twice-opening-mold shoe-making mold to required temperatures within 3 hour; and opening the twice-opening-mold shoe-making mold with the bottom mold of the twice-opening-mold shoe-making mold being opened in a direction away from the mold main body of the twice-opening-mold shoe-making mold; putting the rubber for the shoe shell into the twice-opening-mold shoe-making mold; closing the bottom mold towards the mold main body, lifting the mold inner edge of the twice-opening-mold shoe-making mold to be stored into the mold main body until the bottom mold and the mold main body are closed, and performing a heating for 2-8 minutes; separating the bottom mold from the mold main body periodically during heating; reopening the twice-opening-mold shoe-making mold; taking out a semi-finished shoe shell; and trimming the semi-finished shoe shell.

Provided is a shoe sole having a structure in which a polyhedral hollow cell made of a synthetic resin, configured as a polyhedron, and having an empty space formed therein is bonded with other polyhedral hollow cells by a hot melt adhesive part, wherein the hot melt adhesive part is provided between the multiple polyhedral hollow cells so that no voids are formed therebetween, and a plane structure of the polyhedral hollow cells bonded with each other has a shape of a human sole.

This document discloses a process for manufacturing recyclable injection molded microcellular foams for use in, footwear components, seating components, protective gear components, and watersport accessories. The process includes the steps of providing a thermoplastic polymer which comprises at least one monomer derived from depolymerized post-consumer plastic, inserting a fluid into a barrel of a molding apparatus. The fluid is introduced under temperature and pressure conditions to produce a super critical fluid. The process further includes mixing the thermoplastic polymer and super critical fluid so as to create a single phase solution, and injecting the single phase solution into a mold of an injection molding machine under gas counter pressure. The process further includes foaming the single phase solution by controlling the head and temperature conditions within the mold.

Foamed articles including a foamed thermoplastic elastomeric material, methods of making the foamed articles, and methods for manufacturing articles of footwear, apparel, and athletic equipment incorporating such foamed articles are provided. In one aspect, a method for making a foamed article comprises placing an article comprising a foamable material and carbon dioxide in a vessel, maintaining the vessel at a first pressure and first temperature at which the carbon dioxide is a liquid and carbon dioxide is soluble in the foamable material, optionally exposing the infused article to a second temperature and second pressure, and subjecting the article to a third pressure and third temperature at which the infused carbon dioxide phase transitions to a gas, thereby expanding the foamable material into a foamed material and forming the foamed article.

Upper components for footwear include: (a) a first upper component that includes a first layer having a first material as a first filament including first plural, non-intersecting, spaced apart path segments (wherein the first filament has a width dimension of less than 3 mm wide (and in some examples, less than 2 mm wide, less than 1.5 mm wide, less than 1 mm wide, or even less than 0.75 mm wide)); and (b) a second upper component including a fabric element formed at least in part of a fusible material, wherein the fusible material of the second upper component is fused to the first material of the first upper component (e.g., in an adhesive-free manner). Additional layers of material, including additional layers including filament and/or fabric elements, e.g., of the types described above, may be included in the upper.

Methods for manufacturing three-dimensional components of articles, including articles of footwear, apparel, and sporting equipment are provided. The disclosed methods comprise providing a first composition comprising a plurality of foam particles suspended in a liquid polymerizable composition, polymerizing a first portion of the liquid polymerizable composition to form a first layer of polymeric material at least partially encapsulating a first portion of the plurality of foam particles, repeating the polymerizing and forming for at least a second and third iteration, each iteration forming a layer on the previous layer, thereby forming a three-dimensional component having at least three layers, each layer including foam particles at least partially encapsulated by the first polymeric material. Articles manufactured using the disclosed methods are also provided.

A method for manufacturing a sole assembly of an article of footwear includes injecting a first material into a first mold to forming a first component. A second material is injected into a second mold to form a second component in the second mold. The first component is formed from a first material and includes a first plurality of channel elements. The second component is formed from a second material and includes a second plurality of channel elements. Each of the first plurality of channel elements is aligned with a corresponding one of the second plurality of channel elements, and the first component is secured to the second component to form an initial sole assembly.

The present disclosure is related to three-dimensionally printed articles for use in footwear and associated systems and methods. In some embodiments, a three-dimensionally printed article may comprise a closed-cell foam. The closed-cell foam may have a gradient in and/or may be a single integrated material. In some embodiments, a three-dimensionally printed article may comprise a sensor. The use of such arrangements can, according to certain embodiments, allow for the production of improved articles of footwear and/or customized articles of footwear.

The present disclosure is related to three-dimensionally printed articles for use in footwear and associated systems and methods. In some embodiments, a three-dimensionally printed article may comprise a closed-cell foam. The closed-cell foam may have a gradient in and/or may be a single integrated material. In some embodiments, a three-dimensionally printed article may comprise a sensor. The use of such arrangements can, according to certain embodiments, allow for the production of improved articles of footwear and/or customized articles of footwear.

An article of footwear has a tubular structure. The tubular structure may include tab portions that extend away from a tunnel portion of the tubular structure. The tab portions may engage parts of the article of footwear. The tab portions may engage an upper or sole structure along a bite line. The tab portions may be attached to a heel counter, eyestay, or other structure on the article of footwear.