Advances in actuating fabrics could enable a paradigm shift in the field of smart wearables by dynamically fitting themselves to the unique topography of the human body. Active fabrics and fitting mechanisms are described herein that enable garments to conform around surface concavities without requiring high elasticity or a multiplicity of closure devices. Advanced materials and systems innovations (1) enable novel garment manufacturing and application strategies, (2) facilitate topographical fitting (spatial actuation) through garment architectural design, and (3) provide tunable NiTi-based SMA actuation temperatures to enable actuation on the surface of human skin. Such fabrics and garments are usable in a variety of fields including medical compression, technical sportswear, exosuits, space suits and components thereof, or non-garment applications.

Aspects herein are directed to a moisture wicking and perspiration concealing knit spacer textile and garments formed therefrom that includes a first knit layer formed from yarns that have been treated with a durable water repellant (DWR) finish prior to being formed into the first knit layer and a second knit layer formed from yarns that have been treated with a wicking finish prior to being formed into the second knit layer. The first knit layer and the second knit layer are interconnected by tie yarns. When the textile is formed into the garment, the second knit layer is configured to be positioned adjacent to a skin surface of a wearer and the first knit layer forms an outer-facing surface of the garment.

Included are multiple component elastic fibers prepared by a solution-spinning process such as dry spinning or wet spinner of spandex fibers including polyurethaneurea and polyurethane compositions. These fibers have a cross-section including at least two separate regions with definable boundaries wherein at least one region defined by the boundaries of the cross-section includes a polyurethaneurea or polyurethane composition. One region of the fiber includes a fusibility improvement additive to enhance adhesion to itself or to a substrate.

Included are multiple component elastic fibers prepared by a solution-spinning process such as dry spinning or wet spinner of spandex fibers including polyurethaneurea and polyurethane compositions. These fibers have a cross-section including at least two separate regions with definable boundaries wherein at least one region defined by the boundaries of the cross-section includes a polyurethaneurea or polyurethane composition. One region of the fiber includes a fusibility improvement additive to enhance adhesion to itself or to a substrate.

A lacrosse mesh with elastic portions is provided. Elastic portions of the lacrosse mesh may be formed along one or more vertical paths along a length of the lacrosse mesh. In some embodiments, the vertical paths along the length of the mesh having elastic properties may be symmetrical about a center of the mesh, or in other embodiments may not be symmetrical. The invention includes lacrosse mesh and goalie lacrosse mesh. The lacrosse mesh may be displaced in response to receiving a thrown ball or by a ball during a throwing motion of a lacrosse stick with the lacrosse mesh with elastic portions coupled to the head of the lacrosse stick.

A lacrosse mesh with elastic portions is provided. Elastic portions of the lacrosse mesh may be formed along one or more vertical paths along a length of the lacrosse mesh. In some embodiments, the vertical paths along the length of the mesh having elastic properties may be symmetrical about a center of the mesh, or in other embodiments may not be symmetrical. The invention includes lacrosse mesh and goalie lacrosse mesh. The lacrosse mesh may be displaced in response to receiving a thrown ball or by a ball during a throwing motion of a lacrosse stick with the lacrosse mesh with elastic portions coupled to the head of the lacrosse stick.

The present invention relates to a polyurethane urea elastic yarn having improved dyeability and a manufacturing method therefor. Through a process of forming a prepolymer by mixing polyethyleneglycol with polyol and then adding diisocyanate to the same in a prepolymer manufacturing step during the manufacture of a polyurethane urea elastic yarn, the hydrophilicity of the polyurethane urea elastic yarn is improved such that the accessibility of an acid dye is enhanced, thereby enabling the dyeability of the polyurethane urea elastic yarn to be enhanced and an advantage of dye color deepening of a fabric, in which nylon and a polyurethane urea elastic yarn are knitted together, to be expected.

The present invention relates to a polyurethane urea elastic yarn having improved dyeability and a manufacturing method therefor. Through a process of forming a prepolymer by mixing polyethyleneglycol with polyol and then adding diisocyanate to the same in a prepolymer manufacturing step during the manufacture of a polyurethane urea elastic yarn, the hydrophilicity of the polyurethane urea elastic yarn is improved such that the accessibility of an acid dye is enhanced, thereby enabling the dyeability of the polyurethane urea elastic yarn to be enhanced and an advantage of dye color deepening of a fabric, in which nylon and a polyurethane urea elastic yarn are knitted together, to be expected.

Embodiments of the disclosure provide systems and methods for producing and using a plaited fabric comprising a low-melt yarn for adhering the fabric without a glue adhesive. According to one embodiment, a knitted fabric can comprise a first polymeric yarn of a first material, the first polymeric yarn forming a base of the knitted fabric, and a second polymeric yarn of a second material. The second material can be different from the first material and can have a lower melting temperature than the first material. The first polymeric yarn can be knitted with the second polymeric yarn to form the fabric. Upon an application of heat to the knitted fabric, the second polymeric yarn can form an adhesive and cohesive mechanical attachment to itself and form a tight-knit structural bond within the fabric without the use of a glue adhesive.

Embodiments of the disclosure provide systems and methods for producing and using a plaited fabric comprising a low-melt yarn for adhering the fabric without a glue adhesive. According to one embodiment, a knitted fabric can comprise a first polymeric yarn of a first material, the first polymeric yarn forming a base of the knitted fabric, and a second polymeric yarn of a second material. The second material can be different from the first material and can have a lower melting temperature than the first material. The first polymeric yarn can be knitted with the second polymeric yarn to form the fabric. Upon an application of heat to the knitted fabric, the second polymeric yarn can form an adhesive and cohesive mechanical attachment to itself and form a tight-knit structural bond within the fabric without the use of a glue adhesive.