The present invention is directed to a reactive dye-dyeable polyurethane-urea elastic yarn including a reaction product of at least two polyols, a diisocyanate compound, a diamine chain extender, an amine chain terminator, and a diethylenetriamine compound, wherein one of the polyols is polyethylene glycol, which is included in an amount of 20 to 30.0 mol % based on the total amount of the polyols, a polyurethane-urea polymer includes 10 meq/kg to 45 meq/kg of primary amine ends, and the capping ratio (CR) of the diisocyanate to the polyols is 1.8 to 2.0.

A color-changing fiber that can be incorporated into fabrics and other woven materials. The color changing fibers are hollow and include at least two wire electrodes that provide an electrical potential across an electro-optic medium including a non-polar solvent and at least one set of charged particles.

Aspects herein are directed to braided articles and methods for their manufacture. The braided articles may include articles of footwear having braided uppers. The article of footwear may comprise a sole and a braided upper comprising a toe portion having a toe seam, a heel portion comprising a seamless braided structure, and a throat portion. The toe portion may comprise a base yarn. The throat portion may comprise a stretch yarn. Additionally, the heel portion may comprise both the stretch yarn and the base yarn.

Nonwoven webs comprising a water insoluble -(1,3.fwdarw.glucan) polymer and methods of forming the nonwoven webs are disclosed. The water insoluble -(1,3.fwdarw.glucan) polymer comprises 90% or greater -1,3-glycosidic linkages, less than 1% by weight of -1,3,6-glycosidic branch points, a number average degree of polymerization in the range of from 55 to 10,000, and a ratio of apparent DPw to true DPw in the range of from 2 to 10. The nonwoven webs can be used for personal hygiene wipes, filtration media, apparel, or other uses.

A coaxial nanocomposite including a core, which includes fibers of a first organic polymer, and a shell, which includes fibers of a second organic polymer, the first polymer and the second polymer forming a heterojunction.

The present invention relates to fiber jamming systems capable of tuning tensile stiffness of soft systems within seconds without the use of high voltage or temperature changes. The systems employ segmented fibrils of interspersed segments of stretchable and non-stretchable materials. Applying a vacuum to the fibrils in an enclosed volume elicits a large interfacial shear resistance to tensile displacement. In the absence of a vacuum, the fibrils are free to stretch and bend in any direction.

The present disclosure relates to a spinneret for producing hollow fiber membranes in a phase inversion process.

Provided is a hyaluronate non-woven fabric made of hyaluronate fibers and a method of manufacturing the same. More particularly, the present invention relates to a highly functional hyaluronate non-woven fabric made of hyaluronate fibers having a rough surface and a micro-size diameter and a method of manufacturing the same. A hyaluronate non-woven fabric manufacturing method according to the present invention includes preparing hyaluronate fibers, treating the hyaluronate fibers to be curled, cutting the curled hyaluronate fibers, forming a hyaluronate web from the curled hyaluronate fibers, and needle-punching the hyaluronate web. The hyaluronate non-woven fabric of the present invention has a high hyaluronate content, is manufactured by needle punching high-strength hyaluronate fibers, and has excellent adhesion and tensile strength. Therefore, the hyaluronate non-woven fabric of the present invention can be used as a mask pack for external application on the skin, a biomaterial for tissue repairing, and an anti-adhesion coating material.

Cross-linked fibers include first and second precursors, each possessing a core and at least one functional group known to have click reactivity when exposed to UV radiation. Mixtures of the first and second precursors are extruded to produce a filament and irradiated with UV light during the extrusion process.

Disclosed herein are methods of curing silicon carbide precursor polymer fibers, such as polysilazanes, using moisture and free radical generators, such as peroxides. Also disclosed are methods of forming, curing, and using silicon carbide precursor polymers that contain alkenyl groups and free radical generators, such as peroxides.