A polyethylene terephthalate bulked continuous filament is manufactured by steps of melt-spinning, multi-step stretching a polyethylene terephthalate chip and a master batch chip for coloring, passing through a texturing nozzle, cooling, and winding and has an elastic modulus of 1.00E+07 to 5.00E+09Pa at a temperature range of 10° C. to 200° C., the filament being manufactured by steps of melt-spinning a polyethylene terephthalate chip and a master batch chip for coloring, multi-step stretching, passing through a texturing nozzle, cooling, and winding.

The invention is an improved macrosynthetic fiber for concrete reinforcement.

Systems and methods can be used to produce fibers with external corrugations, internal corrugations, or both. These fibers can be used, for example, in hollow fiber membrane modules.

Systems and methods can be used to produce fibers with external corrugations, internal corrugations, or both. These fibers can be used, for example, in hollow fiber membrane modules.

A carpet comprising a backing and pile comprising looped or cut tufts of pile yarn attached to and extending from the backing. The pile yarn comprises un-twisted, entangled filaments. The filaments are self-crimped and optionally textured multi-component filaments. A first component of the multi-component filament comprises a first thermoplastic polymer and a second component of the multi-component filaments comprises a second thermoplastic polymer. The first and the second thermoplastic polymer have different yield behavior, whereby the multi-component filaments are self-crimping.

A carpet comprising a backing and pile comprising looped or cut tufts of pile yarn attached to and extending from the backing. The pile yarn comprises un-twisted, entangled filaments. The filaments are self-crimped and optionally textured multi-component filaments. A first component of the multi-component filament comprises a first thermoplastic polymer and a second component of the multi-component filaments comprises a second thermoplastic polymer. The first and the second thermoplastic polymer have different yield behavior, whereby the multi-component filaments are self-crimping.

The disclosed subject matter relates to a superomniphobic fiber including a core having a surface and at least one channel and a plurality of nanoparticles disposed in the material core at least partially protruding from the surface of the material core.

The disclosed subject matter relates to a superomniphobic fiber including a core having a surface and at least one channel and a plurality of nanoparticles disposed in the material core at least partially protruding from the surface of the material core.

A nonwoven fabric. The nonwoven fabric can include a first surface and a second surface and a visually discernible pattern of three-dimensional features on one of the first or second surface. Each of the three-dimensional features can define a microzone comprising a first region and a second region. The first and second regions can have a difference in values for an intensive property, and wherein in at least one of the microzones, the first region is hydrophobic and the second region is hydrophilic.

A method for producing a fiber having a pattern on a surface thereof, the method including forming a resin composition layer having a linear first pattern using a resin composition; and forming a second pattern on the resin composition layer. The second pattern may be formed by forming a thin film of a block copolymer comprising at least two block chains different from each other in surface free energy on the resin composition layer and subjecting the block copolymer to microphase separation. Alternatively, the second pattern is formed by adhering particles onto the resin composition layer.