Provided is a strand from which a modeled object with excellent impact strength can be easily formed by a 3D printer and a modeled object with excellent impact strength. A strand of the present disclosure is a strand used as a raw modeling material for a 3D printer, the strand including a base material containing thermoplastic resin as a main component and one or more fibers or fiber bundles impregnated in the base material and extending in an axial direction and the strand being twisted along the axial direction.

An anti-cutting rubber-coated yarn includes a yarn body and a mixed rubber layer coated on the yarn body. A plurality of tiny pits is distributed on a surface of the yarn body, and the mixed rubber layer is attached in the tiny pits and is coated on an outside of the yarn body. According to the present invention, numerous tiny pits are made by etching on the surface of the existing yarn body, and simultaneously, molecular bonds on the surface of the yarn body are broken. In a dipping process, molecular bonding occurs between the rubber and the yarn body while the tiny pits are filled with the rubber and the tiny hard particles, thereby further enhancing adsorption fastness of the mixed rubber layer.

Provided is the method for manufacturing a three-dimensional structure with a less amount of internal voids or bubbles, and also to provide a 3D printer filament used for manufacturing such three-dimensional structure. The method for manufacturing a three-dimensional structure, the method comprises melting and depositing a filament using a 3D printer, the filament comprising a commingled yarn that contains a continuous reinforcing fiber (A) and a continuous thermoplastic resin fiber (B), with a dispersity of the continuous reinforcing fiber (A) in the commingled yarn of 60 to 100%.

A yarn or thread may include a plurality of substantially aligned filaments, with at least ninety-five percent of a material of the filaments being a thermoplastic polymer material. Various woven textiles and knitted textiles may be formed from the yarn or thread. The woven textiles or knitted textiles may be thermal bonded to other elements to form seams. A strand that is at least partially formed from a thermoplastic polymer material may extend through the seam, and the strand may be thermal bonded at the seam. The woven textiles or knitted textiles may be shaped or molded, incorporated into products, and recycled to form other products.

A woven textile includes, in at least one of the warp or weft directions, non-flocked yarns and flocked yarns. The flocked yarns include a support yarn having a core covered with an adhesive layer. The support yarn has a base diameter. Protruding filaments provide the flocked yarns with an apparent diameter. The non-flocked yarns have a diameter which is smaller than the apparent diameter and larger than the base diameter of the flocked yarns.

A woven textile includes, in at least one of the warp or weft directions, non-flocked yarns and flocked yarns. The flocked yarns include a support yarn having a core covered with an adhesive layer. The support yarn has a base diameter. Protruding filaments provide the flocked yarns with an apparent diameter. The non-flocked yarns have a diameter which is smaller than the apparent diameter and larger than the base diameter of the flocked yarns.

A strand production apparatus configured to produce a fiber reinforced resin strand having one or a plurality of fiber bundles including reinforcing fibers includes a twisting unit, a resin bath unit, and a winding unit. The twisting unit rotates the one or the plurality of fiber bundles around an axis of the one or the plurality of fiber bundles to form one or a plurality of twisted fiber bundles. In the resin bath unit, the one or the plurality of twisted fiber bundles are impregnated with a molten resin to form a fiber reinforced resin strand. The winding unit winds the fiber reinforced resin strand. The twisting unit is disposed on an upstream side of the resin bath unit in a conveying direction of the one or the plurality of fiber bundles.

A strand production apparatus configured to produce a fiber reinforced resin strand having one or a plurality of fiber bundles including reinforcing fibers includes a twisting unit, a resin bath unit, and a winding unit. The twisting unit rotates the one or the plurality of fiber bundles around an axis of the one or the plurality of fiber bundles to form one or a plurality of twisted fiber bundles. In the resin bath unit, the one or the plurality of twisted fiber bundles are impregnated with a molten resin to form a fiber reinforced resin strand. The winding unit winds the fiber reinforced resin strand. The twisting unit is disposed on an upstream side of the resin bath unit in a conveying direction of the one or the plurality of fiber bundles.

A heat curable, circular knitted fabric includes reinforcing and meltable resin fibers that can be cured to form a more rigid material form. In one embodiment, the fabric includes a core spun yarn, wherein the core may be made from glass, carbon, basalt, aramid or metal. The wrap surrounding the core may include resin type fibers such as Poly(p-phenylene sulfide) PPS, Polyetherimide (PEI), Polyether ether ketone (PEEK), Polysulfone (PES), Polyphthalamide (PPA), nylon, polyester, or polypropylene.

Fibers, yarns, woven fabric including the yarns and fibers, and methods of manufacturing the same are disclosed. Fibers can include base material staple fibers and dissolvable or water-soluble fibers that are mixed together to define an ultra-homogenous yarn comprising base material and dissolvable material, which is provided in at least the warp direction to form a woven fabric having a 7-end, 8-end or 10-end sateen weave. A processing step provides for the removal of the dissolvable fibers to produce a yarn defining a plurality of pores that are uniformly distributed throughout the structure of the yarn. The woven fabric has a thread count between 450-1200. The woven fabric is thermally-insulative, breathable and moisture-wicking.