Systems and methods for producing BCF yarns include providing at least one color enhancement method for enhancing the color and/or hue of at least one of the N bundles of filaments. The color enhancement methods include tacking one or more of the bundles of spun filaments prior to and/or during drawing, texturizing one or more bundles of spun filaments individually from the other bundles of spun filaments, providing intermediate tacking of at least one bundle of texturized filaments and feeding the tacked and texturized filaments to a mixing cam for positioning tacked and texturized bundles relative one to the other before reaching the final tacking device, or combinations thereof.

A dyeing and welding process may be configured to convert a substrate into a welded substrate having at least some color imparted thereto via a dye and/or coloring agent by applying a process solvent having a dye and/or coloring agent therein to the substrate, wherein the process solvent interrupts one or more intermolecular force between one or more component in the substrate. The substrate may be configured as a natural fiber, such as cellulose, hemicelluloses, and silk. The process solvent may include a binder, such as dissolved biopolymer (e.g., cellulose). After application of a process solvent comprised of a dye and/or coloring agent, the substrate may be exposed to a second application of a process solvent comprised of a binder, which second application may occur before or after a process temperature/pressure zone, process solvent recovery zone, and/or drying zone.

Provided is a composite twist color fiber formed by joining polypropylene terephthalate (PPT) and cationic-dyeable polymer side by side. The polypropylene terephthalate (PPT) and the cationic-dyeable polymer differ in contraction rate, such that the composite fiber thus formed is not only helical but also extensible and contractile. Fabric made of the composite fiber is highly capable of elongating and retracting; hence, not only do finished products made of the fabric have low contraction rate, but surface of the fabric also exhibits satisfactory mixing tones.

This weaving machine (2) is for simultaneously weaving top and bottom pile fabrics (F2, F4) presenting some pile patterns (P2, P2′, P4) and including tufts, made from warp yarns (24), binding warp yarns (14, 16) and inwoven weft yarns. This machine includes a pile warp yarns feeding unit (20), a binding warp yarns feeding unit (18), a shedding unit (6) and a weft insertion unit (8) for inserting the weft yarns in the shed. The machine also includes a beating-up mechanism (32), a take up system (70), a drawing-in unit (26), and a control unit (80). A treatment unit (90) is located, along a path of the pile warp yarns (24), between the pile warp yarns feeding unit (20) and the shedding unit (6), for applying different segments of treatment on at least some of the pile warp yarns (24).

A knit fabric is created using on a flatbed knitting machine to create a whole garment having an inner surface and an outer surface. The knit fabric includes a support matrix comprised of base yarns with reflective yarns supported on the support matrix. The knit fabric comprises a jacquard knit structure formed from the base yarns and the reflective yarns, wherein elongate loops of the reflective yarns are outwardly exposed from the outer surface of the knit fabric. The inner surface of the knit fabric includes outwardly exposed floats of the reflective yarns.

A color-changing product includes a fabric. The fabric includes a first layer and a second layer. The first layer is arranged using at least one fiber. The at least one fiber includes (a) an electrically conductive core and (b) a coating disposed around and along the electrically conductive core. The second layer is printed onto the first layer. The second layer includes a foreground thermochromic pigment that is selectively activatable by providing an electrical current to the electrically conductive core of the at least one fiber to change at least one of a foreground color or a pattern of the second layer.

A color-changing product includes a fabric. At least a portion of the fabric includes or is arranged using at least one of (i) a color-changing fiber or (ii) a color-changing yarn including the color-changing fiber. The color-changing fiber includes an electrically conductive core having a first tensile strength, a reinforcement core having a second tensile strength that is greater than the first tensile strength, and a coating disposed around and along the electrically conductive core and the reinforcement core. The coating includes a polymeric material having a color-changing pigment.

Aspects herein are directed to using a space-treating process to apply functional finishes to a yarn and incorporating the treated yarn into a textile and/or a garment to impart engineered functional properties to the textile and/or garment.

A color-changing product includes a fabric and a connection bus disposed along at least a portion of the fabric. The fabric includes a plurality of color-changing fibers. Each of the plurality of color-changing fibers has an electrically conductive core and a coating disposed around and along the electrically conductive core. The coating includes a color-changing pigment. The connection bus has a multi-layer structure including a metallic foil layer and a film layer. The metallic foil layer forms a weld between at least a subset of the plurality of color-changing fibers so that current can flow through the connection bus and into the electrically conductive core of at least the subset of the plurality of color-changing fibers. The film layer at least partially isolates the weld from a surrounding environment.

A method for forming an anti-counterfeiting feature during knitting of a fabric and a fabric thereof, the fabric is knitted with at least one first yarn, a part of the fabric includes a plurality of featured yarn loops formed by a second yarn, the featured yarn loops constitute an anti-counterfeiting feature, the anti-counterfeiting feature can be directly observed from one side surface of the fabric, the second yarn is formed by twisting at least two sub-yarns with different colours, and colours of the at least two sub-yarns and the first yarn are different from each other, and a colour of the featured yarn loops displayed on the side surface is random. Accordingly, the randomness of yarn twisting makes the anti-counterfeiting feature difficult to be replicated, thereby preventing unscrupulous manufacturers from counterfeiting the fabric.