The device (1) comprises a first roller (3) rotatable about a first rotation axis (3A) and a second roller (5) rotatable about a second rotation axis (5A), parallel to the first rotation axis (3A). The two are in mutual contact and define between them a yarn passage (7) and at least of them is motorized. The device further comprises 5 guide members (9) defining a feed path of at least a yarn (F; F1, F2, F3, F4), associated with the yarn passage (7) between the first roller (3) and the second roller (5). The guide members (9; 13) are movable with respect to the rollers (3, 5) in a direction substantially parallel to the first rotation axis (3A) and to the second rotation axis (5A), so as to take the yarn path temporarily outside the mutual contact 10 area between the rollers.

The device (1) comprises a first roller (3) rotatable about a first rotation axis (3A) and a second roller (5) rotatable about a second rotation axis (5A), parallel to the first rotation axis (3A). The two are in mutual contact and define between them a yarn passage (7) and at least of them is motorized. The device further comprises 5 guide members (9) defining a feed path of at least a yarn (F; F1, F2, F3, F4), associated with the yarn passage (7) between the first roller (3) and the second roller (5). The guide members (9; 13) are movable with respect to the rollers (3, 5) in a direction substantially parallel to the first rotation axis (3A) and to the second rotation axis (5A), so as to take the yarn path temporarily outside the mutual contact 10 area between the rollers.

A fiber bundle joining apparatus includes: a support table configured to hold a terminal end portion side of a first fiber bundle; a roller mechanism having a roller around which a leading end portion side of a second fiber bundle is capable of being wound; a movement mechanism configured to perform a first movement for moving the roller mechanism to the vicinity of the terminal end portion side of the first fiber bundle, and a second movement for further moving the roller mechanism on the terminal end portion side of the first fiber bundle to create a state where the leading end portion side of the second fiber bundle is stacked on the terminal end portion side of the first fiber bundle; and a thermocompression bonding mechanism configured to pressure-bond the first fiber bundle and the second fiber bundle.

A fiber bundle joining apparatus includes: a support table configured to hold a terminal end portion side of a first fiber bundle; a roller mechanism having a roller around which a leading end portion side of a second fiber bundle is capable of being wound; a movement mechanism configured to perform a first movement for moving the roller mechanism to the vicinity of the terminal end portion side of the first fiber bundle, and a second movement for further moving the roller mechanism on the terminal end portion side of the first fiber bundle to create a state where the leading end portion side of the second fiber bundle is stacked on the terminal end portion side of the first fiber bundle; and a thermocompression bonding mechanism configured to pressure-bond the first fiber bundle and the second fiber bundle.

A production process of mixed yarns and mixed yarns obtained from circular and or sustainable and or biodegradable textiles within any textile industry and or adapted in the machines within spinning mills. This makes possible a very large combination of different types of textile yarn mixtures and a wide range of weights of mixed sustainable and or biodegradable yarns, to meet and create new demands for sustainable and circular textile products. The process described for injection of compressed air is the combination and mixing of sustainable and circular and or biodegradable continuous filament yarns with biodegradable, and sustainable natural and/or artificial spun yarns, bringing technology to the products in line with the sustainability of the environment. This makes possible a definitive solution in ocean contamination by synthetic fibers and prevents much of the artificial textile fibers from fabrics and clothes, which release their cut fibers during industrial and domestic washing.

A polyamide multifilament has a single-filament fineness of 0.8 dtex to 7 dtex, a strength of 7.5 cN/dtex to 8.5 cN/dtex, and a knot strength of 6.0 cN/dtex to 7.5 cN/dtex. The polyamide multifilament may have a tensile strength at 15% elongation of 6.1 cN/dtex to 7.5 cN/dtex. The polyamide multifilament may have a total fineness of 20 dtex to 44 dtex.

The present disclosure relates to suede-like artificial leather and a production method thereof, and more particularly, to suede-like artificial leather, which is excellent in sensibility such as smooth texture and fullness while satisfying physical properties desired as suede that is used for automotive headliners, fillers, and sun visors using a covering yarn including a core and a sea-island type microfiber surrounding the core in suede used for a vehicle interior part, and a production method thereof.

A method of manufacturing multi-ply separable textured yarn, the method comprising, passing a multi-ply separable interlaced filament yarn through a texturizing unit to form a multi-ply separable draw textured yarn, wherein the multi-ply separable interlaced filament yarn is separable in to at least two separable interlaced filament yarn, wherein the interlacing of the filaments within each separable interlaced filament yarn is retained during further processing of the yarn to fabric and in the fabric.

A method of manufacturing multi-ply separable textured yarn, the method comprising, passing a multi-ply separable interlaced filament yarn through a texturizing unit to form a multi-ply separable draw textured yarn, wherein the multi-ply separable interlaced filament yarn is separable in to at least two separable interlaced filament yarn, wherein the interlacing of the filaments within each separable interlaced filament yarn is retained during further processing of the yarn to fabric and in the fabric.

A method of producing a partially separated fiber bundle includes a partial separation processing step for alternately forming separation-processed sections, each divided into a plurality of bundles, and not-separation-processed sections along the lengthwise direction of a fiber bundle, wherein a separation means provided with a plurality of projected parts is penetrated into the fiber bundle to create separation-processed parts, the separation means is removed from the fiber bundle, and the separation means is penetrated into the fiber bundle again, characterized in that a sizing agent is applied at an arbitrary timing during the production process of the partially separated fiber bundle. A partially separated fiber bundle is obtained by the production method, a fiber-reinforced resin molding material uses the partially separated fiber bundle, and a production method makes the fiber-reinforced resin molding material.