Disclosed are a composition for an organic optoelectronic device including at least one kind of a first host compound represented by the Chemical Formula 1 and at least one kind of a second host compound represented by the Chemical Formula 2, and an organic optoelectronic device and a display device including the composition.

A method for manufacturing at least one of fibers and yarn from natural fibers includes providing at least one of technical fibers, elementary fibers, meso fibrils, and micro fibrils. Greater than or equal to 80% of the at least one of the technical fibers, the elementary fibers, the meso fibrils, and the micro fibrils are short natural fibers having a length that is less than or equal to 12.7 mm. The method includes creating at least one of a dispersion, a gel, a solution, a paste, and a dough including the at least one of the technical fibers, the elementary fibers, the meso fibrils and the micro fibrils; and spinning filaments of the at least one of fibers and yarn using the at least one of the dispersion, the gel, the solution, the paste, and the dough.

A method for manufacturing at least one of fibers and yarn from natural fibers includes providing at least one of technical fibers, elementary fibers, meso fibrils, and micro fibrils. Greater than or equal to 80% of the at least one of the technical fibers, the elementary fibers, the meso fibrils, and the micro fibrils are short natural fibers having a length that is less than or equal to 12.7 mm. The method includes creating at least one of a dispersion, a gel, a solution, a paste, and a dough including the at least one of the technical fibers, the elementary fibers, the meso fibrils and the micro fibrils; and spinning filaments of the at least one of fibers and yarn using the at least one of the dispersion, the gel, the solution, the paste, and the dough.

A fabric is disclosed and includes warp yarns of only lyocell fiber, and weft yarns of multifilament polyester only, where the fabric has a warp yarn count from Ne40 to Ne120, a weft yarn count from 15 D (denier) to 100 D, a thread count (TC) between 200 and 2000, with ends per inch in warp between 100 and 250, and picks per inch in weft being between 100 to 1800. In one embodiment, the lyocell fiber is lyocell fiber resulting from being spun in an environment where the relative humidity is maintained at between 40% and 50%, or between 44% and 46%. The resulting fabric has low shrinkage, good durability, a desirable softness, a cool feel due to its moisture-wicking properties, and an excellent uniformity in color when dyed.

A spinning position on an air-jet spinning machine has a yarn-forming element extending at least partially into the turbulence chamber; and air jets directed into the turbulence chamber to impart to the fiber strand a twist in the area of an intake mouth of the yarn-forming element. A guide arrangement for guiding the fiber strand is situated in the area of the inlet port of the turbulence chamber and comprises at least two guide sections spaced a distance apart from one another, their mutual spacing decreasing in at least some sections in the direction of conveyance of the fiber strand. The guide arrangement also comprises at least one central guide element, which extends at least partially between the guide sections in a section running perpendicular to the longitudinal axis of the draw-off channel and produces a deflection of the fibers of the fiber strand perpendicular to the longitudinal axis of the draw-off channel.

A spinning position on an air-jet spinning machine has a yarn-forming element extending at least partially into the turbulence chamber; and air jets directed into the turbulence chamber to impart to the fiber strand a twist in the area of an intake mouth of the yarn-forming element. A guide arrangement for guiding the fiber strand is situated in the area of the inlet port of the turbulence chamber and comprises at least two guide sections spaced a distance apart from one another, their mutual spacing decreasing in at least some sections in the direction of conveyance of the fiber strand. The guide arrangement also comprises at least one central guide element, which extends at least partially between the guide sections in a section running perpendicular to the longitudinal axis of the draw-off channel and produces a deflection of the fibers of the fiber strand perpendicular to the longitudinal axis of the draw-off channel.

The invention relates to a method for operating a spinning machine with a multiple number of spinning stations, whereas, in the normal case, the individual spinning stations are supplied with a fiber material and produce a yarn from this, whereas, upon the occurrence of predefined events, yarn production is interrupted at any or all spinning stations, whereas the spinning stations at which yarn production has been interrupted are, when required, spun in with the assistance of a spinning-in process in order to once again start up yarn production, and whereas the respective spinning-in is carried out with the assistance of handling tools with their own spinning machines. In accordance with the invention, it is proposed that the individual spinning stations are classified on the basis of one or more production-related parameters, and that, if more spinning-in processes are to be carried out at the same time than can be carried out by the handling tools, at least the selection of the spinning station to be spun in next is carried out under consideration of the specified classification.

Provided are a calculus spinning device and method for producing wrapped-core yarns. The calculus spinning device includes a feeding unit, an auxiliary core-wrapping unit and a yarn winding unit. The feeding unit includes: a staple fiber feeding unit, configured to stretch a roving into a staple fiber strand and feed the staple fiber strand into the auxiliary core-wrapping unit, and a core yarn feeding unit, configured to feed a core yarn into the auxiliary core-wrapping unit. The auxiliary core-wrapping unit includes: an auxiliary core-wrapping assembly; a pressurizing/conveying assembly, configured to provide pressure or power to the auxiliary core-wrapping assembly; a yarn guiding assembly, disposed between the auxiliary core-wrapping assembly and the yarn winding unit; and a wrapping area for wrapping and converging.

Provided are a calculus spinning device and method for producing wrapped-core yarns. The calculus spinning device includes a feeding unit, an auxiliary core-wrapping unit and a yarn winding unit. The feeding unit includes: a staple fiber feeding unit, configured to stretch a roving into a staple fiber strand and feed the staple fiber strand into the auxiliary core-wrapping unit, and a core yarn feeding unit, configured to feed a core yarn into the auxiliary core-wrapping unit. The auxiliary core-wrapping unit includes: an auxiliary core-wrapping assembly; a pressurizing/conveying assembly, configured to provide pressure or power to the auxiliary core-wrapping assembly; a yarn guiding assembly, disposed between the auxiliary core-wrapping assembly and the yarn winding unit; and a wrapping area for wrapping and converging.

A method for manufacturing at least one of fibers and yarn from natural fibers includes providing at least one of technical fibers, elementary fibers, meso fibrils, and micro fibrils. Greater than or equal to 80% of the at least one of the technical fibers, the elementary fibers, the meso fibrils, and the micro fibrils are short natural fibers having a length that is less than or equal to 12.7 mm. The method includes creating at least one of a dispersion, a gel, a solution, a paste, and a dough including the at least one of the technical fibers, the elementary fibers, the meso fibrils and the micro fibrils; and spinning filaments of the at least one of fibers and yarn using the at least one of the dispersion, the gel, the solution, the paste, and the dough.