A yarn producing apparatus for producing carbon nanotube (CNT) yarn by aggregating CNT fibers. A front roller continuously draws the CNT fibers from at least one CNT forming substrate, a yarn producing unit aggregates the CNT fibers drawn by the front roller, and a status monitors a state of the CNT fibers drawn from the CNT forming substrate, or the CNT yarn.

A yarn producing apparatus produces carbon nanotube (CNT) yarn by aggregating CNT fibers, A substrate support supports a CNT forming substrate, a winding unit continuously draws the CNT fibers, a yarn producing unit aggregates the CNT fibers, a status monitor monitors a state of the CNT yarn, and a supply state changing mechanism changes a supply state of the CNT fibers, based on a result of monitoring by the status monitor.

A yarn producing apparatus produces carbon nanotube (CNT) yarn by aggregating CNT fibers, A substrate support supports a CNT forming substrate, a winding unit continuously draws the CNT fibers, a yarn producing unit aggregates the CNT fibers, a status monitor monitors a state of the CNT yarn, and a supply state changing mechanism changes a supply state of the CNT fibers, based on a result of monitoring by the status monitor.

A compound paper yarn manufacturing device includes a Japanese paper roll, a slitter configured to slit a Japanese paper sheet fed out from the Japanese paper roll to form a plurality of Japanese paper tapes, a distributor configured to distribute the plurality of Japanese paper tapes into each single Japanese paper tape, a plurality of pairs of slip rollers formed by providing a plurality of pieces of a pair of slip rollers that feed out each distributed single Japanese paper tape while slipping, and a covering machine including a plurality of single covering units configured to perform, with a first yarn added, false-twisting on the single Japanese paper tape fed out from the pair of slip rollers, and to cover with a second yarn.

A compound paper yarn manufacturing device includes a Japanese paper roll, a slitter configured to slit a Japanese paper sheet fed out from the Japanese paper roll to form a plurality of Japanese paper tapes, a distributor configured to distribute the plurality of Japanese paper tapes into each single Japanese paper tape, a plurality of pairs of slip rollers formed by providing a plurality of pieces of a pair of slip rollers that feed out each distributed single Japanese paper tape while slipping, and a covering machine including a plurality of single covering units configured to perform, with a first yarn added, false-twisting on the single Japanese paper tape fed out from the pair of slip rollers, and to cover with a second yarn.

Disclosed is a continuous carbon fiber/thermoplastic resin fiber composite yarn and a method for manufacturing the same, wherein the carbon fiber composite yarn provides excellent mechanical properties, is light in weight, moldable, and has excellent impregnating ability. In particular, the composite yarn is provided with these superior properties by including a continuous carbon fiber having excellent mechanical properties, a thermoplastic resin fiber, and the like, and by using a false twist processing machine or a solution bath, and the like in order to manufacture the composite yarn.

A yarn producing apparatus includes front rollers movable while carbon nanotube (CNT) fibers are running and aggregates the CNT fibers. Each of the front rollers includes a groove provided on an outer circumference thereof to aggregate the CNT fibers.

The invention discloses a method for preparing a polyester elastic conjugated yarn, comprising: forming a polyester yarn by using a polyester fiber as a raw material through a false twisting process; forming a thermoplastic polyester elastomer yarn by using a thermoplastic polyester elastomer (TPEE) as a raw material through an unwinding process; and combining the polyester yarn and the thermoplastic polyester elastomer yarn in a fiber blending process to obtain the polyester elastic conjugated yarn. The invention further discloses a polyester elastic conjugated yarn, and a yarn and a fabric comprising the polyester elastic conjugated yarn.

The invention discloses a method for preparing a polyester elastic conjugated yarn, comprising: forming a polyester yarn by using a polyester fiber as a raw material through a false twisting process; forming a thermoplastic polyester elastomer yarn by using a thermoplastic polyester elastomer (TPEE) as a raw material through an unwinding process; and combining the polyester yarn and the thermoplastic polyester elastomer yarn in a fiber blending process to obtain the polyester elastic conjugated yarn. The invention further discloses a polyester elastic conjugated yarn, and a yarn and a fabric comprising the polyester elastic conjugated yarn.