The present invention relates to twisted yarn obtained by twisting a plurality of carbon fiber resins which are slit from a carbon fiber resin tape in which adhesive, alumina sol, and potassium persulfate permeate between a plurality of the carbon fibers spread flatly. An open yarn is obtained by S-twisting and Z-twisting covering yarn around the periphery of the twisted yarn. A carbon fiber covered twisted yarn is obtained by winding the twisted yarn around the periphery of a core material

The present invention relates to twisted yarn obtained by twisting a plurality of carbon fiber resins which are slit from a carbon fiber resin tape in which adhesive, alumina sol, and potassium persulfate permeate between a plurality of the carbon fibers spread flatly. An open yarn is obtained by S-twisting and Z-twisting covering yarn around the periphery of the twisted yarn. A carbon fiber covered twisted yarn is obtained by winding the twisted yarn around the periphery of a core material

An apparatus for manufacturing open carbon fiber superfine yarn comprises a yarn feeding part for feeding a carbon fiber bundle; a tank for storing water for opening carbon fiber to immerse the carbon fiber bundle in the water for opening carbon fiber; a first drying part for drying the open carbon fiber bundle formed by the immersion in the water for opening carbon fiber; an application part for applying a catalyst to the dried open carbon fiber bundle; a second drying part for drying the catalyst-applied open carbon fiber bundle to obtain open carbon fiber resin tape; a slitting part for slitting the open carbon fiber resin tape longitudinally; and a twisting part for twisting a plurality of the open carbon fiber resin tapes slit by the slitting part to form open carbon fiber superfine yarn.

An apparatus for manufacturing open carbon fiber superfine yarn comprises a yarn feeding part for feeding a carbon fiber bundle; a tank for storing water for opening carbon fiber to immerse the carbon fiber bundle in the water for opening carbon fiber; a first drying part for drying the open carbon fiber bundle formed by the immersion in the water for opening carbon fiber; an application part for applying a catalyst to the dried open carbon fiber bundle; a second drying part for drying the catalyst-applied open carbon fiber bundle to obtain open carbon fiber resin tape; a slitting part for slitting the open carbon fiber resin tape longitudinally; and a twisting part for twisting a plurality of the open carbon fiber resin tapes slit by the slitting part to form open carbon fiber superfine yarn.

An apparatus for manufacturing open carbon fiber superfine yarn comprises a yarn feeding part for feeding a carbon fiber bundle; a tank for storing water for opening carbon fiber to immerse the carbon fiber bundle in the water for opening carbon fiber; a first drying part for drying the open carbon fiber bundle formed by the immersion in the water for opening carbon fiber; an application part for applying a catalyst to the dried open carbon fiber bundle; a second drying part for drying the catalyst-applied open carbon fiber bundle to obtain open carbon fiber resin tape; a slitting part for slitting the open carbon fiber resin tape longitudinally; and a twisting part for twisting a plurality of the open carbon fiber resin tapes slit by the slitting part to form open carbon fiber superfine yarn.

An apparatus for manufacturing open carbon fiber superfine yarn comprises a yarn feeding part for feeding a carbon fiber bundle; a tank for storing water for opening carbon fiber to immerse the carbon fiber bundle in the water for opening carbon fiber; a first drying part for drying the open carbon fiber bundle formed by the immersion in the water for opening carbon fiber; an application part for applying a catalyst to the dried open carbon fiber bundle; a second drying part for drying the catalyst-applied open carbon fiber bundle to obtain open carbon fiber resin tape; a slitting part for slitting the open carbon fiber resin tape longitudinally; and a twisting part for twisting a plurality of the open carbon fiber resin tapes slit by the slitting part to form open carbon fiber superfine yarn.

Disclosed is a method of producing a variable-color textile, the method comprising: providing a plurality of filaments into a commercial textile-production machine, the plurality filaments having at least a first color and a second color; and twisting at least one of the plurality of filaments to display a first color on a first side of a fabric surface and a second color on an opposite side of the fabric surface.

Provided is a method of manufacturing a dental cord. The method including: producing a spinning solution by dissolving a fiber-moldable hydrophobic polymer material in a solvent; spinning the spinning solution to obtain a polymer nanofiber web composed of nanofibers and including three-dimensional micropores; laminating the polymer nanofiber web to obtain a polymer membrane; slitting the polymer membrane to obtain a nanofiber tape yarn; hydrophilic-treating the nanofiber tape yarn to obtain a hydrophilic-treated nanofiber tape yarn; plying and twisting the hydrophilic-treated nanofiber tape yarn with a covered yarn to obtain a nanofiber multiple yarn; and impregnating the nanofiber multiple yarn with a hemostatic agent.

A device configured to manufacture a layered weighted yarn includes a formation channel configured to receive a first material and a second material; and a sewing machine including at least one needle, the sewing machine configured to sew a seam on the first material. The formation channel being further configured to receive the first material and form the first material into an outer tube; receive the second material and insert the second material into the outer tube; locate the first material in a position to be sewn by the sewing machine to form the seam on the outer tube; and discharge the outer tube including the first material and the second material inserted into the outer tube as a layered weighted yarn.

The present invention relates to twisted yarn obtained by twisting a plurality of carbon fiber resins which are slit from a carbon fiber resin tape in which adhesive, alumina sol, and potassium persulfate permeate between a plurality of the carbon fibers spread flatly. An open yarn is obtained by S-twisting and Z-twisting covering yarn around the periphery of the twisted yarn. A carbon fiber covered twisted yarn is obtained by winding the twisted yarn around the periphery of a core material.