JP2007046172A - Core yarn, method for producing the same and its manufacturing equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a core yarn that is obtained by winding a thin metal wire with a spinnable fiber bundle, is easily produced and uniform, has high qualities and is strong. <P>SOLUTION: A stainless wire 4 to be the core of a core yarn 10 is spun while applying a tension having about 40% to about 70% strength at break by regulating numbers of revolutions of a front roller 9 and a spindle 15 so that a fiber roving 6 is surely wound on the stainless wire 4 stretched in a straight line and uniformly spun. The fiber roving 6 is required to have proper twist. Further, irregular winding of spinnable fiber on the metal wire occurs when the number of twists of the fiber roving exceeds a number of twists calculated by a twist multiplier of an ordinary warp or slightly twisted warp +20% the number of twists and sheath removal in which the fiber roving 6 is slipped and partially separated from the stainless wire 4 occurs when the number of twists of the fiber roving becomes less than the number of twists -20% the number of twists. In the case of the fiber roving 6, the number of twists calculated by the twist multiplier of the ordinary warp or the slightly twisted warp is 24 times, the number of revolutions of the spindle 15 is regulated so that the number of twists of the fiber roving 6 is adjusted to be 24 times. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a core yarn including a metal wire, a manufacturing method thereof, and a manufacturing apparatus thereof, which are most suitable for weaving conductive fabrics that can be used as electromagnetic wave shielding materials and fabrics such as shape memory clothes and hats.

  In recent years, by weaving metal fibers or metal wires into textile products, it can be made into textile products with high strength, clothing with shape memory properties, or textile products with electromagnetic wave shielding properties utilizing metal conductivity. Is progressing. For example, in the invention described in Patent Document 1, a high-strength metal fiber is used as a safety glove that is difficult to cut even if a hand is out of order and does not impair workability in a fine cutting operation of a small part such as a knife or a cutter. Alternatively, we have proposed safety gloves equipped with high-strength metal ribbons.

  Further, in the device described in Patent Document 2, in order to be able to shield electromagnetic waves in a wider range, an aluminum fiber obtained by finely cutting an aluminum foil into a staple fiber shape and a normal spinnable fiber It proposes a curtain for electromagnetic shielding formed by a woven fabric using a blended yarn.

Further, in the invention described in Patent Document 3, in order to sew electromagnetic shielding work clothes and the like for the purpose of more reliably protecting the human body from electromagnetic waves, the conductive metal wire and the twisted yarn or filament yarn are pulled in parallel. A core yarn is formed to be uniform, and a twisted yarn or a filament yarn is Z-twisted around the core yarn, and an S-twist is performed to prevent the conductive metal wire from being exposed, thereby forming an electromagnetic wave shielding woven composite yarn.
JP 2002-220716 A No. 3-36538 JP 2004-11033 A

  These safety gloves, electromagnetic wave shielding curtains, electromagnetic wave shielding work clothes and the like described in Patent Documents 1 to 3 are mixed yarns (core yarns) obtained by twisting metal fibers or thin metal wires and ordinary twisted yarns or filament yarns. ) Can be sewn more easily and at a lower cost than those described in Patent Documents 1 to 3.

  However, producing a strong mixed yarn (core yarn) by twisting metal fibers or thin metal wires and ordinary twisted yarns, etc., is possible because the metal fibers or thin metal wires are hard and both can be uniformly twisted together. In fact, it was very difficult.

  Accordingly, the present invention provides a core yarn obtained by winding a bundle of spinnable fibers around a thin metal wire, a uniform, high-quality and durable core yarn that can be easily manufactured, a manufacturing method thereof, and a manufacturing apparatus thereof Is an issue.

  The core yarn according to the invention of claim 1 is a core yarn obtained by spinning a bundle of spinable fibers around a thin metal wire, and the thin metal wire has a cutting strength of about 40% to about 70%. The above-mentioned spinnable fiber bundle is spun while applying a twist within a range of ± 20% of the number of twists calculated by the twist coefficient of ordinary warp (warm) or sweet twist warp Is.

  Here, as the “metal wire”, various metal wires such as a steel wire, a stainless steel wire, a copper wire, and an aluminum wire can be used. The “spinnable fiber” includes cotton, silk, hemp, wool, nylon, vinylon, polyester fiber, acrylic fiber, vinylidene chloride fiber, acetate, rayon and other organic fibers, glass fiber and other inorganic fibers or these. Fibers can be mixed.

  The manufacturing method of the core yarn according to the invention of claim 2 is a manufacturing method of a core yarn in which a bundle of spinnable fibers is wound around one thin metal wire and spun, and the thin metal wire has a cutting strength of about 40%. Spinning while applying a tension within a range of ± 20% of the number of twists calculated by the twist coefficient of ordinary warp or sweet twist warp to the bundle of spinnable fibers while applying a tension of about 70%. .

  A core yarn manufacturing apparatus according to a third aspect of the invention includes a rotatable bobbin wound with a thin metal wire, a winding wound with a bundle of spinnable fibers, and three or more and five or less winding rollers. A draft device, a spindle that rotates to wind up the core yarn formed by winding the thin metal wire and the bundle of spinnable fibers, and a removal that has a taper on the outer periphery that is fitted into a portion of the spindle that winds up the core yarn A core yarn manufacturing apparatus comprising: a flexible winding jig; and a traveler that is rotatable around the spindle and is movable up and down within a range in which the core yarn is wound by the winding jig, The feed speed determined by the rotational speed of the front roller closest to the spindle among the winding rollers of the draft device is set to the rotation speed of the spindle. By applying a tension of about 40% to about 70% of the cutting strength to the thin metal wire by making it slower than the winding speed determined by the number, and adjusting the number of revolutions of the spindle, The bundle is spun while being twisted within a range of ± 20% of the number of twists calculated by the twist coefficient of ordinary warp or sweet twist warp.

  According to a fourth aspect of the present invention, there is provided the core yarn manufacturing apparatus according to the third aspect, wherein the thin metal wire is always drawn parallel to the bobbin flange by moving the bobbin little by little while rotating. It is what

  The core yarn or core yarn manufacturing method or core yarn manufacturing apparatus according to the invention of claim 5 is the structure according to any one of claims 1 to 4, wherein the thin metal wire has a thickness of about 20 μm to about 120 μm. It is what is inside.

  The core yarn according to the invention of claim 1 is a core yarn in which a bundle of spinable fibers is wound around one thin metal wire, and a tension of about 40% to about 70% of the cutting strength is applied to the thin metal wire. Twist within a range of ± 20% of the number of twists calculated by the twist coefficient of ordinary warp or sweet twist warp to a bundle of spinnable fibers while preferably applying tension of about 50% to about 60% of the cutting strength, More preferably, the yarn is spun while being twisted within a range of ± 10% of the calculated number of twists.

  Here, as described above, as the “metal wire”, various metal wires such as a steel wire, a stainless steel wire, a copper wire, and an aluminum wire can be used. The “spinnable fiber” includes cotton, silk, hemp, wool, nylon, vinylon, polyester fiber, acrylic fiber, vinylidene chloride fiber, acetate, rayon and other organic fibers, glass fiber and other inorganic fibers or these. Fibers can be mixed.

  As a result of earnest experiment research on how to produce a core yarn obtained by winding a bundle of spinnable fibers around a thin metal wire as a uniform and high quality product, the present inventor has found that the core yarn is the core of the core yarn. Usually, a thin metal wire is stretched in a straight line by spinning it while applying a tension of about 40% to about 70% of its cutting strength, more preferably about 50% to about 60% of its cutting strength. It was found that the spinnable fiber bundle was reliably wound, and the spinnable fiber bundle was not wound neatly on the thin metal wire, and “spinning out of the core” did not occur.

  Furthermore, a twist in the range of ± 20% of the number of twists calculated by the twist coefficient of ordinary warp or sweet twist warp in the bundle of spinnable fibers, more preferably in the range of ± 10% of the calculated number of twists It has been found that by spinning while twisting, a bundle of spinnable fibers is surely wound around a thin metal wire and spun. And, if the twist number calculated by the twist coefficient of ordinary warp or sweet twist warp exceeds + 20%, a bundle of spinnable fibers will not be neatly wound around a thin metal wire, and a normal warp or It has been found that when the number of twists calculated by the twist coefficient of the sweet-twisted warp is less than −20%, a “sheath removal” occurs in which the bundle of spinnable fibers slips and partially leaves the thin metal wire.

  The present inventor has completed the present invention based on these findings, and under the conditions described above, no matter what spinn fiber is wound around any thin metal wire, the present invention is uniform. And it becomes a high quality core yarn.

  In this way, a core yarn obtained by winding a bundle of spinable fibers around a thin metal wire, which is a uniform, high-quality and durable core yarn that can be easily manufactured.

  The core yarn manufacturing method according to the invention of claim 2 is a core yarn manufacturing method in which a bundle of spinnable fibers is wound around one thin metal wire and spun, and the thin metal wire has a cutting strength of about 40% to While applying a tension of about 70%, more preferably a tension of about 50% to about 60% of the cutting strength, a twist of ± 20 calculated by the twist coefficient of ordinary warp or sweet twist warp on a bundle of spinnable fibers %, More preferably, spinning while applying a twist within a range of ± 10% of the calculated number of twists.

  Here, as the “metal wire”, various metal wires such as a steel wire, a stainless steel wire, a copper wire, and an aluminum wire can be used. The “spinnable fiber” includes cotton, silk, hemp, wool, nylon, vinylon, polyester fiber, acrylic fiber, vinylidene chloride fiber, acetate, rayon and other organic fibers, glass fiber and other inorganic fibers or these. Fibers can be mixed.

  As a result of earnest experiment research on how to produce a core yarn obtained by winding a bundle of spinnable fibers around a thin metal wire as a uniform and high quality product, the present inventor has found that the core yarn is the core of the core yarn. Usually, a thin metal wire is stretched in a straight line by spinning it while applying a tension of about 40% to about 70% of its cutting strength, more preferably about 50% to about 60% of its cutting strength. It was found that the spinnable fiber bundle was reliably wound, and the spinnable fiber bundle was not wound neatly on the thin metal wire, and “spinning out of the core” did not occur.

  Furthermore, a twist in the range of ± 20% of the number of twists calculated by the twist coefficient of ordinary warp or sweet twist warp in the bundle of spinnable fibers, more preferably in the range of ± 10% of the calculated number of twists It has been found that by spinning while twisting, a bundle of spinnable fibers is surely wound around a thin metal wire and spun. And, if the twist number calculated by the twist coefficient of ordinary warp or sweet twist warp exceeds + 20%, a bundle of spinnable fibers will not be neatly wound around a thin metal wire, and a normal warp or It has been found that when the number of twists calculated by the twist coefficient of the sweet-twisted warp is less than −20%, a “sheath removal” occurs in which the bundle of spinnable fibers slips and partially leaves the thin metal wire.

  The present inventor has completed the present invention based on these findings, and under the conditions described above, no matter what spinn fiber is wound around any thin metal wire, the present invention is uniform. And a high quality core yarn can be manufactured.

  In this way, a core yarn manufacturing method in which a bundle of spinable fibers is wound around a thin metal wire, which is a uniform, high quality and durable core yarn manufacturing method that can be easily manufactured.

  A core yarn manufacturing apparatus according to a third aspect of the invention includes a rotatable bobbin wound with a thin metal wire, a winding wound with a bundle of spinnable fibers, and three or more and five or less winding rollers. Removable winder having a taper on the outer periphery that is fitted into a portion of the spindle device that winds the core yarn, and a spindle that rotates to wind the core yarn formed by winding a draft device, a thin metal wire and a bundle of spinnable fibers A core yarn manufacturing apparatus comprising a jig and a traveler that is rotatable about a spindle and is movable up and down within a range in which the core yarn is wound by a winding jig. The feed speed determined by the rotation speed of the front roller near the spindle is slower than the winding speed determined by the rotation speed of the spindle. By applying a tension of about 40% to about 70% of the cutting strength to a thin metal wire, and adjusting the number of rotations of the spindle, a twist of a normal warp or a sweet twist warp is applied to a bundle of spinnable fibers. Spin while applying a twist within a range of ± 20% of the calculated number of twists.

  Here, as the “metal wire”, various metal wires such as a steel wire, a stainless steel wire, a copper wire, and an aluminum wire can be used. The “spinnable fiber” includes cotton, silk, hemp, wool, nylon, vinylon, polyester fiber, acrylic fiber, vinylidene chloride fiber, acetate, rayon and other organic fibers, glass fiber and other inorganic fibers or these. Fibers can be mixed.

  As a result of earnest experiment research on how to produce a core yarn obtained by winding a bundle of spinnable fibers around a thin metal wire as a uniform and high quality product, the present inventor has found that the core yarn is the core of the core yarn. Usually, a thin metal wire is stretched in a straight line by spinning it while applying a tension of about 40% to about 70% of its cutting strength, more preferably about 50% to about 60% of its cutting strength. It was found that the spinnable fiber bundle was reliably wound, and the spinnable fiber bundle was not wound neatly on the thin metal wire, and “spinning out of the core” did not occur.

  Then, as a method of applying a tension of about 40% to about 70% of the cutting strength, more preferably about 50% to about 60% of the cutting strength, to the thin metal wire that becomes the core of the core yarn, the rotational speed of the front roller If the feed speed determined by the speed is slower than the winding speed determined by the spindle speed, the thin metal wire wound around the front roller is pulled by the spindle rotating, so the front roller speed and spindle By appropriately adjusting the number of rotations, a tension of about 40% to about 70% of the cutting strength, more preferably about 50% to about 60% of the cutting strength can be applied to the thin metal wire.

  Furthermore, a twist in the range of ± 20% of the number of twists calculated by the twist coefficient of ordinary warp or sweet twist warp in the bundle of spinnable fibers, more preferably in the range of ± 10% of the calculated number of twists It has been found that by spinning while twisting, a bundle of spinnable fibers is surely wound around a thin metal wire and spun. And, if the twist number calculated by the twist coefficient of ordinary warp or sweet twist warp exceeds + 20%, a bundle of spinnable fibers will not be neatly wound around a thin metal wire, and a normal warp or It has been found that when the number of twists calculated by the twist coefficient of the sweet-twisted warp is less than −20%, a “sheath removal” occurs in which the bundle of spinnable fibers slips and partially leaves the thin metal wire.

  And, it is the traveler's rotation based on the rotation of the spindle that twists the bundle of spinable fibers. Therefore, if the number of rotations of the spindle is adjusted appropriately, the bundle of spinnable fibers can be twisted with ordinary warp or sweet twist. It is possible to perform spinning while applying a twist within a range of ± 20% of the number of twists calculated by the twist coefficient of the warp, more preferably a twist within a range of ± 10% of the calculated number of twists.

  In this way, a core yarn manufacturing apparatus in which a bundle of spinable fibers is wound around a thin metal wire, which is a uniform, high-quality and durable core yarn manufacturing apparatus that can be easily manufactured.

  In the core yarn manufacturing apparatus according to the fourth aspect of the invention, the thin metal wire is always drawn parallel to the flange of the bobbin by moving the bobbin little by little while rotating.

  Since the bobbin around which the thin metal wire is wound has a width, if the bobbin is rotated at a certain position, the thin metal wire may be pulled out obliquely, which causes the thin metal wire to be twisted. A thin metal wire that is twisted in this manner may cause a bundle of spinnable fibers to come into close contact with each other, preventing a uniform core yarn from being produced.

  Therefore, by moving the bobbin little by little to the left and right so that the position where it is wound around the three winding rollers and the position where the thin metal wire is drawn out are always in front of each other, the thin metal wire is always attached to the bobbin. Since it is drawn parallel to the flange, that is, straight, it is prevented that the thin metal wire is twisted, and a uniform core yarn can be manufactured.

  In this way, a core yarn manufacturing apparatus in which a bundle of spinnable fibers is wound around a thin metal wire, which can be manufactured extremely efficiently and easily, ensuring a uniform, high quality and durable core yarn. It becomes the manufacturing apparatus of the core yarn which can be manufactured.

  In the core yarn or core yarn manufacturing method or core yarn manufacturing apparatus according to the invention of claim 5, the thickness of the thin metal wire is in the range of about 20 μm (0.02 mm) to about 120 μm (0.12 mm), more preferably about It is in the range of 30 μm (0.03 mm) to about 80 μm (0.08 mm). If the thickness of the thin metal wire is less than about 20 μm, it is too thin and the strength is insufficient and spinning cannot be performed. On the other hand, if the thickness of the thin metal wire exceeds about 120 μm, it is too thick and spinning is possible. Can not.

  Furthermore, in order to obtain a higher quality core yarn, it is more preferable that the thickness of the thin metal wire is in the range of about 30 μm to about 80 μm.

  In this way, a core yarn or core yarn manufacturing method or core yarn manufacturing apparatus in which a bundle of spinnable fibers is wound around a thin metal wire, which can be manufactured very efficiently and easily, is surely uniform. A core yarn or a core yarn manufacturing method or a core yarn manufacturing apparatus capable of manufacturing a high-quality and durable core yarn is provided.

  Hereinafter, an embodiment of the present invention will be described with reference to FIG. FIG. 1 is an explanatory view schematically showing a core yarn, a manufacturing method thereof, and a manufacturing apparatus thereof according to an embodiment of the present invention.

  As shown in FIG. 1, the core yarn 10 according to the present embodiment has a stainless wire 4 having a thickness of about 40 μm (0.04 mm) or about 30 μm (0.03 mm) as a thin metal wire as a core. A stainless steel wire 4 is made by twisting a cotton (cotton) roving yarn (sliver for making a cotton 40 single yarn) 6 as a bundle of spinnable fibers.

  The thickness of the stainless steel wire 4 as a thin metal wire is in the range of about 20 μm (0.02 mm) to about 120 μm (0.12 mm), more preferably about 30 μm (0.03 mm) to about 80 μm (0.08 mm). Within range. If the thickness of the stainless steel wire 4 as a thin metal wire is less than about 20 μm, the stainless steel wire 4 as a thin metal wire has a thickness of about 120 μm. If it exceeds, it will be too thick to be spun. Furthermore, in order to make the core yarn 10 of higher quality, it is more preferable that the thickness of the stainless steel wire 4 as a thin metal wire is in the range of about 30 μm to about 80 μm.

  As shown in FIG. 1, the core yarn manufacturing apparatus 1 according to the present embodiment includes a rotatable bobbin 3 around which a stainless wire 4 as a thin metal wire is wound, and a cotton as a bundle of spinnable fibers. To wind a core yarn 10 formed by winding a stainless steel wire 4 and a cotton coarse yarn 6, a draft device having three winding rollers 7, 8, and 9, and a rotatable reel winding 5 around which the coarse yarn 6 is wound. A spindle 15 that rotates in a rotating manner, a tube thread 14 that is fitted into a portion where the core yarn 10 of the spindle 15 is wound, as a detachable winding jig having a taper on the outer periphery, and a tube that is rotatable around the spindle 15 and is a tube And a traveler 12 that can move up and down within a range in which the core yarn 10 is wound by the yarn 14.

  The traveler 12 is a C-shaped fitting that is attached to a ring 11 that is rotatable about a spindle 15 and that is movable up and down within a range in which the core yarn 10 is wound up by the pipe yarn 14. 10 is passed and wound around the tube thread 14 as a winding jig fitted into the spindle 15.

  Furthermore, the bobbin 3 that is rotatably supported by the rotating shaft 2 and wound with the stainless wire 4 is moved little by little to the left and right as the rotating shaft 2 is indicated by an arrow in the figure, so that the stainless wire 4 is always attached to the bobbin 3. It is drawn out parallel to the flange 3a. Thereby, the stainless steel wire 4 is always drawn out straight, and it is devised so that the stainless steel wire 4 is not twisted. When the stainless steel wire 4 is pulled out from the bobbin 3 at an angle, the stainless steel wire 4 is twisted, and in the drafting device having the three winding rollers 7, 8, 9 described below, the cotton roving 6 is completely uniform. There is a possibility that it cannot be wound.

  In the present embodiment, the example in which the rotating shaft 2 is moved little by little to the left and right as shown by the arrows in the figure has been described. However, the configuration in which the rotating shaft 2 does not move to the left and right, that is, the bobbin 3 is A configuration that does not move to the left or right may be used. In particular, when the distance from the bobbin 3 to the front roller 9 is long, even if the stainless wire 4 is wound from the left end to the right end of the bobbin 3, it is always drawn straight almost straight. There is no fear that the cotton roving 6 will not be uniformly wound.

  The drawn stainless steel wire 4 is directly hooked on the front roller 9, and the cotton roving 6 that is drawn out in turn from the rotatable winding 5 between the back roller 7, the middle roller 8, and the front roller 9. It is wound around the front roller 9 and is passed through a traveler 12 of a ring 11 that can move up and down within the range of the pipe thread 14 as a winding jig as shown by an arrow by an elevating mechanism (not shown). It is fixed to the tube thread 14.

  With this configuration, when the spindle 15 is rotationally driven in the direction of the arrow, the pipe yarn 14 as a winding jig fitted into the spindle 15 also rotates integrally, and as described above, the range of the pipe yarn 14 is moved up and down. The ring 11 that is movable and supported rotatably about the spindle 15 rotates as the core yarn 10 is wound around the tube yarn 14. The ring 11 is adjusted so that the core yarn 10 is uniformly wound from above to below the pipe yarn 14 by moving up and down within the range of the pipe yarn 14.

Here, since the three winding rollers 7, 8, 9 are each driven to rotate by themselves, and the spindle 15 is also driven to rotate by itself, the feed speed determined by the rotation speed of the front roller 9 is set to the rotation of the spindle 15. Tension can be applied to the stainless steel wire 4 constituting the core yarn 10 by making it slower than the winding speed determined by the number. The tension applied to the stainless steel wire 4 for spinning the uniform and high quality core yarn 10 is as shown in Table 1 depending on the thickness of the stainless steel wire 4.

  As shown in Table 1, the cutting strength of the stainless steel wire 4 having a thickness of 0.04 mmφ (40 μmφ) is 0.9 N, and the applied tension is 0.5 N, which is about 55.6% of the cutting strength. It is. Moreover, the cutting strength of the stainless steel wire 4 having a thickness of 0.03 mmφ (30 μmφ) is 0.5 N, and the applied tension is 0.3 N, which is about 60% of the cutting strength.

  As described above, the present inventors have investigated how to manufacture the core yarn 10 with a uniform and high quality, and as a result, the stainless steel wire 4 serving as the core of the core yarn 10 has a cutting strength of about 40% to By spinning while applying a tension of about 70%, more preferably a tension of about 50% to about 60% of the cutting strength, the stainless steel wire 4 is stretched in a straight line, so that the cotton roving 6 is surely wound and evenly distributed. I found that it was spun.

  Furthermore, the present inventor has found that the cotton roving 6 is surely wound around the stainless wire 4 and is spun by applying an appropriate twist to the cotton roving 6. Specifically, if the twist number calculated by the twist factor of ordinary warp (warm) or sweet twist warp exceeds + 20%, the “coarse off” in which the cotton coarse yarn 6 does not wind around the stainless wire 4 neatly occurs. Occurrence of “sheath loss” occurs when the cotton coarse yarn 6 slips and partially leaves the stainless steel wire 4 when it falls below −20% of the number of twists calculated by the twist coefficient of ordinary warp or sweet twist warp. I found.

  In the case of the cotton roving 6, the number of twists calculated by the twist coefficient of the ordinary warp or the sweet twist warp is 24, so that in the present embodiment, the number of twists of the cotton roving 6 is 24. In addition, the number of rotations of the spindle 15 was adjusted. However, even if the number of twists is not necessarily 24, the twist within the range of ± 20%, that is, the twist within the range of 19 to 28, more preferably the twist within the range of ± 10%, that is, 22 By spinning while twisting within the range of 26 to 26, the cotton coarse yarn 6 is surely wound around the stainless wire 4 and spun.

  In this way, the core yarn 10 is manufactured while the three winding rollers 7, 8, 9 and the spindle 14 are rotationally driven by appropriately adjusting the rotational speeds of the front roller 9 and the spindle 15. When a predetermined amount of the core yarn 10 has been wound up, the core yarn manufacturing apparatus 1 is once stopped, the tip of the core yarn 10 is cut, the pipe yarn 14 is removed from the spindle 15, and the new pipe yarn 14 is fitted into the spindle 15. Then, the tip of the core yarn 10 is fixed to the new pipe yarn 14 and the operation of the core yarn manufacturing apparatus 1 is resumed.

  As shown in FIG. 1, a large number of such core yarn manufacturing apparatuses 1, 1 </ b> A,... The core yarn 10 thus manufactured includes various uses such as a sewing thread for a shape memory garment such as a shape memory shirt, a sewing thread for an electromagnetic shielding garment, and a high-strength textile product. .

  Thus, the core yarn 10 according to the present embodiment is a core yarn obtained by winding the cotton roving 6 as a bundle of spinnable fibers around the stainless wire 4 as a thin metal wire, and can be easily manufactured. The core yarn 10 according to the present embodiment is manufactured by winding a cotton coarse yarn 6 as a bundle of spinnable fibers around a stainless wire 4 as a thin metal wire. This is a method for producing a core yarn, which is a uniform, high-quality and durable core yarn that can be easily produced.

  The core yarn manufacturing apparatus 1 according to the present embodiment is a core yarn 10 manufacturing apparatus in which a cotton roving 6 as a bundle of spinnable fibers is wound around a stainless wire 4 as a thin metal wire. The core yarn manufacturing apparatus can be manufactured efficiently and easily, and can surely manufacture the core yarn 10 which is uniform, high quality and strong.

  In the present embodiment, the case where the stainless steel wire 4 having a thickness of about 40 μm (0.04 mm) or about 30 μm (0.03 mm) is used as the thin metal wire has been described. However, the thin metal wire is not limited to this. Stainless steel wire having a thickness of about 20 μm (0.02 mm) to about 120 μm (0.12 mm), more preferably stainless steel having a thickness of about 30 μm (0.03 mm) to about 80 μm (0.08 mm). Various metal wires such as wires, steel wires, copper wires, and aluminum wires can be used.

  Further, in the present embodiment, only the case where the cotton roving 6 is used as a bundle of spinnable fibers has been described. However, the spinnable fibers are not limited to this, and other thickness cottons. Coarse yarn, silk, hemp, wool, nylon, vinylon, polyester fiber, acrylic fiber, vinylidene chloride fiber, organic fiber such as acetate and rayon, inorganic fiber such as glass fiber, or these fibers can be mixed.

  In carrying out the present invention, the configuration, material, size, shape, quantity, connection relationship, etc. of other parts of the core yarn, other steps of the core yarn manufacturing method, and other parts of the core yarn manufacturing apparatus The configuration, material, size, shape, quantity, connection relationship, and the like are not limited to the present embodiment.

FIG. 1 is an explanatory view schematically showing a core yarn, a manufacturing method thereof, and a manufacturing apparatus thereof according to an embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Core yarn manufacturing apparatus 3 Bobbin 4 Thin metal wire 5 Shino winding 6 Spinnable fiber bundle 9 Front roller 10 Core yarn 14 Winding jig (tube yarn)
15 spindle

Claims (5)

A core yarn obtained by spinning a bundle of spinable fibers around a thin metal wire,
While applying a tension of about 40% to about 70% of the cutting strength to the thin metal wire,
A core yarn obtained by spinning a bundle of spinnable fibers while applying a twist within a range of ± 20% of the number of twists calculated by a twist coefficient of ordinary warp (warm) or sweet twist warp . A method for producing a core yarn, in which a bundle of spinable fibers is wound around a thin metal wire and spun.
While applying a tension of about 40% to about 70% of the cutting strength to the thin metal wire,
A method for producing a core yarn, wherein the bundle of spinnable fibers is spun while being twisted within a range of ± 20% of the number of twists calculated by a twist factor of ordinary warp or sweet twist warp. A rotatable bobbin around which a thin metal wire is wound, a winding around which a bundle of spinable fibers is wound, a draft device having three or more and five or less winding rollers, the thin metal wire and the spinnability A spindle that rotates to wind up a core yarn formed by winding a bundle of fibers, a detachable winding jig having a taper on the outer periphery that is fitted into a portion of the spindle that winds up the core yarn, and the spindle A core yarn manufacturing apparatus comprising a traveler that can rotate and move up and down within a range in which the core yarn is wound by the winding jig,
By making the feeding speed determined by the rotational speed of the front roller closest to the spindle among the winding rollers of the drafting device slower than the winding speed determined by the rotational speed of the spindle, the thin metal wire has a cutting strength of about 40. A range of ± 20% of the number of twists calculated by the twist coefficient of ordinary warp or sweet twist warp in the bundle of spinnable fibers by adjusting the number of revolutions of the spindle while applying a tension of about 70% to about 70% An apparatus for producing a core yarn, wherein the yarn is spun while being twisted.   4. The core yarn manufacturing apparatus according to claim 3, wherein the thin metal wire is always drawn out in parallel with the flange of the bobbin by moving the bobbin little by little while rotating. The core yarn according to claim 1 or the core yarn manufacturing method according to claim 2, or the method according to claim 3 or claim 4, wherein the thickness of the thin metal wire is in the range of about 20 µm to about 120 µm. The manufacturing apparatus of the core yarn of description.

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