JP2019131900A - Covering yarn, twisted yarn and fiber structure obtained by using the same - Google Patents

Abstract

To provide a covering yarn in which a fiber yarn itself has a soft feeling equivalent to that of an ordinary fiber yarn for clothing, and which has good conductivity and gas permeability and enables domestic washing, and a twisted yarn and a fiber structure obtained by using the same.SOLUTION: The covering yarn 1,4,6 comprises a metal filament 2 and organic fiber yarns 3,5. The metal filament 2 is arranged in a core and the organic fiber yarns 3,5 are arranged in a sheath and the covering yarn is straight as a whole. The metal filament 2 has a diameter of 22 μm or less. The covering yarn 1,4,6 is conductive. The metal filament 2 is preferably at least one filament selected from tungsten, molybdenum and stainless steel. The twisted yarn comprises a core yarn, a fancy yarn and a press yarn. The fancy yarn has a loop or slack. At least one yarn selected from the core yarn, the fancy yarn and the press yarn is the aforementioned covering yarn and imparted with a real twist as a whole.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a covering yarn including a metal filament, a twisted yarn, and a fiber structure using the same.

  For so-called wearable clothing that incorporates devices that measure blood pressure, pulse, etc., there is a conductive property that connects the device that measures blood pressure, pulse, etc., and communication means for sending data taken out of the device to the outside. Yarn or conductive material is used. Patent Document 1 proposes carbon-based conductive yarns, metal or alloy plating yarns, conductive resin fiber yarns, metal fiber yarns, and the like as the conductive yarns. Patent Document 2 proposes a nylon yarn kneaded with conductive carbon fine particles. Patent Document 3 proposes a thread obtained by slitting a metal deposited film obtained by depositing a metal such as gold or silver on the surface of a polyester film. Patent Document 4 proposes a flexible electrode as an electrode used for wearable clothing.

JP 2016-129115 A JP 2017-201063 A JP 2009-044439 A JP 2015-139506 A

  However, the conventional conductive yarn has a problem that it is thick and hard, cannot be dyed, and easily accumulates sweat.

  In order to solve the above-described conventional problems, the present invention provides a cover in which the fiber yarn itself has a soft texture equivalent to that of a normal fiber yarn for clothing, good electrical conductivity, air permeability, and home washing. A ring yarn and a twisted yarn and a fiber structure using the same are provided.

  The covering yarn of the present invention is a covering yarn including a metal filament and an organic fiber yarn, wherein the metal filament is disposed in a core, the organic fiber yarn is disposed in a sheath, and is generally straight, The metal filament has a diameter of 22 μm or less, and the covering yarn is conductive.

  The first twisted yarn of the present invention is a twisted yarn of at least two yarns, at least one yarn constituting the twisted yarn is the covering yarn, and the other yarn is an organic fiber yarn. Features.

  The second twisted yarn of the present invention is composed of a core yarn, a flower yarn and a presser yarn, and the flower yarn is a twisted yarn having a loop or a slack, and is at least one selected from the core yarn, the flower yarn and the presser yarn. One of the yarns is the covering yarn described above, and is characterized in that a real twist is applied to the whole.

  The third twisted yarn of the present invention is a twisted yarn including a metal filament and an organic fiber yarn, and the organic fiber yarn is at least one fiber yarn selected from a synthetic fiber, a natural fiber, and a recycled fiber, and the metal filament Is 22 μm or less in diameter, and the twisted yarn is conductive.

  The fiber structure of the present invention includes the covering yarn or the twisted yarn.

  The covering yarn of the present invention, the twisted yarn, and the fiber structure using the same have a soft texture equivalent to that of a normal clothing fiber yarn while being a metal wire by reducing the diameter of the metal filament. In addition, it is possible to provide a covering yarn, a twisted yarn, and a fiber structure using the same, which have good conductivity, good air permeability, and can be washed at home. These properties are useful for so-called wearable clothing that can measure blood pressure, heart rate, body temperature, and the like. Furthermore, since the covering yarn and the twisted yarn of the present invention have high strength, they are useful for fishing lines.

FIG. 1A is a plan view of a single covering yarn according to an embodiment of the present invention, FIG. 1B is a plan view of a double covering yarn, and FIG. It is plane explanatory drawing made into the single covering yarn. FIG. 2 is an explanatory plan view of the design twisted yarn. FIG. 3 is a photograph showing the conductivity test of the yarn of Example 1 of the present invention. FIG. 4 is a photograph showing the conductivity test of the yarn of Example 2 of the present invention. FIG. 5 is a photograph showing the conductivity test of the yarn of Example 3 of the present invention. FIG. 6 is a photograph showing the conductivity test of the yarn of Example 4 of the present invention. FIG. 7 is a photograph showing the conductivity test of the yarn of Example 5 of the present invention. FIG. 8 is a photograph showing the conductivity test of the yarn of Example 6 of the present invention.

  The present invention is a covering yarn including a metal filament and an organic fiber yarn, wherein the metal filament is disposed in the core and the organic fiber yarn is disposed in the sheath, and is generally straight. Metal filaments alone are difficult to make into fiber structures such as twisted yarns, woven fabrics, knitted fabrics, braided cords, etc. However, when organic fiber yarns are wound, they can be supplied to twisted yarns, looms, knitting machines, braided cord manufacturing equipment, A structure can be manufactured. In the present invention, the organic fiber is, for example, natural fibers such as cotton, hemp, wool, silk, polyester, nylon, acrylic, vinylon, polyolefin, para-aramid, meta-aramid, polyarylate, polybenzoate, and other synthetic fibers, Includes recycled fibers such as rayon. When the water-soluble fiber yarn is covered, the water-soluble fiber yarn can be removed after forming the fiber structure, and the metal filament can be exposed to the outside to form an electrical terminal. Useful for pyrogenic clothing. It is also possible to make a fiber structure of a single metal filament.

  The metal filament is preferably at least one filament selected from tungsten (W), molybdenum (Mo), and stainless steel (SUS). Tungsten (W) is used in the light emitting part of incandescent lamps and discharge lamps. The melting point is 3380 ° C., but the filament has a lower melting point because it contains a small amount of dope. Molybdenum (Mo) has a melting point of 1620 ° C. Stainless steel (SUS) wire is said to be usable within an annealing temperature range of 1150 ° C. or less. For example, a stainless steel wire with a diameter of 11 μm is sold by Nippon Seisen Co., Ltd. The wire diameter of the metal filament is preferably 5 to 22 μm, more preferably 5 to 15 μm, and particularly preferably 8 to 12 μm. If it is the said diameter, even if it touches skin, it is hard to feel a coarse feeling. Further, when the organic fiber yarn is covered and / or twisted, the metal filament is thin and difficult to see, and does not hinder the dyeability and color of the organic fiber yarn. The metal filament may be monofilament or multifilament, but monofilament is easier to handle. When a filament (long fiber yarn) is used, electrical conduction can be achieved at any part including both ends of the fiber structure.

  The water-soluble fiber yarn includes, for example, water-soluble vinylon, and can be dissolved with warm water or hot water. The covering yarn in which the water-soluble fiber yarn is wound around the surface of the metal filament is straight as a whole. This is because the shape of the metal filament remains. The water-soluble vinylon may be a filament yarn or a spun yarn.

  The covering yarn is preferably a single covering yarn or a double covering yarn. Among these, the single covering yarn is preferable because it is easy to manufacture and the cost is low. It is preferable that a water-soluble fiber yarn is disposed as a splicing yarn on the metal filament of the core yarn. When such a splicing yarn is arranged, the integrity of the metal filament and the covering yarn is increased.

  The first twisted yarn of the present invention is a twisted yarn of at least two yarns, at least one yarn constituting the twisted yarn is the covering yarn, and the other yarn is an organic fiber yarn.

  The second twisted yarn of the present invention is composed of a core yarn, a flower yarn and a presser yarn, and the flower yarn is a twisted yarn having a loop or a slack, and is at least one yarn selected from the core yarn, the flower yarn and the presser yarn. Is the above-mentioned covering yarn, and the whole is actually twisted. This twisted yarn is also called a design twisted yarn. Thereby, the process passability of a loom, a knitting machine, and a nonwoven fabric manufacturing apparatus can be made favorable. Since the flower yarn has a loop or sagging, when a covering yarn including a metal filament is used for the yarn, the metal fiber can be exposed to the outside after removing the water-soluble fiber yarn. This design twisted yarn is preferably composed of one core yarn, a plurality of flower yarns (preferably 2 to 6), and a presser yarn. In order to improve the handleability of the design twisted yarn, it is preferable to apply a real twist of about 100 to 1000 times / m as a whole.

  The third twisted yarn of the present invention is a twisted yarn including a metal filament and an organic fiber yarn, wherein the metal filament is at least one filament selected from tungsten, molybdenum and stainless steel, and the organic fiber yarn is a synthetic fiber, natural fiber It is at least one fiber yarn selected from fibers and recycled fibers, the metal filament has a diameter of 22 μm or less, and the twisted yarn is conductive. This twisted yarn does not require a water-soluble fiber yarn. For example, it can be composed of a two-component yarn of tungsten filament and cotton spun yarn. This twisted yarn can be reduced in cost because it does not use water-soluble fiber yarns, can be heat set, and has good workability when it is made into a fiber structure such as a woven fabric, a knitted fabric, a braid, or a sewing thread. The twisted yarn and the obtained fiber structure also have a portion where the metal filament is exposed to the outside of the yarn, and this exposed portion can be used as an electrical terminal. Moreover, this twisted yarn and the obtained fiber structure are conductive, and have exothermicity by supplying power. In this twisted yarn, an organic fiber yarn may be further disposed as a splicing yarn on the metal filament. Furthermore, this thread has high strength when combined with high-strength fibers such as high-strength polyethylene fibers and aramid fibers, and is useful for fishing lines.

  The fiber structure of the present invention is preferably at least one selected from woven fabrics, knitted fabrics, braids and sewing threads. If it does in this way, it will become useful for clothes, an electrode, a conductive wire, a heating wire, etc. For example, when wearable clothing is used, it may be used as a part of the clothing, and may be used as an electrode or a conductive wire. In the case of a conductive wire, it may be used as it is, but may be shielded or covered with an electrical insulator so as not to leak electricity with sweat or water. In addition, since the heart pacemaker is shielded from electromagnetic waves, it can also be used as clothing for protecting the pacemaker.

  The covering yarn and the twisted yarn of the present invention can be produced using a twisting machine such as a ring twisting machine, a double twister, or a tritwister. In particular, a ring twisting machine and a double twister can apply tension, and can be mass-produced, which is preferable in terms of cost.

An example of the advantages of the present invention is as follows.
(1) Since it is a metal wire, it does not peel off and has excellent washability.
(2) Less wear than kneaded yarns of conductive materials such as carbon black.
(3) Since the metal wire is almost invisible, it is difficult to disturb the color of the yarns that are constructed together.
(4) Even if the metal wire is broken, it is difficult to pierce the skin, and because of its thinness, the touch is good.
(5) Static electricity can be removed when combined with static-prone fibers. This is useful for static elimination clothes, work clothes, fire fighting clothes, acrylic sweaters and the like.
(6) Especially in the shape of a loop yarn, there is little tightening as an electrode that contacts the human body during exercise, and the followability to the skin surface is good.
(7) It functions as a conductive wire or as a heat generating wire having heat generation by supplying power.
(8) Wearable clothing uses metal cords, metal plates, and metal snap buttons on the connection surface with the power supply and measuring device, but there are problems such as restrictions on the shape of the device to be connected and the connection surface being hard However, the use of the metal loop yarn in which the covering yarn of the present invention, particularly the melted yarn has been melted, results in a hook-and-loop fastener having a conductive connection surface, which is effective in solving the above problems.

  Hereinafter, it demonstrates using drawing. In the following drawings, the same symbols indicate the same items. FIG. 1A is an explanatory plan view of a single covering yarn 1 according to an embodiment of the present invention. The single covering yarn 1 is a yarn in which an organic fiber yarn or a water-soluble fiber yarn 3 is wound around the surface of a metal filament 2 as a core yarn. FIG. 1B is an explanatory plan view of the double covering yarn 4. This single covering yarn 4 is a yarn in which an organic fiber yarn or a water-soluble fiber yarn 3 is wound around the surface of the metal filament 2 of the core yarn, and a water-soluble fiber yarn 5 is wound around the surface in the opposite direction to the water-soluble fiber yarn 3. is there. FIG. 1C is an explanatory plan view of the single covering yarn 6 in which the splicing yarn 7 is arranged on the metal filament 2 of the core yarn.

  FIG. 2 is an explanatory plan view of the design twisted yarn 8. The design twisted yarn 8 is manufactured using the single covering yarn or the double covering yarn described above, and the flower yarn 10 is arranged in a floating state on the surface of the core yarn 9, and the presser yarn 11 is placed thereon. It is fixed with. The design twisted yarn 8 as a whole is actually twisted about 100 to 1000 times / m.

  Hereinafter, the present invention will be described more specifically with reference to examples. The present invention should not be construed as being limited to the following examples.

Example 1
This example is an example of a two-component straight yarn of tungsten / cotton. Cotton is a metric count, and 80/1 indicates that one of the 80th threads is used (the same applies hereinafter).
<Composition>
Cotton (Cotton) 30/1 × 1 Cotton (Cotton) 80/1 × 1 Tungsten 11 μm × 1 <Twisting method>
Covering twisted yarn (core yarn)
Cotton (Cotton) 30/1 × 1 Tungsten 11μm × 1 (Presser foot)
Cotton (cotton) 80/1 x 1 (twist number)
280 times / m (S twist)

(Example 2)
This example is an example of a three-component design twisted yarn of tungsten / cotton and polyester. D of polyester is denier (the same applies hereinafter).
<Composition, using three straight yarns of Example 1 as flower yarns>
Polyester 150D × 2 Cotton (Cotton) 30/1 × 3 Cotton (Cotton) 80/1 × 3 Tungsten 11 μm × 3 Polyester 75D × 1 <Twisting method>
Loop yarn (flower yarn overfeed 3.5 times)
(Core yarn)
Polyester 150D x 2 (flower yarn)
Cotton (Cotton) 30/1 x 3 Cotton (Cotton) 80/1 x 3 Tungsten 11μm x 3 (Presser foot)
Polyester 75D x 1 (twist number)
600 times / m (S twist)

Example 3
This example is an example of a three-component straight yarn of tungsten, polyester, and dissolved yarn.
<Composition>
Polyester 150D × 1 Water-soluble vinylon 28D × 1 Tungsten 11 μm × 1 <twisting method>
Covering twisted yarn (core yarn)
Polyester 150D x 1 Tungsten 11μm x 1 (Presser foot)
Water-soluble vinylon 28D x 1 (twist number)
280 times / m (S twist)

Example 4
This example is an example of a three-component design yarn of tungsten, polyester, and melt yarn.
<Composition, using three straight yarns of Example 3 as flower yarns>
Polyester 150D × 5 Water-soluble vinylon 28D × 3 Tungsten 11 μm × 3 Polyester 75D × 1 <twisting method>
Loop yarn (flower yarn overfeed 3.26 times)
(Core yarn)
Polyester 150D x 2 (flower yarn)
Polyester 150D x 3 Tungsten 11μm x 3 Water-soluble vinylon 28D x 3 (Presser foot)
Polyester 75D x 1 (twist number)
600 times / m (S twist)

(Example 5)
This embodiment is an example of a tungsten / dissolved yarn and a two-component straight yarn. In the evaluation test, all water-soluble vinylon is dissolved.
<Composition>
Water-soluble vinylon 100D x 1 Water-soluble vinylon 28D x 1 Tungsten 11μm x 1 <twisting method>
Covering twisted yarn (core yarn)
Water-soluble vinylon 100D x 1 tungsten 11μm x 1 (presser thread)
Water-soluble vinylon 28D x 1 (twist number)
280 times / m (S twist)

(Example 6)
This example is an example of a tungsten / dissolved yarn and a two-component design yarn. In the evaluation test, all water-soluble vinylon is dissolved.
<Composition>
(Use two straight yarns for the core yarn)
(5 straight yarns are used for flower yarn)
(Use one straight thread for the presser thread)
Water-soluble vinylon 100D x 8 Water-soluble vinylon 28D x 8 Tungsten 11μm x 8 <Spinning method>
Loop yarn (flower yarn overfeed 2.8 times)
(Core yarn)
Water-soluble vinylon 100D x 2 Water-soluble vinylon 28D x 2 Tungsten 11μm x 2 (flower yarn)
Water-soluble vinylon 100D x 5 Water-soluble vinylon 28D x 5 Tungsten 11μm x 5 (holding thread)
Water-soluble vinylon 100D x 1 Water-soluble vinylon 28D x 1 Tungsten 11μm x 1 (twist number)
600 times / m (S twist)

The conductivity test of the yarns obtained in Examples 1-6 above was performed.
<LED lighting experiment>
(Experiment contents)
A 10 cm test specimen was energized to emit red LED.
(Usage equipment)
LED: Rated voltage 2V Rated current 20mA
Resistance: 6V resistance (180Ω)
Power supply: Two 1.5V alkaline batteries connected in series.
As shown in Table 1, all were conductive. Moreover, the photograph which shows the electroconductivity test of Examples 1-6 is shown in FIGS. 3-8, respectively. Although the yarn of FIG. 7 (Example 5) is thin and cannot be visually observed in the photograph, it can be confirmed that the yarn is continuous because the LED lamp is lit.

Next, the melted yarn was dissolved with the fiber yarn obtained by bundling four design twist yarns (tungsten / cotton / polyester design twist yarn) of Example 2 and the design twist yarn of Example 6 (design twist yarn of tungsten / polyester / dissolved yarn). An exothermic experiment was conducted on a fiber yarn in which four pieces of the same were bundled.
(Experiment contents)
At an ambient temperature of 16 ° C., the temperature of the test piece having a current-carrying portion of 10 cm was measured.
(Usage equipment)
Power supply: Two 1.5V alkaline batteries connected in series.
Temperature measuring instrument: Non-contact thermometer HORIBA IT-540NH
As shown in Table 2, heat generation was observed in the energized portion.

Next, the electrical resistance values of the design twisted yarns of Example 2, Example 4, and Example 6 were measured.
(Experiment contents)
Measures the electrical resistance value at a current-carrying part 10 cm
(Usage equipment)
Measuring instrument: Trusco Nakayama Digital Multi Tester TDE-200A

  The fiber structure of the present invention is useful for clothing, electrodes, conductive wires, heating wires, and the like. For example, when it is used as wearable clothing, it may be used as a part of clothing or as an electrode or conductive wire. When used as a heating wire, it can be applied to heating clothing by the power from the battery. Moreover, since the heart pacemaker is shielded from electromagnetic waves, it can be used as clothing for protecting the pacemaker. Furthermore, it is useful for fishing lines, ropes and the like.

1,6 Single covering yarn 2 Metal filament 3,5 Organic fiber yarn or water-soluble fiber yarn 4 Double covering yarn 7 Splicing yarn 8 Design twist yarn 9 Core yarn 10 Flower yarn 11 Holding yarn

Claims (14)

A covering yarn comprising a metal filament and an organic fiber yarn,
The metal filament is disposed in the core, the organic fiber yarn is disposed in the sheath, and is generally straight.
The metal filament has a diameter of 22 μm or less,
The covering yarn according to claim 1, wherein the covering yarn is conductive.   The covering yarn according to claim 1, wherein the metal filament is a monofilament having a diameter of 15 μm or less.   The covering yarn according to claim 1 or 2, wherein the metal filament is at least one filament selected from tungsten, molybdenum, and stainless steel.   The covering yarn according to any one of claims 1 to 3, wherein the covering yarn is a single covering yarn or a double covering yarn.   The covering yarn according to any one of claims 1 to 4, wherein an organic fiber yarn is further disposed as a splicing yarn on the core yarn.   It is a twisted yarn of at least two yarns, at least one yarn constituting the twisted yarn is the covering yarn according to any one of claims 1 to 5, and the other yarn is an organic fiber yarn. A twisted yarn. Consists of a core yarn, a flower yarn and a presser yarn, the flower yarn is a twisted yarn having a loop or a slack,
The at least one yarn selected from the core yarn, the flower yarn and the presser yarn is the covering yarn according to any one of claims 1 to 5,
A twisted yarn characterized by the fact that the whole is actually twisted.   The twisted yarn according to claim 7, wherein the core yarn is one, the flower yarn is plural, and the presser yarn is one. A twisted yarn comprising a metal filament and an organic fiber yarn,
The organic fiber yarn is at least one fiber yarn selected from synthetic fibers, natural fibers and regenerated fibers,
The metal filament has a diameter of 22 μm or less,
The twisted yarn is characterized in that the twisted yarn is conductive.   The twisted yarn according to claim 9, wherein the metal filament is at least one filament selected from tungsten, molybdenum, and stainless steel.   The twisted yarn according to claim 9 or 10, wherein an organic fiber yarn is further arranged as a splicing yarn on the metal filament.   The twisted yarn according to any one of claims 6 to 11, wherein the metal filament is exposed on a surface of the twisted yarn.   A fiber structure comprising the covering yarn according to any one of claims 1 to 5 or the twisted yarn according to any one of claims 6 to 12.   The fiber structure according to claim 13, wherein the fiber structure is at least one selected from a woven fabric, a knitted fabric, a braid, and a sewing thread.