JP2013002014A - Artificial hair fiber and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide artificial hair fiber retaining heat resistance and fibrous physicality such as strong ductility, and having luster, appearance and touch near to those of human hair.SOLUTION: The artificial hair fiber which is obtained by subjecting thermoplastic resin to melt spinning has 1-50 mm cycle of fineness change in a fibrous flow direction. The artificial hair fiber is given fineness change at a prescribed cycle in the fibrous flow direction to present nonuniformity like human hair, and express luster, appearance and touch similar to those of human hair.

Description

  The present technology relates to a fiber for artificial hair and a method for producing the same. More specifically, the present invention relates to artificial hair fibers having a predetermined change in fineness in the fiber flow direction.

  In hair ornaments such as wigs, hair wigs, furs, hair bands, doll hairs, conventionally, fibers for human hair or artificial hair (for example, modacrylic fiber, polyvinyl chloride fiber, etc.) have been used. In recent years, since the supply of human hair has become difficult, the importance of artificial hair fibers has increased.

  Various techniques have been made with respect to the fineness of the artificial hair fiber in order to give the artificial hair fiber a gloss, appearance and feel similar to human hair. For example, Patent Document 1 discloses an acrylic fiber having a single fiber fineness of 30 to 85 dtex having a predetermined composition for the purpose of providing a fiber for artificial hair that can cover a wide range of styles when used as artificial hair. And the fiber for artificial hair which mixed the vinyl chloride type fiber whose fineness of a single fiber is 30-85 dtex by the predetermined ratio is disclosed.

JP 2002-227020 A Japanese Patent Laid-Open No. 10-168647

  The main object of the present technology is to provide a fiber for artificial hair that maintains fiber physical properties such as heat resistance and high elongation, and has a gloss, appearance, and feel close to human hair.

In order to solve the above problems, the present technology provides a fiber for artificial hair obtained by melt spinning a thermoplastic resin, wherein the fiber has a fineness change period in the fiber flow direction of 1 to 50 mm.
This artificial hair fiber exhibits non-uniformity similar to human hair by being given a change in fineness of a predetermined period in the fiber flow direction, and exhibits gloss, appearance, and tactile sensation similar to human hair.
In this fiber for artificial hair, it is preferable that the fineness within the change period is 20 dtex at the minimum value and 150 dtex at the maximum value.

Further, the present technology is a method for producing a fiber for artificial hair by melt spinning a thermoplastic resin, and includes a step of imparting to the fiber for artificial hair a fineness change having a period of 1 to 50 mm in the fiber flow direction. A manufacturing method is provided.
In this manufacturing method, the step may be any one or more of the following (1) to (4).
(1) A step of melt spinning the thermoplastic resin as a strand having a fineness of 800 to 2000 dtex from a nozzle.
(2) A step of heating the strand after melt spinning at 200 to 280 ° C.
(3) A step of adding 1.2 × 10 ^{−3 to} 12.5 × 10 ⁻³ N / tension to the cooled strand to form an unstretched yarn having a fineness of 400 dtex or less.
(4) A step of heat-drawing and heat-releasing the undrawn yarn to obtain a fiber having a fineness of 150 dtex or less.

  The present technology provides a fiber for artificial hair that maintains the physical properties of fibers such as heat resistance and high elongation, and has a natural luster, appearance, and feel close to human hair.

It is a schematic diagram explaining the example of the real cross section of the cross section of the fiber for artificial hair, and a virtual cross section.

  Hereinafter, preferred embodiments for carrying out the present technology will be described with reference to the drawings. In addition, embodiment described below shows an example of typical embodiment of this technique, and, thereby, the scope of this technique is not interpreted narrowly.

1. Artificial hair fiber (1) Fineness The artificial hair fiber according to the present technology is a fiber for artificial hair obtained by melt spinning a thermoplastic resin, and the fineness of the fiber changes in the fiber flow direction at a constant repetition. The period of change in fineness is 1 to 50 mm.

  In the conventional artificial hair fibers, the present inventors have found that the fineness is uniform or almost uniform, lacks the natural non-uniformity seen in human hair, and has a luster, appearance and touch that do not appear to be human hair. It was noticed that it became a factor to present. And by giving a predetermined fineness change to the fiber for artificial hair, the fiber for artificial hair which showed the nonuniformity similarly to human hair, and exhibited the glossiness, external appearance, and touch feeling similar to human hair was completed.

  In the artificial hair fiber according to the present technology, the minimum value of the fineness within the change period is preferably 20 dtex, and the maximum value is preferably 150 dtex. Within this range, suitable gloss, appearance and feel can be obtained.

In this technique, the fineness was measured as follows.
One randomly extracted fiber is set on the rotating shaft. Next, using a laser displacement meter, the maximum value (L value) and the minimum value (b value) of the fiber diameter are measured while rotating the yarn.
A virtual sectional area of the yarn is calculated from the obtained L and b values and the correction coefficient.
The yarn fineness (dtex) is calculated from the specific gravity and the virtual cross-sectional area measured separately.
As the correction coefficient, a ratio between the virtual cross-sectional area calculated from the L value and the b value and the actual cross-sectional area was used. The actual cross-sectional area was obtained by observing the cross section of the yarn using a laser microscope and using analysis software.

As an example, the actual cross-sectional area, L value, b value, and virtual cross-sectional area of a fiber for artificial hair having a hook-shaped cross-sectional shape (see, for example, Patent Document 2) will be described. The cross-section of the cocoon-shaped artificial hair fiber has the shape shown in FIG. In the figure, the symbol L and the symbol b indicate the maximum value (L value) and the minimum value (b value) of the fiber diameter, respectively. In order to calculate the area of this cross section, the cross section was hypothesized as the shape shown in FIG. 1B, and the virtual cross section was calculated by the following equation.
L / 4 × b / 2 × π (circumferential ratio) × 2 = πbL / 4

(2) Thermoplastic resin Examples of the thermoplastic resin used for the artificial hair fiber according to the present technology include low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, and ethylene-α-olefin. At least one polyolefin resin selected from polymers, polypropylene (including homopolymers, random polymers, block polymers), propylene-α-olefin copolymers, ethylene-vinyl acetate copolymers, Polyester resin such as polyethylene terephthalate, polybutylene terephthalate and polyethylene naphthalate, polyamide resin, polyvinyl chloride resin, vinylidene chloride resin, polystyrene resin, methacrylic resin, polyvinyl alcohol resin, polyvinylidene chloride or copolymer thereof, polyvinyl fluoride Mixtures of Den resin and polyvinylidene fluoride resin and PMMA resin or the like is used. These resin components may be used alone or in combination of two or more.

  When the thermoplastic resin is a vinyl chloride homopolymer, a vinyl chloride homopolymer having a viscosity average degree of polymerization of 600 to 2000 is particularly preferred in terms of quality such as tensile properties. Moreover, the mixture formed by mixing 2 or more types of homopolymers of vinyl chloride having different degrees of polymerization can also be used.

  The polymerization method of the vinyl chloride resin is not particularly limited, and may be bulk polymerization, solution polymerization, suspension polymerization, emulsion polymerization, or the like. Examples of the vinyl chloride resin include polyvinyl chloride, chlorinated polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, vinyl chloride-ethylene copolymer, vinyl chloride-propylene copolymer, vinyl chloride-styrene copolymer. Polymer, vinyl chloride-isobutylene copolymer, vinyl chloride-vinylidene chloride copolymer, vinyl chloride-styrene-maleic anhydride terpolymer, vinyl chloride-styrene-acrylonitrile terpolymer, vinyl chloride-butadiene copolymer Polymer, vinyl chloride-isoprene copolymer, vinyl chloride-chlorinated propylene copolymer, vinyl chloride-vinylidene chloride-vinyl acetate terpolymer, vinyl chloride-maleic ester copolymer, vinyl chloride-methacrylic acid Ester copolymers, vinyl chloride-acrylonitrile copolymers, vinyl chloride-various vinyl esters Vinyl chloride resins such as ter-copolymers, and their blends, or synthetic resins not containing these vinyl chloride resins and other chlorines, such as acrylonitrile-styrene copolymers, acrylonitrile-styrene-butadiene Ternary copolymer, ethylene-vinyl acetate copolymer, ethylene-ethyl (meth) acrylate copolymer, polyester, blended products with polyvinylidene chloride, chlorinated polyethylene, block copolymer, graft copolymer, etc. Can be mentioned.

Conventionally known additives may be blended with the vinyl chloride resin as long as the properties of the resulting vinyl chloride fiber are not impaired.
Additives include heat stabilizers, plasticizers, lubricants, compatibilizers, processing aids, reinforcing agents, UV absorbers, antioxidants, antistatic agents, fillers, flame retardants, pigments, initial color improvers, and electrical conductivity. There are property imparting agents, surface treatment agents, light stabilizers, fragrances, processability improving agents and the like.
Examples of processability improvers include EVA resins, polyurethane resins, chlorinated polyethylene resins, MBS resins, ABS resins, and the like. The blending amount of these processability improvers is preferably about 0.5 to 10 parts by weight with respect to 100 parts by weight of the vinyl chloride resin.

The vinyl chloride resin can suppress initial coloration by containing an organic acid zinc salt or a β-diketone compound.
Examples of the organic acid include carboxylic acid, phenols, and organic phosphoric acid. The organic acid zinc salt may be a normal salt, an acid salt, a basic salt or an overbased salt.
Examples of the carboxylic acid include caproic acid, caprylic acid, pelargonic acid, 2-ethylhexylic acid, capric acid, neodecanoic acid, undecylenic acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, 12-hydroxy Stearic acid, chlorostearic acid, 12-ketostearic acid, phenylstearic acid, ricinoleic acid, linoleic acid, linolenic acid, oleic acid, arachidic acid, behenic acid, erucic acid, brassic acid and similar acids, tallow fatty acid, coconut oil fatty acid Natural acid mixtures such as tung oil fatty acid, soybean oil fatty acid and cottonseed oil fatty acid, benzoic acid, p-tert-butylbenzoic acid, ethylbenzoic acid, isopropylbenzoic acid, toluic acid, xylic acid, salicylic acid, 5- Tertiary octylsalicylic acid, naphthenic acid, cyclo Cyclohexanecarboxylic acid, adipic acid, maleic acid, acrylic acid, and methacrylic acid.
Examples of phenols include phenol, cresol, ethylphenol, cyclohexylphenol, nonylphenol, dodecylphenol, and the like.
Examples of the organic phosphoric acid include mono- or dioctyl phosphoric acid, mono- or didodecyl phosphoric acid, mono- or dioctadecyl phosphoric acid, mono- or di (nonylphenyl) phosphoric acid, phosphonic acid nonylphenyl ester, and phosphonic acid stearyl ester.
The compounding amount of these organic acid zinc salts is preferably 0.01 to 10 parts by weight and more preferably 0.05 to 5 parts by weight with respect to 100 parts by weight of the vinyl chloride resin.
Examples of the β-diketone compound include dibenzoylmethane, benzoylacetone, stearoylbenzoylmethane, caproylbenzoylmethane, dehydroacetic acid, tribenzoylmethane, 1,3-bis (benzoylacetyl) benzene, and metal salts thereof (lithium, Sodium, potassium, calcium, magnesium, barium, zinc, etc.).
0.01-10 weight part is preferable with respect to 100 weight part of vinyl chloride resin, and, as for the compounding quantity of (beta) -diketone compound, 0.05-5 weight part is more preferable.

(3) Hair ornaments The artificial hair fibers can be used as they are for hair ornaments such as wigs, hair wigs, fur, hair bands, doll hairs, etc., but they may be used after dyeing. As pigments, dyes, auxiliaries and the like used for dyeing, those having good weather resistance and flame retardancy are preferable. Further, the artificial hair fibers may be used after being treated with a silicone-based fiber surface treatment agent or a softening agent in order to ensure gloss and feel.

  The artificial hair fiber may be used in combination with other artificial hair materials such as polyester fiber, modacrylic fiber, nylon fiber, or human hair.

2. Manufacturing method for artificial hair fibers (1) Melt spinning process For artificial hair fibers, thermoplastic resin and additives as necessary are mixed using a mixing facility, and the mixture is put into an extruder and melt-spun. . A ribbon blender, a Henschel mixer, etc. are used for mixing equipment. The mixture may be directly spun in powder form, or may be spun after granulating with an extruder, kneader, mixed roll or the like. As the extruder, for example, a single-screw extruder, a different-direction twin-screw extruder, a conical twin-screw extruder, or the like can be used, and among these, a single-screw extruder having a diameter of about 20 to 90 mm is preferably used.

  The nozzle used for melt spinning preferably has 120 or more nozzle holes. When the number of nozzle holes in the die is less than 120, the resin pressure increases, resin leakage is likely to occur, and the degree of nozzle wear may increase.

  The shape of the nozzle hole of the die is not particularly limited, and may be appropriately selected according to the cross-sectional shape of the target artificial hair fiber, such as a circular shape, an elliptical shape, a bowl shape, a Y shape, or an X shape. . The shape of the nozzle hole is particularly preferably a hook-like shape in order to obtain a fiber having an appearance and touch feel similar to human hair.

  The arrangement of the nozzle holes of the die is not particularly limited, but is preferably arranged concentrically. In particular, when a multi-type nozzle is used, it is preferable that the interval between adjacent nozzle holes is 2 to 5 mm, and nozzle holes having different shapes are arranged.

  The resin temperature at the nozzle hole outlet when melt spinning the strand is preferably adjusted to 190 ° C. or lower. When the resin temperature exceeds 190 ° C., a resin pool (so-called grease) is generated at the nozzle hole outlet of the die, which may cause a single yarn breakage of the strand. The preferable range of the resin temperature at the nozzle hole outlet is 165 ° C to 190 ° C, more preferably 170 ° C to 185 ° C. In order to set the resin temperature at the nozzle hole outlet to 190 ° C. or lower, the cylinder temperature of the extruder should be about 140 to 165 ° C., and the dies and nozzle temperatures should be adjusted to about 160 to 170 ° C.

  The strand is melt-spun in a range of fineness of 800 to 2000 dtex or less. If the fineness is less than 800 dtex, the yarn may not be fully stretched, and yarn breakage may easily occur. On the other hand, when the fineness exceeds 2000 dtex, the yarn temperature may not be increased and yarn breakage may occur. The fineness is preferably set in the range of 800 to 2000 dtex, more preferably 1000 to 1800 dtex.

  In this step, by subjecting the thermoplastic resin to melt spinning from a nozzle as a strand having a fineness of 800 to 2000 dtex, imparting a change in fineness with a period of 1 to 50 mm in the fiber flow direction to the finally obtained artificial hair fiber Can do.

(2) Heating process The strand melt-spun from the die is preferably heated at 200 to 280 ° C. by a heating device immediately after melt spinning. By heating in this temperature range, it is possible to stably stretch the strands and prevent the adjacent strands from fusing together to cause single yarn breakage.

  Examples of the heating device include an infrared heater, a heating cylinder, and laser heating. Among these, it is preferable to use a heated cylinder because the strand can be efficiently heated.

  In this step, by heating the strand after melt spinning at 200 to 280 ° C., it is possible to impart a fineness change having a period of 1 to 50 mm in the fiber flow direction to the finally obtained artificial hair fiber.

(3) Winding step The strand is cooled by a cooling device, and the tension at the outlet of the cold wind tube is adjusted to 1.2 × 10 ^{−3 to} 12.5 × 10 ⁻³ N / piece or less. If the tension is less than 1.2 × 10 ⁻³ N / piece, the length of the yarn becomes non-uniform and the single yarn is likely to break. On the other hand, if the tension exceeds 12.5 × 10 ⁻³ N / strand, the ductility of the strand is lost, and the strand is not drafted and single yarn breakage occurs.

  Examples of the cooling device include a water cooling bath, an air cooling device, and a mist device. Among these, it is preferable to use an air cooling device because the strand can be cooled efficiently.

  The fineness of the cooled strand (undrawn yarn) is adjusted to 400 dtex or less. If the fineness of the undrawn yarn exceeds 400 dtex, the feel of the resulting fiber tends to be poor.

In this step, artificial tension finally obtained by applying a tension of 1.2 × 10 ^{−3 to} 12.5 × 10 ⁻³ N / strand to the strand after cooling to obtain an unstretched yarn having a fineness of 400 dtex or less. The fineness change which makes 1-50 mm a period in a fiber flow direction can be provided to the fiber for hair.

(4) Thermal stretching / relaxation process

  The undrawn yarn is subjected to a drawing treatment and a relaxation treatment by a conventionally known method to obtain a fiber for artificial hair having a fineness of 150 dtex or less. When the fineness exceeds 150 detex, it is not preferable because it is too bristle as artificial hair or doll hair.

  Stretching may be performed by any of a two-step method in which a strand is once wound and then stretched, or a direct spinning stretching method in which a strand is continuously stretched without being wound. The hot stretching is performed by a one-stage stretching method or a multi-stage stretching method having two or more stages. As a heating means in the heat stretching, a heating roller, a heat plate, a steam jet device, a hot water tank, or the like can be used, and these can be used in combination as appropriate. It is also effective to perform multistage stretching using a nip roll.

  As the stretching treatment conditions, it is preferable that stretching is performed about 2 to 4 times in an atmosphere at a temperature of 70 to 130 ° C. If the stretching temperature is less than 70 ° C, the strength of the fiber is lowered, and single yarn breakage and white hair (a phenomenon in which voids are generated in the yarn and become white) are likely to occur. Is not preferable. On the other hand, if the draw ratio is less than 2 times, the fiber does not exhibit sufficient strength, and if it is 4 times or more, single yarn breakage tends to occur during the drawing treatment, which is not preferable.

  In order to ensure the quality for artificial hair, it is preferable that the fiber subjected to the drawing treatment is subjected to a heat treatment to heat-treat the fiber by about 1 to 30%.

  As a temperature condition of this heat treatment, it is preferable to carry out in an atmosphere having an atmospheric temperature of 100 to 130 ° C.

  In this step, the undrawn yarn is hot drawn and relaxed to give a fiber having a fineness of 150 dtex or less, thereby giving the fiber for artificial hair finally obtained a fineness change with a period of 1 to 50 mm in the fiber flow direction. can do.

  In the method for producing artificial hair fibers according to the present technology described above, if necessary, conventionally known technologies related to melt spinning, for example, technologies related to various nozzle cross-sectional shapes, technologies related to heating cylinders, and drawing treatment. Technologies related to heat treatment and technologies related to heat treatment can be used in any combination.

<Example 1>
1. Preparation of vinyl chloride resin composition 100 parts by mass of vinyl chloride resin (manufactured by Taiyo PVC Co., TH-1000), 3 parts by mass of hydrotalcite composite stabilizer (manufactured by Nissan Chemical Industries, CP-410A) (the thermal stabilizer component is 1.5 parts by mass), 0.5 parts by mass of epoxidized soybean oil (manufactured by Asahi Denka Kogyo Co., Ltd., O-130P), and 0.8 parts by mass of ester lubricant (manufactured by Riken Vitamin Co., Ltd., EW-100). The resin composition was mixed with a Henschel mixer to obtain a vinyl chloride resin composition.

2. As the melt spinning extruder, a full flight screw (compression ratio 2.3) was used in combination with a 40 mm short shaft extruder manufactured by Toshiba Machine Co., Ltd. A die having a bowl-shaped nozzle hole (number of holes: 120, hole interval: 3 mm) was used. The cylinder temperature was adjusted to 160 ° C. and the nozzle temperature was adjusted to 170 ° C. After reaching a steady state, the number of screw rotations was determined so that the discharge rate was 12 kg / h, and a strand having a fineness of 1000 dtex was formed. The strand was melted and discharged in the vertical direction from the die, and the undrawn yarn was wound at a constant speed by a take-up machine installed at a position 3 m immediately below the nozzle. At this time, the temperature of the heating device and the cooling device and the take-up speed of the take-up machine were adjusted so that the fineness of the undrawn yarn was about 180 dtex. The temperature of the heating device was 250 ° C. The tension | tensile_strength by a take-up machine was 3.0 * 10 < ^-3 > N / ^piece . The thermal stretching was performed by a two-stage stretching method, and the steam jet apparatus was used to make 3.25 times in an atmosphere at a temperature of 100 ° C. The stretched fiber was subjected to a thermal relaxation treatment of about 25%.

3. Fineness measurement One randomly extracted fiber is set on the rotating shaft. Subsequently, the maximum value (L value) and the minimum value (b value) of the fiber diameter were measured using a laser displacement meter (LS-7600, Keyence Corporation) while rotating the yarn. The cross section of the fiber for artificial hair having a hook-shaped cross-sectional shape was hypothesized as the shape shown in FIG.
L / 4 × b / 2 × π (circumferential ratio) × 2 = πbL / 4
The fineness (dtex) of the yarn was calculated from the specific gravity and the virtual cross-sectional area measured separately.
As the correction coefficient, the ratio (1.09) of the virtual cross-sectional area and the real cross-sectional area calculated from the L value and the b value was used. The actual cross-sectional area was determined by observing the cross section of the yarn using a laser microscope (VK-8510, Keyence Corporation) and using analysis software (VK-H1W, Keyence Corporation).

4). Characteristic Evaluation of Artificial Hair Fiber (1) Tensile Strength Evaluation Based on JIS-L1069, ten single fibers are randomly selected from a fiber (annealed yarn) bundle, a tensile test of each single fiber is performed, and an average is obtained. The value was determined. The test temperature was 23 ° C., the relative humidity was 50%, the tensile speed was 200 mm / min, and the spatial distance (distance between chucks) was 200 mm. Evaluation was performed according to the following criteria.
○: Tensile strength (cN / dtex) 3.0 or more Δ: Tensile strength (cN / dtex) 0.5 or more and less than 1.0 ×: Tensile strength (cN / dtex) less than 0.5

(2) Gloss evaluation A tow filament having a length of 30 cm and a total fineness of 100,000 dtex was evaluated visually under the following criteria under sunlight.
○: The gloss is adjusted to a level equivalent to human hair.
Δ: Slightly too glossy or slightly too glossy
X: Too much gloss or too little gloss.

(3) Tactile sensation sensory evaluation was conducted by a professional hairdresser and evaluated in three stages.
○: Very soft texture similar to human hair.
Δ: A slightly harder texture than human hair.
X: A texture harder than human hair.

(4) Evaluation of volume feeling A filament made of eyelashes was wound around a pipe having a diameter of 32 mm, and curled at 60 ° C. for 60 minutes at 120 ° C. and a relative humidity of 100%. After standing at room temperature for 60 minutes, one end of the curled filament was fixed and suspended, and the volume of the curl was visually evaluated according to the following criteria.
○: There is a volume feeling very similar to human hair.
Δ: Slightly less volume.
X: There is no volume feeling.

  The results of the fineness measurement and the evaluation results of the fiber properties are shown in the following table.

<Examples 2-11 and Comparative Examples 1-2>
A fiber was produced in the same manner as in Example 1 except that the strand fineness, the temperature in the heating step, and the tension in the winding step were changed as shown in Table 1.

  It was confirmed that the fibers of the examples were superior in tensile strength, gloss, touch and volume to the fibers of the comparative examples, and had natural gloss, appearance and touch similar to human hair.

  The artificial hair fiber according to the present technology maintains the physical properties of the fiber such as heat resistance and high elongation, and has a natural luster, appearance, and feel close to human hair. Therefore, the artificial hair fiber according to the present technology can be suitably used for hair ornaments such as wigs, hair wigs, furs, hair bands, doll hairs.

Claims (8)

  A fiber for artificial hair obtained by melt spinning a thermoplastic resin, wherein the change period of the fineness in the fiber flow direction is 1 to 50 mm.   The fiber for artificial hair according to claim 1, wherein the minimum value of the fineness within the change period is 20 dtex and the maximum value is 150 dtex. A method for producing a fiber for artificial hair by melt spinning a thermoplastic resin,
The manufacturing method including the process of providing the fineness change which makes 1-50 mm a period in a fiber flow direction to the said fiber for artificial hair.   The method according to claim 3, wherein the step is a step of melt spinning the thermoplastic resin as a strand having a fineness of 800 to 2000 dtex from a nozzle.   The method according to claim 3 or 4, wherein the step is a step of heating the strand after melt spinning at 200 to 280 ° C. The process, strands ^{1.2 × 10 -3 ~12.5 × 10 -3} N / book tensioned after cooling, according to claim 3-5 is a step of the following undrawn yarn fineness 400dtex The manufacturing method as described in any one.   The manufacturing method according to any one of claims 3 to 6, wherein the step is a step in which an undrawn yarn is heat-drawn and heat-relaxed to obtain a fiber having a fineness of 150 dtex or less.   A hair ornament using the artificial hair fiber according to claim 1 or 2.

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