KR101036527B1 - Artificial hair, wig having artificial hair and method of producing artificial hair - Google Patents

Abstract

The artificial hair bundle 10 is a mixture of the first artificial hair 1 made of polyester resin and the second artificial hair 5 made of polyamide resin, and the first artificial hair 1 is It is formed of polyethylene terephthalate and polybutylene terephthalate, and has a cross-sectional dimension similar to that of natural hair, and a flexural rigidity of the same degree as that of natural hair, and the flexural rigidity is about 6.5-7.8 × 10 ⁻ under a humidity of 40%. ^In the range of ³ gf · cm 2 / strand, the first artificial hair 1 suppresses the convergence of the second artificial hair 5, and the first and second artificial hair 5 are combined with the natural hair. It behaves together.

Artificial Hair, Wig, Polyester, Polyamide, Flexural Stiffness, Focusing

Description

Artificial hair, wig having artificial hair, and manufacturing method of artificial hair {ARTIFICIAL HAIR, WIG HAVING ARTIFICIAL HAIR AND METHOD OF PRODUCING ARTIFICIAL HAIR}

The present invention relates to hair, that is, artificial hair having a feeling and physical properties close to natural hair, a wig to which the artificial hair is attached, and a method of manufacturing the artificial hair.

In general, hair, ie, natural hair, has a diameter of about 80 to 100 μm, and curls are naturally or permanently applied, but curls are loosened and stretched due to exposure to rain or cold. Has characteristics. In addition, it is known that even when the humidity is high and low, the hairs change their physical properties such as moist feeling, tactile feeling, or flexural rigidity. For this reason, as hair used for wigs, natural hair collected from humans or animals has been used for a long time as a material so as to have characteristics that are as close to natural hair as possible. However, in recent years, due to the procurement constraints of natural hair materials and other reasons, synthetic fibers are often manufactured as a wig hair material. For example, polyacrylic, polyester, and polyamide synthetic fibers are artificial. It is used as a material for hair.

Artificial hair by polyacrylic fibers has a low melting point and poor heat resistance, and thus has poor shape retention after perm setting. For example, when the hair is exposed to hot water, processing of curls and the like provided to the fiber is weak. have. In addition, the feeling such as moist feeling and touch also differs from the hair, and thus the toughness is insufficient, so that the sense of discomfort cannot be denied.

On the other hand, although polyester fiber is a material excellent in both strength and heat resistance, since it has very low hygroscopicity compared with natural hair, it shows a different appearance, texture, and physical properties from natural hair, for example, in a high humidity environment, If you use as hair, gives a sense of discomfort. Natural hair gets wet in the rain or hair curls, so when exposed to moisture, curls loosen and spread. However, polyester-based fibers have very low hygroscopicity and moisture retention, and therefore have a property of abundant curl retention, and most of these unevennesses do not occur. Therefore, after artificial hair is made of polyester fiber and the curling treatment is performed once, the curl given is hardly released even when the humidity is high, but this is largely different from the behavior of natural hair, resulting in unnatural feeling. As described above, the polyester fiber cannot exhibit the same behavior as natural hair in which a feeling of moist feeling, feel, or the like, or physical properties such as curl holding force change depending on the height of humidity.

In addition, polyester-based fibers having a diameter of about 80 to 100 µm, such as natural hair, have excessively high flexural rigidity compared to natural hair. The flexural stiffness value is a property value related to the feel and texture of the fiber, which is necessary for bending, and is a property value widely known in the textile fabric industry that can be quantified by a hem measurement method (Non-Patent Document) One). A device capable of measuring the flexural rigidity of one strand of fiber or hair has also been developed (Non-Patent Document 2). This flexural stiffness, also called bending strength, is defined as the reciprocal of the curvature change produced when a unit-size bending moment is applied to artificial hair. The greater the flexural rigidity of the artificial hair, the more artificial hair is resistant to bending and not bent, that is, hard and hard to bend. On the contrary, the smaller the flexural stiffness, the easier it is to bend, and the flexible artificial hair.

When artificial hair is made of polyester having a diameter of about 80 to 100 μm, such as natural hair, its flexural rigidity is much higher than that of natural hair. Therefore, when it is planted in a wig base, standing up is excessively large. In addition, the feel of polyester-based hair has a higher rigidity than that of natural hair, and cannot express moderate softness such as natural hair. Therefore, when the hair of the polyester type hair is used as the hair of the so-called magnetic hair utilization type wig which mixes and attaches the hair of the own hair and the wig hair, the hair of the polyester fiber is not adapted to the flexible magnetic hair. Rise up and lint between your hairs lying down to an appropriate degree. The tendency of separation between such magnetic hairs and polyester hairs becomes remarkable as the humidity increases.

On the other hand, the artificial hair made of polyamide fiber has an appearance and physical properties close to those of the natural hair, compared to the artificial hair made of polyacrylic or polyester, and in particular, of the present applicant who removes unnatural luster by surface treatment. By the invention, an excellent wig is provided (see Patent Document 1). Among the polyamide fibers, aliphatic polyamides are particularly preferred as artificial hair because of their excellent processability. However, the fiber made of aliphatic polyamide has a lower flexural rigidity than natural hair, so even if it is planted in a wig base, it does not stand up well and lie on the side along the wig base. For this reason, artificial hair made from aliphatic polyamides lacks toughness and tends to fall in volume. As a result of the intensive research, the applicant has succeeded in making artificial hair exhibiting a behavior very similar to that of natural hair which changes according to the change of humidity by using an aliphatic polyamide resin and an aromatic polyamide resin as a super-duplex structure. Special Issue 2005-38415, February 15, 2005). By this technique, the flexural rigidity value like natural hair can be achieved in the hair of polyamide fiber.

As another technique for artificial hair, in order to be able to use a hair dryer or curling iron, the artificial hair made of polyester fiber and the artificial hair made of nylon fiber are bundled and mixed with each other to make the artificial hair bundle. It is a technique to draw a few strands from a hair bundle and plant it in a wig (patent document 2), or by mixing natural hair with artificial hair formed of polyester fiber to secure moisture retention and tones of the entire wig. And the technique (patent document 3) which makes gloss close to natural hair is also proposed.

Patent Document 4 discloses a brush hair material such as a toothbrush or a makeup brush that has a suitable hair loss by mixing and melt spinning a polyethylene terephthalate with polybutylene terephthalate. Patent Document 5 describes a vehicle interior material such as a car seat skin material or a door interior material of a vehicle for transportation, in order to obtain a soft touch, short fibers made of a polymer blended with polyethylene terephthalate and polybutylene terephthalate. It is open. Patent Document 6 discloses a false twisted yarn obtained by blending polyethylene terephthalate with polybutylene terephthalate in order to provide a soft and excellent stretch fabric. Patent Literature 7 discloses a nonwoven fabric made of a polymer obtained by mixing polyethylene terephthalate and polybutylene terephthalate in a predetermined mass ratio.

Patent Document 1: Japanese Patent Application Laid-Open No. 64-6114

Patent Document 2: Japanese Patent Application Laid-Open No. 9-324314

Patent Document 3: Utility Model Registration No. 3021160

Patent Document 4: Japanese Patent Application Laid-Open No. 2004-166966

Patent Document 5: Japanese Patent Application Laid-Open No. 2004-84119

Patent Document 6: Japanese Patent Application Laid-Open No. 2000-273727

Patent Document 7: Patent No. 3458924

[Non-Patent Document 1] Kawagoe Co., Journal of the Korean Society for Textile Machinery (Textile Engineering), 26, 10, pp. 721-728, 1973

Non-Patent Literature 2: KATO TECH Corporation KES-SH Single Hair Bending Tester Instruction Manual

DISCLOSURE OF INVENTION

Problems to be Solved by the Invention

As described above, the artificial hair used for the wig has been studied in various ways so as to get as close as possible to the feeling (appearance, feel, texture) of natural hair. In addition, the physical properties such as hygroscopicity, tensile strength, elastic modulus, or flexural rigidity are preferably required to have physical properties superior to that of natural hair, so as not to be inferior to that of natural hair. The artificial hair of the applicant's polyamide-based fibers having a super-core structure has a diameter of about 80 to 100 µm, which is about the same as that of natural hair, and can provide an extremely close feeling to natural hair. All. However, when artificial hair made of polyamide fiber is attached to a wig base, when time passes, artificial hairs have a characteristic of sticking together and focusing on a plurality of artificial hairs. Therefore, each time, the brush should be carefully brushed to release the bundled hair. Moreover, since artificial hair of a polyamide fiber has hygroscopicity similarly to natural hair, when humidity is high, a fiber will mutually stick together in a characteristic and will be in a bundle state. This tendency becomes more pronounced with higher humidity. For this reason, when polyamide artificial hair is focused by, for example, getting wet in the rain or by wrapping hair and absorbing humidity, even if a wig wearer tries to trim the hair style by unwinding the bundled hair with a hairbrush or a brush, artificial hair There is a problem that it is difficult to loosen one strand of hair, and it takes time to get the desired hairstyle. Such characteristics are the same as in the case of artificial hair in which the aliphatic and aromatic polyamide resin has a double core structure of the core, and it is difficult to suppress the focusing of the artificial hair of the polyamide fiber, and the higher the humidity, the more artificial It is difficult to prevent hair from sticking together and focusing in a bundle state or a stem state.

When the polyester fiber hairs and the nylon fiber hairs described in Patent Document 2 are mixed with each other and attached to the wig base, the binding of the nylon fibers can be prevented, but the nylon fibers have the same behavior as natural hair. While weaving on a wig base, artificial hairs of polyester stand up and do not mix well with natural hair or nylon fibers and have a separate appearance. This tendency becomes more pronounced when the moisture is high, and in the wet state, the nylon fibers are stretched and laid on the scalp in the same way as the natural hair by the hygroscopic power, but the polyester-based fibers have high bending rigidity and are inferior in hygroscopicity, As it is in a state of being raised upward, natural feeling does not appear and attachment of a wig is easily visually confirmed.

In view of the above problems, the present invention provides excellent curl retention and the same curl characteristics as human hair, without the natural feeling of natural hair and the physical properties of the hair, especially a part of the artificial hair planted in the wig base. And artificial hairs that give artificial feelings to the hair without focusing even under the influence of humidity, and furthermore, have the flexural rigidity that approximates natural hair and exhibit the same behavior as natural hair, An object of the present invention is to provide a method for manufacturing a wig and artificial hair using the same.

Means for solving the problem

As a result of intensive studies by the present inventors, the focused state of the polyamide artificial hair is easily converged due to the molecular structure of the polyamide artificial hair, or the molecular bonding force on the surface of the polyamide artificial hair, It is assumed that it is caused by van der Waals force, and various experiments have been conducted, and it is not a polyamide artificial hair alone, but it is mixed with other synthetic fibers, specifically, artificial hair including polyethylene terephthalate, and attached to the base of the wig. I have found that it can solve the problem. Furthermore, in order to make the polyamide artificial hair into the flexural rigidity similar to that of the natural hair, very excellent characteristics can be obtained by adjusting the fiber ratio to the dual structure of the sheath and the core and adjusting the super-contrast ratio, and the like of the polyethylene terephthalate artificial hair. In this case, the inventors obtained the knowledge that the diameter was controlled or obtained by melt spinning with other synthetic resins, and the present invention was completed.

In order to achieve the above object, the artificial hair of the present invention is made of a fiber containing polyethylene terephthalate, and has the same flexural rigidity as that of natural hair. Specifically, the artificial hair is made of fibers containing polyethylene terephthalate, and has a cross-sectional dimension of the same degree as that of natural hair, for example, a cross-sectional dimension perpendicular to the longitudinal direction of the fiber having an average diameter of 50 to 70 µm. By setting it as the range, it has the bending rigidity value of the same grade as natural hair.

The artificial hair is preferably a fiber containing polyethylene terephthalate and polybutylene terephthalate, and has the same flexural rigidity as that of natural hair. In this case, it is preferable to make the cross-sectional dimension perpendicular | vertical to the longitudinal direction of a fiber into the range of 50-100 micrometers in average diameter.

In each said structure, the bending rigidity value of a fiber becomes like this. Preferably it is the range of 6.5-7.8 * 10 <^-3> gf <2> gf / strand in 40% of humidity. On the surface of the fiber, micropores are preferably formed in the longitudinal direction.

According to the said structure, by making the cross-sectional dimension of the fiber which consists of polyethylene terephthalate about the same as natural hair, the artificial hair which has the bending rigidity value of the same grade as natural hair can be provided. In addition, the bending rigidity is naturally adjusted by the polyethylene terephthalate having high bending stiffness and the polybutylene terephthalate having low bending stiffness, so that the bending stiffness value that is the same as that of natural hair can be obtained. It can provide an artificial hair having. These artificial hairs can provide natural artificial hairs whose flexural stiffness approximates natural hairs, and in particular, the appearance, feel, texture, etc. are very close to natural hair. Since this artificial hair rises from the wig base, the natural hair exhibits the same behavior as the rise from the scalp. Therefore, it is difficult to visually confirm that the natural hair is attached to the wig. If micropores are formed on the surface of the artificial hair in the longitudinal direction, the irradiated light is diffusely reflected so that the gloss can be suppressed, and the gloss can be as high as that of natural hair.

In the artificial hair bundle of the present invention, the first artificial hair made of a polyester resin is dispersed in a second artificial hair made of a polyamide resin, mixed at a predetermined ratio to obtain a bundle state, and the polyester resin is made of polyethylene. It comprises terephthalate and is characterized in that the first artificial hair has the same cross-sectional dimension and flexural rigidity as that of natural hair.

In the first artificial hair, preferably, the polyester resin contains polyethylene terephthalate and polybutylene terephthalate and has a flexural rigidity of the same degree as that of natural hair. The cross-sectional dimension perpendicular | vertical to the longitudinal direction of this 1st artificial hair is 50-70 micrometers in average diameter. The second artificial hair preferably has a super / core structure composed of a core portion and a core covering the core portion, the core portion being made of polyamide resin, and the edge portion having a lower flexural rigidity than the core portion. It consists of a polyamide resin. The second artificial hair preferably has the same cross-sectional dimension and flexural rigidity as that of natural hair, and is in the range of 6.5-7.8 × 10 ⁻³ gf · cm 2 / strand at 40% humidity.

In the second artificial hair made of the polyamide resin, the first artificial hair made of the polyester resin is mixed appropriately and planted in the wig base in an appropriately dispersed state so that the second artificial hair itself can be bundled. It can be suppressed. In addition, since the first artificial hair is made of polyethylene terephthalate and polybutylene terephthalate, it has the same flexural rigidity as that of natural hair, compared to the case of only polyethylene terephthalate. Feelings like texture can provide natural artificial hair that is extremely close to natural hair.

The wig which concerns on the 1st structure of this invention contains a wig base and the artificial hair planted and installed in this wig base, Comprising: The agent which consists of 1st artificial hair which consists of polyester resin, and polyamide resin as artificial hair The artificial hair of 2 is used, and the polyester resin contains polyethylene terephthalate, and since the first artificial hair has the same cross-sectional dimension as that of the natural hair, it has the same flexural rigidity as that of the natural hair. It is done.

The wig which concerns on the 2nd structure of this invention contains the wig base and the artificial hair planted by this wig base, The artificial hair is the 1st artificial hair which consists of polyester resin, and the 2nd which consists of polyamide resin The artificial hair of the present invention is characterized in that the polyester resin comprises polyethylene terephthalate and polybutylene terephthalate, and the first artificial hair has the same flexural rigidity as that of natural hair. The second artificial hair preferably has a super / core structure composed of a core portion covering the core portion and the core portion, the core portion is made of a polyamide resin, and the core portion is made of a polyamide resin having a lower flexural rigidity than the core portion.

By using the artificial hair of the said structure for the wig of this invention, it can provide the wig which exhibits a natural feeling and is close to a natural hair. For this reason, since the 1st artificial hair which consists of polyester resins is planted and mixed with the 2nd artificial hair which becomes a polyamide-type fiber suitably, it is suppressed and the convergence property of a 2nd artificial hair is suppressed, and it is related to some moisture There is no failure of the set hairstyle without, and the wig wearer is not exposed to the wig mounting by the appearance as if it were magnetic hairs naturally grown from the hair.

In the first configuration according to the method for producing artificial hair, in order to obtain artificial hair having the same cross-sectional dimension and flexural rigidity as that of natural hair, a coloring raw material is added to the polyethylene terephthalate as a raw material, melted and discharged. And a third step of solidifying the discharged finishing melt, and a third step of stretching the solidified finishing member to a predetermined diameter. The second constitution is a first method of melting and discharging polyethylene terephthalate and polybutylene terephthalate as a raw material and a raw material for coloring at a predetermined mass ratio in order to obtain artificial hair having the same flexural rigidity as that of natural hair. And a second step of solidifying the discharged fusing melt, and a third step of stretching the solidified fusing member to a predetermined diameter. In the first and second configurations, in any of the second step and the third step, an alkali weight loss treatment may be performed to form fine pores on the surface of the artificial hair.

By the above configuration, it is possible to provide artificial hair having the same properties as natural hair even with a polyester resin, and furthermore, by mixing in artificial hair made of a polyamide resin, Restraining artificial hair can be provided.

Effects of the Invention

According to the present invention, artificial hair made of polyester resin having a feeling (appearance, feel, texture) and physical properties, particularly flexural rigidity, is close to natural hair. Since the artificial hair suppresses the binding of the artificial hair of the polyamide resin, the artificial hair of the polyamide resin is focused by mixing and using an appropriate number as the hair in the wig in which the artificial hair of the polyamide resin is installed. It does not become a bundle state and is scattered one by one. Therefore, the artificial hair can exhibit the same behavior as natural hair by leaving the artificial hair of the polyamide resin fluttering. Therefore, according to the wig of the present invention, since the hair planted in the base of the wig exhibits the same behavior as the hair of the wig wearer itself, the wig can be exposed to be exposed and can have excellent appearance.

Since artificial hair of conventional polyester resin has a higher flexural rigidity than natural hair, the curling rigidity value of artificial hair of polyamide resin which is planted in the same wig base is large and rises from wig base, and is installed, Artificial hair of polyester resin stands up and stands out, and wig attachment is easily visually confirmed and cannot have uniformity as a hairstyle. On the contrary, when the artificial hair of the polyester resin planted in the wig base has a lower flexural rigidity than that of the natural hair, the hair is laid down along the base of the wig, so that the artificial hair of the polyamide resin close to the flexural rigidity of the natural hair is raised. It stands out and the hair standing up and the hair lying down are mixed. As a result, the wig is easily visually confirmed and cannot have uniformity as a hairstyle. On the other hand, since the artificial hair of the polyester resin according to the present invention has the same bending rigidity as that of natural hair, the result is that the artificial hair of the polyamide resin planted in the wig base is raised to the same level as the artificial hair. It is difficult to check with the naked eye.

Best Mode for Carrying Out the Invention

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail based on drawing.

First, the artificial hair of this invention is demonstrated. The artificial hair of the present invention is made of polyester-based synthetic fibers and polyethylene terephthalate, and has the same flexural rigidity as that of natural hair. Polyethylene terephthalate is a polymer obtained by condensation polymerization of terephthalic acid and ethylene glycol substantially. In addition, it has bending rigidity of about cease like natural hair, most suitably, it is 6.5~7.8 × 10 ^-3 gf · ㎠ / strand at humidity 40%, 3.9~5.8 × 10 ^-3 gf at a humidity of 80%, Cm 2 / strand. When artificial hair of polyester fiber is dispersed in artificial hair made of polyamide fiber and planted in a wig base at a predetermined ratio, the bundleability of artificial hair made of polyamide fiber can be suppressed and Since artificial hair has the same bending rigidity as that of artificial hair and natural hair of polyamide fiber, such as polyamide artificial hair which is planted in natural hair and wig base grown from head of wig wearer It exhibits a behavior, for example, the same condition as that of the natural hair grown from the polyamide-based artificial hair attached to the wig base or the scalp of the wig wearer, and has a uniform appearance.

Hereinafter, each embodiment of the artificial hair by this invention is described.

The first aspect of the artificial hair according to the present invention is a fiber containing polyethylene terephthalate as a component and, if necessary, a coloring pigment, the fiber having a cross-sectional dimension equivalent to that of natural hair, and also natural hair. It has the same bending stiffness as

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows one form of the artificial hair which uses the polyethylene terephthalate of this invention as a component. As shown in FIG. 1, this artificial hair 1 may be a round oval or a cocoon flat in any direction. The cross-sectional dimension of the artificial hair 1 of the 1st aspect of this invention shall be 50-70 micrometers in average diameter. If the average diameter of the cross section of the artificial hair 1 is less than 50 µm, the flexural rigidity is lower than that of the natural hair, and thus it is not preferable because it is laid along the wig base when planted in the wig base. On the contrary, when the average diameter exceeds 70 micrometers, the bending rigidity value is too high than natural hair, and when it is planted and installed in a wig base, the rising from the wig base is large, which is undesirable.

The second aspect of the artificial hair according to the present invention is a polyester-based synthetic fiber, and by containing polyethylene terephthalate and polybutylene terephthalate in a predetermined ratio as a component of the polyester-based synthetic fiber, natural hair It has the same degree of bending stiffness. Polybutylene terephthalate is a polymer obtained by polycondensation of terephthalic acid and 1, 4- butanediol substantially. Similarly to FIG. 1, the artificial hair of this 2nd aspect may be an elliptical shape or a cocoon type | mold which is flat in any direction. It is preferable that the cross-sectional dimension is 50-100 micrometers. In this artificial hair, since it can be made into the diameter of 80-100 micrometers like natural hair, it is advantageous.

Next, the third aspect of artificial hair will be described.

2 is a cross-sectional view in the longitudinal direction showing the artificial hair 2 according to the third embodiment of the present invention. Unlike FIG. 1, the minute uneven part 2a is formed in the surface of this artificial hair 2. As shown in FIG. In the artificial hair 2 having such concave-convex portions 2a on the surface, diffuse reflection occurs, so that gloss hardly occurs on the surface of the artificial hair 2, so-called so-called glossiness removing effect may appear. It is preferable that the uneven part 2a is formed larger than about visible wavelengths so that light may be diffusely reflected. Such uneven parts 2a can be formed by, for example, spinning an artificial hair, immersing in a sodium hydroxide solution or the like to carry out alkali weight loss processing, and washing with water and drying. The uneven portion 2a may be formed by blasting. The component of the artificial hair 2 may be made of polyethylene terephthalate as in the first embodiment, or the polyethylene terephthalate and the polybutylene terephthalate may be mixed in a predetermined ratio as in the second embodiment. The artificial hair in each form mentioned above may contain the pigment which performs predetermined coloring as a component.

Generally, fibers made of polyethylene terephthalate have strong bending stiffness and are inadequate as materials for artificial hair. However, the artificial hairs (1) and (2) of the present invention have a cross section of the fiber slightly thinner or the same as that of natural hair. By having a dimension, a flexural rigidity value is close to that of natural hair, and the appearance, a texture, and a texture similar to a natural hair can be obtained. In addition, by using fibers made of polyethylene terephthalate and polybutylene terephthalate, the flexural rigidity is close to that of natural hair at a diameter substantially the same as that of natural hair, and the appearance, texture, and texture of natural hair can be obtained. have. The first and third artificial hairs (hereinafter referred to as &quot; first artificial hair &quot;) and the second artificial hairs made of polyamide fibers are mixed together and adhered to the wig base. Since one strand of artificial hair is scattered and flutters, the converging property of the second artificial hair can be suppressed. When trimmed to the desired hairstyle, it is possible to prevent unnaturalness caused by focusing and to give the wig a natural appearance.

Hereinafter, the artificial hair bundle 10 of the present invention will be described.

3 is a diagram schematically showing the artificial hair bundle 10 of the present invention. As shown in FIG. 3, the artificial hair bundle 10 includes a plurality of second artificial hairs each having a predetermined number of first artificial hairs 1 made of polyester-based synthetic fibers (eg, polyamide-based synthetic fibers). It is made to disperse | distribute to 5), to make a bundle state, and to apply these 1st and 2nd artificial hair randomly, disperse | distributing to a wig base suitably. The polyamide-based synthetic fibers as the second artificial hair 5 have the same cross-sectional dimensions and flexural rigidity as those of natural hair.

In the above-mentioned artificial hair bundle 10, it is preferable that the thermal contraction rate of the second artificial hair 5 is about the same as or less than that of the first artificial hair 1. As a result, even when the curling treatment by heat is applied to the artificial hair bundle 10, the first artificial hair 1 and the second artificial hair 5 shrink to the same extent, so that the generation of wave-like stages occurs. Can be prevented. The cause of the generation of the wavy stages is as follows. When the heat shrinkage rate of the second artificial hair 5 is higher than that of the first artificial hair 1, when the curling treatment by the heat is applied to the artificial hair bundle 10, the second artificial hair 5 The first artificial hair 1 adjacent to) intends to contract in the same manner as the second artificial hair 5. However, since the contraction of the second artificial hair 5 is larger than the contraction of the first artificial hair 1, the first artificial hair 1 having a small contraction is pulled out and kinks or sags ( slack) occurs, and predetermined clean curl cannot be imparted, and this appears as a wavy end.

FIG. 4: is a figure which shows typically the preferable structure of the 2nd artificial hair 5 shown in FIG. 3, (A) is a perspective view, (B) is perpendicular to the longitudinal direction of the 2nd artificial hair 5 It is a cross section. As shown, the second artificial hair 5 has a super / core structure having a superficial portion 5A and a superficial core 5B having a core portion 5B inside the superficial portion 5A, all of which are made of polyamide resin. . Although the super / core structure has shown the example arrange | positioned in substantially concentric shape in the case of illustration, both the core part 5B and the superpart 5A may be a heteromorphism other than substantially concentric shape, and it is the 2nd artificial hair The cross-sectional shape of (5) may be a circle, an ellipse, a cocoon shape, or the like.

As the polyamide resin serving as the material of the core portion 5B, a semi-aromatic polyamide resin having high strength and rigidity is preferable, and is composed of, for example, an alternating copolymer of hexamethylenediamine represented by the formula (1) and terephthalic acid. A polymer (for example, nylon 6T) or the polymer (for example, nylon MXD6) which combined the adipic acid and meta xylenediamine represented by Formula (2) by an amide bond, etc. are mentioned. The polymer material represented by the formula (2) is advantageous in that the hair set can be easily performed as compared with the polymer material represented by the formula (1). On the other hand, "nylon" is a registered trademark of DuPont. However, in the examples of the present invention, "nylon" is used as the polyamide resin, so the term is used in the following description.

As the polyamide resin serving as the material of the above-described 5A portion, a linear saturated aliphatic polyamide having a lower bending rigidity than that of the core portion 5B is preferable. As such a linear saturated aliphatic polyamide, a polymer consisting of a ring-opening polymer of caprolactam represented by the formula (3), for example, a polymer composed of an alternating copolymer of hexamethylenediamine and adipic acid represented by nylon 6 or (4), For example, nylon 66 can be mentioned.

Unnatural glossiness occurs when the surface of the initial portion 5A of the second artificial hair 5 is smooth. Therefore, in order to suppress such glossiness, a so-called glossiness removal treatment is preferably performed. FIG. 5: is sectional drawing of the longitudinal direction which shows typically the structure of the modification of the 2nd artificial hair 6. As shown in FIG. Fine uneven | corrugated part 5C is formed in the surface of the 5 A of ear parts of the 2nd artificial hair 6 so that a glossiness removal effect may express.

Here, 5 C of fine uneven | corrugated parts can give the fiber in the spinning | disconnection of the 2nd artificial hair 6 or after spinning by the blast process by micro powders, such as sand, ice, and dry ice. When forming during the spinning of the second artificial hair 6, spherical crystals may be formed on the outermost surface of the second artificial hair 6. The treatment may be a combination of spherical crystal formation and blast treatment using fine powders such as sand, ice, and dry ice. The uneven portion formed by spherical crystal formation and / or blasting treatment may be formed such that the uneven portion 5C is larger than the degree of the visible light wavelength so that light is diffusely reflected. The second artificial hairs 5 and 6 can also be colored according to the preference of the wearer. Such coloring may mix | blend a pigment and / or dye in the kneading | mixing of the polymer used as a raw material at the time of spinning, and may dye | stain after spinning. As described above, the second artificial hairs 5 and 6 use polyamide having high bending stiffness for the core 5B, and polyamide having lower bending stiffness than the core 5B for the primary 5A. By using a super / core structure, the stiffness changes depending on temperature and humidity, so that the artificial hair exhibits a behavior closer to that of natural hair.

The first artificial hairs 1 and 2 in the artificial hair bundle 10 have a good mixing ratio with the second artificial hairs 5 and 6 in the range of 10 to 60% by weight, 20-30 weight% is especially preferable. This is because the polyamide fibers do not focus in this preferred range. When the mixing ratio of 1st artificial hair (1), (2), ie, polyester fiber is less than 10 weight%, polyamide fiber is concentrated and it is unpreferable. Conversely, if the blending ratio of the polyester fibers (first artificial hair) exceeds 60% by weight, the polyamide fibers are not focused, but the polyester fibers (first artificial hair) are noticeable and are not preferable. . This is because, since the polyester fibers have poor hygroscopicity compared to the polyamide fibers, the artificial hair bundles 10 made of two kinds of fibers exhibit different behaviors due to changes in humidity due to the difference in hygroscopicity.

As described above, when polyester-based artificial hair is mixed with polyamide-based artificial hair, it becomes difficult to focus on the mixture of polyamide-based artificial hair and polyester-based artificial hairs having different chemical structures. It is assumed that it is due to the fact that it is easy to carry a positive charge, and that polyester artificial hair is easy to carry a negative charge.

The artificial hair bundle 10 is formed by mixing the first artificial hairs 1, 2 and the second artificial hairs 5, 6 in a desired weight ratio, thereby providing a second artificial hair 5. (6) does not focus, and the first artificial hairs (1), (2) and the second artificial hairs (5), (6) may have the same flexural rigidity as that of natural hair.

Next, the wig of this invention is demonstrated.

6 is a perspective view schematically showing the configuration of the wig 20 of the present invention. In the wig 20 using the artificial hairs 1 and 2 of the present invention, the wig base 11 includes the first artificial hairs 1 and 2 and the second artificial hair 5, and ( 6) is planted and installed at a predetermined ratio. As described above, the first artificial hairs 1 and 2 are made of polyester-based synthetic fibers, and have the same flexural rigidity as that of natural hair. The second artificial hairs 5 and 6 are made of polyamide-based synthetic fibers, and have the same cross-sectional dimensions and flexural rigidity as those of natural hair. As described above, the core 5B is preferably The polyamide resin having a high rigidity and the first portion 5A are made of a polyamide resin having a lower rigidity than the core portion 5B.

The mixing ratio of the first artificial hairs 1, 2 and the second artificial hairs 5, 6, which are planted and installed in the wig base 21, is the first artificial hair in any region. It is preferable that hair (1) and (2) are mixed about 20 +/- 5 weight%. It is because the 2nd artificial hairs 5 and 6 which become the polyamide-based fiber planted in the wig base 21 will not focus when it mixes in such a preferable range. If the mixing ratio of the first artificial hair is less than 20 ± 5% by weight, the polyamide-based fibers are concentrated and not preferable. On the contrary, when the mixing ratio of the polyester fiber (the first artificial hair) exceeds 20 ± 5% by weight, the polyamide fiber is not concentrated, but the polyester fiber (the first artificial hair) is noticeable and is preferable. Not.

Wig base 21 may be composed of a net base or an artificial skin base. In the case shown, the wig base 21 is composed of a net member, and the first artificial hair 1, 2, and the second artificial hair 5, 6 constitute a net member. It is planted in filament. The wig base 21 can be configured by combining a net type base and an artificial skin base, and the wig base 21 is not particularly limited as long as the wig base 21 is suited to the design and use of the wig.

The first artificial hairs 1, 2, and the second artificial hairs 5, 6 are preferably capable of suppressing specular glossiness of the surface and having a gloss that is close to natural hair. . The colors of the first and second artificial hairs can be appropriately selected according to the wearer's wishes, such as black, purple, and blond. Selecting artificial hair of a color that matches the magnetic hair around the user's bald area increases natural feeling. In the case of a dressing wig or a hair extension, the artificial hair of the present invention has a mesh shape different from that of the magnetic hair, or the artificial hair is spread from the proximal end to the proximal end, for example. The color tone may be changed or the color may be gradually changed to perform gradation.

7: (A) is a figure which shows typically the wig 20 of this invention, and (B) shows the wig 25 as a comparative example, respectively. As shown in Fig. 7A, in the wig 20 of the present invention, the first artificial hairs 1 and 2 have a second artificial hair 5 having the same bending rigidity as that of natural hair, Since it is comprised so that it may have the same bending rigidity value as (6), the 1st artificial hair 1, 2, and the 2nd artificial hair 5, 6 are the same, and the wig base 21 is similar. It is planted in a plant and cannot be divided into two. Furthermore, the excellent wig which the polyamide fiber which forms the 2nd artificial hair 5 and 6 does not focus can be provided. On the other hand, as shown in FIG. 7 (B), the polyethylene tere outside the range of 50 to 70 μm in average diameter in the wig base 21 together with the second artificial hairs 5 and 6. In the conventional wig 20 in which the artificial hair 3 made of phthalate is planted and installed, the artificial hair 3 has a flexural rigidity different from that of the second artificial hairs 5 and 6, so that the wig base ( It is not preferable because the appearance from 21) is large and shows a separate appearance from the second artificial hairs 5 and 6.

Next, the manufacturing method of the artificial hair of this invention is demonstrated. First, the apparatus system used for the manufacturing method of the artificial hair of this invention is demonstrated.

8 is a schematic diagram of an apparatus system for use in the manufacture of artificial hair of the present invention. As shown in FIG. 8, the manufacturing apparatus 30 melts and knead | mixes a raw material tank 31 with the pellet of polyethylene terephthalate resin used as a raw material, or the pellet of polyethylene terephthalate resin containing a coloring raw material. The melt extruder 32, the warm bath part 33 which solidifies the fusing melt discharged from the discharge port 32A of the melt kneaded in the melt extruder 32, and after that, each stage extends the stretching rollers 34, 36 and 38. And a winder 41 for winding the artificial hair 1 and a fine hole 2a on the surface of the yarn after the three-stage stretching heat treatment process consisting of the 40 and the dry heat baths 35, 37 and 39. It comprises an alkali reduction unit (not shown) for forming.

The melt extruder 32 discharges a heating device for melting pellets of polyethylene terephthalate resin as raw materials, pellets of polyethylene terephthalate resin including colored raw materials, a kneader to disperse and stir so as to be uniform, and melted liquid. A gear pump for feeding liquid to the sphere 32A is provided.

The discharge holes 32A of the discharge portion 32 are provided with a predetermined number of holes having a predetermined diameter, and the fibers coming out of the discharge holes 32A of the discharge portion 32 are sequentially heated as shown in FIG. 33), the first stretching roller 34, the first drying heat tank 35, the second stretching roller 36, the second drying heat bath 37, the third stretching roller 38, and the third drying heat bath 39 After passing through the 4th stretching roller 40, it winds around the winder 41, and performs an alkali weight loss process in an alkali weight loss part (not shown) after that. The 1st extending roller 34-the 4th extending roller 40 perform an extending | stretching process with respect to the solidified yarn member. First, the first stretching process is performed on the sand member by increasing the roller speed of the second stretching roller 36 with respect to the roller speed of the first stretching roller 34, and then the third stretching roller 38 By increasing the roller speed with respect to the roller speed of the second stretching roller 36, the second stretching treatment is performed on the sand member, and then the roller speed of the fourth stretching roller 40 is changed to the third stretching roller 38. By reducing the roller speed of), a relaxation stretching treatment is performed to relax the strain applied to the fiber and stabilize the dimensions. An antistatic oiling device (not shown) may be provided between the fourth stretching roller 40 and the winder 41.

9 is a schematic diagram of the alkali reduction unit 45. The alkali reduction part 45 suspends and rotates the fiber 100 so that a part of the fiber 100 may be immersed in the liquid storage part 46 which stores the process liquid containing alkaline aqueous solution, and this liquid storage part 46. It comprises a rotating cylinder portion 47 and a shower portion 48 for injecting the processing liquid to the fiber 100 disposed above the rotary cylinder portion 47 and suspended on the rotary cylinder portion 47. In the liquid storage unit 46, a treatment liquid containing an alkaline aqueous solution for etching polyester fibers and an accelerator for promoting hydrolysis is stored, and the fiber is immersed in the treatment liquid by immersing a part of the fiber 100. The surface of 100 is etched. The rotary cylinder portion 47 is configured by arranging three pairs of pipe portions in the direction of the rotation axis, and arranged in such a manner that each pair of pipe portions have a substantially triangular cross-sectional shape with each other. A plurality of injection ports 47a are provided so that the processing liquid introduced into the pipe portion can be injected in the rotational outward direction.

In the alkali reduction part 45, an etching process is performed on the extended and relaxed fibers 100. That is, by immersing a part of the fiber 100 in the processing liquid, the fiber is uniformly etched and the fiber diameter is reduced. In the direction indicated by the thick arrow in FIG. 9, the fiber 100 rotates in the direction indicated by the solid line in the drawing by the rotation of the rotary cylinder 47. At this time, the processing liquid injected from each injection port 47a of the rotary cylinder part 47 or the shower part 48 adheres to the outer peripheral surface of the fiber 100 caught by the rotary cylinder part 47. On the right side of the rotary cylinder 47, the moving direction of the fiber 100 (the direction of the arrow indicated by the solid line) and the moving direction (the direction of the arrow indicated by the dotted line) by the weight of the processing liquid coincide with each other. Thus, in other words, the etching treatment is performed in accordance with the flow of the processing liquid. On the other hand, on the left side of the rotating cylinder portion 47, since the direction of the movement of the fiber 100 and the direction of the processing liquid is reversed, it is etched against the direction of movement of the fiber. In this way, the treatment liquid attached to the surface of the fiber 100 flows vertically downward along the axial direction of the fiber, that is, in the longitudinal direction, by the weight of the treatment liquid, and the etching treatment is performed along the direction of this flow. Li is carried out. Therefore, the fiber 100 is thinned by the alkali reduction process, and micropores are formed in the surface of the fiber in the axial direction thereof.

The manufacturing method of the artificial hair by the apparatus system 30 shown in FIG. 8 is demonstrated. First, the manufacturing method of the artificial hair which becomes a polyester type synthetic fiber which uses a polyethylene terephthalate as a component and contains a coloring raw material is demonstrated.

In the manufacturing apparatus 30 shown in FIG. 8, the raw material tank 31 mixes the polyethylene terephthalate pellet and the coloring resin pellet containing a coloring pigment at the predetermined ratio based on a polyethylene terephthalate base. By changing the mixing ratio of the coloring resin pellets, the hair color of the artificial hair, which is the final product, can be changed. The mixing ratio of the colored resin pellets to the pellets of polyethylene terephthalate maximizes 40:60 by mass ratio of the pellets of polyethylene terephthalate: the colored resin pellets.

The pellet in the raw material tank 31 is sent to the melt extruder 32, the pellet is kneaded in the melt extruder 32, and the melt 31A is discharged from the discharge port 32A, and the finishing melt is heated by the warm bath part 33. Solidify. As for the temperature of the warm-bath part 33, 40 degreeC is preferable in terms of productivity. If the temperature of the warm bath part 33 is too low, after the molten resin is discharged, crystallization of the resin inside by quenching is performed with respect to the outside and the inside that touch the water for the first time of the fusing melt when contacting the warm bath part 33. Is not preferred because external crystallization does not proceed, resulting in a difference in molecular structure, which causes "waving of yarn". If the temperature of the warm bath part 33 is too high, crystallization of the filamentous melt will proceed excessively, the durability against stretching of the filamentous melt will be weakened, and there will be a tendency for trimming at the time of stretching, resulting in poor productivity.

The solidified sand member is subjected to the stretching process in the first step by the first stretching roller 34 and the second stretching roller 36, and to the second stretching roller 36 and the third stretching roller 38. Thereby, the extending | stretching process of a 2nd step is performed, and the relaxation process is performed by the 3rd extending roller 38 and the 4th extending roller 40. FIG. By a 1st and 2nd extending | stretching process, a total magnification is made 6 times as a draw ratio.

Subsequently, an alkali weight loss treatment is performed on the fibers subjected to the stretching treatment. Specifically, as shown in FIG. 9, the processing liquid which mixed the accelerator for promoting hydrolysis to alkaline solutions, such as aqueous sodium hydroxide solution, is stored in the liquid storage part 46, and the fiber caught by the rotating cylinder part 47 is carried out. A part of the 100 is immersed, and at the same time, the processing liquid is injected into the portion of the fiber 100 that is not immersed from the injection port or the shower 48 of the rotary cylinder 47. The treatment liquid attached to the surface of the fiber 100 flows vertically downward along the axial direction of the fiber, that is, in the longitudinal direction, by the weight of the treatment liquid, and an etching treatment is performed to follow the direction of this flow. Therefore, the fiber 100 is thinned by the alkali weight loss treatment, and micropores are formed on the surface of the fiber in the axial direction. At this time, the treatment liquid is preferably heated to a predetermined temperature in order to promote hydrolysis. Subsequently, after neutralizing the alkali adhering to the fiber, washing can be performed to obtain artificial hair.

Spinning conditions such as the diameter of the hole provided in the discharge port 32A or the temperature of the warm bath 33, the stretching conditions such as the speed of the first to fourth stretching rollers, the temperature of the first to third dry heat baths, and further, the alkali reduction conditions. By adjusting the content of the polyethylene-terephthalate and the colored pigment, the synthetic synthetic fiber having the same cross-sectional dimension and flexural rigidity as that of natural hair, thereby producing artificial hair having the same flexural rigidity as that of natural hair. You can get it. For example, by setting the spin take-up speed to 27.9 m / min and the final take-up speed to 155 m / min, artificial hair having a flexural rigidity value of 6.5 × 10 ⁻³ gf · cm 2 / strand after alkali reduction can be obtained.

Next, the manufacturing method of the artificial hair which uses a polyethylene terephthalate and a polybutylene terephthalate as a component, and contains a coloring pigment is demonstrated.

In the manufacturing apparatus 30 shown in FIG. 8, the raw material tank 31 uses the pellet of polyethylene terephthalate, the pellet of polybutylene terephthalate, and the coloring resin pellet containing the coloring pigment based on polyethylene terephthalate, It mixes in a predetermined ratio. The mixing ratio of the colored resin pellets to the total pellets of polyethylene terephthalate and polybutylene terephthalate is 40:60 by mass ratio of the total pellet: colored resin pellets of polyethylene terephthalate and polybutylene terephthalate. . It is preferable to make the temperature of a warm bath about 40 degreeC.

Next, the pellets in the raw material tank 31 are sent to the melt extruder 32 and the pellets are kneaded by the melt extruder 32 in the same manner as the method for producing artificial hair having only polyethylene terephthalate and colored pigment as components. ) Is discharged from the discharge port 32A, and the finishing melt is solidified by the warm bath section 33. The solidified sand member is subjected to the stretching treatment in the first stage, the stretching treatment in the second stage, and the relaxation treatment in the same manner as in the foregoing case, and the alkali weight loss treatment is performed. Subsequently, after neutralizing the alkali adhering to the fiber, washing can be performed to obtain artificial hair.

By adjusting the mixing ratio of the pellets of polyethylene terephthalate and the pellets of polybutylene terephthalate, artificial hair having the same flexural rigidity as that of natural hair is obtained. The mass ratio of polyethylene terephthalate and polybutylene terephthalate is in the range of 15:85 to 25:75, particularly 20:80. If the mass ratio is less than 15:85, the flexural rigidity value is high. On the contrary, if the mass ratio exceeds 25:75, the flexural rigidity value is low. If artificial hair outside the above range is used in the wig, the behavior of the artificial hair and the natural hair of the wig wearer is different, which is not preferable. Spinning conditions such as the diameter of the hole provided in the discharge port 32A or the temperature of the warm bath 33, the stretching conditions such as the speed of the first to fourth stretching rollers, the temperature of the first to third dry heat baths, and further the alkali reduction conditions By adjusting, the artificial hair which has the optimal bending rigidity value is obtained.

The manufacturing method of the 2nd artificial hairs 5 and 6 which comprise the artificial hair bundle of this invention is demonstrated.

FIG. 10 is a schematic view of an apparatus 50 used for manufacturing the second artificial hairs 5 and 6, and FIG. 11 is a schematic cross-sectional view of the discharge portion used for the manufacturing apparatus of FIG. As shown in FIG. 10, the manufacturing apparatus 50 is the 1st raw material tank 51 for polyamide resin used as 5 A of second parts, and the 2nd raw material for polyamide resin used as core part 5B. Melt kneaded by the tank 52, the melt extruders 51D and 52D which melt and knead the raw materials supplied from these raw material tanks 51 and 52, and the melt extruder 51D and 52D. The hot bath part 54 which solidifies the fusing melt which discharges 51A and 52A from the discharge port 53C of the discharge part 53, and forms an uneven part on the surface, and after that, each stage is an extending roller A blast machine for attaching the concave-convex portion 5C to the yarn surface through a three-step stretching heat treatment step consisting of (55), (57), (59), and dry heat baths (56), (58), (60) ( 63) and the winder 64 which winds the artificial hair gloss removed to the desired extent by the blast machine 63, and is comprised.

The melt extruders 51D and 52D include a heating device for melting the pellets of the polyamide resin, a kneader for dispersing and agitating so as to be uniform, and melting liquids 51A and 52A to the discharge part 53. Gear pumps 51B, 52B to feed the liquid are provided.

The fiber from the discharge port 53C of the discharge part 53 passes through a hot bath, elongation, and a dry heating mechanism as shown in the figure, to relieve tension applied to the antistatic oil ring device 61 and artificial hair to stabilize the dimensions. It is wound up by the winding machine 64 via the extending | stretching roller 62 and the blast 63 for surface treatment.

As shown in FIG. 11, the discharge part 53 has the double discharge port arrange | positioned concentrically, From the center circle part 53B, the semi-aromatic polyamide resin melt 52A, and the center circle part ( The linear saturated aliphatic polyamide resin melt 51A is discharged from the foreign exchange portion 53A surrounding 53B.

Next, the manufacturing method of the 2nd artificial hair 5 and 6 by the said manufacturing apparatus 50 is demonstrated. By using the manufacturing apparatus 50, in the melt extruders 51D and 52D, each polyamide resin is melted at an appropriate temperature and fed to the discharge part 53, and is half from the central circle part 53B of the discharge port. 52 A of aromatic polyamide resin melts, and 51 A of linear saturated aliphatic polyamide resin melts from the foreign exchange part 53A are discharged from the discharge port 53C, and it is the yarn of a super / core structure, and artificial hair 5, ( 6) can be manufactured.

Here, the ratio between the capacity | capacitance which sent 51 A of linear saturated aliphatic polyamide resin melts with the gear pump 51B, and the capacity which sent the semi-aromatic polyamide resin melt 52A with the gear pump 52B, In the present invention, it is referred to as a super / core capacity ratio. In order to approximate the flexural rigidity of the artificial hair 5 to the flexural rigidity of the natural hair, the ultra / simal weight ratio, which is the weight ratio of the initial part and the core part, is in a preferable range of 10/90 to 35/65. As for manufacturing conditions for obtaining the weight ratio of such an initial part and a core part, 1 / 2-1 / 7 becomes a preferable value as a super / core capacity ratio, and this range is a physical property value, such as the flexural rigidity value of artificial hair 5 and 6. Is preferred. When this ultra / core capacity ratio becomes larger than 1/2, ie, the ratio of the 5 A of sheaths becomes large, the effect which contributes to the increase of the bending rigidity value of the core 5B of artificial hair 5 and 6 becomes small. If the super / core capacity ratio is smaller than 1/7, that is, the ratio of the core portion 5B is large, the bending stiffness value becomes too large and does not approximate natural hair, which is not preferable.

The draw ratio at the time of spinning of the artificial hairs 5 and 6 can be 5 to 6 times. This draw ratio is about 2 times the draw ratio of the conventional artificial hair of nylon 6 alone. The 2nd artificial hairs 5 and 6 can set suitably the draw ratio at the time of spinning, the yarn diameter, the bending rigidity value, etc. corresponding to a desired design. The shape of the super / core of the artificial hairs 5 and 6 can be made into a substantially concentric shape by appropriately controlling the conditions at the time of spinning.

In the spinning for artificial hair, the yarn drawn out from the discharge port 53C is passed through the water of 80 ° C. or higher in the warm bath part 54 to form an uneven part 5C on the surface of the straight-chain saturated aliphatic polyamide resin of the initial part 5A. It is possible to generate and grow Chinese New Year, giving the appearance as natural hair, and can produce a gloss removal artificial hair 6 from which unnatural gloss has been removed.

The method of providing the fine concavo-convex portion 5C to the surface of the yarn is a method of blasting the yarn surface after spinning with fine particles such as sand, ice, or dry ice, in addition to the growth caused by the above-mentioned Chinese New Year, or the yarn surface. Any of the methods of chemical treatment or a method of appropriately combining them can be used.

In order to give the desired color and appearance as artificial hairs (5) and (6), pigments and / or dyes may be blended at the time of spinning, and the artificial hairs 5 and 6 themselves may be dyed after spinning is completed. .

As described above, since the second artificial hairs 5 and 6 have a super / core structure made of a polyamide resin having different flexural stiffness, the artificial hair of a conventional straight-chain saturated aliphatic polyamide resin alone The artificial hairs 5 and 6 with higher flexural rigidity than the hair can be produced with good reproducibility. When the minute uneven portions 5C are formed on the surface of the artificial hair 5, natural gloss close to that of natural hair can be imparted, thereby giving a natural appearance as hair.

1 is a diagram showing a form of the artificial hair of the present invention.

2 is a longitudinal cross-sectional view showing another embodiment of the artificial hair of the present invention.

3 is a diagram schematically showing an artificial hair bundle of the present invention.

FIG. 4: shows the preferable structure of the 2nd artificial hair shown in FIG. 3 typically, (A) is a perspective view, (B) is a vertical cross section of the longitudinal direction of a 2nd artificial hair.

FIG. 5: is sectional drawing of the longitudinal direction which showed the modification of 2nd artificial hair typically.

6 is a perspective view schematically showing the configuration of a wig of the present invention.

FIG. 7: (A) is the figure which showed typically the wig of this invention, (B) shows the wig as a comparative example, respectively.

8 is a schematic diagram of a series of devices used for producing artificial hair of the present invention.

It is a figure which shows typically an alkali weight loss part.

10 is a schematic diagram of a manufacturing apparatus used for producing a second artificial hair constituting the artificial hair bundle of the present invention.

11 is a schematic cross-sectional view of the discharge portion used in the manufacturing apparatus of FIG. 10.

FIG. 12 is a diagram showing a scanning electron microscope image of artificial hair prepared in Example 1. FIG.

FIG. 13 is a diagram showing the relationship between the flexural rigidity values with respect to the cross-sectional diameters of artificial hairs of the artificial hairs prepared in Examples 1 to 5 and Comparative Examples 1 to 3. FIG.

Fig. 14 is a diagram showing the bending stiffness value with respect to the mixing ratio with respect to the mass of polybutylene terephthalate.

Fig. 15 is a diagram showing the flexural rigidity values before and after the alkali weight loss treatment when the mixing ratio of polybutylene terephthalate is 20% or 60%.

FIG. 16 is a diagram showing the heat shrinkage rate with respect to the flexural rigidity of each artificial hair. FIG.

※ Explanation of code

1, 2: first artificial hair

2a: micropores

5, 6: second artificial hair

5A: Beginner

5B: Deep

5C: irregularities

10: bundle of artificial hair

20: wig

21: wig base

30, 50: manufacturing apparatus

31, 51, 52: raw material tank

31A, 51A, 52A: Melt

32, 51D, 52D: Melt Extruder

32A, 53C: discharge port

33, 54: warmth

34, 36, 38, 40, 55, 57, 59, 62: stretching roller

35, 37, 39, 56, 58, 60: dry heat

41, 64: winder

45: Alkali weight loss part

46: liquid storage

47: rotating tube

47a: nozzle

48: shower

51B, 52B: Gear Pump

53: discharge part

53A: Ministry of Foreign Affairs

53B: Central circle

61: anti-static oiling device

63: blast

100: fiber

Example 1

Next, the Example of this invention is described in detail.

Using the spinning machine 30 shown in Fig. 8, artificial hair having polyethylene terephthalate as a component was produced. As raw materials for artificial hair, pellets of polyethylene terephthalate (manufactured by Toyo Co., Ltd., density 1.40 g / cm 3, melting point of 255 ° C.) and pigment weights of black, yellow, orange, and red were respectively added to the polyethylene terephthalate resin base. Coloring resin pellets of 6%, 6%, 5% and 5% were used.

In spinning conditions, the melting temperature of the pellets was set to 270 ° C at the discharge temperature from the discharge port, and the discharge port was prepared with a cap including 15 holes having a diameter of 0.7 mm. The temperature of the warm bath 33 was 40 degreeC.

About extending | stretching conditions, the speed | rate of each roller of the 1st extending rollers 34 to the 4th extending roller 40 was adjusted, and the cross-sectional average diameter of the artificial hair after alkali reduction process was set to 65 micrometers. That is, the roller speed of the second stretching roller 36 is 4.6 times the roller speed of the first stretching roller 34, and the roller speed of the third stretching roller 38 is the roller speed of the second stretching roller 36. The roller speed of the fourth stretching roller 40 was 0.93 times the roller speed of the third stretching roller 38. Moreover, the temperature of the 1st dry heat tank 35 is 130 degreeC as a 1st extending | stretching temperature, and the temperature of the 2nd dry heat bath 37 is 180 degreeC and a relaxation extending | stretching temperature of the 3rd dry heat tank 39 as a 2nd extending | stretching temperature. The temperature was 180 degreeC.

As the conditions of the alkali weight loss treatment, an aqueous solution of sodium hydroxide having a concentration of 5% by weight as an aqueous alkali solution was added to a concentration of 0.5% by weight of kaziosol (manufactured by Komatsu Co., Ltd.) as a hydrolysis accelerator. Bath ratio was mass ratio of the to-be-processed object: treatment liquid = 1: 30, treatment temperature was about 100 degreeC, and processing time was 60 minutes, and the alkali reduction ratio was 10 to 20%.

Table 1 is a table showing the physical property values of artificial hairs with or without alkaline weight loss treatment.

Alkali weight loss treatment Yarn diameter (㎛) Strength (kgf / mm2) Shinto (%) I'm 75.1 84.7 19.6 after 66.1 63.4 12.2

As can be seen from Table 1, the diameter of the artificial hair was reduced from 75.1 µm to 66.1 µm by performing an alkali weight loss treatment. The strength decreased from 84.7 kgf / mm 2 to 63.4 kg f / mm 2. Elongation decreased from 19.6% to 12.2%.

12 shows the scanning electron micrograph of the artificial hair manufactured in Example 1. FIG. The electron's acceleration voltage is 15kV and the magnification is 800 times. As can be seen from FIG. 12, it was confirmed that fine holes having a longitudinal length were formed on the surface of the artificial hair in a direction perpendicular to the longitudinal direction, that is, in the axial direction of the fiber. The effect of gloss removal can be obtained by such a fine hole. Moreover, the cross-sectional dimension of artificial hair was confirmed about 65 micrometers in average diameter.

Example 2

The stretching conditions were changed, and in the same manner as in Example 1, artificial hair having a cross-sectional dimension of 50 µm in average diameter was produced.

Example 3

The stretching conditions were changed, and in the same manner as in Example 1, artificial hair having a cross-sectional dimension of 55 µm in average diameter was produced.

Example 4

The stretching conditions were changed, and in the same manner as in Example 1, artificial hair having a cross-sectional dimension of 60 µm in average diameter was produced.

Example 5

The stretching conditions were changed, and in the same manner as in Example 1, artificial hair having a cross-sectional dimension of 70 µm in average diameter was produced.

Next, Comparative Examples 1-3 with respect to Examples 1-5 are shown.

(Comparative Example 1)

The stretching conditions were changed, and in the same manner as in Example 1, artificial hair having a cross-sectional dimension of 45 µm in average diameter was produced.

(Comparative Example 2)

The stretching conditions were changed, and in the same manner as in Example 1, artificial hair having a cross-sectional dimension of 75 µm in average diameter was produced.

(Comparative Example 3)

The stretching conditions were changed, and in the same manner as in Example 1, artificial hair having a cross-sectional dimension of 80 µm in average diameter was produced.

The result of the bending rigidity value of the artificial hair manufactured by Examples 1-5 and Comparative Examples 1-3 is shown. The measurement of the bending rigidity value was performed in the environment of the temperature of 22 degreeC, and 40% of humidity. The measurement of the bending stiffness of the fiber is widely known for its fabric-based metric method and its principle. Using an improved single hair bending tester (model KES-FB2-SH, manufactured by Katotech Co., Ltd.), Flexural stiffness was measured. In the measuring method of the present invention, the artificial hair of the comparative example, and the natural hair, which is a sample, in any case, each 1 cm strand of the whole hair is bent at a constant curvature at a constant curvature at a constant speed, and the resulting minute One bending moment was detected and the relationship between the bending moment and curvature was measured. From this, the bending stiffness value was determined by the bending moment / curvature change. Representative measurement conditions are shown below.

(Measuring conditions)

Chuck distance: 1cm

Torque detector: Torsion detection method of torsion wire (steel wire)

Torque sensitivity: 1.0gfcm (at full scale 1OV)

Curvature: ± 2.5cm ^-1

Flexural Displacement Speed: 0.5cm ^-1 / sec

Measuring cycles: 1 round trip

Here, the chuck is a mechanism for fitting the hairs of the 1 cm.

Table 2 is a table | surface which shows the measurement result of the bending rigidity value of the artificial hair manufactured by Examples 1-5 and Comparative Examples 1-3. FIG. 13 is a graph showing the relationship between flexural stiffness values with respect to the cross-sectional diameter of artificial hairs for artificial hairs prepared in Examples 1 to 5 and Comparative Examples 1 to 3. FIG. The vertical axis of the figure represents the flexural rigidity value (gf · cm 2 / strand), and the horizontal axis is the cross-sectional average diameter (μm) of artificial hair.

Cross section average diameter (㎛) Flexural Rigidity 10 ^-3
(gfcm 2 / strand) Example 1 65 7.44 Example 2 50 6.7 Example 3 55 6.86 Example 4 60 7.12 Example 5 70 7.67 Comparative Example 1 45 6.37 Comparative Example 2 75 8.06 Comparative Example 3 80 8.35

As can be seen from Table 2 and FIG. 13, the flexural rigidity value linearly increased in the artificial hair mainly composed of polyethylene terephthalate as the cross-sectional dimension increased. In other words, as the average diameter increases to 45 µm, 50 µm, 55 µm, 60 µm, 65 µm, 70 µm, 75 µm, 80 µm, the flexural stiffness value is 6.37 × 10 ⁻³ gf · cm 2 / strand, respectively. , 6.70 × 10 ⁻³ gf · cm 2 / strand, 6.86 × 10 ^-3 gf · cm 2 / strand, 7.12 × 10 ^-3 gf · cm 2 / strand, 7.44 × 10 ^-3 gf · cm 2 / strand, 7.67 × 10 ^-3 gf · cm 2 / strand, 8.06 × 10 ⁻³ gf · cm 2 / strand, 8.35 × 10 ⁻³ gf · cm 2 / strand. Since the flexural stiffness of natural hair is also large, individual hairs are collected from 25 males and 38 females of each age group from 20 to 50 generations, and the flexural stiffness of the experimental data of 80 µm in diameter is measured under the same measurement environment. That is, it performed in the environment of the temperature of 22 degreeC, and 40% of humidity. The maximum value was 7.4 × 10 ⁻³ gf · cm 2 / strand, the minimum value was 6.6 × 10 ⁻³ gf · cm 2 / strand, and the average value thereof was 7.1 × 10 ⁻³ gf · cm 2 / strand. From this result, if it is the range of about 6.5-7.8 * 10 <^-3> gf * cm <2> / strand in the environment of the temperature of 22 degreeC, and 40% of humidity, it is about the same as that of natural hair. Based on these results, the artificial hairs prepared in Examples 1 to 5 have the same bending stiffness values as that of natural hairs, but for the artificial hairs prepared in Comparative Examples 1 to 3, the flexural rigidity values of natural hairs It was confirmed that out of range. As mentioned above, it was confirmed that 50-70 micrometers should be sufficient in the artificial hair which consists of polyethylene terephthalate as a component in order to possess the flexural rigidity value similar to natural hair. As for the artificial hair manufactured by Examples 2-5 and Comparative Examples 1-3, it was confirmed with a scanning electron microscope that all micropores were formed like Example 1.

Example 6

The polyester artificial hair 2 was manufactured using the manufacturing apparatus 30 shown in FIG. The raw materials of artificial hair are pellets of polyethylene terephthalate (manufactured by Toyo Co., Ltd., density 1.4Og / cm 3, melting point of 255 ° C), and pellets of polybutylene terephthalate (manufactured by Mitsubishi Engineering Plastics Co., Ltd., density 1.31 g / Cm 3, melting point of 224 ° C.), and a colored resin pellet having a weight ratio of 6: 6: 5: 5 of black, yellow, orange, and red pigments by weight in the polyethylene terephthalate resin base. The mixing ratio of the pellet of polybutylene terephthalate to the pellet of polyethylene terephthalate was changed to 0 to 75% by mass ratio, and seven types of artificial hair were manufactured. The spinning conditions, the stretching conditions, and the conditions of the alkaline weight loss treatment are the same as in Example 1.

Table 3 is a bending stiffness value of the artificial hair prepared in Example 4, and shows the values before and after the alkali weight loss treatment using the polybutylene terephthalate mixing ratio as a parameter. FIG. 14 is a graph of Table 3, and shows flexural stiffness values with respect to the mixing ratio with respect to the mass of polybutylene terephthalate. FIG. The vertical axis represents the flexural rigidity value (gf · cm 2 / strand), and the horizontal axis represents the mixing ratio PBT / (PET + PBT) (%) of the polybutylene terephthalate relative to the whole pellet with respect to the mass. In the plot, ◆ indicates a value before alkali loss treatment and ■ indicates a value after alkali loss treatment. The measurement conditions were 22% in temperature and 40% in humidity.

PBT mixing ratio (%) Flexural rigidity × 10 ^-3 (gfcm 2 / strand) Before Alkali Weight Loss Treatment After alkali weight loss treatment 0 19.79 11.66 10 18.07 9.70 20 16.35 8.32 30 14.64 7.68 50 11.10 6.40 60 9.88 5.75 75 6.79 4.78

As can be seen from Table 3 and Fig. 14, when the ratio of polybutylene terephthalate to the component of artificial hair was increased, the flexural rigidity value decreased before and after the loss of alkali. Before the alkali weight loss treatment, the flexural rigidity was about 1.6 × 10 ⁻² gf · cm 2 / strand at 20% of the mixing ratio, but forging to about 6.7 × 10 ^-3 gf · cm 2 / strand as the mixing ratio was increased to 75%. (Iii) decreased. After the alkaline weight loss treatment, the flexural stiffness was about 1.2 × 10 ⁻² gf · cm 2 / strand at 0% mixing ratio, but forging to about 8.3 × 10 ^-3 gf · cm 2 / strand as the mixing ratio was increased to 20%. At 60%, the mixing ratio was about 5.7 × 10 ⁻³ gf · cm 2 / strand.

The cross-sectional diameters of the seven kinds of artificial hairs having different mixing ratios of polybutylene terephthalate were 81.3 µm on average before the alkali weight loss treatment and 71.1 µm on average after the alkali weight loss treatment.

From the above results, by increasing the mixing ratio of polybutylene terephthalate, the flexural rigidity of artificial hair can be reduced, and the flexural rigidity similar to that of natural hair (6.5-7.8 × 10 ^-3 gf · cm 2 / strand) It is possible to obtain artificial hair having. For example, when the alkali weight loss treatment is not performed, the mixing ratio of polybutylene terephthalate is about 70 to 80%, and when the alkali weight loss treatment is performed, the mixing ratio of polybutylene terephthalate is about 20 to 60%. Goodness was confirmed.

FIG. 15 shows the bending stiffness values before and after the alkali weight loss treatment when the mixing ratio of polybutylene terephthalate is 20% or 60%. The vertical axis represents the bending stiffness value (gf · cm 2 / strand), and the horizontal axis represents the mixing ratio of polybutylene terephthalate. As can be seen from FIG. 15, the bending stiffness was about 1.6 × 10 ⁻² gf · cm 2 / strand at 20% of the mixing stiffness, but up to about 8.3 × 10 ⁻³ gf · cm 2 / strand at 20% mixing ratio. Decreased. At 60%, the mixing ratio was about 9.8 × 10 ⁻³ gf · cm 2 / strand but decreased to about 5.7 × 10 ⁻³ gf · cm 2 / strand. The cross-sectional diameters of the artificial hairs having a mixing ratio of polybutylene terephthalate of 20% and 60% were, on average, 80.4 µm before the alkali weight loss treatment, and 71.1 µm on average after the alkali weight loss treatment.

As mentioned above, in order to reduce the cross-sectional diameter of artificial hair and to reduce the bending rigidity value similar to that of natural hair, it confirmed that the alkali weight loss process has produced the artificial hair which consists of polyester type synthetic resins, and is effective.

Example 7

In the same manner as in Example 1, an alkali weight loss treatment was performed to heat-treat artificial hair made of polyester fiber having a flexural rigidity of about 6.5 × 10 ⁻³ gf · cm 2 / strand and a diameter of about 66 μm. The heat treatment was carried out by simulating curling treatment and held for 2 hours in an environment of 180 ° C. with artificial hair wound on a pipe having a diameter of 30 mm. It was 0.77% when the shrinkage rate of the artificial hair after heat processing was measured.

Example 8

In the same manner as in Example 1, but unlike Example 7, with respect to artificial hair made of polyester fibers having a bending stiffness of about 1.2 × 10 ⁻² gf · cm 2 / strand and a diameter of about 75 μm, without performing an alkali reduction treatment, The same heat treatment as in Example 7 was performed. It was 1.55% when the shrinkage rate of the heat treated artificial hair was measured.

Comparing Example 7 and 8, it turns out that the heat shrink rate by heat processing is halved by performing an alkali weight loss process.

Example 9

Subsequently, as a similar experiment in which the second artificial hair of the artificial hair bundle is subjected to heat treatment in advance and mixed with the first artificial hair to perform curling treatment, the influence of the presence or absence of pretreatment in the second artificial hair is confirmed. Was

The first heat treatment was performed on artificial hair having a flexural stiffness of 3.9-7.8 × 10 ⁻³ gf · cm 2 / strand with a super / core structure, followed by a second heat treatment. The core of the artificial hair is formed of nylon MXD6 (manufactured by Mitsubishi Gas Chemical Co., Ltd., product name MX nylon) as a polyamide resin, and the second portion is nylon 6 (NY6 / 66) including a copolymer of nylon 6 and nylon 66 (NY6 / 66) and a coloring material. ) The first heat treatment corresponds to a pretreatment, which was maintained for 30 minutes in an environment of 160 ° C. in a state in which artificial hair was stretched without being sensed by a pipe. The second heat treatment was a curling treatment corresponding to the present treatment, and was maintained for 2 hours in an environment of 180 ° C. with artificial hair wrapped around a 30 mm diameter pipe in the same manner as the heat treatments of Examples 3 and 4.

(Comparative Example 4)

The comparative example 4 with respect to Example 9 is shown. In Comparative Example 4, the second artificial heat treatment was performed on the artificial hairs as in Example 9 without performing the first heat treatment.

The result of Example 9 and the comparative example 4 is demonstrated. Table 4 is a table showing the results of Example 9 and Comparative Example 4, showing the heat shrinkage rate in each artificial hair, the value after the first heat treatment and the first and second heat treatment as a result of Example 9 The value after and the value after performing only 2nd heat processing as a result of the comparative example 4 are shown. Fig. 16 is a graph of Table 4 and shows the heat shrinkage rate for the flexural rigidity of each artificial hair. The vertical axis represents thermal contraction rate (%), and the horizontal axis represents flexural rigidity value (gf · cm 2 / strand). On the other hand, plot ◆ shows the bending stiffness value after 1st heat processing, plot ■ shows the bending stiffness value after 1st and 2nd heat processing, and plot ▲ shows the bending after performing only 2nd heat processing as a result of the comparative example 4 Stiffness value is shown.

Flexural Rigidity × 10 ^-3
(gfcm 2 / strand) Heat shrinkage (%) Example 9 Comparative Example 4 After the first heat treatment After the second heat treatment Only the second heat treatment 3.90 3.11 0.17 1.12 5.20 3.54 0.53 1.03 6.50 3.63 0.08 1.12 7.80 4.58 0.18 1.38

As is apparent from Table 4 and FIG. 16, even when the first heat treatment is performed, only the second heat treatment is performed, or both heat treatments are performed, the artificial hair is thermally contracted. As a result of Example 9, in other words, the larger the flexural rigidity value, the larger the heat shrinkage rate due to the first heat treatment, and the flexural rigidity value was about 3% in artificial hair of about 3.9 × 10 ⁻³ gf · cm 2 / strand, but the flexural rigidity value was It was about 4.6% for artificial hair of about 7.8 × 10 ⁻³ gf · cm 2 / strand. Moreover, the thermal contraction rate after the 1st and 2nd heat processing was less than 1%, and was 0.53 to 0.08% of range, regardless of the value of the bending rigidity value. On the other hand, as a result of Comparative Example 4, in other words, when only the second heat treatment was performed, the heat shrinkage rate was about 1 to 1.4% without depending on the bending stiffness value.

Compare Example 7 and Example 9 and Comparative Example 4. According to the result of Example 7, the heat shrinkage rate of the polyester artificial hair as the first artificial hair is 0.77%, and according to the result of Comparative Example 4, the heat shrinkage rate of the polyamide artificial hair as the second artificial hair is 1%. As a result, the second artificial hair is greatly reduced than the first artificial hair. Therefore, when the polyester artificial hair used in Example 7 is mixed with the polyamide artificial hair used in Comparative Example 4, the polyester artificial hair adjacent to the polyamide artificial hair is the same as the polyamide artificial hair. I want to shrink. However, when the polyamide artificial hair is mixed with polyester artificial hair without pretreatment, the present treatment causes polyester artificial hair with smaller shrinkage than polyamide artificial hair to shrink like polyamide artificial hair. Can not. As a result, a wave step occurs in the artificial hair bundle, which is not preferable.

On the other hand, according to the result of Example 9, the thermal contraction rate of the polyamide artificial hair as the second artificial hair is 0.5% or less, and according to the result of Example 7, the heat of the polyester artificial hair as the first artificial hair The shrinkage rate is 0.77%, and the difference in thermal shrinkage between them is small. Therefore, by pretreating and thermally contracting the polyamide artificial hair as the second artificial hair in advance, even if the curling treatment is performed by mixing the polyester artificial hair which is the first artificial hair, Since the second artificial hair shrinks to the same extent, there is no wave step.

In view of the foregoing, when the artificial hair bundle of the present invention is constituted, the artificial hair is obtained by performing heat treatment on the polyamide fiber as the second artificial hair in advance so as to have a heat shrinkage at the same level or lower than that of the first artificial hair. When performing a curling treatment on the bundles, it is possible to prevent the first artificial hairs from generating wavy ends.

As described above, according to the present invention, by melt spinning with polyethylene terephthalate as a main component, the stretching treatment and the alkali loss treatment are carried out so as to have a cross-sectional dimension equivalent to that of natural hair, and furthermore, the same dimensions as that of natural hair. And artificial hair by melting and spinning polyethylene terephthalate and polybutylene terephthalate in a predetermined mass ratio to have flexural rigidity, thereby providing artificial hair having a feeling like natural hair. The artificial hair made of these polyester fibers can not be focused on itself, can suppress the focusing of artificial hair made of polyamide fibers, and can be made to the same degree as the flexural rigidity of natural hair. Furthermore, by mixing artificial hair made of polyester fiber as the first artificial hair and mixing in a predetermined ratio in the second artificial hair which is made of polyamide fiber and has the same size and flexural rigidity as that of natural hair, The focusing property of the second artificial hair can be suppressed. Therefore, in a wig in which these artificial hairs are planted in a wig base, when the wig wearer arranges a desired hairstyle, the second artificial hair is not focused, and the first artificial hair and the second artificial hair are not focused. Since the flexural rigidity of can be approximated to natural hair, it can be behaved similarly to natural hair, and can make it feel natural.

The best mode for implementing this invention demonstrated above can be variously changed within the range of invention as described in the claim suitably.

Claims (19)

delete delete delete delete delete delete delete The first artificial hair made of polyester resin is dispersed in the second artificial hair made of polyamide resin, mixed at a predetermined ratio, and made into a bundle state, The polyester resin comprises polyethylene terephthalate, the second artificial hair has a super / core structure comprising a core and a core covering the core, wherein the core is made of a semi-aromatic polyamide resin, and the super It consists of a straight chain saturated aliphatic polyamide resin, characterized in that the super / seam weight ratio of the core portion and the core portion is 10/90 to 35/65, artificial hair bundle. The first artificial hair made of polyester resin is dispersed in the second artificial hair made of polyamide resin, mixed at a predetermined ratio, and made into a bundle state, The polyester resin comprises polyethylene terephthalate and polybutylene terephthalate, the second artificial hair has a super / core structure consisting of a core portion and a core portion covering the core portion, wherein the core portion is a semi-aromatic polyamide resin. And the ultra-part is made of a linear saturated aliphatic polyamide resin, characterized in that the initial / core weight ratio of the initial part and the core part is 10/90 to 35/65, artificial hair bundle. 10. The method according to claim 8 or 9, Artificial hair bundle, characterized in that the semi-aromatic polyamide resin is either nylon 6T or nylon MXD6. 10. The method according to claim 8 or 9, And said second artificial hair has the same cross-sectional dimensions and flexural rigidity as natural hair. 10. The method according to claim 8 or 9, And said first artificial hair and said second artificial hair have flexural stiffness in the range of 6.5-7.8 × 10 ⁻³ gf · cm 2 / strand under 40% humidity. 10. The method according to claim 8 or 9, The cross-sectional dimension perpendicular | vertical to the longitudinal direction of a said 1st artificial hair is the range of 50-70000 micrometers in average diameter, The artificial hair bundle characterized by the above-mentioned. A wig comprising a wig base and an artificial hair planted on the wig base, using the first artificial hair made of polyester resin and the second artificial hair made of polyamide resin as the artificial hair, The polyester resin comprises polyethylene terephthalate, The second artificial hair has a super / core structure consisting of a core and a core covering the core, wherein the core is made of a semi-aromatic polyamide resin, and the ultra-part is made of a straight chain saturated aliphatic polyamide resin. And the core / core weight ratio of the core is 10/90 to 35/65, A wig, wherein said first artificial hair and said second artificial hair have flexural rigidity values equal to that of natural hair. A wig comprising a wig base and an artificial hair planted on the wig base, using the first artificial hair made of polyester resin and the second artificial hair made of polyamide resin as the artificial hair, The polyester resin comprises polyethylene terephthalate and polybutylene terephthalate, The second artificial hair has a super / core structure consisting of a core and a core covering the core, wherein the core is made of a semi-aromatic polyamide resin, and the hyperpart is made of a straight chain saturated aliphatic polyamide resin, A wig, wherein said first artificial hair and said second artificial hair have flexural rigidity values equal to that of natural hair. The method according to claim 14 or 15, Wig, characterized in that the semi-aromatic polyamide resin is either nylon 6T or nylon MXD6. The method according to claim 14 or 15, Wig, characterized in that the linear saturated aliphatic polyamide resin is either nylon 6 or nylon 66. 10. The method according to claim 8 or 9, Said straight-chain saturated aliphatic polyamide resin is any one of nylon 6 or nylon 66, The artificial hair bundle characterized by the above-mentioned. delete

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