KR101989959B1

KR101989959B1 - Artificial hair and wig comprising same

Info

Publication number: KR101989959B1
Application number: KR1020157008135A
Authority: KR
Inventors: 마사히로 쇼다; 토시하루 야시로
Original assignee: 후지 케미칼 가부시키가이샤
Priority date: 2012-08-31
Filing date: 2012-08-31
Publication date: 2019-06-17
Also published as: JPWO2014033935A1; JP5978306B2; KR20150044965A; WO2014033935A1; CN104602557B; CN104602557A

Abstract

An object of the present invention is to provide artificial hair having a curling property and a curling property equivalent to human hair, excellent in curling property, and having styling properties and feel close to human hair, and a wig using the artificial hair. The artificial hair is a core-sheath type having polybutylene terephthalate resin or polytrimethylene terephthalate resin as a core component and polyethylene terephthalate resin as a supercritical component, and the deep part Fa and the superfine part Fb are almost concentric And a polyester monofilament (F) to be formed.

Description

ARTIFICIAL HAIR AND WIG COMPRISING SAME [0002]

More particularly, the present invention relates to an artificial hair comprising a polyester monofilament having a core-sheath structure and a wig using the artificial hair.

Conventionally, natural hair, particularly human hair close to the hair, has been used as hair for wigs. However, recently, human hair has been used artificial hair made of synthetic fibers because of difficulty in procurement, difficulty in shine, difficulty in setting when wet, and easy tangling of hair.

Examples of the material of the artificial hair include acrylic (mode acrylic or polyvinyl chloride), polyamide (nylon 6 or nylon 66), polyester (polyethylene terephthalate, polybutylene terephthalate or polytrimethylene terephthalate) Of monofilaments.

Artificial hair made of the above-mentioned material has both advantages and disadvantages. However, artificial hair made of polyester, especially polyethylene terephthalate resin (PET resin) has high heat resistance and can easily form curl by curling iron or the like (Hereinafter, referred to as " curling property "), which has curl even when subjected to high temperature and high humidity conditions such as bathing and hair winding, and the like.

On the other hand, artificial hair made of a PET resin is rigid as compared with human hair, and has a smooth surface because of its high gloss. The hair tends to feel uncomfortable, and the tip of the hair tends to be crimped over time , "Crimpability (crimpability)") and, once wrinkles are formed, they are very laborious to modify.

As a result, various techniques have been proposed for improving the gloss by forming irregularities on the surface of the fiber to eliminate glare. For example, Japanese Patent Publication No. 3074862 discloses a polyester fiber for artificial hair wherein a polyester fiber including fine particles such as silica is treated with an alkaline aqueous solution to form irregularities on the surface, and a manufacturing method thereof.

In addition, artificial hair made of polybutylene terephthalate resin (PBT resin) as a polyester-based artificial hair which is improved to the drawback of winding-up property has been proposed. Such a PBT resin is advantageous in that it is flexible compared to a PET resin, has a resilience to elasticity, has a touch similar to that of human hair, and is not likely to be crimped like a PET resin.

However, the PBT resin also has drawbacks such as poor curl due to high elastic recovery rate, low curl-setting property due to low glass transition point.

A polymer alloy system in which a PET resin and a PBT resin are mixed and radiated is proposed as means for improving the defectiveness of these PET resins and PBT resins. For example, Japanese Laid-Open Patent Publication No. 2002-161423 discloses artificial hair which is soft and hardly crimped with human hair by mixing 20% to 40% of PBT resin with PET resin and spinning.

However, the artificial hair obtained by spinning the PET resin and the PBT resin at a constant mixing ratio shows intermediate properties between the PET resin and the PBT resin, but the curling property is inferior to the human hair and PET resin, It is merely having little performance such as losing resin.

Further, Japanese Patent Publication No. 4823237 discloses an artificial hair which is made of PTT resin and which has a soft touch and has a soft touch.

PTT resin is a medium structure between PET resin and PBT resin. It is said to be a material which combines the shape stability of PET resin and softness of nylon, and was expected as a material for artificial hair having excellent curl and improved winding property.

However, according to the studies of the inventors of the present invention, the PTT resin exhibited properties similar to those of the PBT resin in either case, and the curl and curl setting properties were not satisfactory.

As described above, artificial hair (hereinafter referred to as "polyester artificial hair") made of a polyester monofilament having curling property and winding property equivalent to human hair and having excellent curl setting and styling properties It is true.

Prior art literature

[Patent Literature]

Patent Document 1: Japanese Patent Publication No. 3074862

Patent Document 2: Japanese Laid-Open Patent Publication No. 2002-161423

Patent Document 3: Japanese Patent Publication No. 4823237

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide artificial hair having curling property and winding property equivalent to human hair in polyester artificial hair and wig using the artificial hair.

It is another object of the present invention to provide a polyester-based artificial hair having excellent curl-setting properties and having styling properties and feel (appearance, texture, texture and the like such as gloss) close to human hair and a wig using the same.

In order to achieve the above object, the present invention relates to artificial hair composed of a polyester monofilament and a wig using the artificial hair,

The artificial hair comprises:

A core-sheath structure comprising a core and a sheath covering the core,

Wherein the core portion is made of polybutylene terephthalate resin or polytrimethylene terephthalate resin,

And the initial portion is made of a polyester monofilament made of a polyethylene terephthalate resin.

It is preferable that the polyester monofilament is formed with a fine concavo-convex portion on its surface by a weight reduction treatment using an alkali solution, and the weight reduction ratio thereof is preferably about 30% -50%.

The polyester monofilament preferably has a cross-sectional area ratio S1 / S2 of 10 / 90-40 / 60, which is a ratio of the cross-sectional area S1 of the deep portion to the cross-sectional area S2 of the initial portion after the weight loss treatment using the alkali solution .

According to the present invention, it is possible to realize curling and winding properties equivalent to those of a human hair which could not be realized in conventional polyester artificial hair. Moreover, it is possible to obtain a feeling similar to a human hair, such as smooth combing and fussy feeling without blurring and shine unique to synthetic fibers. Furthermore, in such a wig using an artificial hair, styling by a hair dryer or curling iron can be freely performed, as in the case of hair cutting, and the styling property by wet ironing or steam iron is superior to human hair .

1 is a cross-sectional view showing a section of a core-sheath type polyester monofilament according to a first embodiment of the present invention.
Fig. 2 is an explanatory view for explaining the manufacturing process of the core-sheath type polyester monofilament according to the embodiment of the present invention.
3 is a flowchart for explaining a manufacturing process of artificial hair according to an embodiment of the present invention.
Fig. 4 is a photograph of the surface of the core-sheath type polyester monofilament after the weight loss treatment according to the embodiment of the present invention observed with a scanning electron microscope. Fig.
Fig. 5 is an explanatory diagram for explaining the evaluation of touch as artificial hair. Fig.

Hereinafter, the artificial hair according to the first embodiment of the present invention and the wig using the artificial hair will be described in detail.

Artificial hair

First, an artificial hair according to an embodiment of the present invention will be described.

The artificial hair includes two components of polybutylene terephthalate resin (PBT resin) or polytrimethylene terephthalate resin (PTT resin) as core components and polyethylene terephthalate resin (PET resin) As shown in Fig. 1, in the core-sheath type polyester monofilament F, the core portion Fa and the core portion Fb are formed to be substantially concentric circles.

The PET resin has a glass transition point of 70 ° C. to 80 ° C. and has a relatively high glass transition point and is rigid as compared with the PBT resin. Therefore, the PET resin has good curling properties such as curling iron, Lt; / RTI > In addition, the PBT resin and the PTT resin are flexible in comparison with the PET resin, and have elastic recovery properties. The glass transition temperature of the PBT resin is 40 占 폚 to 50 占 폚, the melting point thereof is 224 占 폚 to 228 占 폚, the glass transition temperature of the PTT resin is 45 占 폚 to 60 占 폚, and the melting point thereof is about 228 占 폚.

Therefore, the core-sheath type polyester monofilament (F) in which the PET resin is the initial portion (Fb) and the PBT resin or the PTT resin is the core portion (Fa) is characterized in that the characteristics of the PET resin and the properties of the PBT resin and the PTT resin Both of the characteristics possessed by the hair, the heat resistance, the curling and the curl setability, the softness and the elastic recovery are obtained, and the wig using the wig has curling and winding properties equivalent to human hair, It is possible to obtain a touch similar to that of human hair, such as combing or wobbly touch. In addition, styling by a hair dryer or curling iron can be freely performed, and curling performance at the time of wetting and styling by a steam iron are superior to human hair.

However, in order to utilize the characteristics of the PET resin, the PBT resin and the PTT resin, it is considered that the PBT resin or the PTT resin is used as the core and the PET resin is used as the core. In this case, however, There is a problem in that it is not suitable for styling using a heating means such as curling iron since the melting point is low.

The PBT resin, the PTT resin and the PET resin are not particularly limited as far as they are fiber-forming, and 1,4-butanediol, 1,3-propanediol and ethylene glycol are used as diol and terephthalic acid is used as bifunctional carboxylic acid But it may contain a small amount of a copolymerization component as long as it does not significantly change the original melting point or glass transition point.

The intrinsic viscosity of the PET resin is preferably about 0.5-1.4, more preferably about 0.6-1.0 on the fiber-forming surface. If the intrinsic viscosity is less than 0.5, the mechanical strength of the obtainable monofilament is lowered. If the intrinsic viscosity is more than 1.4, the melt viscosity becomes higher with an increase in the molecular weight, so that the melt spinning becomes difficult or the degree of fineness becomes uneven. The intrinsic viscosity of the PET resin as the supercritical component preferably does not exceed the intrinsic viscosity of the PBT resin and the PTT resin as the core components. The intrinsic viscosity referred to herein is an intrinsic viscosity determined by a viscosity measured at 25 ° C in an orthochlorophenol solution, and is expressed as [?].

The intrinsic viscosity of the PBT resin and the PTT resin is preferably about 0.6 to 1.5, more preferably about 0.7 to 1.2 on the fiber-forming surface. When the intrinsic viscosity is less than 0.6, the mechanical strength of the obtained monofilament is lowered. If the intrinsic viscosity is more than 1.5, the melt viscosity becomes higher with an increase in the molecular weight, so that the melt spinning becomes difficult and the fineness becomes uneven. The intrinsic viscosity of the PBT resin and the PTT resin, which are core components, is preferably at least 1.0 on the aspect of the circularity and the eccentricity.

It is preferable that the PET resin of the supercritical component contains inorganic fine particles as a mordant agent. Examples of the inorganic fine particles include, but are not limited to, silicon oxide (silica), aluminum oxide (alumina), calcium carbonate, calcium phosphate, barium sulfate, talc and zeolite. In addition, silica is preferably used from the viewpoints of ease of handling and color development.

The method of containing the inorganic fine particles may be a known method in which a slurry in which the inorganic fine particles are dispersed in ethylene glycol is added to monomers of terephthalic acid and polycondensation is performed. However, a master in which inorganic fine particles are dispersed in PET resin at high concentration It is simple and preferable that a batch is prepared and the monofilament is mixed with a certain amount of the PET resin by spinning during spinning.

The PET resin as the supercritical component may contain functional additives such as various coloring pigments, antimicrobial agents, deodorants, antistatic agents, and flame retardants in addition to the non-fogging agent. The PBT resin and the PTT resin, which are core components, are not particularly required to contain an additive, but various coloring pigments may be added to improve the color of the color during color development.

Next, a method for producing the core-sheath type polyester monofilament of the present invention will be described with reference to Fig. As shown in Fig. 2, the radiator 1 used for producing the core-sheath type polyester monofilament is composed of two sets of resin feed tanks 2a and 2b for the core and the superstructure and extruders (3a) and (3b), and the radiation mouthpiece is a radiation mouthpiece (4) for a core-sheath type conjugate fiber, it has the same structure as a conventional monofilament radiator, . In other words, the monofilament extruded into the cooling bath 5 from the spinneret 4 for the core-sheath type conjugate fiber is then stretched in the stretching bath 6 and set in the set bath 7 as heat. Thereafter, an oil agent is applied and wound on a bobbin by a winder 8.

The stretching is performed by stretching or multi-stage stretching. In the heating method, a heat bath, a hot air bath, a plate heater, a steam jet, and a heating roller are used alone or in combination.

The stretching magnification, the stretching temperature, the heat set temperature, and the heat set magnification may be suitably optimized depending on the physical properties such as the desired strength and elongation, or the shrinkage ratio. The term "shrinkage ratio" as used herein refers to a shrinkage rate in boiling water for 30 minutes and a dry heat at 130 ° C for 10 minutes, preferably 5% or less, more preferably 2% or less. If the shrinkage percentage exceeds 5%, dimensional stability at the time of thermal processing in the manufacturing process of the artificial hair is deteriorated and a phenomenon of crimping occurs.

The matting agent to be blended with the supercritical component may be compounded in a PET resin which is a supercritical component in advance, or a master batch containing a matting agent as described above may be prepared, and a dry blending method may be used in the previous step of extruder Or may be blended.

Next, the manufacturing process of the artificial hair of the present invention will be described with reference to Fig. The monofilament is wound around the monofilament in a predetermined amount from a bobbin wound around the monofilament and subjected to a weight loss treatment using an aqueous alkali solution to neutralize the monofilament. Subsequently, dyeing treatment, reduction washing treatment, and the like are carried out, followed by drying with an emulsion and resin processing as necessary. Finally, after cutting them to a predetermined length, they are combed to obtain artificial hair.

In the production process of polyester-based artificial hair, the weight loss treatment process using an aqueous alkali solution is an important step for improving the luster such as roughness and roughness unique to synthetic fibers by forming fine irregularities on the surface. By performing the weight reduction treatment in this manner, as shown in Fig. 4, fine irregularities large and small on the surface are formed. As a method of the weight loss treatment, for example, there is a method of infiltrating into an aqueous solution of sodium hydroxide having a concentration of 5% by weight at a temperature of 98 캜 and treating the weight until a predetermined weight loss rate is reached.

The weight loss rate is determined according to the balance with the amount of the matting agent (silica) contained in advance, but it is preferably 30% -50%. When the weight loss rate is less than 30%, sufficient gloss improvement effect can not be obtained, and the touch is also spoiled. Further, when the weight loss rate exceeds 50%, the deterioration proceeds and the sufficient mechanical strength as the artificial hair can not be maintained.

The content of the matting agent is preferably in the range of 0.1% -1.0%. When the content is less than 0.1%, a matting effect can not be obtained irrespective of the weight loss rate. When the content is more than 1%, the opacity increases and the color tone after the dyeing tends to become faint.

In addition, the artificial hair of the present invention has a weight loss rate of 40-50 in the weight loss treatment with an aqueous alkali solution, and a skin-like touch and gloss is obtained when the content of the matting agent (silica) is 0.25% -0.50% And the thickness after the weight loss treatment was set to 60 탆 to 70 탆, so that a touch similar to human hair could be obtained.

In order to obtain good heat resistance, curling property, curl-setting property, flexibility and elastic recovery property of the present invention, the polyester monofilaments have a cross-sectional area (S1) of the core portion after the weight reduction treatment using an alkali solution and a cross- S2) is 10 / 90-40 / 60.

wig

Next, the wig using artificial hair produced as described above will be described.

Such a wig consists of a wig base and the artificial hair implanted in such a wig base.

The wig base includes, for example, a net base knitted in a flat or net shape made of nylon or polyester filament, and an artificial skin base made of a sheet-shaped resin such as polyurethane or the like. It is not limited thereto as long as it has a function as a base.

The artificial hair prepared as described above is stitched to the wig base at an appropriate density, and the artificial hair is cut into an appropriate length to make a wig.

Example

Hereinafter, specific examples of the artificial hair of the present invention and the wig using the artificial hair will be described.

The evaluation of artificial hair in the examples was carried out in the following manner.

Physical property test

The fineness, tensile strength, tensile elongation and apparent elastic modulus were measured in accordance with the measuring method of JIS L1013, and the 3% elongation modulus was measured in accordance with the measuring method of JIS L1013 B.

Core / sec cross section ratio

Sectional area S1 of the core and the sectional area S2 of the center were measured and the sectional area ratio S1 / S2 was calculated.

Hair evaluation

Curl set castle

Artificial hair was wrapped around paper with an aluminum pipe of about 2 cm in diameter, which had been drilled with a 5 mm diameter hole in several places on the surface. After passing through a conveyer oven at 150 캜 for a few minutes, the hair was hanged by its own weight, Growth status was confirmed, and compared with the human body, the following four stages were evaluated.

◎ Very good (keeps pipe diameter as it is)

○ Good (slightly increasing degree)

△ Poor (considerably increased)

× Very bad (mostly stretched)

Winding

The bundle of artificial hair was brushed 1000 times with a brush made of stainless steel, and evaluated by the following four steps as compared with human hair.

◎ Very good (not crimped at all)

Good (slightly curved)

Poor (c-crimped)

× very bad (crimped and bent)

touch

As shown in Fig. 5, one monofilament was stitched on the wig base 10, and its standing state (standing angle) was observed.

◎ Very good (almost the same angle as human)

○ Good (It is close to human hair)

△ Poor (more angle or lie angle compared to human hair)

× Extremely bad (extremely elevated or lumbar angle compared to human skin)

The evaluation of wigs using artificial hair in the examples was carried out in the following manner.

Wig test

Three monitors wiped the same wig five times for a total of 15 times, and the styling work was repeated using a dryer, a curling iron, a steamer, etc., and the following items were evaluated in the following four steps.

◎ Very good

Good

△ Poor

× very bad

Naturalness of gloss

And evaluated visually as compared with human.

touch

The touch feeling such as a rough state, a rough feeling, a fussy feeling, and a softness when a comb or a finger was combed was evaluated in comparison with human hair.

Freezing (Winding) Test

The brushing was performed 200 times each time, and the degree of crimp was visually evaluated.

Curl iron

Curl iron was used to evaluate the state of curl.

Dryer

The curl was made with a brush using a hair drier, and the work of turning the curl was repeatedly evaluated.

Steamer

Using a steamer, the root was partially raised to make the volume, or the root was partially laid down to evaluate the volume.

Style retention after cleaning

The maintenance state of the style such as curl after cleaning was evaluated.

And the degree of styling was comprehensively evaluated.

Examples 1-1 to 1-4

As the PET resin as the second component, MA-2103 (intrinsic viscosity: 0.68) manufactured by Unichica Co., Ltd. was used. Further, 5 parts by weight of a master batch containing 5% of silica made by Toso Silica KK as a mordant agent was added to 95 parts by weight of PET resin. NOVADURAN 5010L (intrinsic viscosity 1.0) (PBT resin) manufactured by Mitsubishi Engineering Plastics Co., Ltd. was used as a core component. The PET resin and the PBT resin were melted at an extruder temperature of 285 ° C at the beginning and an extruder temperature of 270 ° C at the core. The amount of the extrudate was adjusted to 5/95 (Examples 1-1) and 10 / 90 (Example 1-2), 20/80 (Example 1-3), and 30/70 (Example 1-4), and cooling was carried out in a spinneret for 60 core-sheath type conjugate fibers Then stretched 4 times in hot water at 90 DEG C and then heat set in a hot air bath at 200 DEG C. After that, an emulsion was added and then wound on a bobbin to obtain a core-sheath type polyester monofilament having a fineness of 89 dtex .

Next, the filament was wound around a predetermined amount of failure, and the weight loss treatment was performed so that the weight loss was 45% by infiltrating into an aqueous sodium hydroxide solution having a concentration of 50 g / L and a temperature of 98 캜.

Then, as described above, after the dyeing treatment and the reduction washing treatment, the emulsion was applied and then dried. Finally, these were cut to a predetermined length and then combed to obtain a black artificial hair having a fineness of 49 dtex.

Examples 1-5 to 1-8

Except that PTT resin crystallized product (intrinsic viscosity: 1.0) (PTT resin) manufactured by Asahi Kasei Chemical Co., Ltd. was used as the core component, and the core / 5 to 95, Example 1-6 in which the weight ratio was 10/90, Example 1-7 in which the weight ratio was 20/80 and Example 1 in which the weight ratio was 30/70 -8. Further, in each of Examples 1-5 to 1-8, each step such as weight loss treatment, dyeing treatment, reduction washing treatment, emulsion application, drying, cutting, combing and the like were carried out as described above.

Comparative Example 4

The human being was prepared for comparison.

The physical properties of the artificial hair, the ratio of the core / sheath area, the curl-settability, the winding property, and the tactile sensation of the obtained artificial hair of Examples 1-1 to 1-8 were evaluated in comparison with human hair. The results are shown in Tables 1 and 2.

[Table 1]

[Table 2]

As can be seen from Tables 1 and 2, in Examples 1-2, 1-3, 1-6, and 1-7, curl-setting property, 4 < tb > Comparative Example 4) < tb >< SEP > On the other hand, in Examples 1-1 and 1-5, curling resistance was equivalent to that of human hair, but the winding and tactile sensation were slightly inferior to human hair, and Examples 1-4 and 1- This was the same as the human hair, but the curl-settling and tactile sensation were slightly behind. From this, it is preferable that the core / sheath area ratio (S1 / S2) is 10 / 90-40 / 60 in order to obtain the curl setting property, the winding style and the touch feeling equivalent to the human hair. If the ratio is less than 10/90, The skin texture and texture are lagging compared with the human hair, and when the ratio exceeds 40/60, the curl-settling property and the touch feeling are inferior to the human hair.

Examples 2-1 and 2-2

Each treatment was carried out in accordance with Example 1-2 and Example 1-6 except that the weight loss was carried out so that the weight loss was 25% using an aqueous alkali solution. The treatment was carried out in the same manner as in Example 2-1 And Example 2-2 were obtained.

The properties of artificial hair, core / area ratio, curl and winding property were evaluated. The results are shown in Table 3.

[Table 3]

As can be seen from Table 3, all of the artificial hairs of Examples 2-1 and 2-2 had the same curl-like properties as human hair but were slightly inferior in curling resistance.

Comparative Examples 1 to 3

In Comparative Example 1, a PET resin (MA-2103 (intrinsic viscosity 0.68), manufactured by Uniqika Corporation), a PBT resin (NOVADURAN 5008 (intrinsic viscosity 0.85), manufactured by Mitsubishi Engineering Plastics Co., Ltd.) PTT resin (manufactured by Asahi Kasei Chemical Co., Ltd. (intrinsic viscosity: 0.86)) was individually used and discharged from the spinneret into a cooling bath using 60 common hole cores, , And then heat set in a hot air bath at 200 ° C. After that, an emulsion was added and then wound on a bobbin to obtain a monofilament of 89 dtex.

Next, the monofilament was wound around a predetermined amount of failure, infiltrated into an aqueous solution of sodium hydroxide having a concentration of 50 g / L and a temperature of 98 DEG C, so that the weight loss rate was 45% in Comparative Example 1, 3, the weight reduction treatment was carried out so as to have a weight loss rate of 25%, followed by dyeing treatment and reduction washing treatment, followed by emulsification and drying. Finally, these were cut to a predetermined length and then combed to obtain black artificial hair. The fineness of the artificial hair was 49 dtex in Comparative Example 1, and 66 dtex in Comparative Example 2 and Comparative Example 3. The reason why the weight loss rate was changed in Comparative Example 1, Comparative Example 2, and Comparative Example 3 is that PBT resin and PTT resin are resistant to alkali aqueous solution because they have better chemical resistance than PET resin, It takes about three times as long to achieve the same weight loss rate and is not realistic, so the weight loss ratio is set to be low.

The physical values, curling, winding, and touch of the obtained artificial hair were evaluated in comparison with human hair. The results are shown in Table 4.

[Table 4]

As can be seen from the above Table 4, in Comparative Example 1, the curling property was equivalent to that of human hair, but the curling property and touch feeling were worse than human hair. In Comparative Example 2, the curling property was equivalent to that of the human hair, but the curl-setting property was very poor as compared with the human hair, and the feeling was also slightly inferior. In Comparative Example 3, the curl setability was slightly improved as compared with Comparative Example 2, but showed almost the same tendency as Comparative Example 2.

As a result, when the glass transition point is high, the curl setting property is increased, but the curling property is lowered. When the glass transition point is low, the curling property is lowered, but the curl setting property is lowered.

Comparative Examples 5-1 to 5-3

(Comparative Example 5-1), 70/30 (Comparative Example 5-2) and a PBT resin (manufactured by Mitsubishi Engineering Plastics Co., Ltd. (intrinsic viscosity of 0.80) ) And 60/40 (Comparative Example 5-3), and each treatment was carried out in accordance with Comparative Examples 1 to 3 to obtain a black monofilament of 89 dtex .

Next, the monofilament was subjected to a weight loss treatment using an alkali aqueous solution such that the weight loss rate was 35% in Comparative Example 5-1, and the weight loss rate was 30% in Comparative Example 5-2 and Comparative Example 5-3 Except that the respective treatments were carried out in accordance with the above-mentioned Comparative Examples 1 to 3 to obtain black artificial hair. The fineness of such artificial hair was 58 dtex in Comparative Example 5-1, and 62 dtex in Comparative Example 5-2 and Comparative Example 5-3.

The properties of artificial hair, curl, curling, and tactile sensation were compared with human hair. The results are shown in Table 5.

[Table 5]

As can be seen from the above Table 5, all of Comparative Examples 5-1 to 5-3 were inferior in curl-setting property, winding property and touch feeling as compared with human hair.

The results of Examples 1-1 to 1-4 and Comparative Examples 5-1 to 5-3 show that the PBT resin is referred to as the core portion and the PET resin is used as the core portion, And the PET resin are mixed with each other.

The mixing of the PET resin and the PBT resin can be performed by a so-called dry blending method in which the respective tips are mixed before extruding the monofilament radiator. However, if the PET resin and the PBT resin are not mixed sufficiently uniformly, Resulting in defects such as crimping in the process. Therefore, mixing of the PET resin and the PBT resin was carried out in advance by an extruder.

The mixed monofilament of the PET resin and the PBT resin is not only monofilament of the PBT resin or the PTT resin, but the resistance to the aqueous alkaline solution is stronger than that of the monofilament of the PET resin alone. Therefore, Compared with the case of FIG. Moreover, the PET resin / PBT resin mixing ratio of the artificial hair before and after the weight reduction treatment is varied due to the difference in resistance of the PET resin and the PBT resin to the aqueous alkaline solution.

Examples 3-1 to 3-6 and Comparative Examples 6 to 8

Artificial hair of Examples 1-2, 1-3, 2-1, 1-6, 1-7, 2-5, Comparative Example 1 and Comparative Example 2 and Comparative Example 4 Were respectively planted on the wig base to obtain wigs of Examples 3-1 to 3-6 and Comparative Examples 6 to 8. A nylon monofilament knitted in a net shape was used for the wig base.

The eight items of the obtained natural wig, touch, winding, curling iron, dryer, steamer, styling ability after washing, and simplicity of styling were evaluated. The results are shown in Tables 6 and 7.

[Table 6]

[Table 7]

As can be seen in Tables 6 and 7, the wigs of Examples 3-1, 3-2, 3-4, and 3-5 obtained very good results for all evaluation items And the result was exceeding the human hair especially regarding the steamer, the styling ability after cleaning, and the simplicity of styling. The wig of Example 3-3 and Example 3-6 was slightly inferior to that of human hair in terms of naturalness, touch and winding properties of gloss, but the result of human hair over styling, Respectively. In addition, the wig of Comparative Example 6 was extremely lighter than that of the human hair, and the wig of Comparative Example 7 slightly lagged in comparison with the human hair in naturalness of gloss, and extreme .

1: Core-type polyester monofilament radiator
2a: resin feed tank for deep part
2b: Resin feeding tank
3a: Extruder with a deep-weighing device
3b: Extruder with weighing device
4: Radiant mouthpiece for core-sheath type conjugated fiber
5: Cooling tank
6: stretching tank
7:
8: Winder
F: core-sheath type polyester monofilament
Fa: Depth
Fb:

Claims

And has a deep core structure consisting of a deep portion and a superficial portion covering the deep portion,
Wherein the core portion is made of polybutylene terephthalate resin or polytrimethylene terephthalate resin,
Wherein the initial portion is made of a polyester monofilament made of a polyethylene terephthalate resin.

The artificial hair according to claim 1, wherein the polyester monofilament is formed with a fine irregular portion on its surface by a weight loss treatment using an alkali solution.

3. The artificial hair according to claim 2, wherein the weight reduction ratio by weight reduction treatment is 30% -50%.

The polyester monofilament according to claim 2, wherein the polyester monofilament has a cross sectional area ratio (S1 / S2) of 10/90 to 40/60, which is a ratio of a cross section area (S1) Artificial hair.

The polyester monofilament according to claim 3, wherein the polyester monofilament is characterized by having a cross sectional area ratio (S1 / S2) of 10/90 to 40/60, which is a ratio of a cross section area (S1) Artificial hair.

A wig comprising a wig base and artificial hair embedded in the wig base,
Wherein the artificial hair is the artificial hair according to any one of claims 1 to 5.