WO2010090191A1 - かつら - Google Patents
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- WO2010090191A1 WO2010090191A1 PCT/JP2010/051449 JP2010051449W WO2010090191A1 WO 2010090191 A1 WO2010090191 A1 WO 2010090191A1 JP 2010051449 W JP2010051449 W JP 2010051449W WO 2010090191 A1 WO2010090191 A1 WO 2010090191A1
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- hair
- artificial hair
- artificial
- nylon
- fiber
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
- A41G3/00—Wigs
- A41G3/0083—Filaments for making wigs
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
- A41G3/00—Wigs
- A41G3/0066—Planting hair on bases for wigs
Definitions
- the present invention relates to a wig formed by attaching hair made of polyamide fiber to a wig base.
- Wig is constructed by attaching hair to a wig base molded into a head shape.
- the wig base is generally made of synthetic resin artificial skin or net, or a combination thereof.
- hair natural hair collected from human hair or other animals, or artificial hair made of synthetic fibers is used.
- synthetic resin such as polyamide resin such as nylon, polyester resin, polyvinyl chloride resin and acrylic resin have been put to practical use, and low strength, fading, style retention, etc. that are disadvantages of human hair Overcoming.
- polyamide fibers are more suitable for wig hair because they have flexibility and water absorption and are close to human hair and easy to set by heat.
- the polyamide fiber has a relatively low elastic modulus and flexural rigidity value compared to other fibers, when the hair composed of the polyamide fiber is attached to the wig base, the rising of the hair from the wig base is small. Therefore, there is a drawback in that the volume of hair as a whole is less likely to occur and the three-dimensional effect is inferior, so that hairstyles that can be produced are limited.
- the fibers attract each other and stick together in a bundle (hereinafter referred to as “bundling property”).
- Patent Document 1 discloses a wig provided with artificial hair in which nylon fibers and polyester fibers are mixed, and Patent Document 2 uses polyamide-based artificial hair in combination with hair such as modacrylic and polyvinyl chloride. It is disclosed that it may be used in combination with human hair.
- JP-A-9-324314 (see [Summary]) JP 2007-332507 A (see [0067])
- the present invention provides a wig capable of solving the above-described problems and improving the sense of volume and improving the convergence while maintaining the flexibility and high heat setting property of the polyamide fiber. With the goal.
- the first artificial hair, the aliphatic polyamide resin, and the semi-aromatic hair are made of an aliphatic polyamide resin. It is characterized in that it is attached to the wig base by mixing with the second artificial hair blended with a group polyamide resin in a weight ratio of 30:70 to 60:40.
- the second artificial hair preferably has an aliphatic polyamide resin and a semi-aromatic polyamide resin in any combination of a single layer structure, a sheath core structure, and a sea-island structure.
- the second artificial hair has a sheath core structure, the core portion is made of a semi-aromatic polyamide resin, and the sheath portion is made of an aliphatic polyamide resin.
- the second artificial hair preferably has a sea-island structure in which the sea part is an aliphatic polyamide resin and the island part is a semi-aromatic polyamide resin.
- the first artificial hair and the second artificial hair are both 7.8 ⁇ 10 ⁇ 5 N ⁇ cm in terms of a diameter of 80 ⁇ m under measurement conditions of a temperature of 20 ° C. and a humidity of 40%. It is preferable to have a bending rigidity value of 2 / piece or less.
- the difference in bending rigidity between the first artificial hair and the second artificial hair is preferably 1.5 to 2.0 ⁇ 10 ⁇ 5 N ⁇ cm 2 / bar.
- a wig is produced by molding artificial hair composed of different types of polyamide resins among polyamide resins and attaching the artificial hair made only of this same type of polyamide resin to the wig base. is doing. Therefore, even if these artificial hairs are mixed and attached in one wig, the basic properties of polyamide do not change, so that curling can be applied without curling even at the same temperature. It is possible, has high curl retention, and does not easily collapse the hairstyle.
- the volume feeling can be improved without losing the flexibility of the polyamide fiber, and the variety of hairstyles that can be produced is realized. Furthermore, since the composition of each artificial hair to be mixed is different, the convergence is improved as in the case of mixing fibers made of different materials, a natural appearance is produced, and handling such as combing is facilitated.
- FIG. 1 shows the structure of the hair shown in FIG. 1,
- A) is a diagram schematically showing hair having a single layer structure,
- B) is hair having a sheath core structure, and
- C is hair having a sea-island structure. .
- the discharge part vicinity in a spinning apparatus is shown typically,
- A) is a schematic diagram,
- B) is a top view of a nozzle.
- the artificial hair manufacturing system is shown conceptually.
- (A) is an artificial hair manufacturing system having a single-layer structure
- (B) is a conceptual diagram of an artificial hair manufacturing system having a sheath core structure. It is a figure which shows typically the process of giving a curl to the produced hair material.
- FIG. 1 is a diagram schematically showing a wig according to an embodiment of the present invention.
- a wig 1 according to an embodiment of the present invention has a wig base 2 formed in a head shape, and hair (also referred to as “artificial hair”) 3 attached to the wig base 2.
- hair also referred to as “artificial hair”
- the hair 3 is mixed with a plurality of artificial hairs 3A and 3B made of different types of polyamide resins at a predetermined ratio.
- the first artificial hair 3A made of an aliphatic polyamide resin and the second artificial hair 3B made by integrating an aliphatic polyamide resin and a semi-aromatic polyamide resin are mixed at a predetermined ratio. It is attached to the wig base 2. Since both the first artificial hair 3A and the second artificial hair 3B belong to the polyamide resin, the basic properties of the polyamide resin do not change for each hair. Therefore, before being attached to the wig base 2 as the first artificial hair 3A and the second artificial hair 3B, shrinkage hardly occurs due to heat when the curl is applied to the hair material.
- the hair to be applied to the present invention that is, the artificial hair 3 has an upper limit value of the bending stiffness value in natural hair in order to approximate the bending stiffness of natural hair, specifically, 7.8 ⁇ 10 ⁇ 5 N ⁇ It is preferable to have a bending rigidity value of cm 2 / piece or less. This value is a value converted in the case where the measurement value is 20 ° C. and the humidity is 40% and the measured diameter is 80 ⁇ m.
- the bending rigidity value is a value obtained by measuring and converting in this environment.
- the bending stiffness value is a physical property value related to the texture, such as the feel and texture of the fiber, and indicates the magnitude of the force required for bending, and it can be quantified by the Kawabata measurement method. It is a physical property value widely recognized in (Non-patent Document 1).
- An apparatus capable of measuring the bending stiffness value of a single fiber or hair has also been developed (Non-Patent Document 2).
- This bending stiffness value is also referred to as bending stiffness, and is defined by the reciprocal of the curvature change caused by applying a unit-sized bending moment to artificial hair. As the bending stiffness value of the artificial hair is larger, the artificial hair is harder to bend and hard to bend, that is, it is hard and hard to bend. Conversely, it can be said that the smaller the bending stiffness value, the easier it is to bend and the softer artificial hair.
- the composition of the hair 3 includes a single component of aliphatic polyamide, semi-aromatic polyamide, blend of different types of aliphatic polyamide, blend of different types of semi-aromatic polyamides, or aliphatic polyamide and semi-aromatic Blends with polyamides are conceivable.
- the first artificial hair 3A uses an aliphatic polyamide resin
- the second artificial hair 3B uses an aliphatic polyamide resin and a semi-aromatic polyamide resin. Even if it is a polyamide resin, a fiber using a wholly aromatic polyamide resin has a high bending rigidity value, which exceeds the upper limit value of the bending rigidity value of natural hair.
- Examples of the aliphatic polyamide resin include nylon 4, nylon 6, nylon 66, nylon 46, nylon 610, and nylon 12.
- Examples of the semi-aromatic polyamide resin include nylon 6T, nylon 9T, and nylon MXD6. It can be used in the invention.
- the structure of the hair 3 As described later, a single layer structure, a composite structure such as a sea island or a sheath core can be considered, but the upper limit value of the bending stiffness value is 7.8 ⁇ 10 ⁇ 5 N ⁇ cm 2 / bar,
- the structure of the hair 3 is not particularly limited as long as the difference in bending rigidity between the artificial hairs to be mixed is in the range of 1.50 to 2.0 ⁇ 10 ⁇ 5 N ⁇ cm 2 / piece.
- FIG. 2 shows the structure of the hair 3 shown in FIG. 1, wherein (A) shows hair 4 having a single layer structure, (B) shows hair 5 having a sheath core structure, and (C) shows hair 6 having a sea-island structure. It is a figure shown typically. Although each hair 4, 5, and 6 are not shown, all have irregularities on the surface.
- hairs 3 for example, hair 4 having a single layer structure as schematically shown in FIG. 2 (A) can be mentioned, and the hair 3 may be composed of either a single component or a plurality of components.
- hair 5 having a sheath core structure as shown schematically in FIG. 2 (B) is mentioned.
- the hair 5 has a sheath portion 5 b around the core portion 5 a, and the core portion 5 a. And the sheath 5b are made of different materials. Either the material of the core 5a and the material of the sheath 5b may be a single component or a plurality of components.
- the hair 6 has a radial cross-section sea-island structure in which sea portions 6a and a plurality of island portions 6b are scattered in a free manner. This sea-island structure is also called a cylinder structure.
- the hair 3 may have a composite structure other than the sheath core structure and the sea-island structure, for example, a lamellar structure.
- the sheath core structure and the sea-island structure are preferable.
- the difference in bending stiffness between the first artificial hair 3A and the second artificial hair 3B is less than 1.50 ⁇ 10 ⁇ 5 N ⁇ cm 2 / bar, when the wig base 2 is implanted.
- the difference is 2.0 ⁇ 10 ⁇ 5 N ⁇ cm 2 / bar or more
- the first artificial hair 3A and the second artificial hair 3B Are not familiar with each other, the hair with higher bending stiffness rises, or the hair with lower bending stiffness entangles and promotes converging, so 1.50 to 2.0 ⁇ 10 ⁇ 5 N ⁇ cm A range of 2 / piece is preferred.
- the first artificial hair 3A and the second artificial hair 3B may both have the same cross-sectional shape.
- the artificial hair 3 is attached to the wig base 2
- this generally adopted method is not preferable because fibers having an irregular cross section are easily mixed, resulting in a twist or peculiarity and a specific surface gloss due to the different cross sectional shapes.
- the fiber itself made of polyamide has a specific specular gloss and is not suitable for hair for wigs as it is. Therefore, as an artificial hair, the fiber surface needs to be roughened in order to suppress the gloss. .
- the so-called blasting method in which abrasive material is sprayed onto the fiber surface to roughen it, is unique to polyamide compared to the method of adding irregularities to the fiber surface by mixing foreign substances such as inorganic substances. This is preferable because the flexibility is not impaired.
- the artificial hair is colored to match the hair color of the wig user's remaining hair as much as possible, or to the user's desired hair color.
- a wig coloring method there are an original method of kneading a dye or / and a pigment in a polyamide resin during the production of artificial hair, and a dyeing with a dye after the production of artificial hair. Considering the durability after coloring and the dimensional stability after finishing, the original deposition method is preferable.
- the original method is artificial hair colored by spinning a master batch chip containing 2 to 6% pigment in the same resin as the fiber to be melt-spun and blended with 10 to 20% of the resin to be melted. Can be manufactured.
- Synthetic fibers are generally made from thermoplastic resins. When the thermoplastic resin is heated, it is formed into a fiber by utilizing the property of changing from solid to liquid. Molding from a thermoplastic resin to a fiber is performed through two steps of spinning and stretching. The spinning process and the stretching process may be performed continuously or separately. Select according to the thickness and strength of raw materials and fibers. In the spinning process, the pellet-shaped thermoplastic resin is heated and melted, that is, melted, and is fed under pressure to the nozzle. Then, resin is extruded from the opening provided in the outer side of a nozzle, and becomes fibrous form.
- a large number of apertures may be provided in the nozzle to extrude 10 to 20 fibers at a time.
- the fiber is wound up while being continuously stretched by applying heat while applying a certain tension by the rotation of the stretching roller.
- the spun fiber can have a desired thickness and strength.
- dozens of spun fibers may be drawn at a time.
- FIG. 3 schematically shows the vicinity of the discharge unit in the spinning device, where (A) is a schematic view and (B) is a plan view of the nozzle.
- the melted polyamide resin 7c is caused to flow into the cylinder 7a, and is sent under pressure to the nozzle 7b. Then, molten resin is discharged from the opening 7e in the nozzle 7b, and the fiber is pushed out as indicated by reference numeral 7d.
- the fiber structure that is, whether it is a single-layer structure, a sheath core structure, a sea-island structure, or another composite structure is mainly determined by the shape of the nozzle 7b used in the spinning process.
- the nozzle has a structure in which a second plate is arranged with a gap below the first plate, called a distribution plate, and the first plate has grooves, protrusions, and openings for distributing resin. Either one is formed, and the second plate has an opening for discharging resin.
- the melted resin is poured into the first plate, and the shape and arrangement of grooves, protrusions, and openings in the first plate, and the arrangement and relation of openings in the second plate Any fiber of the composite structure can be produced. Further, by selecting the shape of the opening in the second plate, the cross-sectional shape of the fiber can be made into a circle, a saddle, a horseshoe, a cross, or the like.
- FIG. 4A and 4B conceptually show an artificial hair manufacturing system, where FIG. 4A is a conceptual diagram of an artificial hair manufacturing system having a single-layer structure, and FIG. 4B is a conceptual diagram of an artificial hair manufacturing system having a sheath core structure.
- FIG. 4A is a conceptual diagram of an artificial hair manufacturing system having a single-layer structure
- FIG. 4B is a conceptual diagram of an artificial hair manufacturing system having a sheath core structure.
- it is produced by the melt spinning and stretching apparatus shown in FIG.
- a polyamide resin chip and a polyamide resin chip in which a predetermined amount of a pigment are kneaded are put into a melting tank 11, and the melted resin is set in a discharge unit 13 in which a gear pump 12 sets a nozzle having a diameter of 0.3 to 1.0 mm.
- the fibrous resin discharged from the discharge port is passed through a hot water bath 14 at 40 to 80 ° C. Thereafter, the film is stretched by passing through the first stretching roller 15 and the first dry heat tank 16, and further stretched through the second stretching roller 17 and the second dry heat tank 18, and the third stretching roller 19 and the third dry heat.
- a polyamide resin chip obtained by kneading a predetermined amount of a polyamide resin chip as a first component and a pigment is charged into the melting tank 26A, and a polyamide resin obtained by kneading a predetermined amount of a polyamide resin chip as a second component and a pigment.
- the chip is put into the melting tank 26B, the melted first component resin is sent to the first inlet gold of the discharge portion 28 by the gear pump 27A, and the melted second component resin is sent to the first portion of the discharge portion 28 by the gear pump 27B.
- a fibrous resin is sent out from a delivery base having a nozzle having a desired composite structure and a diameter of 0.3 to 1.0 mm. Thereafter, the same steps as in the case of artificial hair having a single layer structure are performed.
- the cross-sectional shape of any artificial hair is determined by the nozzle shape of the outlet and outlet gold of the discharge portions 13 and 28, but the shape of the nozzle may be any of a circle, an ellipse, a saddle shape, a star shape, and the like.
- FIG. 5 is a diagram schematically showing a process of curling the produced hair material.
- a large number of hair materials 31 cut to an appropriate length for example, about 30 to 80 cm, such as about 400 to 700, are arranged side by side, and the center of the hair material 31 so as not to be separated.
- the hair bundle 30 is aligned with a hair-like hair bundle (weft).
- FIG. 5B the hair bundle 30 is wound around an aluminum pipe 33 or the like, and then curled by heat treatment. Thereby, the artificial hair 3 is completed.
- a wig base is produced by the following procedure.
- a resin solution dissolved in an organic solvent is applied to the head-shaped male gypsum of the wig wearer, the resin is removed from the gypsum after drying, and the head Mold into shape.
- the resin used at this time is preferably a thermoplastic elastomer such as polyurethane or silicone having flexibility.
- a resin solution in which urethane is dissolved in an organic solvent to fix the gypsum on the gypsum and easily form the gypsum from the net Is applied and dried, and the resin is removed from the gypsum and formed into a head shape.
- FIG. 6 is a diagram schematically showing a process of attaching artificial hair to the wig base.
- the wig base 41 of artificial skin and the filament 51 constituting the net base are shown only partially.
- the heel needle 42 is inserted into the wig base 41, and as shown in FIG. 6 (B), the loop-shaped hair 43 is inserted into the tip heel portion 42A of the heel needle.
- the tip hook portion 42A is hooked on the loop release end side of the hair 43 and pulled out from the loop, as shown in FIG.
- the hair 43 is tied to 41.
- the hook needle 42 is inserted through the filament 51 constituting the net, and the tip hook part 42A of the hook needle is looped as shown in FIG. 6 (E).
- FIG. 6 (F) shows a state where the hair 43 is hooked and the heel needle 42 is turned so that the engagement with the loop cannot be released, and the tip heel part 42A is hooked on the loop release end side of the hair 43 and extracted from the loop.
- the hair 43 is tied to the filament 51.
- the method of tying the hair 43 is performed by a known method used in manufacturing wigs.
- the mixing ratio of the first and second artificial hairs attached to the wig base was 30/70 to 30% by mass in terms of [contrastly low bending stiffness value hair] / [contrastly high bending stiffness value hair]. It is preferable to mix in the range of 60/40. Outside this range, the effect of hair with a low mixing ratio is lost, so there is no difference from the behavior of hair in a wig composed of a single hair with a high mixing ratio, and the problem of the present invention cannot be solved. In this invention, what is necessary is just to plant the 1st artificial hair and the 2nd artificial hair uniformly in the whole surface of a wig base by said mixing ratio.
- the first region can be specified by specifying a specific area of the wig base. It is possible to make it outside the above-mentioned range of the mixing ratio of the artificial hair and the second artificial hair, and such an arrangement is also within the scope of the present invention.
- the ratio of the first artificial hair to the second artificial hair is, for example, 5 to 20 to 95 to 80 in terms of mass ratio.
- the mixing ratio of the first artificial hair and the second artificial hair to be planted on the entire wig base is in the range of 30/70 to 60/40 by mass ratio as described above. Are preferably mixed together. With such a mixing ratio, local areas such as the top of the head and the hair divisions can exhibit a desired volume feeling as well as a desired curling, and the overall wig curl retention is high and the hairstyle collapses. hard. In addition, the volume feeling can be improved without losing the flexibility of the polyamide fiber, and a variety of hairstyles that can be produced can be realized. Furthermore, since the composition of each artificial hair to be mixed is different, the convergence is improved as in the case of mixing fibers made of different materials, a natural appearance is produced, and handling such as combing is easy.
- an aliphatic polyamide resin is used as the material for the first artificial hair
- an aliphatic polyamide resin and a semi-aromatic polyamide resin are used as the material for the second artificial hair.
- the hair has a single layer structure or a complex structure such as a sheath core or sea island.
- the second artificial hair has a sea-island structure
- the first and second artificial hairs are prepared by setting the production conditions so that the diameter is approximately 80 ⁇ m and preparing the first artificial hair 3A and the second artificial hair 3B. Each bending stiffness value of 3A and 3B was measured.
- the first artificial hair 3A and the second artificial hair 3B are mixed at different ratios in each of the examples and comparative examples to prepare an artificial hair bundle, and a hair bundle having a length of 20 cm is preliminarily placed on an aluminum pipe having a diameter of 25 mm.
- Example 1 as the first artificial hair 3A, a fiber of nylon 6 (PA6) having a perfect circular cross section and a single layer structure was produced. Specifically, nylon 6 (PA6) grade made by Mitsubishi Engineer Plastics and grade NOVAMID 1020 is used as a raw material chip, and each of the first to fourth stretching rollers 15, 17, 19, and 22 in FIG. The roller speed was adjusted. As a result, the fiber cross-sectional diameter was 83.7 ⁇ m. As the second artificial hair 3B, a single-layer structure fiber having a perfect circular cross-section was produced. Specifically, as a raw material chip, a grade MX nylon nylon MXD6 (PAMXD6) chip manufactured by Mitsubishi Gas Chemical Co., Ltd.
- PAMXD6 grade MX nylon nylon MXD6
- Example 1 the artificial hair bundle was prepared by mixing the first artificial hair 3A and the second artificial hair 3B at a ratio of 50:50.
- Example 2 the fiber of nylon 6 (PA6) produced in Example 1 was used for the first artificial hair 3A.
- a fiber having a perfect circle and a sheath core structure was produced.
- a grade MX nylon nylon MXD6 (PAMXD6) chip manufactured by Mitsubishi Gas Chemical Co., Ltd. is used as the raw material chip for the core part
- a grade NOVAMID 1020 nylon manufactured by Mitsubishi Engineer Plastic Co., Ltd. is used as the raw material chip for the sheath part.
- 6 (PA6) tips were used, and the weight ratio of nylon MXD6 tips to nylon 6 tips was 72:25.
- Example 3 the nylon 6 (PA6) fiber produced in Example 1 was used for the first artificial hair 3A.
- a fiber having a sea-island structure with a perfect cross-sectional shape was produced.
- a grade MX nylon nylon MXD6 (PAMXD6) chip made by Mitsubishi Gas Chemical Co., Ltd. is used as a base material, that is, a raw material chip for the sea part, and a raw material chip for the island part is manufactured by Mitsubishi Engineer Plastic Co., Ltd.
- Grade NOVAMID1020 nylon 6 (PA6) tips were used, and the weight ratio of nylon MXD6 tips to nylon 6 tips was 65:35.
- the cross-sectional diameter of the fiber was 83.2 ⁇ m.
- the cross-sectional structure in the axial direction of the second artificial hair has one island portion at the center of the cross section, and six island portions are arranged substantially evenly in a circumferential shape so as to surround the center island portion. It is a structure.
- Each island part was circular in cross section, and the diameter of the island part was 24.2 ⁇ m, so the area ratio of the island part to the sea part was 1.45: 1.
- the artificial hair bundle was prepared by mixing the first artificial hair 3A and the second artificial hair 3B at a ratio of 50:50.
- nylon 6 (PA6) fibers produced in the first example were used as the first artificial hair 3A.
- a fiber having a single layer structure made of nylon 6 and nylon MXD6 produced in the first example was used as the second artificial hair 3B.
- the first artificial hair 3A and the second artificial hair 3B were mixed at a ratio of 30:70 to produce an artificial hair bundle.
- Example 5 the nylon 6 (PA6) fiber produced in the first example was used as the first artificial hair 3A.
- a fiber having a single layer structure made of nylon 6 and nylon MXD6 produced in the first example was used as the second artificial hair 3B.
- the first artificial hair 3A and the second artificial hair 3B were mixed at a ratio of 60:40 to produce an artificial hair bundle.
- Example 6 the nylon 6 (PA6) fiber produced in the first example was used as the first artificial hair 3A.
- the second artificial hair 3B the sheath-core structure fiber produced in the second example was used.
- the first artificial hair 3A and the second artificial hair 3B were mixed at a ratio of 30:70 to produce an artificial hair bundle.
- Example 7 the nylon 6 (PA6) fiber produced in the first example was used as the first artificial hair 3A.
- the second artificial hair 3B the sheath-core structure fiber produced in the second example was used.
- the first artificial hair 3A and the second artificial hair 3B were mixed at a ratio of 60:40 to produce an artificial hair bundle.
- nylon 6 (PA6) fibers produced in the first example were used as the first artificial hair 3A.
- the sea-island structure fiber produced in the third example was used.
- the first artificial hair 3A and the second artificial hair 3B were mixed at a ratio of 30:70 to produce an artificial hair bundle.
- nylon 6 (PA6) fibers produced in the first example were used as the first artificial hair 3A.
- the sea-island structure fiber produced in the third example was used.
- the first artificial hair 3A and the second artificial hair 3B were mixed at a ratio of 60:40 to produce an artificial hair bundle.
- Comparative Example 1 In Comparative Example 1, an artificial hair bundle was prepared using only the nylon 6 (PA6) fibers prepared in Example 1 without using the second artificial hair.
- Comparative Example 2 nylon 6 (PA6) fibers produced in the first example were used as the first artificial hair 3A.
- As the second artificial hair 3B a single-layer structure fiber having a perfect circular cross-section was produced. Specifically, a nylon 46 (PA46) chip was used as the raw material chip, and the speeds of the first to fourth stretching rollers 15, 17, 19, and 22 in FIG. 4A were adjusted. The cross-sectional diameter of the fiber was 82.4 ⁇ m.
- the artificial hair bundle was prepared by mixing the first artificial hair 3A and the second artificial hair 3B in a ratio of 50:50.
- Comparative Example 4 nylon 6 (PA6) fibers produced in the first example were used as the first artificial hair 3A.
- As the second artificial hair 3B a single-layer structure fiber having a perfect circular cross-section was produced. Specifically, as a raw material chip, a grade MX nylon nylon MXD6 (PAMXD6) chip manufactured by Mitsubishi Gas Chemical Co., Ltd. and a grade 6 NOVAMID 1020 nylon 6 (PA6) chip manufactured by Mitsubishi Engineer Plastics Co., Ltd. in a weight ratio of 85:15 Using the mixture, the speeds of the first to fourth stretching rollers 15, 17, 19, and 22 in FIG. 4A were adjusted. The cross-sectional diameter of the fiber was 83.1 ⁇ m.
- an artificial hair bundle was prepared by mixing the first artificial hair 3A and the second artificial hair 3B at a ratio of 50:50.
- Comparative Example 5 In Comparative Example 5, the nylon 6 (PA6) fiber prepared in the first example was used as the first artificial hair 3A. As the second artificial hair 3B, a single-layer structure fiber having a perfect circular cross-section was produced. Specifically, a grade RE530A polyethylene terephthalate (PET) chip manufactured by Toyobo Co., Ltd. is used as a raw material chip, and each of the first to fourth stretching rollers 15, 17, 19, and 22 in FIG. The speed was adjusted. The cross-sectional diameter of the fiber was 80.1 ⁇ m. In Comparative Example 5, an artificial hair bundle was prepared by mixing the first artificial hair 3A and the second artificial hair 3B at a ratio of 70:30.
- PET polyethylene terephthalate
- Comparative Example 5 since a hard fiber of polyethylene terephthalate resin, which is a polyester, is mixed in the first artificial hair as the second artificial hair, the mixing ratio of the first artificial hair and the second artificial hair is 50. : It was set to 70:30 instead of 50.
- Comparative Example 7 In Comparative Example 7, the nylon 6 (PA6) fiber prepared in the first example was used as the first artificial hair 3A. A fiber having a single-layer structure made of nylon 6 (PA6) and nylon MXD6 (PAMXD6) produced in the first example was used as the second artificial hair 3B. The first artificial hair 3A and the second artificial hair 3B were mixed at a ratio of 85:15 to prepare an artificial hair bundle.
- PA6 nylon 6
- PAMXD6 nylon MXD6
- Comparative Example 8 In Comparative Example 8, the nylon (PA6) fiber produced in the first example was used as the first artificial hair 3A. As the second artificial hair 3B, the sheath-core structure fiber produced in the second example was used. The first artificial hair 3A and the second artificial hair 3B were mixed at a ratio of 15:85 to produce an artificial hair bundle.
- Comparative Example 9 In Comparative Example 9, the nylon 6 (PA6) fiber produced in the first example was used as the first artificial hair 3A. As the second artificial hair 3B, the sheath-core structure fiber produced in the second example was used. The first artificial hair 3A and the second artificial hair 3B were mixed at a ratio of 85:15 to prepare an artificial hair bundle.
- PA6 nylon 6
- Comparative Example 10 nylon 6 (PA6) fibers produced in the first example were used as the first artificial hair 3A.
- the second artificial hair 3B the sea-island structure fiber produced in the third example was used.
- the first artificial hair 3A and the second artificial hair 3B were mixed at a ratio of 15:85 to produce an artificial hair bundle.
- Comparative Example 11 nylon 6 (PA6) fibers produced in the first example were used as the first artificial hair 3A.
- the bending stiffness value of the hair prepared and prepared in each example and comparative example was measured.
- a single hair bending tester product name: KES-FB2-SH, manufactured by Kato Tech Co., Ltd.
- KES-FB2-SH manufactured by Kato Tech Co., Ltd.
- Kawabata method was used for one hair under the measurement conditions shown below.
- the bending stiffness value was obtained from the bending moment / curvature change.
- the measurement was performed in an environment with a temperature of 20 ° C. and a humidity of 40%.
- Table 1 shows the measurement results of the bending stiffness values of the examples and comparative examples. Table 1 also shows the conditions for producing the first and second artificial hairs. Table 1 also shows the values converted to a cross-sectional diameter of 80 ⁇ m, in addition to the actual measurement values of the bending stiffness values of the hairs of the examples and comparative examples. The difference between the bending stiffness value of the first artificial hair and the bending stiffness value of the second artificial hair was determined. The numerical value conversion at a cross-sectional diameter of 80 ⁇ m is as follows. Since the bending stiffness value is said to be proportional to the fourth power of the fiber radius, it is generally considered that the bending stiffness and the fiber thickness are in a proportional relationship.
- the bending stiffness measurement value with a tester was actually divided by the cross-sectional area calculated from the actually measured hair diameter to determine the unit area (mm 2 ), and the value obtained by multiplying the cross-sectional area when the hair diameter was 80 ⁇ m. .
- the difference in bending stiffness value between the first artificial hair and the second artificial hair was as follows.
- Example 1 Example 4, Example 5, Comparative Example 6 and Comparative Example 7, the difference in bending stiffness value between the first artificial hair and the second artificial hair is 1.93 ⁇ 10 ⁇ 5 N ⁇ cm. 2 / book.
- Example 2 Example 6, Example 7, Comparative Example 8 and Comparative Example 9, the difference in bending stiffness value between the first artificial hair and the second artificial hair was 1.54 ⁇ 10 ⁇ 5 N ⁇ cm. 2 / book.
- Example 3 Example 8, Example 9, Comparative Example 10 and Comparative Example 11
- the difference in bending stiffness value between the first artificial hair and the second artificial hair was 1.75 ⁇ 10 ⁇ 5 N ⁇ cm. 2 / book.
- Comparative Example 2 the difference in bending stiffness value between the first artificial hair and the second artificial hair was 1.54 ⁇ 10 ⁇ 5 N ⁇ cm 2 / bar. In Comparative Example 3, the difference in bending stiffness value between the first artificial hair and the second artificial hair was 1.35 ⁇ 10 ⁇ 5 N ⁇ cm 2 / bar. In Comparative Example 4, the difference in bending stiffness value between the first artificial hair and the second artificial hair was 2.11 ⁇ 10 ⁇ 5 N ⁇ cm 2 / bar. In Comparative Example 5, the difference in flexural rigidity between the first artificial hair and the second artificial hair was 4.96 ⁇ 10 ⁇ 5 N ⁇ cm 2 / bar.
- FIG. 7 is a diagram schematically showing the flexibility evaluation procedure.
- the hair 62 bound to the virtual wig base 61 is set and the curl height is measured.
- the curl height after removing the loading plate 63 and allowing it to stand for 1 minute was measured as shown in FIG. 7C.
- the height of the curl before the load is applied is h1
- the height of the curl after the load is applied as shown in FIG. 7 (C) is h1 ′, (h1 ′ / h1)
- the recovery rate was calculated from x100, and the higher the numerical value, the harder it was and the less flexible it was.
- FIG. 8 is a diagram schematically showing an evaluation procedure for style setting.
- the hair 62 bound to the virtual wig base 61 is stretched with a steamer to measure the curl height, and the comb 64 is inserted into the hair 62 as shown in FIG. 8 (B).
- the comb 64 is rotated halfway and maintained for 10 seconds, then the comb 64 is removed and left for 10 seconds, as shown in FIG. 8 (D).
- the curl height was measured.
- the curl height in the state shown in FIG. 8 (A) is h2
- the curl height in the state shown in FIG. 6 (D) is h2 ′, from (h2′ ⁇ h2) / h2 ⁇ 100
- the height-up rate was calculated, and the higher the value, the easier it was to change the style with a comb, etc.
- FIG. 9 is a diagram schematically showing an evaluation procedure for style retention.
- the curl height is measured after setting the hair 62 bound to the virtual wig base 61 as shown in FIG. 9 (A), and then the heel needle 65 is inserted into the center of the width of the hair 62 as shown in FIG. 9 (B). Then, the hair 62 was hooked, and then the height after the heel needle 65 was pulled up vertically until the hair 62 was detached from the heel needle 65 as shown in FIGS.
- the curl height in the state shown in FIG. 9A is h3
- the curl height in the state shown in FIG. 9D is h3 ′
- the up rate was calculated, and the higher the number, the more likely it was that the style would collapse due to external factors.
- Convergence means a state in which hairs stick together and aggregate when the hair is wet. In the case of natural hair, when moisture is removed, the hairs are separated from each other and the aggregation state is eliminated. On the other hand, in the case of a fiber made of a synthetic resin, from the bundled state, even if moisture is removed, the bundled state is not canceled and the state is maintained, or even when there is no moisture, the fiber aggregates. is there. Due to this phenomenon of convergence, when the same number of hairs are arranged side by side, the width of the entire bundle of hairs is reduced in the state of being focused, and the width of the entire hair bundle is increased in the state of not being focused. Therefore, since focusing is likely to occur when the humidity is high, the hair was left in a high humidity environment to generate focusing, and then moved to a low humidity environment to measure the degree of convergence cancellation.
- FIG. 10 is a diagram schematically showing a convergence evaluation method.
- the swatch 60 is set in an environment of a temperature of 25 ° C. and a humidity of 50 ⁇ 5%. Then, move in an environment of temperature 25 ° C. and humidity 80 ⁇ 5% and leave for 30 minutes. Then, as shown in FIG. 10 (B), the hairs 62 are entangled with each other. After that, when the environment is returned to an environment of temperature 25 ° C. and humidity 50 ⁇ 5%, the convergence state almost disappears as shown in FIG. 10 (C) and the convergence state does not disappear as shown in FIG. 10 (D). Sometimes it is held.
- the convergence was quantified by determining the widths W1, W2, W3, and W4 of the hair bundle based on the position of the curl starting point in each environment.
- the width W2 shown in FIG. 10B is smaller than the width W1 shown in FIG.
- the width W3 shown in FIG. 10C and the width W4 shown in FIG. 10D tend to be larger than the width W2 shown in FIG. Therefore, the convergence was quantified from the relationship between the width W1 and the width W3 and the relationship between the width W1 and the width W4.
- the hair 62 implanted in the virtual wig base 61 is set and left for 30 minutes in an environment of a temperature of 25 ° C. and a humidity of 80 ⁇ 5%.
- the hair bundle width W2 was measured at the position of the starting point where the curl of the hair 62 starts. After that, after moving in an environment of temperature 25 ° C. and humidity 50 ⁇ 5% and leaving for 30 minutes, the hair is combed once to temporarily cancel the converging state, and the hair bundle width at the position where the hair curls starts. W3 and W4 are measured. The enlargement ratio was calculated as (W3-W2) / W2 ⁇ 100 or (W4-W2) / W2 ⁇ 100. It was judged that the convergence was low because the higher the value, the more hair was scattered.
- the curl setability was evaluated as follows. As shown in FIG. 5 (A), a large number of hair materials 31 cut to a length of 20 cm as shown in FIG. Is sewn with a sewing thread 32 to align with a hair-like hair bundle 30 having a width of only 13 to 15 cm, and the hair bundle 30 is wetted by immersing it in water. Thereafter, as shown in FIG. As shown, the hair bundle 30 is wound around an aluminum pipe 33 having a diameter of 25 mm, a non-woven fabric made of nylon is wound thereon, and heat treatment is performed at 180 ° C. for 1 hour, and the curl diameter of the hair in the curled hair bundle is determined. It was measured. It was judged that the curl setting property was better as the measured curl diameter value was closer to the aluminum pipe diameter of 25 mm.
- the evaluation of curl retention was performed as follows.
- the curl diameter F1 was measured in an environment of a temperature of 25 ° C. and a humidity of 65 ⁇ 5% by using the hair bundle 30 used for the evaluation of curl setting property and provided with curl, and the shampoo and dryer were used.
- the curl diameter F2 of the hair after 50 times of drying and brushing was measured. From each measured value, the elongation rate of the curl diameter was determined by the formula (F2-F1) / F1 ⁇ 100, and the larger the numerical value of the elongation rate of the curl diameter, the worse the retention of the curl diameter.
- Table 2 is a chart showing the evaluation results of Examples 1 to 9 and Comparative Examples 1 to 11. Table 2 also shows the material and structure of the first artificial hair and the second artificial hair, as well as the value of the difference in bending stiffness between the first artificial hair and the second artificial hair. .
- FIG. 11 to 16 are graphs in which the values of the evaluation items are arranged in ascending order, and FIG. 11 is a recovery rate of the hair bundle related to flexibility, FIG. 12 is a hair bundle height-up rate related to the style setting property, FIG. 13 is a hair bundle height increase rate related to style retention, FIG. 14 is a hair bundle width expansion rate related to convergence, FIG. 15 is a hair bundle curl diameter related to curl setting, and FIG. 16 is related to curl diameter elongation related to curl retention. There are things.
- or Example 9 is the value (48.8%) in Comparative Examples 1, 2, 3, 9, 11, and 7. 49.7%, 50.5%, 51.0%, 51.3%, 51.5%) and the values in Comparative Examples 4, 8, 10, 6, 5 (65.1%, 65.6%) 65.9%, 66.4%, 72.3%).
- the artificial hair bundles in Examples 1 to 9 are harder and more rigid than the artificial hair bundle consisting of only one type of polyamide fiber as in Comparative Example 1, and are polyesters other than polyamide as in Comparative Example 5. It was found that there was softness than the artificial hair bundle mixed with the system fibers.
- the recovery rate of the artificial hair bundle is preferably the combination of the first artificial hair and the second artificial hair shown in Examples 1 to 9, without losing the flexibility unique to the polyamide fiber. It was found that moderate flexibility was given.
- the values in Examples 1 to 9 are the values in Comparative Examples 1, 2, 5, 9, 11, 7, and 3 (20.6). 21.1%, 23.0%, 24.2%, 24.3%, 24.5%, 25.1%) and the values in Comparative Examples 4, 8, 10, 6 (46.8%, 47.4%, 48.1%, 48.8%). If the artificial hair bundle height-up rate is small, even if an attempt is made to set the style with a brush or comb, the change in the movement of the hair is small, making it difficult to exhibit the desired style, which is not preferable. On the other hand, if the artificial hair bundle height-up rate is high, the hair changes greatly due to slight brushing, and fine adjustment becomes difficult.
- the combination of the first artificial hair and the second artificial hair shown in Examples 1 to 9 is preferable as the height-up rate of the artificial hair bundle. It turned out that it becomes easier to set a desired hairstyle than the artificial hair bundle comprised with the polyamide fiber of this.
- the height increase rate of the hair bundle relating to the style retention is in ascending order in which the comparative examples are arranged after the set of Examples 1 to 9. Therefore, it was found that the styles in the respective examples were hard to be broken and held easily after the style setting as compared with the series of comparative examples.
- the hair bundle width expansion rate related to the convergence is higher than the results of Comparative Examples 1 to 3 and Comparative Examples 6 to 11, so that the first artificial It was found that when the second artificial hair is composed of a material different from the polyamide resin constituting the hair, and the second artificial hair is mixed with the first artificial hair so as to satisfy the predetermined condition, the convergence property can be improved.
- the hair bundle width expansion rate was slightly higher than in any of the Examples. This is probably because the second artificial hair was made of PET fibers.
- Comparative Example 4 the same material as in Example 1, Example 4 and Example 5 is used as the second artificial hair, but the mixing ratio of the materials is nylon MXD6 (PAMXD6) and nylon 6 (PA6).
- the ratio is 85:15, and the ratio of nylon MXD6 is increased to increase the difference in flexural rigidity between the first artificial hair and the second artificial hair.
- the object of the present invention is achieved when comprehensive judgment is made from the evaluation results other than the convergence property, in particular, the results of the hair bundle height-up rate related to the recovery rate, the style setting property and the style retention property. Not suitable for.
- the value of the curl diameter of each example is aluminum pipe compared to each comparative example.
- the diameter is close to 25 mm. Therefore, in Examples 1 to 9, it was found that the curl setting property was good.
- the curl diameter elongation rate related to the curl retention is similar to the results related to the hair bundle curl diameter, and comparative examples are arranged after each example.
- the curl diameter elongation of Example 9 is small. Therefore, in Examples 1 to 9, it was found that the curl diameter retention was good.
- the comparative example 5 has the highest improvement efficiency based on the result of the convergence evaluated by the hair bundle width expansion rate.
- the recovery rate evaluated by the flexibility High numerical value and poor flexibility. That is, in a certain comparative example, the specific evaluation exceeded the working example, but when judged comprehensively, it was found that any working example was superior to the comparative example.
- the combination of the first artificial hair and the second artificial hair includes the first artificial hair having a single layer structure of nylon 6 from each example shown in Table 1.
- the second artificial hair a single layer in which nylon 6 and nylon MXD6 are mixed, a sheath core structure in which the sheath material is nylon 6 and the core material is nylon MXD6, and the island material is nylon. It has been found that it is preferable to have a sea-island structure with MXD6 and nylon 6 as the base material.
- the difference in bending stiffness value between the first artificial hair and the second artificial hair was 1.54 ⁇ 10 ⁇ 5 Ncm 2 / bar or more. 75 ⁇ 10 ⁇ 5 Ncm 2 / piece or less is preferable, and the mixing ratio of the first artificial hair and the second artificial hair is mixed at 50:50 to obtain an artificial hair bundle. It has been found that the artificial hair and the second artificial hair are preferably attached to the wig base so that they are evenly distributed per unit area.
- Example 1 When Example 1, Example 4 and Example 5 are compared with Comparative Example 6 and Comparative Example 7, all of them employ nylon 6 single-layer structure fibers as the first artificial hair, and nylon MXD6 and nylon 6 Is used as the second artificial hair, and the mixing ratio of the first artificial hair and the second artificial hair is 30: 70-60: 40 was found to be preferred.
- Example 2 and Example 7, and Comparative Example 8 and Comparative Example 9 are compared, all adopt nylon 6 single-layer structure fibers as the first artificial hair, and use the core material.
- Nylon MXD6 a sheath material made of nylon 6, and a sheath core structure fiber in which the weight ratio of the core material to the sheath material is 75:25 is adopted as the second artificial hair.
- the mixing ratio of the first artificial hair and the second artificial hair is preferably 30:70 to 60:40.
- Example 3 Example 8 and Example 9, and Comparative Example 10 and Comparative Example 11 are compared, in each case, the first artificial hair adopts a nylon 6 single layer structure fiber, and the island material is used.
- Nylon MXD6 the sea material (base material) is nylon 6, and the sea island structure fiber with a weight ratio of 65:35 is used as the second artificial hair.
- the mixing ratio of the first artificial hair and the second artificial hair is preferably 30:70 to 60:40.
- Example 10 as the first artificial hair 3A, a fiber of nylon 66 (PA66) having a single-layer structure with a perfect cross-sectional shape was produced. Specifically, nylon 66 (UBE nylon 6,62020B manufactured by Ube Industries) is used as a raw material chip, and each of the first to fourth stretching rollers 15, 17, 19, 22 in FIG. The roller speed was adjusted. As a result, the fiber cross-sectional diameter was 83.1 ⁇ m.
- PA6 nylon 6
- PAMXD6 nylon MXD6
- Example 11 the nylon 66 fibers produced in Example 10 were used as the first artificial hair 3A.
- As the second artificial hair 3B a fiber having a sea-island structure prepared in Example 3 in which the sea part is nylon MXD6 (PAMXD6) and the island part is nylon 6 (PA6) was used.
- the first artificial hair 3A and the second artificial hair 3B were mixed at a ratio of 50:50 to produce an artificial hair bundle.
- Example 12 as the first artificial hair 3A, a nylon 610 (PA610) fiber having a single-layer structure with a perfect cross-sectional shape was produced. Specifically, nylon 610 (Amilan CM2001 manufactured by Toray Industries, Inc.) is used as a raw material chip, and the speeds of the first to fourth stretching rollers 15, 17, 19, and 22 in FIG. 4A are adjusted. did. As a result, the fiber cross-sectional diameter was 82.8 ⁇ m. As the second artificial hair 3B, a fiber having a single-layer structure made of nylon 6 (PA6) and nylon MXD6 (PAMXD6) produced in Example 1 was used. In Example 12, the artificial hair bundle was prepared by mixing the first artificial hair 3A and the second artificial hair 3B at a ratio of 50:50.
- PA6 nylon 610
- PAMXD6 nylon MXD6
- Example 13 as the first artificial hair 3A, fibers of nylon 612 (PA612) and nylon 46 (PA46) having a perfect circular cross section and a single layer structure were produced. Specifically, as a raw material chip, a mixture of nylon 612 (DuPont Zytel 158) chip and nylon 46 (DSM Japan TS300) in a mass ratio of 70:30 is used. The speeds of the first stretching roller to the fourth stretching rollers 15, 17, 19, and 22 were adjusted. As a result, the fiber cross-sectional diameter was 82.5 ⁇ m. As the second artificial hair 3B, a fiber having a single-layer structure made of nylon 6 (PA6) and nylon MXD6 (PAMXD6) produced in Example 1 was used. In Example 13, the artificial hair bundle was prepared by mixing the first artificial hair 3A and the second artificial hair 3B in a ratio of 50:50.
- PA6 nylon 612
- PA46 nylon 46
- Example 14 as the first artificial hair 3A, fibers of nylon 612 (PA612) and nylon 46 (PA46) having a perfect circular cross section and a single layer structure were produced. Specifically, as a raw material chip, a mixture of nylon 612 (DuPont Zytel 158) chip and nylon 46 (DSM Japan TS300) at a mass ratio of 80:20 is used. The speeds of the first stretching roller to the fourth stretching rollers 15, 17, 19, and 22 were adjusted. As a result, the fiber cross-sectional diameter was 83.0 ⁇ m. As the 2nd artificial hair 3B, the fiber of the sheath core structure produced in Example 2 was used. In Example 14, an artificial hair bundle was prepared by mixing the first artificial hair 3A and the second artificial hair 3B in a ratio of 50:50.
- Example 15 as the first artificial hair 3A, fibers having a single-layer structure of nylon 612 (PA612) and nylon 46 (PA46) prepared in Example 14 were used. As the second artificial hair 3B, the sea-island structure fiber produced in Example 3 was used. In Example 15, the first artificial hair 3A and the second artificial hair 3B were mixed at a ratio of 50:50 to produce an artificial hair bundle.
- PA612 nylon 612
- PA46 nylon 46
- Example 16 as the first artificial hair 3A, a fiber of nylon 612 (PA612) having a single-layer structure with a perfect cross-sectional shape was produced. Specifically, a nylon 612 (DuPont Zytel 158) chip is used as a raw material chip, and the speeds of the first to fourth stretching rollers 15, 17, 19, and 22 in FIG. 4A are adjusted. did. As a result, the fiber cross-sectional diameter was 80.3 ⁇ m. As the second artificial hair 3B, a fiber having a perfect circle and a sheath-core layer structure was produced.
- PA612 nylon 612 having a single-layer structure with a perfect cross-sectional shape
- a nylon MXD6 (MX nylon PAMXD6 manufactured by Mitsubishi Gas Chemical Co., Inc.) chip is used as the raw material chip for the core
- a nylon 6 (NOVAMID1020 manufactured by Mitsubishi Engineering Plastics) chip is used as the raw material chip for the sheath.
- the weight ratio of the nylon 6 tip to the nylon MXD6 tip was 45:55.
- the cross-sectional diameter of the fiber was 82.2 ⁇ m.
- the hair diameter was 1, the core portion was 0.70.
- the artificial hair bundle was prepared by mixing the first artificial hair 3A and the second artificial hair 3B at a ratio of 50:50.
- Example 10 to Example 16 The bending stiffness value of hair newly prepared and prepared in Example 10 to Example 16 was measured in the same manner as described above. The measurement conditions were the same as described above. The measurement result of the bending stiffness value will be described. In addition to the measurement results of Examples 10 to 16, Table 3 also shows values converted to a cross-sectional diameter of 80 ⁇ m, conditions for producing the first and second artificial hairs, and the like.
- each bending stiffness value is 3.64 ⁇ 10 ⁇ 5 N ⁇ cm 2 / bar, 3 .67 ⁇ 10 ⁇ 5 N ⁇ cm 2 / line, 3.40 ⁇ 10 ⁇ 5 N ⁇ cm 2 / line, 3.38 ⁇ 10 ⁇ 5 N ⁇ cm 2 / line, 3.02 ⁇ 10 ⁇ 5 N ⁇ line cm 2 / book.
- the second artificial hair was newly prepared in Example 16, and the bending stiffness value was 5.01 ⁇ 10 ⁇ 5 N ⁇ cm 2 / bar.
- the difference in bending stiffness value (converted value) between the first artificial hair and the second artificial hair was as follows.
- the difference in bending stiffness value between the first artificial hair and the second artificial hair is as follows: Example 10, Example 11, Example 12, Example 13, Example 14, Example 15, Example 16. 1.69 ⁇ 10 ⁇ 5 N ⁇ cm 2 / line, 1.51 ⁇ 10 ⁇ 5 N ⁇ cm 2 / line, 1.64 ⁇ 10 ⁇ 5 N ⁇ cm 2 / line, 1.86 ⁇ 10 ⁇ 5 N ⁇ Cm 2 / line, 1.53 ⁇ 10 ⁇ 5 N ⁇ cm 2 / line, 1.74 ⁇ 10 ⁇ 5 N ⁇ cm 2 / line, 1.74 ⁇ 10 ⁇ 5 N ⁇ cm 2 / line.
- Table 4 is a chart showing the evaluation results of Examples 10 to 16. Table 4 also shows the difference in bending rigidity between the first artificial hair and the second artificial hair, in addition to the materials and structures of the first artificial hair and the second artificial hair. .
- the artificial hair bundles in Examples 10 to 16 were evaluated in the same manner as in the above Examples and Comparative Examples.
- These values are between the value of 51.5% of Comparative Example 7 and the value of 65.1% of Comparative Example 4 as shown in FIG.
- the hair bundle height-up rate with respect to style retention was 19%, 19.5%, 19.6%, 20.1%, 19.7%, 19.0%, 16 in the order of Examples 10 to 16. 2%. As shown in FIG. 13, these values are lower than the value 26.2% of Comparative Example 1, and Examples 10 to 16 are similar to Examples 1 to 9 in comparison with a series of comparative examples. After setting the style, it was found that the style is hard to break and is easy to hold.
- the hair bundle width expansion rate related to the converging property is 34.4%, 34.1%, 34.9%, 35.4%, 35.2%, 34.7%, 35 in the order of Examples 10 to 16. It was 1%. As shown in FIG. 14, these values are between the value 27.8% of Comparative Example 3 and the value 36.0 of Comparative Example 5, and Examples 10 to 16 are also Examples 1 to 9.
- the second artificial hair is composed of a material different from the polyamide resin constituting the first artificial hair as a combination of the first artificial hair and the second artificial hair. It was found that the convergence can be improved by mixing the second artificial hair with one artificial hair.
- the hair bundle curl diameter concerning the curl setting property was 31.2 mm, 31.4 mm, 30.7 mm, 30.5 mm, 31.9 mm, 31.8 mm, 30.6 mm in the order of Examples 10 to 16. As shown in FIG. 15, these values are smaller than the value 36.6 mm of Comparative Example 5 and the curl diameter value is in a range close to the diameter of the aluminum pipe (about 31 mm to 35 mm). From 16 to 16, it was found that the curl setting property was good.
- the first artificial hair is made of an aliphatic polyamide resin.
- the bending stiffness value is 3.00 ⁇ 10 ⁇ 5 to 3.42 ⁇ 10 ⁇ 5 N ⁇ cm 2 / bar
- the first artificial hair is nylon 6, nylon 66, nylon 610, nylon 612, etc.
- the second artificial hair is composed of an aliphatic polyamide resin and a semi-aromatic polyamide resin, and it can be said that the second artificial hair may have a composite structure such as a sheath core or a sea island, instead of a single layer structure.
- the first artificial hair is composed of aliphatic polyamide fibers
- the second artificial hair is different from the first artificial hair, that is, a single layer of aliphatic polyamide and semi-aromatic polyamide
- the basic hair properties of the polyamide fibers that is, flexibility and high heat setting properties
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Abstract
Description
すなわち、第1に、異素材の繊維を混合させることでポリアミド特有の柔軟性が失われて風合いが変化すること、第2に、異素材の混合により溶融温度や軟化温度が異なるため、ヒーターでカール付けを行うと、適正温度以外では縮れが発生すること、第3に、カールの保持性に劣るためスタイルが崩れやすいこと、さらに第4に、素材の吸水性の違いにより付与したカールの挙動が異なることで不自然な外観になり易いことなど、別の課題が生じる。
上記構成において、第2の人工毛髪は、脂肪族ポリアミド樹脂と半芳香族ポリアミド樹脂とが単層構造、鞘芯構造及び海島構造の組み合わせの何れかでなっていることが好ましい。
上記構成において、第2の人工毛髪は鞘芯構造を有し、芯部が半芳香族ポリアミド樹脂でなり、鞘部が脂肪族ポリアミド樹脂でなることが好ましい。
上記構成において、第2の人工毛髪は、好ましくは、海部が脂肪族ポリアミド樹脂、島部が半芳香族ポリアミド樹脂でなる海島構造を有する。
上記構成において、第1の人工毛髪及び第2の人工毛髪は、何れも、温度20℃、湿度40%の測定条件下において、直径80μmで換算して、7.8×10-5N・cm2/本以下の曲げ剛性値を有することが好ましい。
上記構成において、第1の人工毛髪と第2の人工毛髪との曲げ剛性値の差は、1.5~2.0×10-5N・cm2/本であることが好ましい。
2,41:かつらベース
3,4,5,6,43,62:人工毛髪(毛髪)
3A:第1の人工毛髪
3B:第2の人工毛髪
5a:芯部
5b:鞘部
6a:海部
6b:島部
7a:シリンダー
7b:ノズル
7c、7d:樹脂
7e:開孔
11,26A,26B:溶融槽
12,27A、27B:ギアポンプ
13,28:吐出部
14:温水浴
15:第1延伸ローラ
16:第1乾熱槽
17:第2延伸ローラ
18:第2乾熱槽
19:第3延伸ローラ
20:第3乾熱槽
21:オイリング装置
22:第4延伸ローラ
23:ブラスト機
24:巻取機
30:毛束
31:毛髪
32:縫糸
33:アルミパイプ
41:かつらベース
42:鉤針
42A:先端鉤部
43:毛髪
51:フィラメント
60:スワッチ
61:仮想かつらベース
62:毛髪
63:負荷用板
64:櫛
図1は、本発明の実施形態に係るかつらを模式的に示す図である。本発明の実施形態に係るかつら1は、頭部形状に形成されたかつらベース2と、このかつらベース2に取り付けられた毛髪(「人工毛髪」ともいう。)3と、を有する。図1ではかつらベース2に数本の毛髪3しか図示していないが、実際にはかつらベース2の全体に所定の密度で取り付けられている。
毛髪3は、種類の異なるポリアミド樹脂を素材とした複数の人工毛髪3A、3Bとが所定の割合で混合されている。この実施形態では、脂肪族ポリアミド樹脂でなる第1の人工毛髪3Aと、脂肪族ポリアミド樹脂と半芳香族ポリアミド樹脂とを一体化してなる第2の人工毛髪3Bと、を所定の割合で混ぜ合わせてかつらベース2に取り付けられている。第1の人工毛髪3A及び第2の人工毛髪3Bの何れもポリアミド樹脂に属するものであるので、ポリアミド樹脂の基本的な性質が毛髪毎に変らない。よって、第1の人工毛髪3A及び第2の人工毛髪3Bとしてかつらベース2に取り付ける前に、カールを毛材に付与する際の熱によっても縮みが生じ難い。
毛髪3の一つとして例えば図2(A)に模式的に示すように単層構造を有する毛髪4が挙げられ、毛髪3は単一の成分又は複数の成分の何れから成っていてもよい。
毛髪3の一つとして、図2(B)に模式的に示すように例えば鞘芯構造を有する毛髪5が挙げられ、毛髪5は芯部5aの周りに鞘部5bを有し、芯部5aと鞘部5bとがそれぞれ別の素材でなっている。芯部5aの素材、鞘部5bの素材は何れも、単一の成分でも、複数の成分でもよい。
毛髪3の一つとして例えば図2(C)に模式的に示すように海島構造を有する毛髪6が挙げられる。毛髪6は、海部6aと複数の島部6bとが遊離状に点在してなる径断面海島構造を有する。この海島構造はシリンダー構造とも呼ばれる。
もちろん、毛髪3は、鞘芯構造、海島構造以外の複合構造、例えばラメラ構造を有してもよいが、曲げ剛性値及びカール特性などの毛髪の性質を考慮すると、鞘芯構造や海島構造が好ましい。
人工毛髪は合成繊維を所定長にカットして作製される。合成繊維は一般的に熱可塑性樹脂を原料とする。熱可塑性樹脂を加熱すると固体から液体状に変化する性質を利用して繊維に成形する。熱可塑性樹脂から繊維への成形は、紡糸と延伸の2工程を経て行う。紡糸工程と延伸工程とは連続して行っても、別々に行ってもよい。原料や繊維の太さ及び強度に応じて選択する。
紡糸工程では、ペレット状の熱可塑性樹脂を加熱して溶解、即ち溶融したものをノズルに圧力を加えて送り込む。すると、樹脂がノズルの外側に設けた開孔から押し出されて繊維状となる。その際、ノズルに多数の開孔を設け、一度に10~20本の繊維を押し出してもよい。
延伸工程では、延伸ローラの回転により一定のテンションを掛けながら連続的に熱を加えて引き延ばしながら繊維を巻き取る。これにより、紡糸された繊維を所望の太さや強度とすることができる。延伸の際においても、紡糸と同様、一度に紡糸済の繊維数十本を引き延ばしてもよい。
図4は、人工毛髪の製造システムを概念的に示し、(A)は単層構造を有する人工毛髪の製造システム、(B)は鞘芯構造を有する人工毛髪の製造システムの概念図である。
単層構造からなる人工毛髪の場合、図4(A)に示す溶融紡糸及び延伸装置によって製造される。
具体的には、ポリアミド樹脂チップ及び顔料を所定量混練したポリアミド樹脂チップを溶融槽11に投入し、溶融した樹脂をギアポンプ12で口径が0.3~1.0mmのノズルをセットした吐出部13の送入口金に送出し、排出口金を出た繊維状の樹脂を40~80℃の温水浴14を通過させる。その後、第1延伸ローラ15と第1乾熱槽16を通過させて延伸を行い、第2延伸ローラ17及び第2乾熱槽18を通してさらに延伸を行い、第3延伸ローラ19及び第3乾熱槽20を通して繊維の寸法安定のための熱処理、つまりアニーリングをした後、静電気防止のためのオイリング装置21に通す。最終工程として、第4延伸ローラ22及びブラスト機23中で繊維表面に微細なアルミナ粉を吹き付けて繊維表面を粗面化した後に巻取機24に巻き取る。
この工程により、延伸倍率を3.5~5.5の範囲で第1乃至第4の延伸ローラ15、17、19、22の速度を調整し、かつ第1乃至第3の乾熱槽16、18、20の温度を150~180℃の範囲で調整することにより、繊維の直径が80μm程度前後で所定の曲げ剛性値を有するポリアミド繊維を得ることができる。
具体的には、第1の成分であるポリアミド樹脂チップ及び顔料を所定量混練したポリアミド樹脂チップを溶融槽26Aに投入し、第2の成分であるポリアミド樹脂チップ及び顔料を所定量混練したポリアミド樹脂チップを溶融槽26Bに投入し、溶融した第1の成分樹脂をギアポンプ27Aで吐出部28の第1の送入口金に送出し、溶融した第2の成分樹脂をギアポンプ27Bで吐出部28の第2の挿入口金に送出し、所望の複合構造が得られかつ口径が0.3~1.0mmのノズルを有する送出口金から繊維状の樹脂を送り出す。それ以降は、単層構造を有する人工毛髪の場合と同様の工程を行う。
先ず、かつらベースを次の手順で作製する。
かつらベースが合成樹脂製のシート材を素材とする場合、かつら装着者における頭部形状雄型の石膏の上に有機溶剤で溶解した樹脂溶液を塗布して乾燥後に石膏から樹脂を外して頭部形状に成形する。またはシート状の合成樹脂を石膏の上から被せて固定して加熱した後に、石膏から樹脂を外して頭部形状に成形する。この時に使用される樹脂としては、柔軟性があるポリウレタンやシリコーンなどの熱可塑性エラストマーが良い。
かつらベースがネット地を素材とする場合、石膏の上にネットを張って固定して、その上から石膏の形状が付き易く、保持性を良好にするためにウレタンを有機溶剤で溶解した樹脂溶液を塗布した後に乾燥させて、石膏から樹脂を外して頭部形状に成形する。
図6は人工毛髪をかつらベースに取り付ける工程を模式的に示す図である。なお、図6では人工皮膚のかつらベース41やネットベースを構成するフィラメント51は部分的にしか示していない。
かつらベースが人工皮膚でなる場合、図6(A)で示すようにかつらベース41に鉤針42を挿通し、図6(B)に示すように鉤針の先端鉤部42Aにループ状の毛髪43を引っ掛け鉤針42旋回してループとの係合が解けない状態で、先端鉤部42Aを毛髪43のループ解放端部側に引っ掛けてループ中から抜き出すことで図6(C)に示すようにかつらベース41に毛髪43を結び付ける。
かつらベースがネットの場合には図6(D)に示すようにネットを構成するフィラメント51に鉤針42を挿通して、図6(E)に示すように鉤針の先端鉤部42Aにループ状の毛髪43を引っ掛け鉤針42を旋回してループとの係合が解けない状態で、先端鉤部42Aを毛髪43のループ解放端部側に引っ掛けてループ中から抜き出すことで図6(F)に示すようにフィラメント51に毛髪43を結び付ける。
何れの場合も毛髪43の結び方はかつらの製造で行われている公知の方法で行う。
本発明では、第1の人工毛髪と第2の人工毛髪とを上記の混合割合で、かつらベースの全面に満遍なく植設していけばよい。
さらに、かつらベースの特定部位のみを特にボリューム感を出したいときや、特定のカールを保持させてヘアスタイルを長期に保持したい場合などに、かつらベースの特定の領域を指定することで、第1の人工毛髪と第2の人工毛髪との上記した混合割合の範囲外とすることも可能であり、このようなアレンジも本発明の範囲内である。例えば、頭頂部や髪の分け目の領域のみを特に立ち上がらせてボリューム感を出したいときは、第1の人工毛髪と第2の人工毛髪との割合を質量比で例えば5~20対95~80に調整するなど、適宜に調整することができる。この場合であっても、かつらベース全体に植設する第1の人工毛髪と第2の人工毛髪との混合割合は、上記のように、質量比で、30/70~60/40となる範囲で混合するのが好ましい。このような混合割合とすることで、頭頂部や髪の分け目などの局部的な領域が所望のカール付けと共に所望のボリューム感を呈し得るともに、かつら全体のカールの保持性が高くヘアスタイルが崩れ難い。また、ポリアミド繊維の持つ柔軟性を失うことなくボリューム感を向上することができ、作製可能なヘアスタイルの多様性が実現することができる。さらに、混合する人工毛髪それぞれの組成が異なっていることで異素材からなる繊維を混合した場合と同様に集束性が改善され、自然な外観が生じ、コーミングなどの扱いも容易である。
以上の手順により、かつらが完成する。
何れの実施例及び比較例においても、直径が大体80μm前後になるように製造条件を設定して第1の人工毛髪3A、第2の人工毛髪3Bを準備し、第1、第2の人工毛髪3A,3Bの各曲げ剛性値を測定した。第1の人工毛髪3Aと第2の人工毛髪3Bとを各実施例及び比較例で異なる割合で混ぜて人工毛髪束を作製し、予め直径25mmのアルミパイプに長さが20cmの毛束を捲いて加熱処理によりカールを付与し、長さ10cmを有するように毛髪の束を半折にし、それぞれの毛髪を一本ずつ5cm×5cmのネット地に結着することによりスワッチを作製した。そのスワッチを用いて毛髪としての特性評価を行った。
第2の人工毛髪3Bとして断面形状が真円の単層構造の繊維を作製した。詳細には、原料チップとして、三菱ガス化学社製でグレードMXナイロンのナイロンMXD6(PAMXD6)のチップと三菱エンジニアプラスチック社製でグレードNOVAMID1020のナイロン6(PA6)のチップとを重量比率で70:30で混ぜたものを用い、図4(A)における第1延伸ローラ乃至第4延伸ローラ15、17、19、22の各ローラの速度を調整した。繊維の断面直径は82.1μmとなった。
実施例1では、第1の人工毛髪3Aと第2の人工毛髪3Bとを50:50の割合で混合して人工毛髪束を作製した。
第2の人工毛髪として、断面形状が真円で鞘芯構造を有する繊維を作製した。詳細には、芯となる部分の原料チップとして三菱ガス化学社製でグレードMXナイロンのナイロンMXD6(PAMXD6)のチップを用い、鞘となる部分の原料チップとして三菱エンジニアプラスチック社製でグレードNOVAMID1020のナイロン6(PA6)のチップを用い、ナイロンMXD6のチップとナイロン6のチップとの重量比率を72:25とした。図4(B)の製造システムを用いて第1延伸ローラ乃至第4延伸ローラ15、17、19、22の各ローラの速度を調整した結果、繊維の断面直径が81.6μmとなった。ここで、芯部の直径は72.9μmであったので、第2の人工毛髪の断面寸法は毛髪直径1に対し芯部が0.89であった。
実施例2では、第1の人工毛髪3Aと第2の人工毛髪3Bとを50:50の割合で混合して人工毛髪束を作製した。
第2の人工毛髪として、断面形状が真円で海島構造を有する繊維を作製した。詳細には、母材となる部分即ち海部の原料チップとして三菱ガス化学社製でグレードMXナイロンのナイロンMXD6(PAMXD6)のチップを用い、島部となる部分の原料チップとして三菱エンジニアプラスチック社製でグレードNOVAMID1020のナイロン6(PA6)のチップを用い、ナイロンMXD6のチップとナイロン6のチップとの重量比率を65:35とした。実施例1及び実施例2と同様に各延伸ローラの速度を調整した結果、繊維の断面直径が83.2μmとなった。ここで、第2の人工毛髪の軸方向の断面構造は、断面のほぼ中央に一つの島部があり、その中央の島部を囲むように周状に6つの島部がほぼ均等に並んでいる構造である。各島部は何れも断面円形であり、島部の直径は24.2μmであったので、島部と海部の面積比は1.45:1であった。
実施例3では、第1の人工毛髪3Aと第2の人工毛髪3Bとを50:50の割合で混合して人工毛髪束を作製した。
比較例1では、第2の人工毛髪を用いないで実施例1で作製したナイロン6(PA6)の繊維のみを用いて人工毛髪束を作製した。
比較例2では、第1の人工毛髪3Aとして第1の実施例で作製したナイロン6(PA6)の繊維を用いた。第2の人工毛髪3Bとして断面形状が真円の単層構造の繊維を作製した。詳細には、原料チップとしてナイロン46(PA46)のチップを用い、図4(A)における第1延伸ローラ乃至第4延伸ローラ15、17、19、22の各ローラの速度を調整した。繊維の断面直径が82.4μmとなった。
比較例2では、第1の人工毛髪3Aと第2の人工毛髪3Bとを50:50の割合で混合して人工毛髪束を作製した。
比較例3では、第1の人工毛髪3Aとして第1の実施例で作製したナイロン6(PA6)の繊維を用いた。第2の人工毛髪3Bとして断面形状が真円の単層構造の繊維を作製した。詳細には、原料チップとして三菱ガス化学社製でグレードMXナイロンのナイロンMXD6(PAMXD6)のチップと三菱エンジニアプラスチック社製でグレードNOVAMID1020のナイロン6(PA6)のチップとを重量比率で25:75で混ぜたものを用い、図4(A)における第1延伸ローラ乃至第4延伸ローラ15、17、19、22の各ローラの速度を調整した。繊維の断面直径が82.1μmとなった。
比較例3では、第1の人工毛髪3Aと第2の人工毛髪3Bとを50:50の割合で混合して人工毛髪束を作製した。
比較例4では、第1の人工毛髪3Aとして第1の実施例で作製したナイロン6(PA6)の繊維を用いた。第2の人工毛髪3Bとして断面形状が真円の単層構造の繊維を作製した。詳細には、原料チップとして三菱ガス化学社製でグレードMXナイロンのナイロンMXD6(PAMXD6)のチップと三菱エンジニアプラスチック社製でグレードNOVAMID1020のナイロン6(PA6)のチップとを重量比率で85:15で混ぜたものを用い、図4(A)における第1延伸ローラ乃至第4延伸ローラ15、17、19、22の各ローラの速度を調整した。繊維の断面直径が83.1μmとなった。
比較例4では、第1の人工毛髪3Aと第2の人工毛髪3Bとを50:50の割合で混合して人工毛髪束を作製した。
比較例5では、第1の人工毛髪3Aとして第1の実施例で作製したナイロン6(PA6)の繊維を用いた。第2の人工毛髪3Bとして断面形状が真円の単層構造の繊維を作製した。詳細には、原料チップとして東洋紡社製のグレードRE530Aのポリエチレンテレフタレート(PET)のチップを用い、図4(A)における第1延伸ローラ乃至第4延伸ローラ15、17、19、22の各ローラの速度を調整した。繊維の断面直径が80.1μmとなった。
比較例5では、第1の人工毛髪3Aと第2の人工毛髪3Bとを70:30の割合で混合して人工毛髪束を作製した。比較例5では第2の人工毛髪としてポリエステル系であるポリエチレンテレフタレート樹脂という硬い繊維を第1の人工毛髪に混入しているため、第1の人工毛髪と第2の人工毛髪との混合比を50:50ではなく70:30とした。
比較例6では、第1の人工毛髪3Aとして第1の実施例で作製したナイロン6(PA6)の繊維を用いた。第2の人工毛髪3Bとして第1の実施例で作製した、ナイロン6(PA6)及びナイロンMXD6(PAMXD6)からなる単層構造を有する繊維を用いた。
第1の人工毛髪3Aと第2の人工毛髪3Bとを15:85の割合で混合して人工毛髪束を作製した。
比較例7では、第1の人工毛髪3Aとして第1の実施例で作製したナイロン6(PA6)の繊維を用いた。第2の人工毛髪3Bとして第1の実施例で作製した、ナイロン6(PA6)及びナイロンMXD6(PAMXD6)からなる単層構造を有する繊維を用いた。
第1の人工毛髪3Aと第2の人工毛髪3Bとを85:15の割合で混合して人工毛髪束を作製した。
比較例8では、第1の人工毛髪3Aとして第1の実施例で作製したナイロン(PA6)の繊維を用いた。第2の人工毛髪3Bとして第2の実施例で作製した鞘芯構造の繊維を用いた。第1の人工毛髪3Aと第2の人工毛髪3Bとを15:85の割合で混合して人工毛髪束を作製した。
比較例9では、第1の人工毛髪3Aとして第1の実施例で作製したナイロン6(PA6)の繊維を用いた。第2の人工毛髪3Bとして第2の実施例で作製した鞘芯構造の繊維を用いた。第1の人工毛髪3Aと第2の人工毛髪3Bとを85:15の割合で混合して人工毛髪束を作製した。
比較例10では、第1の人工毛髪3Aとして第1の実施例で作製したナイロン6(PA6)の繊維を用いた。第2の人工毛髪3Bとして第3の実施例で作製した海島構造の繊維を用いた。第1の人工毛髪3Aと第2の人工毛髪3Bとを15:85の割合で混合して人工毛髪束を作製した。
比較例11では、第1の人工毛髪3Aとして第1の実施例で作製したナイロン6(PA6)の繊維を用いた。第2の人工毛髪3Bとして第3の実施例で作製した海島構造を有する繊維を用いた。第1の人工毛髪3Aと第2の人工毛髪3Bとを85:15の割合で混合して人工毛髪束を作製した。
(測定条件)
チャック間距離:1cm
トルク検出器:トーションワイヤー(スチールワイヤー)のねじれ検出方式
曲率:±2.5cm-1
曲げ変位速度:0.5cm-1/秒
測定サイクル:1往復
表1に各実施例及び比較例の曲げ剛性値の測定結果を示す。表1には第1及び第2の人工毛髪の作製条件等も合わせて示している。また、表1には、各実施例、比較例の各毛髪の曲げ剛性値の実測値のほか、断面直径80μmに換算した値も示した。第1の人工毛髪の曲げ剛性値と第2の人工毛髪の曲げ剛性値の差を求めた。断面直径80μmにおける数値換算は次の通りである。曲げ剛性値は、繊維半径の4乗に比例すると言われていることから、一般的に曲げ剛性と繊維の太さは比例関係にあると考えられている。そこで、実際にテスターでの曲げ剛性測定値を、実測した毛髪の直径から計算した断面積で割り単位面積当たり(mm2)を求め、毛髪の直径が80μmでの断面積を乗じた値とした。
第2の人工毛髪については、実施例1乃至3、比較例2乃至5でそれぞれ作製しているので、各毛髪の曲げ剛性値は、順に、5.33×10-5N・cm2/本、4.86×10-5N・cm2/本、5.28×10-5N・cm2/本、4.96×10-5N・cm2/本、4.72×10-5N・cm2/本、5.66×10-5N・cm2/本、8.11×10-5N・cm2/本であった。
実施例1、実施例4、実施例5、比較例6及び比較例7では、第1の人工毛髪と第2の人工毛髪との曲げ剛性値の差は1.93×10-5N・cm2/本であった。
実施例2、実施例6、実施例7、比較例8及び比較例9では、第1の人工毛髪と第2の人工毛髪との曲げ剛性値の差は1.54×10-5N・cm2/本であった。
実施例3、実施例8、実施例9、比較例10及び比較例11では、第1の人工毛髪と第2の人工毛髪との曲げ剛性値の差は1.75×10-5N・cm2/本であった。
比較例2では、第1の人工毛髪と第2の人工毛髪との曲げ剛性値の差は1.54×10-5N・cm2/本であった。
比較例3では、第1の人工毛髪と第2の人工毛髪との曲げ剛性値の差は1.35×10-5N・cm2/本であった。
比較例4では、第1の人工毛髪と第2の人工毛髪との曲げ剛性値の差は2.11×10-5N・cm2/本であった。
比較例5では、第1の人工毛髪と第2の人工毛髪との曲げ剛性値の差は4.96×10-5N・cm2/本であった。
実施例及び比較例でそれぞれ作製した人工毛髪束を評価するために、予め直径25mmのアルミパイプに毛髪の長さが20cmの毛束を捲いて加熱処理により毛髪にカールを付与した後に、毛髪の半折り位置を5cm×5cmの仮想かつらベースとしてのネット地に植設することにより毛髪の長さが10cmのスワッチ60を作製した(図7乃至図10参照)。そのスワッチ60を用いて毛髪としての特性評価を行った。特性評価項目は、柔軟性、スタイルセット性、スタイル保持性、集束性、カールセット性及びカール保持性とし、それぞれ以下のように評価した。
柔軟性の評価を次の要領で行った。図7は柔軟性評価手順を模式的に示す図である。図7(A)に示すように仮想かつらベース61に結着した毛髪62をセットしてカール高さを測定し、図7(B)に示すように50gの負荷として負荷用板63を毛髪62上に載せ、5分間経過した後、負荷用板63を取り除いて1分間放置した後のカールの高さを図7(C)に示すように測定した。図7(A)に示すように負荷を与える前のカールの高さをh1とし、図7(C)に示すように負荷を与えた後のカールの高さをh1’とし、(h1’/h1)×100から回復率を算出し、数値が高い程硬さがあり柔軟性が劣ると判断した。
スタイルセット性の評価を次の要領で行った。図8はスタイルセット性の評価手順を模式的に示す図である。図8(A)に示すように、仮想かつらベース61に結着した毛髪62をスチーマーで伸ばしてカールの高さを測定し、図8(B)に示すように毛髪62に櫛64を差し込んで矢印の方向に移動した後、図8(C)に示すように櫛64を半回転させてその状態を10秒間維持後、櫛64を外して10秒間放置した後に図8(D)に示すようにカールの高さを測定した。図8(A)に示す状態でのカールの高さをh2とし、図6(D)に示す状態でのカールの高さをh2’とし、(h2’-h2)/h2×100からカールの高さアップ率を算出し、数値が高い程コームなどでスタイルが変りやすいのでセット性が高いと判断した。
スタイル保持性の評価を次の要領で行った。図9はスタイル保持性の評価手順を模式的に示す図である。図9(A)に示すように仮想かつらベース61に結着した毛髪62をセットした後にカール高さを測定し、その後図9(B)のように毛髪62幅の中心部に鉤針65を挿入して毛髪62を引っ掛けて、次に図9(C)(D)のように鉤針65を毛髪62が鉤針65から外れるまで垂直に引き上げた後の高さを測定した。
図9(A)に示す状態でのカールの高さをh3とし、図9(D)に示す状態でのカールの高さをh3’とし、(h3’-h3)/h3からカールの高さアップ率を算出し、数値が高い程外的要因でスタイルが崩れ易いと判断した。
集束性の評価について説明する。集束性とは、毛髪を濡らした時に毛髪一本一本同士がくっ付いて凝集するような状態を意味する。天然毛髪の場合通常水分を取り除くと毛髪同士は離れて凝集状態は解消される。これに対して、合成樹脂から成る繊維の場合には集束した状態から、水分を取り除いても集束状態が解消せずにその状態を保持し、または水分がない状態でもあっても凝集する性質がある。この集束性の現象により、同本数の毛髪を横に並べた時に、集束している状態では並べた毛束全体の幅が小さくなり、集束していない状態では毛束全体の幅が大きくなる。そこで、湿度が高いと集束が起こり易いので、高湿度環境下に毛髪を放置して集束を発生させた状態から、低湿度環境下に移して集束の解消程度を測定した。
図10は集束性の評価方法を模式的に示す図である。図10(A)に示すように温度25℃、湿度50±5%の環境下でスワッチ60をセットする。その後、温度25℃、湿度80±5%の環境下で移して30分間放置する。すると、図10(B)に示すように毛髪62同士が絡み合う。その後、温度25℃、湿度50±5%の環境下に戻すと、図10(C)に示すように集束状態がほぼ解消する場合と図10(D)に示すように集束状態が解消せず保持している場合とがある。
毛髪のカール部分は櫛などでセットして整えても、かつらベースに毛髪を手作業で取り付けるため、毛髪のカールの絡み合いがスワッチにより異なる。そのため、なるべく誤差をすくなくするために、各環境下で、カールの起点の位置を基準に毛髪束の幅W1、W2、W3、W4を定めることにより集束性を定量化した。図10(A)に示す幅W1と比べ図10(B)に示す幅W2は小さくなる。図10(B)に示す幅W2よりも図10(C)に示す幅W3及び図10(D)に示す幅W4の方が大きくなる傾向にある。よって、幅W1と幅W3との関係、幅W1と幅W4との関係から集束性を定量化した。
カールのセット性の評価を次の要領で行った。毛髪束を図5(A)に示すように毛材31を20cmの長さに切り揃えたもの多数本例えば450~500本程度を1セットとして横に並べ、バラけないようにそのほぼ中央部を縫糸32で縫着することにより、幅が13~15cmのみの毛(ウエフト)状の毛束30に揃え、この毛束30を水に浸漬することにより濡らし、その後、図5(B)に示すように毛束30を直径25mmのアルミパイプ33に巻き付けてその上からナイロン製の不織布を巻きつけて180℃、1時間の加熱処理を施し、このカール付けした毛束における毛髪のカール径を測定した。測定したカール径の値がアルミパイプの直径25mmに近い程カールセット性が良いと判断した。
カールの保持性の評価を次の要領で行った。カールのセット性の評価で使用した毛束30であってカールが付与された毛束30を用い、温度25℃、湿度65±5%の環境下でカール径F1を測定し、シャンプー、ドライヤーでの乾燥、ブラッシングを50回繰り返した後の毛髪のカール径F2を測定した。各測定した値から、式(F2-F1)/F1×100により、カール径の伸び率を求め、カール径の伸び率の数値が大きいほどカール径の保持性が悪いと判断した。
以上の結果から、人工毛髪束の回復率としては、実施例1乃至実施例9で示す第1の人工毛髪と第2の人工毛髪との組み合わせが好ましく、ポリアミド繊維特有の柔軟性を失うことなく適度な柔軟性が付与されていることが分かった。
以上の結果から、人工毛髪束の高さアップ率としては、実施例1乃至実施例9で示す第1の人工毛髪と第2の人工毛髪との組み合わせが好ましく、何れの実施例においても一種類のポリアミド繊維で構成した人工毛髪束よりも所望のヘアスタイルをセットし易くなることが分かった。
第2の人工毛髪3Bには、実施例1で作製した、ナイロン6(PA6)とナイロンMXD6(PAMXD6)からなる単層構造を有する繊維を用いた。
実施例10では、第1の人工毛髪3Aと第2の人工毛髪3Bとを50:50の割合で混合して人工毛髪束を作製した。
第2の人工毛髪3Bとして、実施例3で作製した、海部がナイロンMXD6(PAMXD6)で島部がナイロン6(PA6)となる海島構造を有する繊維を用いた。
実施例11では、第1の人工毛髪3Aと第2の人工毛髪3Bとを50:50の割合で混合して人工毛髪束を作製した。
第2の人工毛髪3Bとして、実施例1で作製した、ナイロン6(PA6)とナイロンMXD6(PAMXD6)からなる単層構造を有する繊維を用いた。
実施例12では、第1の人工毛髪3Aと第2の人工毛髪3Bとを50:50の割合で混合して人工毛髪束を作製した。
第2の人工毛髪3Bとして、実施例1で作製した、ナイロン6(PA6)とナイロンMXD6(PAMXD6)からなる単層構造を有する繊維を用いた。
実施例13では、第1の人工毛髪3Aと第2の人工毛髪3Bとを50:50の割合で混合して人工毛髪束を作製した。
第2の人工毛髪3Bとして、実施例2で作製した鞘芯構造の繊維を用いた。
実施例14では、第1の人工毛髪3Aと第2の人工毛髪3Bとを50:50の割合で混合して人工毛髪束を作製した。
第2の人工毛髪3Bとして、実施例3で作製した海島構造の繊維を用いた。
実施例15では、第1の人工毛髪3Aと第2の人工毛髪3Bとを50:50の割合で混合して人工毛髪束を作製した。
第2の人工毛髪3Bとして、断面形状が真円で鞘芯層構造を有する繊維を作製した。詳細には、芯となる部分の原料チップとしてナイロンMXD6(三菱ガス化学社製MXナイロン PAMXD6)のチップを用い、鞘となる部分の原料チップとしてナイロン6(三菱エンジニアリングプラスチックス社製NOVAMID1020)のチップを用い、ナイロン6のチップとナイロンMXD6のチップとの重量比率を45:55とした。図4(B)の製造システムを用いて第1延伸ローラ乃至第4延伸ローラ15、17、19、22の各ローラの速度を調整した結果、繊維の断面直径が82.2μmとなった。ここで、毛髪直径を1とすると芯部は0.70であった。
実施例16では、第1の人工毛髪3Aと第2の人工毛髪3Bとを50:50の割合で混合して人工毛髪束を作製した。
第2の人工毛髪については、実施例16で新たに作製しており、その曲げ剛性値は5.01×10-5N・cm2/本であった。
第1の人工毛髪と第2の人工毛髪との曲げ剛性値の差は、実施例10、実施例11、実施例12、実施例13、実施例14、実施例15、実施例16の順に、1.69×10-5N・cm2/本、1.51×10-5N・cm2/本、1.64×10-5N・cm2/本、1.86×10-5N・cm2/本、1.53×10-5N・cm2/本、1.74×10-5N・cm2/本、1.74×10-5N・cm2/本であった。
柔軟性を示す毛束の回復率については、実施例10~16の順に、59.4%、58.0%、58.1%、56.5%、54.5%、53.6%、52.4%であった。これらの値は、図11に示したように、比較例7の値51.5%と比較例4の値65.1%との間にあり、実施例10~16についても実施例1乃至実施例9と同様、第1の人工毛髪と第2の人工毛髪との組み合わせとして好ましく、ポリアミド繊維特有の柔軟性を失うことなく、適度な柔軟性が付与されていることが分かった。
Claims (6)
- かつらベースに毛髪が取り付けられて成るかつらにおいて、
上記毛髪が、脂肪族ポリアミド樹脂でなる第1の人工毛髪と脂肪族ポリアミド樹脂及び半芳香族ポリアミド樹脂でなる第2の人工毛髪とが重量比で30:70~60:40の割合で混合してなることを特徴とするかつら。 - 前記第2の人工毛髪は単層構造、鞘芯構造及び海島構造の組み合わせの何れかであることを特徴とする、請求項1に記載のかつら。
- 前記第2の人工毛髪は鞘芯構造を有し、芯部が半芳香族ポリアミド樹脂でなり、鞘部が脂肪族ポリアミド樹脂でなることを特徴とする、請求項1に記載のかつら。
- 前記第2の人工毛髪は海島構造を有し、海部が脂肪族ポリアミド樹脂でなり、島部が半芳香族ポリアミド樹脂でなることを特徴とする、請求項1に記載のかつら。
- 前記第1の人工毛髪及び第2の人工毛髪は、何れも、温度20℃、湿度40%の測定条件下において、直径80μmで換算して7.8×10-5N・cm2/本以下の曲げ剛性値を有することを特徴とする、請求項1に記載のかつら。
- 前記第1の人工毛髪と第2の人工毛髪との曲げ剛性値の差が1.5~2.0×10-5N・cm2/本であることを特徴とする、請求項5に記載のかつら。
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170260391A1 (en) * | 2014-12-09 | 2017-09-14 | Denka Company Limited | Polyamide-based fiber for artificial hair having exceptional dripping resistance upon combustion |
EP3320795A4 (en) * | 2015-07-06 | 2018-06-06 | Himo Inc. | Knotting system, knotting method, and method for producing wig using same |
JP2019065433A (ja) * | 2017-10-03 | 2019-04-25 | デンカ株式会社 | 人工毛髪用繊維、人工毛髪、頭髪製品 |
WO2023105889A1 (ja) * | 2021-12-10 | 2023-06-15 | 株式会社カネカ | 人工毛髪用繊維束、及びそれを含む頭飾製品 |
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CN113195807B (zh) * | 2018-12-14 | 2023-10-27 | 电化株式会社 | 人造毛发用纤维及头饰品 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002227021A (ja) * | 2001-01-30 | 2002-08-14 | Kanegafuchi Chem Ind Co Ltd | 複合頭髪用繊維束 |
JP2007169806A (ja) * | 2005-12-20 | 2007-07-05 | Kaneka Corp | 人工毛髪用繊維束及びそれを用いた頭飾製品 |
WO2007086374A1 (ja) * | 2006-01-30 | 2007-08-02 | Aderans Holdings Co., Ltd. | 人工毛髪、人工毛髪を有するかつら並びに人工毛髪の製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09324314A (ja) * | 1996-06-05 | 1997-12-16 | Art Neichiyaa:Kk | かつら及び人工毛 |
CN100525664C (zh) * | 2005-02-15 | 2009-08-12 | 爱德兰丝控股股份有限公司 | 人工毛发和使用了该人工毛发的假发 |
KR100924319B1 (ko) * | 2005-02-15 | 2009-11-02 | 가부시키가이샤 아데랑스 홀딩스 | 인공 모발 및 인공 모발을 사용한 가발 |
-
2010
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002227021A (ja) * | 2001-01-30 | 2002-08-14 | Kanegafuchi Chem Ind Co Ltd | 複合頭髪用繊維束 |
JP2007169806A (ja) * | 2005-12-20 | 2007-07-05 | Kaneka Corp | 人工毛髪用繊維束及びそれを用いた頭飾製品 |
WO2007086374A1 (ja) * | 2006-01-30 | 2007-08-02 | Aderans Holdings Co., Ltd. | 人工毛髪、人工毛髪を有するかつら並びに人工毛髪の製造方法 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170260391A1 (en) * | 2014-12-09 | 2017-09-14 | Denka Company Limited | Polyamide-based fiber for artificial hair having exceptional dripping resistance upon combustion |
JPWO2016092922A1 (ja) * | 2014-12-09 | 2017-09-21 | デンカ株式会社 | 燃焼時の耐ドリップ性に優れたポリアミド系人工毛髪用繊維 |
EP3320795A4 (en) * | 2015-07-06 | 2018-06-06 | Himo Inc. | Knotting system, knotting method, and method for producing wig using same |
US10426210B2 (en) | 2015-07-06 | 2019-10-01 | Himo, Inc. | Knotting system, knotting method, and method for producing wig using same |
JP2019065433A (ja) * | 2017-10-03 | 2019-04-25 | デンカ株式会社 | 人工毛髪用繊維、人工毛髪、頭髪製品 |
JP7053210B2 (ja) | 2017-10-03 | 2022-04-12 | デンカ株式会社 | 人工毛髪用繊維、人工毛髪、頭髪製品 |
WO2023105889A1 (ja) * | 2021-12-10 | 2023-06-15 | 株式会社カネカ | 人工毛髪用繊維束、及びそれを含む頭飾製品 |
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