US20080210250A1 - Fiber Bundle for Artificial Hair and Head Decoration Article Comprising the Same - Google Patents

Fiber Bundle for Artificial Hair and Head Decoration Article Comprising the Same Download PDF

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Publication number
US20080210250A1
US20080210250A1 US11/917,197 US91719706A US2008210250A1 US 20080210250 A1 US20080210250 A1 US 20080210250A1 US 91719706 A US91719706 A US 91719706A US 2008210250 A1 US2008210250 A1 US 2008210250A1
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Prior art keywords
fibers
vinyl chloride
artificial hair
fiber bundle
shape
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US11/917,197
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English (en)
Inventor
Atsushi Horihata
Akira Sakurai
Yoshiyuki Yoshino
Takafumi Kono
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Denka Co Ltd
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Denki Kagaku Kogyo KK
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Assigned to DENKI KAGAKU KOGYO KABUSHIKI KAISHA reassignment DENKI KAGAKU KOGYO KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KONO, TAKAFUMI, YOSHINO, YOSHIYUKI, SAKURAI, AKIRA, HORIHATA, ATSUSHI
Publication of US20080210250A1 publication Critical patent/US20080210250A1/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/08—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons
    • D01F6/10—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polyvinyl chloride or polyvinylidene chloride
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/32—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising halogenated hydrocarbons as the major constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/48—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of halogenated hydrocarbons
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00—Wigs
    • A41G3/0083—Filaments for making wigs

Definitions

  • the present invention relates to a fiber bundle of artificial hair to be used for hair decoration articles such as wigs, hairpieces, braided hair, extension hair, accessory hair or doll hair, and a head decoration article employing it.
  • Units such as “parts” and “%” showing a blend composition of a resin composition will be represented by mass unless otherwise specified.
  • Vinyl chloride resin fibers obtained by spinning a vinyl chloride resin are excellent in transparency and flexibility and thus are widely used as fibers for artificial hair to be used for head decoration articles such as wigs.
  • a wet spinning method of spinning a vinyl chloride resin by using an organic solvent a dry spinning method or a melt spinning method of melt-spinning it without using an organic solvent, has been known.
  • the melt spinning method is a method of extruding the resin at a high temperature under a high pressure by using an extruder.
  • a vinyl chloride resin has a high melt viscosity and an extremely low spinning property, and thus, there has been a problem such that it is difficult to melt-spin the vinyl chloride resin to obtain vinyl chloride resin fibers having a prescribed quality.
  • strands are extruded from nozzle holes having a small sectional area per hole, introduced into a heating cylinder and heat-melted and drawn therein to obtain unstretched fibers.
  • they are discharged from nozzle holes having a small sectional area per hole, whereby there has been a problem that the pressure exerted to the nozzles tends to be high and is likely to exceed the pressure designed for the extruder, or there has been a problem such that gumming (scales around the nozzles) is likely to result.
  • a means to incorporate a plasticizer and a vinyl chloride homopolymer having a low degree of polymerization has been proposed (e.g. Patent Document 1).
  • fiber bundles for artificial hair processed by using the above-mentioned fibers for artificial hair are used as head decoration articles.
  • Such fiber bundles for artificial hair are selected from those wherein the sectional shape of fibers is circular, oval, horseshoe, a cocoon-shape, a ribbon-shape or a star-shape, depending upon the properties such as the touch, the appearance, the gloss and the esthetic functionality attributable to human hair.
  • the head decoration articles are generally classified into three styles of short, medium and long, and the required functions are different depending upon the styles. It has been common to modify the sectional shape of fibers to meet such requirements. However, with a single sectional shape, it has been impossible to meet the requirements of a wide range of hairstyles.
  • Patent Document 2 In order to improve uniformity of curling to meet such requirements, a method to have a three-pronged sectional shape (e.g. Patent Document 2), a method to have a hollow section (e.g. Patent Document 3) or a method of mixing fibers having three types of sectional shapes (e.g. Patent Document 4) has been proposed.
  • Patent Document 1 JP-A-11-61555
  • Patent Document 2 JP-U-58-37961
  • Patent Document 3 JP-U-63-48652
  • Patent Document 4 JP-B-58-13641
  • the present inventors have conducted an extensive study to accomplish the above object and as a result, have found that by mixing fibers having rigidities within certain ranges, a fiber bundle for artificial hair employing fibers for artificial hair made of vinyl chloride fibers, exhibits merits as a head decoration article effectively. Further, it has been found that as the above vinyl chloride fibers, fibers for artificial hair prepared under a low nozzle pressure with little gumming, are obtainable by melt-spinning a specific ethylene/vinyl chloride copolymer resin.
  • the present invention has been made on the basis of the above discoveries and provides the following.
  • a fiber bundle for artificial hair comprising fibers (A) having a flexural rigidity of (1.2 to 3.5) ⁇ 10 ⁇ 2 N cm 2 as determined by the KES method and fibers (B) having a flexural rigidity of (0.5 to 1.0) ⁇ 10 ⁇ 2 N cm 2 as determined by the KES method, wherein both of the fibers (A) and the fibers (B) are made of vinyl chloride fibers.
  • the fiber bundle for artificial hair according to any one of the above (1) to (4), wherein the vinyl chloride fibers are made of fibers prepared by melt spinning an ethylene/vinyl chloride copolymer resin having an ethylene content of from 0.5 to 3 mass %.
  • the present invention it is possible to easily obtain fibers for artificial hair prepared under a low nozzle pressure with little gumming, and it is further possible to obtain a fiber bundle for artificial hair having a soft touch close to human hair, while maintaining uniform curling.
  • FIG. 1 is a schematic sectional view of a nozzle shape for fibers having a Y-shape cross section and the obtained fibers, representing one embodiment of the fiber bundle for artificial hair of the present invention.
  • FIG. 2 is a is a schematic sectional view of a nozzle shape for fibers having a U-shape cross section and the obtained fibers, representing one embodiment of the fiber bundle for artificial hair of the present invention.
  • FIG. 3 is a schematic sectional view of a nozzle shape for fibers having a C-shape cross section and the obtained fibers, representing one embodiment of the fiber bundle for artificial hair of the present invention.
  • FIG. 4 is a schematic sectional view of a nozzle shape for fibers having a spectacled-shape cross section and the obtained fibers, representing one embodiment of the fiber bundle for artificial hair of the present invention.
  • FIG. 5 is a schematic sectional view of a nozzle shape for fibers having an oval spectacled-shape cross section and the obtained fibers, representing one embodiment of the fiber bundle for artificial hair of the present invention.
  • FIG. 6 is a schematic sectional view of a nozzle shape for fibers having a five leaf-shape cross section and the obtained fibers, representing one embodiment of the fiber bundle for artificial hair of the present invention.
  • FIG. 7 is a schematic sectional view of a nozzle shape for fibers having a rod-shape cross section and the obtained fibers, representing one embodiment of the fiber bundle for artificial hair of the present invention.
  • the fiber bundle for artificial hair of the present invention is composed of vinyl chloride fibers prepared by melt spinning a vinyl chloride resin.
  • the vinyl chloride resin may be obtained by e.g. bulk polymerization, solution polymerization, suspension polymerization or emulsion polymerization. However, in consideration of e.g. the initial coloration of fibers, it is preferred to use ones prepared by suspension polymerization.
  • the vinyl chloride resin may be a homopolymer resin which is a conventional homopolymer of vinyl chloride or various types of conventional copolymer resins and is not particularly limited.
  • the copolymer resins are conventional copolymer resins including, for example, a copolymer resin of vinyl chloride with a vinyl ester, such as a vinyl chloride/vinyl acetate copolymer resin or a vinyl chloride/vinyl propionate copolymer resin, a copolymer resin of vinyl chloride with an acrylate, such as a vinyl chloride/butyl acrylate copolymer resin or a vinyl chloride/2-ethylhexyl acrylate copolymer resin, a copolymer resin of vinyl chloride with an olefin such as a vinyl chloride/ethylene copolymer resin or a vinyl chloride/propylene copolymer resin, and a vinyl chloride/acrylonitrile copolymer resin.
  • a copolymer resin of vinyl chloride with a vinyl ester such as a vinyl chloride/vinyl acetate copolymer resin or a vinyl chloride/vinyl propionate cop
  • a homopolymer resin which is a homopolymer of vinyl chloride, or a vinyl chloride/vinyl acetate copolymer resin.
  • the content of the comonomer is not particularly limited and may be determined depending upon the required product quality such as the molding processability, fiber properties, etc.
  • the vinyl chloride resin to be used in the present invention is preferably a homopolymer resin which is a homopolymer of vinyl chloride, a vinyl chloride/ethylene copolymer resin or a vinyl chloride/vinyl acetate copolymer resin.
  • the content of the comonomer is not particularly limited and may be determined depending upon the required product quality such as the molding processability, fiber properties, etc.
  • the viscosity average polymerization degree of the vinyl chloride resin is preferably from 600 to 2,500, more preferably from 900 to 2,500, particularly preferably from 1,000 to 2,000. If it is less than 600, the melt viscosity tends to be low, and the obtained fibers tend to be susceptible to thermal shrinkage. On the other hand, if it exceeds 2,500, the melt viscosity tends to be high, and the molding temperature of the fibers tends to be high, whereby coloration of fibers may sometimes result.
  • the viscosity average polymerization degree is one calculated by JIS K6720-2 by dissolving 200 mg of the resin in 50 ml of nitrobenzene and measuring the specific viscosity of this polymer solution in a constant temperature tank of 30° C. by using a Ubbelohde viscometer.
  • the vinyl chloride fibers are particularly preferably fibers prepared by melt spinning an ethylene/vinyl chloride copolymer resin having an ethylene content of from 0.5 to 3 mass %.
  • an ethylene/vinyl chloride copolymer resin is a copolymer resin obtainable by a polymerization reaction of vinyl chloride monomer with ethylene monomer, wherein the ethylene content is from 0.5 to 3 mass %, preferably from 0.8 to 2.5 mass %. If the ethylene content is less than 0.5 mass %, the effect to suppress the nozzle pressure and gumming tends to be hardly obtainable. On the other hand, if it exceeds 3 mass %, the fibers tend to be susceptible to thermal shrinkage.
  • the ethylene content is measured in accordance with the GTP-002 method.
  • a resin composition having the above-mentioned ethylene/vinyl chloride copolymer resin mixed with a vinyl chloride resin other than the ethylene/vinyl chloride copolymer resin is subjected to melt spinning, whereby it is possible to impart the curl-retaining property to the fibers.
  • the proportion of the vinyl chloride resin mixed is preferably at most 40 mass %, more preferably at most 35 mass %. If the proportion of the vinyl chloride resin exceeds 40 mass %, the effect to suppress gumming at the time of melt spinning may not sometimes be obtainable.
  • known compounding agents may be incorporated, such as a thermal stabilizer, a processing aid, a reinforcing agent, an ultraviolet absorber, an antioxidant, a plasticizer, an antistatic agent, a filler, a flame retardant and a pigment.
  • a special compounding agent such as a blowing agent, a crosslinking agent, an adhesion-imparting agent, a hydrophilicity-imparting agent, an electrical conductivity-imparting agent or a perfume may also be added, as the case requires, within a range not to impair the purpose of the present invention.
  • thermal stabilizer one or more may be selected for use among thermal stabilizers including, for example, a Ca—Zn type thermal stabilizer, a hydrotalcite type thermal stabilizer, a tin type thermal stabilizer and a zeolite type thermal stabilizer. It is particularly preferred to use a combination of a Ca—Zn type thermal stabilizer and a hydrotalcite type thermal stabilizer, which is excellent in balance of the molding processability and fiber properties, and it is preferred to use such a combination in an amount of from 0.5 to 5.0 parts by mass per 100 parts by mass of the vinyl chloride resin.
  • plasticizer one or more may be selected fro use among plasticizers including, for example, an epoxy plasticizer, a phthalic acid plasticizer, an adipic acid plasticizer, a polyester plasticizer, a phosphate plasticizer, a stearic acid plasticizer, a trimellitic acid plasticizer and a pyromellitic plasticizer.
  • plasticizers including, for example, an epoxy plasticizer, a phthalic acid plasticizer, an adipic acid plasticizer, a polyester plasticizer, a phosphate plasticizer, a stearic acid plasticizer, a trimellitic acid plasticizer and a pyromellitic plasticizer.
  • an epoxy plasticizer which is less influential over the elongation, and it is preferred to use such a plasticizer in an amount of from 0.2 to 3.0 parts by mass per 100 parts by mass of the vinyl chloride resin.
  • a lubricant may be used depending upon the purpose.
  • a conventional one may be used, but it may particularly be one or a mixture of at least two selected from a metal soap type lubricant, a higher fatty acid type lubricant and a polyethylene type lubricant.
  • the metal soap type lubricant may, for example, be a metal soap such as a stearate, laurate or oleate of e.g. Na, Ca, Zn, Ba or Mg.
  • the higher fatty acid type lubricant may, for example, be a fatty acid ester of an alcohol or a polyhydric alcohol, such as hydrogenated oil, butyl stearate, stearic acid monoglyceride, pentaerythritol tetrastearate or stearyl stearate.
  • the polyethylene type lubricant is not particular limited, and a known lubricant may be used. Particularly preferred is a high density polyethylene lubricant having an average molecular weight of from 2,000 to 6,000 and density of from 0.95 to 0.98.
  • Fibers (A) having sectional shapes Y-, U- and C-shapes have a high symmetry in their sectional shapes, and in the same fineness, they have a porosity higher than fibers (B) having a spectacled sectional shape, whereby their rigidity is high, and they are suitable to obtain more uniform curling.
  • a flexural rigidity is measured by e.g. the KES method.
  • the KES method is an abbreviation of Kawabata Evaluation System and is designed to measure the repulsion at each curvature when the fibers were flexed by means of a flexural property measuring apparatus (manufactured by KATO TECH CO., LTD.) by the KES method as disclosed by Sueo Kawabata in the journal of Textile Machinery Society (Textile Engineering), vol. 26, No. 10, p. 721-p. 728 (1973).
  • a method for controlling the value of the flexural rigidity by the KES method it is possible to adopt, for example, a method of controlling the spinneret temperature of nozzles at the time of melt-spinning fibers (A) and (B). Although the reason is not clearly understood, it is possible to lower the flexural rigidity by lowering the spinneret temperature of the nozzles.
  • control can be attained by changing the fineness of the fiber. Namely, by reducing the fineness, the flexural rigidity can be made low. On the other hand, by enlarging the fineness, the flexural rigidity can be made high.
  • the flexural rigidity of fibers (A) by the KES method is (1.2 to 3.5) ⁇ 10 ⁇ 2 N ⁇ cm 2 , preferably (1.8 to 2.5) ⁇ 10 ⁇ 2 N ⁇ cm 2 .
  • the flexural rigidity of fibers (B) by the KES method is (0.5 to 1.0) ⁇ 10 ⁇ 2 N ⁇ cm 2 , preferably (0.7 to 0.8) ⁇ 10 ⁇ 2 N ⁇ cm 2 .
  • the flexural rigidity of fibers (A) by the KES method is smaller than 1.2 ⁇ 10 ⁇ 2 N cm 2 , the curling uniformity tends to be inferior, and if it exceeds 3.5 ⁇ 10 ⁇ 2 N ⁇ cm 2 , the touch tends to be hard, such being not suitable for a fiber bundle for artificial hair. Further, if the flexural rigidity of fibers (B) by the KES method is less than 0.5 ⁇ 10 ⁇ 2 N ⁇ cm 2 , the curling uniformity tends to be inferior, and if it exceeds 1.0 ⁇ 10 ⁇ 2 N ⁇ cm 2 , the touch tends to be hard, such being not suitable for a fiber bundle for artificial hair.
  • the fibers (A) and the fibers (B) are preferably vinyl chloride fibers made of a vinyl chloride resin.
  • the vinyl chloride fibers resemble natural hair in the gloss, strength, elongation and specific gravity, and their touch is soft, whereby they are preferred as a fiber bundle for artificial hair.
  • vinyl chloride resin constituting the vinyl chloride fibers one having the above-described construction and physical properties can be suitably employed.
  • the fibers (A) are more preferably from 80 to 50 mass %.
  • Mixing of the fibers (A) and (B) may be carried out during the spinning or at the time of secondary processing. However, in order to obtain a uniform blend to attain the gloss and tough like natural hair, it is preferred to mix them during spinning from mixed nozzles (circular spinneret) wherein a number of nozzles for fibers (A) and (B) are disposed.
  • the sectional shape of the fibers (A) is at least one selected from the group consisting of Y-, U- and C-shapes. These sectional shapes are highly symmetric and have a porosity relatively larger than e.g. a circular shape at the same fineness, and thus they are suitable to obtain high rigidity and more uniform curling.
  • Y-shape is a shape having three projections radially extending from the center portion in the cross section of a fiber and represents, for example, the shape shown in FIG. 1 .
  • the lengths of the projections may be the same or different and may have a dent of recess.
  • the angle ⁇ between the projections is preferably from 90 to 140°, more preferably from 110 to 130°.
  • the cross-sectional shape is such that the total angle of three ⁇ becomes 360°, and the radius of the circumscribed circle becomes from 2 to 4 times the radius of the inscribed circle.
  • U-shape is a semi-hollow shape with a circular arc having an opening, in the cross section of a fiber and represents, for example, the shape shown in FIG. 2 .
  • the thickness of the circular arc portion may be the same or varied and may be asymmetric, and the ends of the opening may be rounded or angular. Further, the width of the opening is preferably the same as the diameter of the center portion of the hollow.
  • the C-shape represents a fiber having an “opened hollow” sectional shape perpendicular to the longitudinal axis of the fiber and having a circular arc in the cross section of the fiber.
  • the “opened hollow” represents a generally C-shaped section having the center portion of the hollow and the solid region extending around the center portion to define the wall portion surrounding the center portion, and the opening on one side of the wall portion connects the center portion to the outside of the fiber.
  • the opening is narrower than the diameter of the center portion of the hollow, whereby a throat or narrowed portion is formed between the center portion of the hollow and the outside of the fiber. It represents, for example, the shape shown in FIG. 3 .
  • the thickness of the circular arc portion may be the same or varied and may be asymmetric, and the ends of the opening may be rounded or angular.
  • the sectional shape of the fibers (B) is preferably a spectacled shape, and the spectacled shape is suitable for a fiber bundle for artificial hair, since not only a soft touch like natural hair is thereby obtainable, but also a plastic-like gloss is thereby little.
  • the spectacled shape is a shape having two circles or ellipses continuously positioned and connected by a bridge, and it represents, for example, the spectacled shape of FIG. 4 or an ellipsoidal spectacled shape of FIG. 5 .
  • the circles or the ellipses may have a dent or recess, and the centers of the circles or the ellipses and the center of the connecting portion may be in parallel or not in parallel.
  • the connecting bridge is preferably the same as or up to 1.8 times the radius of the circles or the half of the average of the long axis and short axis of the ellipses, and the contact points of the bridge with the circles are preferably always curved in an arc.
  • the continuous circles are preferably adjacent to each other to such an extent that the arcs of the circles are in contact with each other, and ones which are extremely apart from each other or ones of which the arcs overlap each other are not desirable.
  • a vinyl chloride resin composition as the starting material may be used in the form of a powder compound prepared by mixing by means of a conventional mixing machine such as a Henschel mixer, a super mixer or a is ribbon blender, or in the form of a pellet compound prepared by melt-mixing such a powder compound.
  • the powder compound may be prepared under conventional conditions, and the preparation may be hot blending or cold blending. Particularly preferably, hot blending is used wherein the cutting temperature at the time of blending is raised to a level of from 105 to 155° C. in order to reduce the volatile component in the resin composition.
  • the pellet compound can be prepared in the same manner as the preparation of a usual vinyl chloride type pellet compound.
  • a kneader such as a single screw extruder, a counter-rotating twin screw extruder, a conical twin screw extruder, a co-rotating twin screw extruder, a co-kneader, a planetary gear extruder or a roll kneader
  • the pellet compound may be prepared.
  • the conditions for preparing the pellet compound are not particularly limited, but it is preferred to set them so that the resin temperature will be at most 185° C.
  • the fibers (A) and (B) are preferably processed by melt spinning, and nozzles to be used may suitably be selected taking into consideration the expansion due to the Burns effect at the time when the molten resin is extruded from the nozzles and/or the reduction of the sectional shape due to drawing exerted to the fibers at the time of spinning.
  • the polyvinyl chloride resin has a good shaping property, and by using nozzles having a nozzle hole shape close to the sectional shape of the desired fibers of the present invention, the fibers (A) and (B) will be obtained.
  • melt spinning can be carried out by using conventional nozzles.
  • strands are melt-extruded from a plurality of nozzle holes of multi-type nozzles having a sectional area of at most 0.5 mm 2 per nozzle hole to produce non-stretched fibers having at most 300 decitex.
  • non-stretched fibers may be obtained also by melt-spinning a pellet compound or the like, of the resin composition at a temperature of from 160 to 190° C., for example, by using a single screw extruder.
  • the conditions for stretch treatment are preferably such that the non-stretched fibers are stretched from 2 to 4 times in an atmosphere of air held at a temperature of from 90 to 120° C., and then the stretched fibers are annealed in an atmosphere of air held at a temperature of from 110 to 140° C. until they become to have a length of from 60 to 100% of the length before the annealing.
  • the fibers having stretch treatment and thermal treatment applied to the non-stretched fibers are preferably such that the fineness of each fiber is preferably from 20 to 100 decitex, more preferably from 50 to 80 decitex. When the fineness is from 20 to 100 decitex, the fiber is comparable to natural hair, and when it is from 50 to 80 decitex, it will be one having the touch and texture further improved.
  • the “nozzle pressure” is an index as to whether or not, when continuous spinning is carried out, the spinning can be carried out in a stabilized state for a long period of time.
  • the “nozzle pressure” is a resin pressure measured at nozzles when continuous spinning is carried out for 24 hours, and it was evaluated by the following standards.
  • the nozzle pressure is at most 40 MPa, whereby the production can be constantly carried out, and there is no problem in the long running property.
  • the “gumming time” is an index for the production time until the production becomes difficult as fiber breakage starts due to gumming and the gumming is wiped off.
  • the “gumming time” was evaluated by the following standards.
  • Excellent It is at least 36 hours, whereby the production can be carried out constantly, and there is no problem in the long running property at all.
  • Good It is from 24 to 36 hours, whereby the production can be carried out constantly, and there is no problem in the long running property.
  • No good It is less than 24 hours, and there is a problem in the long running property to carry out the production constantly.
  • the “coloration” is the color of fibers immediately after the continuous spinning, as visually observed, and it was evaluated by the following standards.
  • the “curl-retention” was evaluated under the following standards by putting fibers in a hot air dryer at 90° C. for 60 minutes in a state where the fibers are wound on an aluminum pipe with their forward end fixed, thereafter taking them out, suspending them for 24 hours in a state at a temperature of 23° C. under a relative humidity of 50° C., and measuring the distance of the movement of the suspended forward end before and after the suspension. The shorter the distance of this movement, the better the curl-retention.
  • Excellent The distance of movement of the forward end is at most 1.5 cm.
  • Good The distance of movement of the forward end is more than 1.5 cm and less than 3.0 cm.
  • No good The distance of movement of the forward end is at least 3.0 cm.
  • the “thermal shrinkage” means the thermal shrinkage which takes place when a test specimen is thermally treated.
  • the test for the thermal shrinkage is carried out by subjecting a test sample adjusted to a length of 100 mm to thermal treatment for 15 minutes in a gear oven of 90° C. and measuring the length of the test sample before and after the thermal treatment.
  • the thermal shrinkage is obtained from the obtained length by the following formula.
  • the number of test samples was ten, and the average value was evaluated by the following standards.
  • the average value of thermal shrinkage is at most 5%, whereby there is no problem at all from the viewpoint of the product quality.
  • Good The average value of thermal shrinkage is more than 5% and less than 10%, and there is no problem from the viewpoint of the product quality.
  • No good The average value of the thermal shrinkage is at least 10%, whereby there is a problem from the viewpoint of the product quality.
  • Fibers for artificial hair having a fineness of 67 decitex were obtained by sequentially carrying out (a) a step of mixing by a Henschel mixer a resin composition prepared by blending 100 parts by mass of an ethylene/vinyl chloride copolymer resin (manufactured by Taiyo Vinyl Corp., TE-1300; ethylene content: 1.5 mass %, viscosity average polymerization degree: 1,300), 8 parts by mass of a hydrotalcite type composite thermal stabilizer (manufactured by Nissan Chemical Industries, Ltd., CP-410A) (thermal stabilizer component being 4 parts by mass %), and 1 part by mass of epoxidized soybean oil (ADECA CORPORATION, 0-130P), (b) a step of melt spinning the mixed resin composition at a spinneret temperature of 180° C.
  • a Henschel mixer a resin composition prepared by blending 100 parts by mass of an ethylene/vinyl chloride copolymer resin (manufactured by Taiyo Vinyl
  • Fibers for artificial hair having ethylene contents as identified in Table 1-1 were obtained in the same manner as in Example 1-1.
  • Fibers for artificial hair having the ethylene content adjusted to be 1.5 times of Example 1-1 and having the viscosity average polymerization degree of the ethylene/vinyl chloride copolymer as shown in Table 1-2, were obtained in the same manner as in Example 1-1.
  • Fibers for artificial hair having a vinyl chloride resin content as identified in Table 1-3 were obtained in the same manner as in Example 1-1.
  • the fibers for artificial hair of the present invention can be constantly produced under a low nozzle pressure with little gumming, and the curl retention is excellent.
  • the “flexural rigidity” was measured by using KES-FB2 pure bending tester (manufactured by KATO TECH CO., LTD.). Namely, one fiber having a length of 9 cm, of the fibers (A) or (B), was passed through a jig having a diameter of 0.2 mm and subjected to a pure bending test at a deformation rate of 0.2 (cm ⁇ 1 ) within a curvature range of from ⁇ 2.5 to +2.5 (cm ⁇ 1 ), and an average value of repulsion with one fiber within a curvature range of from 0.5 to 1.5 (cm ⁇ 1 ) was measured.
  • the difference in curl pitch is smaller than 10 mm, such being suitable for an article required to have a tight curl.
  • Good The difference in curl pitch is from 10 to 20 mm, and uniform curling is obtainable.
  • No good The difference in curl pitch is larger than 20 mm, and curling is non-uniform.
  • the “tough” represents the touch when 24,000 fibers comprising fibers (A) and (B) are bundled, and the fibers are frictioned one another, and it was evaluated by the following standards.
  • the touch is soft resembling natural hair.
  • Good The touch is slightly soft resembling natural hair.
  • No good The touch is stiff and hard.
  • Fibers having 160 decitex were obtained by melt spinning a resin composition prepared by blending 100 parts by mass of a vinyl chloride resin (manufactured by Taiyo Vinyl Corp., TH-1000), 3 parts by mass of a hydrotalcite type composite thermal stabilizer (manufactured by Nissan Chemical Industries, Ltd., CP-410A) (thermal stabilizer component being 1.5 parts by mass), 0.5 part by mass of epoxidized soybean oil (manufactured by ADECA CORPORATION, O-130P) and 0.8 part by mass of an ester type lubricant (manufactured by Riken Vitamin Co., Ltd., EW-100) by means of mixed nozzles (circular spinning spinneret having a nozzle section shown in FIG.
  • a resin composition prepared by blending 100 parts by mass of a vinyl chloride resin (manufactured by Taiyo Vinyl Corp., TH-1000), 3 parts by mass of a hydrotalcite type composite thermal stabilizer (manufactured by Nissan Chemical
  • the fibers obtained by the melt spinning were subjected to stretching in an atmosphere of air at 105° C. to 300%. Then, they were thermally treated in an atmosphere of air at 110° C. until the entire length of the fibers shrunk to a length of 75% of the length before the treatment.
  • Y-sectional shape fibers having a flexural rigidity of 2.0 ⁇ 10 ⁇ 2 N ⁇ cm 2 and a fineness of 71 decitex as fibers (A) and spectacled sectional shape fibers having a flexural rigidity of 0.8 ⁇ 10 ⁇ 2 N ⁇ cm 2 and a fineness of 71 decitex as fibers (B) were obtained.
  • the product was a fiber bundle for artificial hair comprising 70 mass % of the fibers (A) and 30 mass % of the fibers (B).
  • Fiber bundles for artificial hair having the sectional shapes and mass % of the fibers (A) and the fibers (B) as identified in Tables 2-1 and 3-1 were obtained in the same manner as in Example 2-1.
  • Fiber bundles for artificial hair were obtained in the same manner as in Example 2-1 except that the sectional shape of the fibers (A) was Y-shape of FIG. 1 and no fibers (B) were contained.
  • a fiber bundle for artificial hair was obtained in the same manner as in Example 2-1 except that the sectional shape of the fibers (B) was a spectacled shape of FIG. 4 and no fibers (A) were contained.
  • Fiber bundles for artificial hair were obtained in the same manner as in Example 2-1 except that in Comparative Example 2-3, the spinneret temperature was changed to 160° C., and in Comparative Example 2-4, the spinneret temperature was changed to 180° C.
  • Fiber bundles for artificial hair were obtained in the same manner as in Example 2-1 except that in Comparative Example 2-5, the fineness of the fibers (A) and the fibers (B) was changed to 100 decitex, and in Comparative Example 2-6, the fineness of the fibers (A) and the fibers (B) was changed to 220 decitex.
  • the fibers for artificial hair and the fiber bundle for artificial hair of the present invention can be suitably employed for hair decoration articles such as wigs, hairpieces, braids, extension hair, accessory hair and doll hair.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
US11/917,197 2005-06-16 2006-06-16 Fiber Bundle for Artificial Hair and Head Decoration Article Comprising the Same Abandoned US20080210250A1 (en)

Applications Claiming Priority (7)

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JP2005176083 2005-06-16
JP2005-176083 2005-06-16
JP2005-203957 2005-07-13
JP2005203958 2005-07-13
JP2005203957 2005-07-13
JP2005-203958 2005-07-13
PCT/JP2006/312160 WO2006135059A1 (ja) 2005-06-16 2006-06-16 人工毛髪用繊維束及びそれを用いた頭髪装飾製品

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JP (1) JP4889635B2 (ja)
KR (1) KR101154906B1 (ja)
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WO (1) WO2006135059A1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102286800A (zh) * 2011-05-30 2011-12-21 上海瑞贝卡纤维材料科技有限公司 一种功能性改性腈纶发用纤维及其制备方法
EP3069625A4 (en) * 2013-11-11 2017-04-26 Toray Monofilament Co., Ltd. Filament for artificial hair and artificial hair product
US11432607B2 (en) * 2017-05-30 2022-09-06 Denka Company Limited Artificial hair fiber
US11885043B2 (en) 2018-08-23 2024-01-30 Kaneka Corporation Acrylic fiber for artificial hair, and head decoration product including same
US12031240B2 (en) 2018-11-29 2024-07-09 Denka Company Limited Fiber for artificial hair and head accessory product

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4722881B2 (ja) * 2007-05-22 2011-07-13 電気化学工業株式会社 合成繊維束、及び合成繊維束の製造方法
KR101959635B1 (ko) * 2017-10-18 2019-03-18 에코융합섬유연구원 브레이드용 가발원사의 땋음성 평가방법

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US3199516A (en) * 1963-09-12 1965-08-10 Reid Meredith Inc Process of making long haired pile fabric and making artificial hairpieces therefrom
US20060154062A1 (en) * 2003-07-25 2006-07-13 Toshihiro Kowaki Flame retardant polyester fiber for artificial hair

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JPH06104928B2 (ja) * 1988-08-18 1994-12-21 鐘淵化学工業株式会社 毛髪用塩化ビニル系繊維およびその製造法
JP2002227020A (ja) 2001-01-30 2002-08-14 Kanegafuchi Chem Ind Co Ltd 人工毛髪繊維及びそれからなる頭飾製品
JP4420819B2 (ja) 2002-08-01 2010-02-24 株式会社カネカ スタイラビリティが改善されたアクリル系合成繊維
JP2004190188A (ja) * 2002-12-12 2004-07-08 Tokuyama Sekisui Ind Corp 人工毛髪用繊維

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US3199516A (en) * 1963-09-12 1965-08-10 Reid Meredith Inc Process of making long haired pile fabric and making artificial hairpieces therefrom
US20060154062A1 (en) * 2003-07-25 2006-07-13 Toshihiro Kowaki Flame retardant polyester fiber for artificial hair

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102286800A (zh) * 2011-05-30 2011-12-21 上海瑞贝卡纤维材料科技有限公司 一种功能性改性腈纶发用纤维及其制备方法
EP3069625A4 (en) * 2013-11-11 2017-04-26 Toray Monofilament Co., Ltd. Filament for artificial hair and artificial hair product
US11432607B2 (en) * 2017-05-30 2022-09-06 Denka Company Limited Artificial hair fiber
US11885043B2 (en) 2018-08-23 2024-01-30 Kaneka Corporation Acrylic fiber for artificial hair, and head decoration product including same
US12031240B2 (en) 2018-11-29 2024-07-09 Denka Company Limited Fiber for artificial hair and head accessory product

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CN100528017C (zh) 2009-08-19
CN101193567A (zh) 2008-06-04
AP2364A (en) 2012-02-10
KR101154906B1 (ko) 2012-06-13
WO2006135059A1 (ja) 2006-12-21
JP4889635B2 (ja) 2012-03-07
AP2007004291A0 (en) 2007-12-31
JPWO2006135059A1 (ja) 2009-01-08
KR20080016792A (ko) 2008-02-22

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