US20160302504A1 - Filament for artificial hair, and artificial hair product - Google Patents
Filament for artificial hair, and artificial hair product Download PDFInfo
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- US20160302504A1 US20160302504A1 US15/035,806 US201415035806A US2016302504A1 US 20160302504 A1 US20160302504 A1 US 20160302504A1 US 201415035806 A US201415035806 A US 201415035806A US 2016302504 A1 US2016302504 A1 US 2016302504A1
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- United States
- Prior art keywords
- filament
- resin
- artificial hair
- hair
- interlobe
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- 239000000835 fiber Substances 0.000 claims abstract description 31
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 6
- 229920006122 polyamide resin Polymers 0.000 claims description 6
- 229920001225 polyester resin Polymers 0.000 claims description 6
- 239000004645 polyester resin Substances 0.000 claims description 6
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 6
- 239000004925 Acrylic resin Substances 0.000 claims description 5
- 229920000178 Acrylic resin Polymers 0.000 claims description 5
- 239000012461 cellulose resin Substances 0.000 claims description 5
- 229920006350 polyacrylonitrile resin Polymers 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000002932 luster Substances 0.000 abstract description 19
- 238000005336 cracking Methods 0.000 abstract description 11
- 238000005259 measurement Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 239000003795 chemical substances by application Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- -1 for example Substances 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000002074 melt spinning Methods 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 239000002216 antistatic agent Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229920002821 Modacrylic Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910002034 SYLYSIA SY730 Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000003811 curling process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 231100000640 hair analysis Toxicity 0.000 description 1
- 230000003699 hair surface Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012796 inorganic flame retardant Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229920006312 vinyl chloride fiber Polymers 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
- A41G3/00—Wigs
- A41G3/0083—Filaments for making wigs
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
- A41G3/00—Wigs
-
- 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
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2503/00—Domestic or personal
- D10B2503/08—Wigs
Definitions
- This disclosure relates to a fiber for artificial hair for use as a hairpiece, a hair wig, a hair extension or the like.
- a modacrylic fiber, a vinyl chloride fiber, a vinylidene chloride fiber, a polyester fiber, a nylon fiber, and the like have been used as fibers for artificial hair.
- synthetic hair products such as hair pieces, hair wigs, hair extensions or the like
- research and development of fibers suitable for such products have been cumulatively made, and studies and improvements on shapes of cross section of fibers have also been performed.
- fibers for artificial hair whose shapes of cross section have a constriction at a central portion such as a spectacles shape or a cocoon shape, have been proposed (refer to, e.g., Japanese Unexamined Patent Publication (Kokai) No. 2007-146306).
- a fiber having a letter Y shape of cross section (refer to, e.g., International Publication WO 2008/029727), a fiber having a letter Y shape of cross section with rounded distal ends (refer to, e.g., Japanese Patent No. 3365141) have been proposed.
- the fiber whose shape of cross section has a constriction at a center portion as proposed in JP '306 does not readily give a volume and inevitably bends in a short-diameter direction. Therefore, there exist problems that the orientations of the fiber become uniform at a curved surface and the luster likely becomes unnatural and that when subjected to curling, the fiber does not easily produce a three-dimensional appearance.
- the fibers having shapes of cross section as proposed in WO '727 and JP '141 improve presentation of a volume, but are subject to yarn cracking or yarn breakage under external force and are not satisfactory in terms of durability.
- a filament for artificial hair which is a filament of a thermoplastic resin and whose shape of a cross section in a direction perpendicular to a fiber axis is a multilobal shape having three or more interlobe gap regions, wherein widths of the interlobe gap regions are 10 to 60% of a width of the filament and depths of the interlobe gap regions are 5 to 30% of a height of the filament.
- the foregoing filament for artificial hair has been used in at least a part of material for hair.
- a filament for artificial hair that is excellent in terms of volume and luster and not subject to yarn cracking or yarn breakage can be obtained as described below.
- FIGS. 1(A) to 1(C) are each a sectional view of a filament for artificial hair according to an example, taken in a direction perpendicular to the fiber axis.
- FIGS. 2(D) to 2(F) are each a sectional view of a filament for artificial hair according to a different example, taken in a direction perpendicular to the fiber axis.
- FIGS. 3(G) to 3(I) are each a sectional view of a filament for artificial hair of a comparative example, taken in a direction perpendicular to the fiber axis.
- FIG. 4 is a schematic view for describing a container for use for measurement of the content rate of interspace among filaments and the measurement.
- FIG. 5(A) is a schematic view of a sample holder for degree-of-luster measurement in which eleven single yarns of a sample have been fixed. Furthermore, FIG. 5(B) is a side view schematically showing the positions of a sample, a light source, and a photoreceiver at the time of the degree-of-luster measurement.
- FIGS. 1(A) to 1(C) and FIGS. 2(D) to 2(E) are each a sectional view of a filament for artificial hair, taken in a direction perpendicular to the fiber axis.
- 1 represents a filament for artificial hair
- 2 represents an interlobe gap region
- 3 represents a lobe region.
- the interlobe gap region refers to a groove that a depression portion in a cross section forms along the fiber axis direction of the filament
- the depression portion in the cross section is also termed the interlobe gap region in this description.
- the lobe region refers to a portion sandwiched between interlobe gap regions adjacent to each other, and is a concept that applies in both a filament and a cross section, as is with the interlobe gap region.
- the filament for artificial hair has a cross section in a direction perpendicular to the fiber axis which is a multilobal shape having three or more interlobe gap regions. It is important that in the cross section, the interlobe gap regions have such a specific shape. Note that in this description, the cross section is assumed to indicate a cross section in a direction perpendicular to the fiber axis unless particularly mentioned regarding the direction of section.
- the multilobal shape has a plurality of interlobe gap regions and lobe regions segmented by the interlobe gap regions.
- the shapes in (A) to (C) of FIG. 1 and (D) of FIG. 2 are called trilobe
- the shape in (E) of FIG. 2 is called tetralobe
- the shape in (F) of FIG. 2 is called pentalobe.
- the widths (W 2 ) of the interlobe gap regions are 10 to 60% of the width (W 1 ) of the filament.
- Such a proportion of the width (W 2 ) of each interlobe gap region to the width (W 1 ) of the filament is a proportion (hereinafter, sometimes mentioned simply as W 2 /W 1 ) is preferred to be greater than or equal to 30% and more preferred to be greater than or equal to 40%.
- the W 2 /W 1 is preferred to be less than or equal to 55% and more preferred to be less than or equal to 50%.
- the depths (H 2 ) of the interlobe gap regions are 5 to 30% of the height (H 1 ) of the filament.
- Such a proportion of the depth (H 2 ) of each interlobe gap region to the height (H 1 ) of the filament is preferred to be greater than or equal to 10% and more preferred to be greater than or equal to 15%.
- the H 2 /H 1 is preferred to be less than or equal to 25% and more preferred to be less than or equal to 20%.
- the width (W 1 ) of the filament, the widths (W 2 ) of the interlobe gap regions, the height (H 1 ) of the filament, and the depths (H 2 ) of the interlobe gap regions are defined as follows. A tangential line that contacts both of two lobe regions adjacent to each other across one interlobe gap region is drawn, and the maximum value of the distance between outlines of the filament measured in a direction parallel with that tangential line is defined as the width (W 1 ) of the filament, and the distance between the two points of contact between the tangential line and the lobe regions is defined as the width (W 2 ) of the interlobe gap region.
- the maximum value of the distance between outlines of the filament measured in a direction perpendicular to the tangential line is defined as the height (H 1 ) of the filament, and the maximum value of the depth of the interlobe gap region measured in the direction perpendicular to the tangential line is defined as the depth (H 2 ) of the interlobe gap region.
- any one of the proportions (W 2 /W 1 ) of the widths of the interlobe gap regions to the width of the filament and the proportions (H 2 /H 1 ) of the depths of the interlobe gap regions to the height of the filament is below the foregoing range, it becomes hard to obtain a desired volume when the filament is used as artificial hair and, furthermore, because protuberances and depressions of the filament surface become small, natural luster also becomes hard to obtain. On the other hand, if any one of them is above the range, the lobe region becomes thin so that yarn cracking and yarn breakage will likely occur.
- the number of lobe regions in the multilobal shape is preferred to be 3 to 8, more preferred to be 3 to 6, and even more preferred to 3 or 4. If the number of lobe regions is outside the foregoing range, it is likely that there will be tendency of it being difficult to satisfy the relation between the width of each interlobe gap region and the width of the filament and the relation between the depth of each interlobe gap region and the height of the filament.
- the kind of the filament does not matter, but the filament is preferred to be a monofilament.
- the shape of cross section of each of the single yarns that constitute the multifilament is to satisfy what are mentioned.
- the fineness of the filament for artificial hair is preferred to be 20 to 150 dtex. As for the fineness, 30 dtex or greater is more preferable and 40 dtex or greater is even more preferable. On the other hand, as for the upper limit thereof, 130 dtex or less is more preferable, 100 dtex or less is even more preferable, and 70 dtex or less is particularly preferable.
- the filament may be a filament of a single fineness, but filaments of a plurality of finesses may be combined for use within the foregoing ranges. Note that, as for the fineness of the filament, in a multifilament, it is assumed that the average value of the finenesses of the single yarns that constitute the multifilament is within the foregoing range.
- the filament for artificial hair is a filament of thermoplastic resin.
- the kind of the thermoplastic resin does not matter but is preferred to be, for example, at least one species selected from the group consisting of polyester resin, polyamide resin, acrylic resin, polyvinyl chloride resin, polyacrylonitrile resin, polyphenylene sulfide resin, and cellulose resin.
- the polyester resin, the polyamide resin, and the polyphenylene sulfide resin are preferable.
- the filament for artificial hair may, according to need, contain a delusterant such as titanium oxide, calcium carbonate, kaolin, or clay, a pigment, a dye, a lubricant, an antioxidant, a heat-resistant agent, an anti-steaming agent, a light resistant agent, an ultraviolet absorbent, an antistatic agent, a fluorescent agent, a plasticizing agent, an antimicrobial agent or the like.
- a delusterant such as titanium oxide, calcium carbonate, kaolin, or clay, a pigment, a dye, a lubricant, an antioxidant, a heat-resistant agent, an anti-steaming agent, a light resistant agent, an ultraviolet absorbent, an antistatic agent, a fluorescent agent, a plasticizing agent, an antimicrobial agent or the like.
- the filament for artificial hair may contain a known organic or inorganic flame retardant such as a phosphorus based or halogen based one, or antimony trioxide, to protect human bodies from the risk of a fire during use.
- a known organic or inorganic flame retardant such as a phosphorus based or halogen based one, or antimony trioxide, to protect human bodies from the risk of a fire during use.
- the filament for artificial hair may be one in which the polyester that constitutes the filament for artificial hair has been modified or one whose surface has been provided with an antistatic agent, for the purpose of preventing the clinging or tangling of the filament due to electric withstanding or the attachment of dust.
- the filament surface may be provided with a known surface active agent such as a silicone based agent to further improve combing properties.
- the tensile strength and the knot tenacity of the filament for artificial hair are preferred to be 1 to 5 cN/dtex and 0.5 to 3 cN/dtex, respectively. If the tensile strength and the knot tenacity are within the foregoing ranges, there is a tendency that, during the processing stage of the artificial hair product, the process passability will be good.
- the bending hardness is preferred to be 0.03 to 0.25 cN. If the bending hardness thereof is within the foregoing range, an elasticity of hair similar to that of human hair is likely to be felt.
- the production method is not particularly limited, but known fiber spinning methods can be adopted. As an example, melt spinning will be described. However, the production method is not limited to this method.
- various raw materials are placed in a hopper.
- various additives may be mixed in and then supplied.
- the raw materials are supplied from the hopper into a single-screw extruder type melt spinning apparatus and melt spinning is performed. It is desirable that the melt temperature at this time be about the melting point of the thermoplastic resin used +20° C.
- the molten polymer is metered by a gear pump in accordance with the final fineness of the filament, the molten polymer is filtrated through a metal filter in a spinning pack and spun out of the oddly shaped spinneret.
- the spun-out undrawn fiber is continuously led into a cooling medium, cooled and solidified.
- a cooling medium for example, water, polyethylene glycol and the like can be cited.
- the cooling medium is not particularly limited as long as the cooling medium can be easily removed from the surface of the filament and does not cause a chemically or physically essential change.
- the cooled and solidified undrawn fiber is subjected to heated single-stage drawing or multi-stage drawing and thermal setting to obtain a strength that the filament needs.
- the heat medium used in this occasion air, warm water, steam, polyethylene glycol, glycerol, silicone oil and the like, can be cited, but the heat medium is also not particularly limited as long as it can be easily removed from the surface of the filament and does not cause a chemically or physically essential change.
- the filament for artificial hair thus obtained is provided with deposit of a finish oil agent according to need, and then wound up.
- the filament for artificial hair obtained as described above may be subjected to known after processes such as dyeing, alkali treatment, a sandblasting process, a crimping process, a yaki process, and a curling process, according to need.
- the artificial hair product is a product in which the foregoing filament for artificial hair is used in at least part of the material for hair and includes hairpieces, hair wigs, hair pieces, hair extensions, attached hair, doll hair, head hair ornaments and the like. These artificial hair products can be produced by known methods. The production methods for the artificial hair products themselves are not particularly limited.
- Fineness [ d tex] mass [ g ] ⁇ 10000/2.
- a filament sample of 30 m was cut at every 1 m. From those, five samples were arbitrarily extracted. With respect to the five extracted samples, samples for section observation cut out in a direction perpendicular to the fiber axis direction of the filament were created. These samples were observed by using a digital microscope (VHX-500F, made by Keyence Corp.), and lengths mentioned below were measured with a main measurement tool.
- VHX-500F digital microscope
- the tensile stress [N] and the elongation (at break) [%], and the knot stress [N] and the elongation (at break) [%] of each filament were measured according to JIS L1013: 2010 8.5.1 and 8.6.1.
- JIS L1013: 2010 8.5.1 and 8.6.1 JIS L1013: 2010 8.5.1 and 8.6.1.
- Bundles of straight artificial hair of 10 cm in length were prepared. These samples were put, in a predetermined amount, in order in parallel with the length direction within a container shown in FIG. 4 , and a load of 27 g (an aluminum square bar of 10 ⁇ 10 ⁇ 100 mm) was applied, and the heights h [mm] thereof were measured during a period of 5 to 10 seconds after the load was applied. Furthermore, the mass m [g] of the samples within the container was measured.
- the predetermined amount refers to an amount such that the heights following application of the load become 5 to 10 mm.
- a sample for section observation cut out in the direction perpendicular to the fiber axis direction of the filament was obtained.
- observation was performed by using a digital microscope (VHX-500F, made by Keyence), and a sectional area A [mm 2 ] of a single yarn measured by using the main measurement tool.
- VHX-500F digital microscope
- a sample holder having at its center a hole of 36 mm in diameter was used. Eleven single yarns of the sample fixed equidistantly within a width of 6 mm in total formed by 3 mm to both sides from the center line of the hole were a sample.
- the light source aperture was 10.5 mm in diameter, and the light receiving aperture was 9.1 mm in diameter.
- a reflectance with respect to the reflection angle was measured by directing light at an incident angle of 30° and rotating the photoreceiver 0 to 90° as shown in FIG. 5(B) .
- the G value is an indicator of shine, greater G values indicate that the shine caused by regular reflection is stronger and therefore that the luster is stronger.
- the half-value width is an indicator of glariness. As the half-value width is smaller, the directionality of reflection is higher, giving greater glarinesses and, therefore, it is indicated that the luster is strong.
- a bundle of straight artificial hair of 40 cm in length and 150 g in mass was compared to a human hair bundle at a window inside a room with direct sunlight striking. Determinations based on views with an incident angle of the sunlight being 10° to 55° were made. Furthermore, an artificial hair bundle of the same amount was curled by using a curling iron of 32 mm in diameter under a condition of 130° C. ⁇ 30 seconds, and compared to a human hair bundle at a window inside a room with direct sunlight striking. Determinations based on views with an incident angle of the sunlight being 10° to 55° were made.
- the evaluation references for the determinations were as follows:
- a polyethylene terephthalate chip containing 2.5 mass % of a cohesive silicon oxide particle (having an average particle diameter of 2.43 ⁇ m) and having a limiting viscosity (measured at 25° C. in a 1:1 mixed solvent of phenol and tetrachlorethane) of 0.97 was dried in vacuum at 165° C. for 9 hours.
- the chip was supplied into an extrusion type fiber spinning machine at 285° C., and a heated and molten resin composition extruded from a trilobal nozzle that corresponds to the yarn's shape of cross section in FIG. 1(A) and immediately cooled in water at 30° C. and, subsequently, put in warm water at 55° C. and then under a 100° C. dry hot condition where the drawing to 4.1 times was performed. After that, a relaxation heat treatment was performed in a dry hot atmosphere.
- the wound-up monofilament was dipped, as an alkali treatment, into a sodium hydroxide solution to subject the material for hair surface to dissolving processing. Then, washing and drying was performed to obtain a straight polyester monofilament.
- This polyester monofilament was dyed black by using a dyeing method that is a usual method in a high-pressure dyeing machine. Next, using a washing method that is a usual method, reduction cleaning was performed to obtain a straight finish-dyed monofilament for artificial hair.
- a straight monofilament for artificial hair was obtained in substantially the same manner as in Example 1 except that a polyethylene terephthalate chip containing 1.5 mas % of a colloidal silica (Sylysia 730, made by Fuji Silysia Chemical) and having a limiting viscosity of 1.10 was used and the extrusion nozzle changed to a trilobal nozzle that corresponds to the yarn's shape of cross section in FIG. 1(C) .
- a polyethylene terephthalate chip containing 1.5 mas % of a colloidal silica (Sylysia 730, made by Fuji Silysia Chemical) and having a limiting viscosity of 1.10 was used and the extrusion nozzle changed to a trilobal nozzle that corresponds to the yarn's shape of cross section in FIG. 1(C) .
- the filaments for artificial hair having shapes of cross section that do not satisfy our conditions were not only unnatural in terms of volume and luster but also subject to yarn cracking and yarn breakage and therefore unsuitable for use as a filament for artificial hair.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Abstract
Description
- This disclosure relates to a fiber for artificial hair for use as a hairpiece, a hair wig, a hair extension or the like.
- A modacrylic fiber, a vinyl chloride fiber, a vinylidene chloride fiber, a polyester fiber, a nylon fiber, and the like have been used as fibers for artificial hair. In connection with manufacturing artificial hair products such as hair pieces, hair wigs, hair extensions or the like, through the use of these fibers, research and development of fibers suitable for such products have been cumulatively made, and studies and improvements on shapes of cross section of fibers have also been performed.
- For example, fibers for artificial hair whose shapes of cross section have a constriction at a central portion such as a spectacles shape or a cocoon shape, have been proposed (refer to, e.g., Japanese Unexamined Patent Publication (Kokai) No. 2007-146306).
- Furthermore, a fiber having a letter Y shape of cross section (refer to, e.g., International Publication WO 2008/029727), a fiber having a letter Y shape of cross section with rounded distal ends (refer to, e.g., Japanese Patent No. 3365141) have been proposed.
- However, the fiber whose shape of cross section has a constriction at a center portion as proposed in JP '306 does not readily give a volume and inevitably bends in a short-diameter direction. Therefore, there exist problems that the orientations of the fiber become uniform at a curved surface and the luster likely becomes unnatural and that when subjected to curling, the fiber does not easily produce a three-dimensional appearance. The fibers having shapes of cross section as proposed in WO '727 and JP '141 improve presentation of a volume, but are subject to yarn cracking or yarn breakage under external force and are not satisfactory in terms of durability.
- It could therefore be helpful to provide a filament for artificial hair that is excellent in terms of volume and luster and not subject to yarn cracking or yarn breakage.
- We thus provide a filament for artificial hair which is a filament of a thermoplastic resin and whose shape of a cross section in a direction perpendicular to a fiber axis is a multilobal shape having three or more interlobe gap regions, wherein widths of the interlobe gap regions are 10 to 60% of a width of the filament and depths of the interlobe gap regions are 5 to 30% of a height of the filament.
- As for the filament for artificial hair,
-
- the number of the multilobal shaped lobe regions is 3 to 8,
- the fineness of single filament is 20 to 150 dtex, and
- the thermoplastic resin is at least one species selected from the group consisting of a polyester resin, a polyamide resin, an acrylic resin, a polyvinyl chloride resin, a polyacrylonitrile resin, a polyphenylene sulfide resin, and a cellulose resin, are cited as preferable conditions. If these conditions are satisfied, further excellent performance will be delivered.
- Furthermore, the foregoing filament for artificial hair has been used in at least a part of material for hair.
- A filament for artificial hair that is excellent in terms of volume and luster and not subject to yarn cracking or yarn breakage can be obtained as described below.
-
FIGS. 1(A) to 1(C) are each a sectional view of a filament for artificial hair according to an example, taken in a direction perpendicular to the fiber axis. -
FIGS. 2(D) to 2(F) are each a sectional view of a filament for artificial hair according to a different example, taken in a direction perpendicular to the fiber axis. -
FIGS. 3(G) to 3(I) are each a sectional view of a filament for artificial hair of a comparative example, taken in a direction perpendicular to the fiber axis. -
FIG. 4 is a schematic view for describing a container for use for measurement of the content rate of interspace among filaments and the measurement. -
FIG. 5(A) is a schematic view of a sample holder for degree-of-luster measurement in which eleven single yarns of a sample have been fixed. Furthermore,FIG. 5(B) is a side view schematically showing the positions of a sample, a light source, and a photoreceiver at the time of the degree-of-luster measurement. -
- 1: filament for artificial hair
- 2: interlobe gap region
- 3: lobe region
- 4: load
- 5: sample holder
- 6: light source
- 7: incident angle (30°)
- 8: photoreceiver (position with a reflection angle of 0°)
- 9: photoreceiver (position with a reflection angle of 90°)
- H1: height of a filament
- H2: depth of an interlobe gap region
- W1: width of a filament
- W2: width of an interlobe gap region
- Hereinafter, the filament for artificial hair will be described with reference to the drawings.
FIGS. 1(A) to 1(C) andFIGS. 2(D) to 2(E) are each a sectional view of a filament for artificial hair, taken in a direction perpendicular to the fiber axis. In the drawings, 1 represents a filament for artificial hair, 2 represents an interlobe gap region, and 3 represents a lobe region. Note that although the interlobe gap region refers to a groove that a depression portion in a cross section forms along the fiber axis direction of the filament, the depression portion in the cross section is also termed the interlobe gap region in this description. Furthermore, the lobe region refers to a portion sandwiched between interlobe gap regions adjacent to each other, and is a concept that applies in both a filament and a cross section, as is with the interlobe gap region. - The filament for artificial hair has a cross section in a direction perpendicular to the fiber axis which is a multilobal shape having three or more interlobe gap regions. It is important that in the cross section, the interlobe gap regions have such a specific shape. Note that in this description, the cross section is assumed to indicate a cross section in a direction perpendicular to the fiber axis unless particularly mentioned regarding the direction of section.
- The multilobal shape has a plurality of interlobe gap regions and lobe regions segmented by the interlobe gap regions. For example, the shapes in (A) to (C) of
FIG. 1 and (D) ofFIG. 2 are called trilobe, the shape in (E) ofFIG. 2 is called tetralobe, and the shape in (F) ofFIG. 2 is called pentalobe. - In the filament for artificial hair, the widths (W2) of the interlobe gap regions are 10 to 60% of the width (W1) of the filament. Such a proportion of the width (W2) of each interlobe gap region to the width (W1) of the filament is a proportion (hereinafter, sometimes mentioned simply as W2/W1) is preferred to be greater than or equal to 30% and more preferred to be greater than or equal to 40%. On the other hand, as for the upper limit, the W2/W1 is preferred to be less than or equal to 55% and more preferred to be less than or equal to 50%. Furthermore, in the filament for artificial hair, the depths (H2) of the interlobe gap regions are 5 to 30% of the height (H1) of the filament. Such a proportion of the depth (H2) of each interlobe gap region to the height (H1) of the filament (hereinafter, sometimes mentioned simply as H2/H1) is preferred to be greater than or equal to 10% and more preferred to be greater than or equal to 15%. On the other hand, as for the upper limit, the H2/H1 is preferred to be less than or equal to 25% and more preferred to be less than or equal to 20%. Note that, satisfaction of the foregoing relations by the values of the width (W1) of the filament, the widths (W2) of the interlobe gap regions, the height (H1) of the filament, and the depths (H2) of the interlobe gap regions is satisfaction of the foregoing relations by the foregoing values found for each interlobe gap region of all the interlobe gap regions in the cross section of the filament.
- The width (W1) of the filament, the widths (W2) of the interlobe gap regions, the height (H1) of the filament, and the depths (H2) of the interlobe gap regions are defined as follows. A tangential line that contacts both of two lobe regions adjacent to each other across one interlobe gap region is drawn, and the maximum value of the distance between outlines of the filament measured in a direction parallel with that tangential line is defined as the width (W1) of the filament, and the distance between the two points of contact between the tangential line and the lobe regions is defined as the width (W2) of the interlobe gap region. The maximum value of the distance between outlines of the filament measured in a direction perpendicular to the tangential line is defined as the height (H1) of the filament, and the maximum value of the depth of the interlobe gap region measured in the direction perpendicular to the tangential line is defined as the depth (H2) of the interlobe gap region.
- If any one of the proportions (W2/W1) of the widths of the interlobe gap regions to the width of the filament and the proportions (H2/H1) of the depths of the interlobe gap regions to the height of the filament is below the foregoing range, it becomes hard to obtain a desired volume when the filament is used as artificial hair and, furthermore, because protuberances and depressions of the filament surface become small, natural luster also becomes hard to obtain. On the other hand, if any one of them is above the range, the lobe region becomes thin so that yarn cracking and yarn breakage will likely occur.
- In the filament for artificial hair, the number of lobe regions in the multilobal shape is preferred to be 3 to 8, more preferred to be 3 to 6, and even more preferred to 3 or 4. If the number of lobe regions is outside the foregoing range, it is likely that there will be tendency of it being difficult to satisfy the relation between the width of each interlobe gap region and the width of the filament and the relation between the depth of each interlobe gap region and the height of the filament.
- With regard to the kind of the filament, the kind such as a multifilament, a monofilament or the like, does not matter, but the filament is preferred to be a monofilament. Note that in a multifilament, the shape of cross section of each of the single yarns that constitute the multifilament is to satisfy what are mentioned.
- Furthermore, the fineness of the filament for artificial hair is preferred to be 20 to 150 dtex. As for the fineness, 30 dtex or greater is more preferable and 40 dtex or greater is even more preferable. On the other hand, as for the upper limit thereof, 130 dtex or less is more preferable, 100 dtex or less is even more preferable, and 70 dtex or less is particularly preferable. Furthermore, the filament may be a filament of a single fineness, but filaments of a plurality of finesses may be combined for use within the foregoing ranges. Note that, as for the fineness of the filament, in a multifilament, it is assumed that the average value of the finenesses of the single yarns that constitute the multifilament is within the foregoing range.
- Furthermore, the filament for artificial hair is a filament of thermoplastic resin. As long as the filament is of thermoplastic resin, the kind of the thermoplastic resin does not matter but is preferred to be, for example, at least one species selected from the group consisting of polyester resin, polyamide resin, acrylic resin, polyvinyl chloride resin, polyacrylonitrile resin, polyphenylene sulfide resin, and cellulose resin. Among these, particularly the polyester resin, the polyamide resin, and the polyphenylene sulfide resin are preferable.
- Furthermore, the filament for artificial hair may, according to need, contain a delusterant such as titanium oxide, calcium carbonate, kaolin, or clay, a pigment, a dye, a lubricant, an antioxidant, a heat-resistant agent, an anti-steaming agent, a light resistant agent, an ultraviolet absorbent, an antistatic agent, a fluorescent agent, a plasticizing agent, an antimicrobial agent or the like.
- The filament for artificial hair may contain a known organic or inorganic flame retardant such as a phosphorus based or halogen based one, or antimony trioxide, to protect human bodies from the risk of a fire during use.
- The filament for artificial hair may be one in which the polyester that constitutes the filament for artificial hair has been modified or one whose surface has been provided with an antistatic agent, for the purpose of preventing the clinging or tangling of the filament due to electric withstanding or the attachment of dust.
- In the filament for artificial hair, the filament surface may be provided with a known surface active agent such as a silicone based agent to further improve combing properties.
- Furthermore, the tensile strength and the knot tenacity of the filament for artificial hair are preferred to be 1 to 5 cN/dtex and 0.5 to 3 cN/dtex, respectively. If the tensile strength and the knot tenacity are within the foregoing ranges, there is a tendency that, during the processing stage of the artificial hair product, the process passability will be good.
- Furthermore, as for the filament for artificial hair, the bending hardness is preferred to be 0.03 to 0.25 cN. If the bending hardness thereof is within the foregoing range, an elasticity of hair similar to that of human hair is likely to be felt.
- Next, a production method for the filament for artificial hair will be described. However, the production method is not particularly limited, but known fiber spinning methods can be adopted. As an example, melt spinning will be described. However, the production method is not limited to this method.
- First, various raw materials are placed in a hopper. At this stage, various additives may be mixed in and then supplied. The raw materials are supplied from the hopper into a single-screw extruder type melt spinning apparatus and melt spinning is performed. It is desirable that the melt temperature at this time be about the melting point of the thermoplastic resin used +20° C. After the molten polymer is metered by a gear pump in accordance with the final fineness of the filament, the molten polymer is filtrated through a metal filter in a spinning pack and spun out of the oddly shaped spinneret.
- Next, the spun-out undrawn fiber is continuously led into a cooling medium, cooled and solidified. As the cooling medium, for example, water, polyethylene glycol and the like can be cited. However, the cooling medium is not particularly limited as long as the cooling medium can be easily removed from the surface of the filament and does not cause a chemically or physically essential change.
- Then, the cooled and solidified undrawn fiber is subjected to heated single-stage drawing or multi-stage drawing and thermal setting to obtain a strength that the filament needs. As for the heat medium used in this occasion, air, warm water, steam, polyethylene glycol, glycerol, silicone oil and the like, can be cited, but the heat medium is also not particularly limited as long as it can be easily removed from the surface of the filament and does not cause a chemically or physically essential change.
- The filament for artificial hair thus obtained is provided with deposit of a finish oil agent according to need, and then wound up.
- The filament for artificial hair obtained as described above may be subjected to known after processes such as dyeing, alkali treatment, a sandblasting process, a crimping process, a yaki process, and a curling process, according to need.
- The artificial hair product is a product in which the foregoing filament for artificial hair is used in at least part of the material for hair and includes hairpieces, hair wigs, hair pieces, hair extensions, attached hair, doll hair, head hair ornaments and the like. These artificial hair products can be produced by known methods. The production methods for the artificial hair products themselves are not particularly limited.
- Hereinafter, our filaments and products will be concretely described with reference to examples, but are not limited these examples. In the examples and the comparative examples, evaluation of the filament for artificial hair and the artificial hair was performed by methods as follows. In each test, measurement was performed after the sample was left for 24 hours or more under conditions that the temperature was 20±2° C. and the relative humidity was 65±4%. Measurement was performed with the number n of measurements being 1, unless particularly mentioned.
- Four samples of 500 mm were accurately taken by applying an initial load stipulated in JIS L1013:2010, and the masses were measured. Using the following expression, the finenesses thereof were calculated:
-
Fineness [dtex]=mass [g]×10000/2. - A filament sample of 30 m was cut at every 1 m. From those, five samples were arbitrarily extracted. With respect to the five extracted samples, samples for section observation cut out in a direction perpendicular to the fiber axis direction of the filament were created. These samples were observed by using a digital microscope (VHX-500F, made by Keyence Corp.), and lengths mentioned below were measured with a main measurement tool.
- A tangential line contacting both of two lobe regions adjacent to each other across one interlobe gap region was drawn, and the maximum value of the distance in a direction parallel with the tangential line between outlines of the filament (the width of the filament: W1), the distance between the two points of contact between the tangential line and the lobe regions (the width of the interlobe gap region: W2), the maximum value of the distance in a direction perpendicular to the tangential line between outlines of the filament (the height of the filament: H1), and the maximum value of the depth of the interlobe gap region in the direction perpendicular to the tangential line (the depth of the interlobe gap region: H2) were measured. These values were measured for each of the interlobe gap regions of each sample. Table 1 shows results about each interlobe gap region with regard to one sample as a representative.
- The tensile stress [N] and the elongation (at break) [%], and the knot stress [N] and the elongation (at break) [%] of each filament were measured according to JIS L1013: 2010 8.5.1 and 8.6.1. For the measurement, an Autograph AG-50NIS made by Shimadzu Corporation, with a flat chuck attached was used, and a test with n=5 was performed in conditions that the sample's length was 25 cm and the tension speed was 30 cm/min.
- Artificial hair bundles of 40 cm in length and 150 g in mass were created, comparison thereof with the same quantity of human hair samples based on sensory evaluations was made by ten people. The evaluation references were as follows:
-
- ◯: Eight or more people determined that the artificial hair had a volume equivalent to that of the human hair.
- Δ: Five to seven people determined that the artificial hair had a volume equivalent to that of the human hair.
- ×: It was four or less people that determined that the artificial hair had a volume equivalent to that of the human hair.
- Bundles of straight artificial hair of 10 cm in length were prepared. These samples were put, in a predetermined amount, in order in parallel with the length direction within a container shown in
FIG. 4 , and a load of 27 g (an aluminum square bar of 10×10×100 mm) was applied, and the heights h [mm] thereof were measured during a period of 5 to 10 seconds after the load was applied. Furthermore, the mass m [g] of the samples within the container was measured. The predetermined amount refers to an amount such that the heights following application of the load become 5 to 10 mm. - Next, using the same sample, a sample for section observation cut out in the direction perpendicular to the fiber axis direction of the filament was obtained. With regard to the sample for section observation, observation was performed by using a digital microscope (VHX-500F, made by Keyence), and a sectional area A [mm2] of a single yarn measured by using the main measurement tool. As for the sectional area, measurements with n=50 were taken and an average value found.
- From the foregoing measurement values, the content rate of interspace among filaments was calculated by using the following expression:
-
- A “GP-200” made by MURAKAMI COLOR RESEARCH LABORATORY CO., Ltd. was used as a degree-of-luster meter. As shown in
FIG. 5(A) , a sample holder having at its center a hole of 36 mm in diameter was used. Eleven single yarns of the sample fixed equidistantly within a width of 6 mm in total formed by 3 mm to both sides from the center line of the hole were a sample. The light source aperture was 10.5 mm in diameter, and the light receiving aperture was 9.1 mm in diameter. A reflectance with respect to the reflection angle was measured by directing light at an incident angle of 30° and rotating the photoreceiver 0 to 90° as shown inFIG. 5(B) . As for the G value, calculation was performed on the basis of the reflectance d at a reflection angle of 0° and the maximum reflectance Sf appearing near a reflection angle of 30°, by using expression (2), and the sample was changed for every measurement, and an average value of G values with n=5 was calculated. The G value is an indicator of shine, greater G values indicate that the shine caused by regular reflection is stronger and therefore that the luster is stronger. -
G value=Sf/d (2) - With regard to the half-value width, an average value of values (n=5) obtained at every time of measurement was calculated. The half-value width is an indicator of glariness. As the half-value width is smaller, the directionality of reflection is higher, giving greater glarinesses and, therefore, it is indicated that the luster is strong.
- A bundle of straight artificial hair of 40 cm in length and 150 g in mass was compared to a human hair bundle at a window inside a room with direct sunlight striking. Determinations based on views with an incident angle of the sunlight being 10° to 55° were made. Furthermore, an artificial hair bundle of the same amount was curled by using a curling iron of 32 mm in diameter under a condition of 130° C.×30 seconds, and compared to a human hair bundle at a window inside a room with direct sunlight striking. Determinations based on views with an incident angle of the sunlight being 10° to 55° were made. The evaluation references for the determinations were as follows:
-
- ◯: dull luster similar to that of human hair
- Δ: fairly strong luster
- ×: strong luster.
- An artificial hair bundle of 30 cm in length and 11 g in mass was created, and an end of the hair bundle fixed. On a horizontal table, a spherical weight of 5 kg in mass was rolled for 20 back-and-forth movements in a direction perpendicular to the length direction of the hair, and then a wig-dedicated brush made of metal run until there was no entanglement of hair. After this process was repeated five times, the hair bundle was observed with a microscope. The evaluation references were as follows:
-
- ◯: Yarn cracking or hair-end yarn breakage was not observed at all.
- ×: Yarn cracking or hair-end yarn breakage was observed in some yarns.
- Filament samples cut into a length of about 4 cm were prepared. Each sample was set under two stainless steel bars of 2 mm in diameter placed at an interval of 10 mm in a horizontal direction to contact the stainless steel bars and, at a center of each stainless steel bar, a hook of 1 mm in diameter made of stainless steel was hooked on the sample. Using a “TCM-200 type Universal Tensile and Compression Tester” made by Minebea Co., Ltd., the hook made of stainless steel was pulled upward at a speed of 50 mm/min. The maximum stress that occurred was determined as a bending hardness. The measurement was performed, with n=3, and an average value was found.
- A polyethylene terephthalate chip containing 2.5 mass % of a cohesive silicon oxide particle (having an average particle diameter of 2.43 μm) and having a limiting viscosity (measured at 25° C. in a 1:1 mixed solvent of phenol and tetrachlorethane) of 0.97 was dried in vacuum at 165° C. for 9 hours. The chip was supplied into an extrusion type fiber spinning machine at 285° C., and a heated and molten resin composition extruded from a trilobal nozzle that corresponds to the yarn's shape of cross section in
FIG. 1(A) and immediately cooled in water at 30° C. and, subsequently, put in warm water at 55° C. and then under a 100° C. dry hot condition where the drawing to 4.1 times was performed. After that, a relaxation heat treatment was performed in a dry hot atmosphere. - Next, the wound-up monofilament was dipped, as an alkali treatment, into a sodium hydroxide solution to subject the material for hair surface to dissolving processing. Then, washing and drying was performed to obtain a straight polyester monofilament.
- This polyester monofilament was dyed black by using a dyeing method that is a usual method in a high-pressure dyeing machine. Next, using a washing method that is a usual method, reduction cleaning was performed to obtain a straight finish-dyed monofilament for artificial hair.
- Properties of the obtained filament for artificial hair are shown in Table 1.
- A straight monofilament for artificial hair was obtained in substantially the same manner as in Example 1 except that a polyethylene terephthalate chip containing 1.5 mas % of a colloidal silica (Sylysia 730, made by Fuji Silysia Chemical) and having a limiting viscosity of 1.10 was used and the extrusion nozzle changed to a trilobal nozzle that corresponds to the yarn's shape of cross section in
FIG. 1(C) . - Properties of the obtained filament for artificial hair are shown in Table 1. Examples 3 and 4 and Comparative Examples 1 to 3
- Straight monofilaments for artificial hair were obtained in substantially the same manner as in Example 2, except that the extrusion nozzle was changed to nozzles that correspond to their respective shapes shown in Table 1.
- Properties of the obtained filaments for artificial hair are shown in Table 1.
-
TABLE 1 Comparative Comparative Comparative Example 1 Example 2 Example 3 Example 4 Example 1 Example 2 Example 3 Shape of * Trilobe (A) Trilobe (C) Trilobe (D) Tetralobe (E) Trilobe (G) Tetralobe (H) Cocoon shape cross W2/W1 · 100 % 41 40 40 44 48 44 55 53 50 44 40 43 45 81 86 77 85 86 88 92 36 44 section H2/H1 · 100 % 24 24 25 23 26 25 14 13 13 18 20 18 18 18 19 18 38 35 38 37 15 16 Fineness dtex 45 48 51 45 46 47 52 Tensile Strength cN/dtex 2.32 2.27 2.78 2.44 2.13 2.18 2.60 Elongation % 34.2 36.3 31.2 35.4 42.3 46.8 22.2 Knot Tenacity cN/dtex 2.13 2.29 2.25 2.14 1.54 1.20 2.17 Elongation % 18.5 17.2 17.7 16.6 14.6 12.3 15.2 Volume — ∘ ∘ ∘ ∘ x x Δ Content rate of interspace % 56.2 65.4 55.3 52.1 74.1 69.6 29.8 among filaments Degree of G value — 14.2 16.8 22.4 18.5 31.9 46.7 7.1 luster Half-value ° 9.2 10.5 8.3 11.9 6.4 3.9 13.5 width Luster Straight — ∘ ∘ ∘ ∘ Δ Δ Δ Curled — ∘ ∘ ∘ ∘ Δ Δ x Yarn cracking/yarn — ∘ ∘ ∘ ∘ x x ∘ Breakage Bending hardness cN 0.09 0.11 0.12 0.09 0.15 0.12 0.08 * The Roman letter within the parentheses indicates the corresponding one of the shapes of cross section in FIGS. 1 to 3. - From Table 1, we confirmed that the filaments for artificial hair of our examples are excellent in terms of volume and luster and not subject to yarn cracking or yarn breakage.
- On the other hand, the filaments for artificial hair having shapes of cross section that do not satisfy our conditions (Comparative Examples 1 to 3) were not only unnatural in terms of volume and luster but also subject to yarn cracking and yarn breakage and therefore unsuitable for use as a filament for artificial hair.
Claims (12)
Applications Claiming Priority (3)
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JP2013-232698 | 2013-11-11 | ||
JP2013232698 | 2013-11-11 | ||
PCT/JP2014/079476 WO2015068771A1 (en) | 2013-11-11 | 2014-11-06 | Filament for artificial hair and artificial hair product |
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US20160302504A1 true US20160302504A1 (en) | 2016-10-20 |
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US15/035,806 Abandoned US20160302504A1 (en) | 2013-11-11 | 2014-11-06 | Filament for artificial hair, and artificial hair product |
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US (1) | US20160302504A1 (en) |
EP (1) | EP3069625B1 (en) |
JP (1) | JP6970399B2 (en) |
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CN (1) | CN105934172A (en) |
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US11013280B2 (en) * | 2018-09-05 | 2021-05-25 | Chang Moo LEE | Method and apparatus for manufacturing fiber for synthetic hair |
US20210164130A1 (en) * | 2018-08-23 | 2021-06-03 | Kaneka Corporation | Acrylic fiber for artificial hair, and head decoration product including same |
WO2025081122A1 (en) * | 2023-10-11 | 2025-04-17 | Lillian Augusta Llc | Artificial plant-based hair fibers and methods of preparing and use thereof |
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CN106521695A (en) * | 2016-10-20 | 2017-03-22 | 河南瑞贝卡发制品股份有限公司 | Production method of low-brightness hair fibers |
CN107034547A (en) * | 2016-11-08 | 2017-08-11 | 河南瑞贝卡发制品股份有限公司 | Polyvinyl chloride fibers for hair production method |
WO2018221348A1 (en) * | 2017-05-30 | 2018-12-06 | デンカ株式会社 | Artificial hair fiber |
EP3760769A1 (en) | 2019-07-02 | 2021-01-06 | Carl Freudenberg KG | Irregularly shaped polymer fibers |
CN112962159A (en) * | 2021-03-01 | 2021-06-15 | 太仓逸枫化纤有限公司 | High-strength polyester filament yarn, preparation method and preparation device |
CN117449023B (en) * | 2023-12-26 | 2024-03-15 | 吴江福华织造有限公司 | Functional fabric and preparation method thereof |
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2014
- 2014-11-06 EP EP14860534.8A patent/EP3069625B1/en not_active Not-in-force
- 2014-11-06 KR KR1020167014148A patent/KR20160085792A/en not_active Withdrawn
- 2014-11-06 JP JP2015518671A patent/JP6970399B2/en active Active
- 2014-11-06 WO PCT/JP2014/079476 patent/WO2015068771A1/en active Application Filing
- 2014-11-06 US US15/035,806 patent/US20160302504A1/en not_active Abandoned
- 2014-11-06 CN CN201480061684.4A patent/CN105934172A/en active Pending
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US6841247B2 (en) * | 2002-08-16 | 2005-01-11 | Honeywell International Inc. | Fibers having improved dullness and products containing the same |
US20080085957A1 (en) * | 2004-04-13 | 2008-04-10 | Kaneka Corporation | Flame-Retardant Polyester Artificial Hair |
US7906209B2 (en) * | 2006-09-21 | 2011-03-15 | Kaneka Corporation | Fiber for artificial hair with improved processability and hair accessory using the same |
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US20210164130A1 (en) * | 2018-08-23 | 2021-06-03 | Kaneka Corporation | Acrylic fiber for artificial hair, and head decoration product including same |
US11885043B2 (en) * | 2018-08-23 | 2024-01-30 | Kaneka Corporation | Acrylic fiber for artificial hair, and head decoration product including same |
US11013280B2 (en) * | 2018-09-05 | 2021-05-25 | Chang Moo LEE | Method and apparatus for manufacturing fiber for synthetic hair |
WO2025081122A1 (en) * | 2023-10-11 | 2025-04-17 | Lillian Augusta Llc | Artificial plant-based hair fibers and methods of preparing and use thereof |
Also Published As
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KR20160085792A (en) | 2016-07-18 |
JP6970399B2 (en) | 2021-11-24 |
PH12016500849A1 (en) | 2016-06-13 |
JPWO2015068771A1 (en) | 2017-03-09 |
EP3069625A1 (en) | 2016-09-21 |
EP3069625A4 (en) | 2017-04-26 |
CN105934172A (en) | 2016-09-07 |
PH12016500849B1 (en) | 2016-06-13 |
WO2015068771A1 (en) | 2015-05-14 |
EP3069625B1 (en) | 2019-01-02 |
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