WO2023021883A1 - Fibers for artificial hair, fiber bundle for artificial hair, and hair decoration product - Google Patents
Fibers for artificial hair, fiber bundle for artificial hair, and hair decoration product Download PDFInfo
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- WO2023021883A1 WO2023021883A1 PCT/JP2022/027264 JP2022027264W WO2023021883A1 WO 2023021883 A1 WO2023021883 A1 WO 2023021883A1 JP 2022027264 W JP2022027264 W JP 2022027264W WO 2023021883 A1 WO2023021883 A1 WO 2023021883A1
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- WIPO (PCT)
- Prior art keywords
- mass
- artificial hair
- fiber
- less
- fibers
- Prior art date
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 188
- 238000005034 decoration Methods 0.000 title claims abstract description 13
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 74
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims abstract description 67
- 125000003118 aryl group Chemical group 0.000 claims abstract description 64
- 229920000642 polymer Polymers 0.000 claims abstract description 64
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 49
- 239000000178 monomer Substances 0.000 claims description 48
- -1 styrene compound Chemical class 0.000 claims description 39
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 37
- 150000001875 compounds Chemical class 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 description 30
- 239000000314 lubricant Substances 0.000 description 21
- 239000012760 heat stabilizer Substances 0.000 description 17
- 230000003766 combability Effects 0.000 description 16
- 230000009477 glass transition Effects 0.000 description 15
- 229920001577 copolymer Polymers 0.000 description 12
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000011342 resin composition Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 8
- 239000002585 base Substances 0.000 description 8
- 238000002074 melt spinning Methods 0.000 description 8
- 239000002216 antistatic agent Substances 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 238000004898 kneading Methods 0.000 description 6
- UTOPWMOLSKOLTQ-UHFFFAOYSA-N octacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O UTOPWMOLSKOLTQ-UHFFFAOYSA-N 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- 229920001519 homopolymer Polymers 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000008188 pellet Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 125000005396 acrylic acid ester group Chemical group 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 229920006164 aromatic vinyl copolymer Polymers 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000002788 crimping Methods 0.000 description 3
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical class CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 229960001545 hydrotalcite Drugs 0.000 description 3
- 229910001701 hydrotalcite Inorganic materials 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229920005594 polymer fiber Polymers 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 150000003440 styrenes Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 2
- LRQGFQDEQPZDQC-UHFFFAOYSA-N 1-Phenyl-1,3-eicosanedione Chemical compound CCCCCCCCCCCCCCCCCC(=O)CC(=O)C1=CC=CC=C1 LRQGFQDEQPZDQC-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- PZGVVCOOWYSSGB-UHFFFAOYSA-L but-2-enedioate;dioctyltin(2+) Chemical compound CCCCCCCC[Sn]1(CCCCCCCC)OC(=O)C=CC(=O)O1 PZGVVCOOWYSSGB-UHFFFAOYSA-L 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 229960000541 cetyl alcohol Drugs 0.000 description 2
- KRGNPJFAKZHQPS-UHFFFAOYSA-N chloroethene;ethene Chemical group C=C.ClC=C KRGNPJFAKZHQPS-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- NZZIMKJIVMHWJC-UHFFFAOYSA-N dibenzoylmethane Chemical compound C=1C=CC=CC=1C(=O)CC(=O)C1=CC=CC=C1 NZZIMKJIVMHWJC-UHFFFAOYSA-N 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- 229920001038 ethylene copolymer Polymers 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229940043348 myristyl alcohol Drugs 0.000 description 2
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 2
- 229940055577 oleyl alcohol Drugs 0.000 description 2
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 description 2
- 239000003549 soybean oil Substances 0.000 description 2
- 235000012424 soybean oil Nutrition 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 229940012831 stearyl alcohol Drugs 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010557 suspension polymerization reaction Methods 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- NVZWEEGUWXZOKI-UHFFFAOYSA-N 1-ethenyl-2-methylbenzene Chemical compound CC1=CC=CC=C1C=C NVZWEEGUWXZOKI-UHFFFAOYSA-N 0.000 description 1
- JZHGRUMIRATHIU-UHFFFAOYSA-N 1-ethenyl-3-methylbenzene Chemical compound CC1=CC=CC(C=C)=C1 JZHGRUMIRATHIU-UHFFFAOYSA-N 0.000 description 1
- UVHXEHGUEKARKZ-UHFFFAOYSA-N 1-ethenylanthracene Chemical compound C1=CC=C2C=C3C(C=C)=CC=CC3=CC2=C1 UVHXEHGUEKARKZ-UHFFFAOYSA-N 0.000 description 1
- IGGDKDTUCAWDAN-UHFFFAOYSA-N 1-vinylnaphthalene Chemical compound C1=CC=C2C(C=C)=CC=CC2=C1 IGGDKDTUCAWDAN-UHFFFAOYSA-N 0.000 description 1
- KEUUHXDTZRYITO-UHFFFAOYSA-L 2,2-dioctyl-1,3,2-oxathiastannolan-5-one Chemical compound CCCCCCCC[Sn]1(CCCCCCCC)OC(=O)CS1 KEUUHXDTZRYITO-UHFFFAOYSA-L 0.000 description 1
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 1
- SBYMUDUGTIKLCR-UHFFFAOYSA-N 2-chloroethenylbenzene Chemical compound ClC=CC1=CC=CC=C1 SBYMUDUGTIKLCR-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- DXIJHCSGLOHNES-UHFFFAOYSA-N 3,3-dimethylbut-1-enylbenzene Chemical compound CC(C)(C)C=CC1=CC=CC=C1 DXIJHCSGLOHNES-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- QUGNZNCOLVCQKW-UHFFFAOYSA-M S[Sn] Chemical compound S[Sn] QUGNZNCOLVCQKW-UHFFFAOYSA-M 0.000 description 1
- JSCLOXACKPBEEW-UHFFFAOYSA-M S[Sn](C)C.C[Sn]C Chemical compound S[Sn](C)C.C[Sn]C JSCLOXACKPBEEW-UHFFFAOYSA-M 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- AJDTZVRPEPFODZ-PAMPIZDHSA-J [Sn+4].[O-]C(=O)\C=C/C([O-])=O.[O-]C(=O)\C=C/C([O-])=O Chemical compound [Sn+4].[O-]C(=O)\C=C/C([O-])=O.[O-]C(=O)\C=C/C([O-])=O AJDTZVRPEPFODZ-PAMPIZDHSA-J 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- LYYNQLKRDKNQMN-UHFFFAOYSA-L [dodecanoyloxy(dimethyl)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](C)(C)OC(=O)CCCCCCCCCCC LYYNQLKRDKNQMN-UHFFFAOYSA-L 0.000 description 1
- XQBCVRSTVUHIGH-UHFFFAOYSA-L [dodecanoyloxy(dioctyl)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCCCCCC)(CCCCCCCC)OC(=O)CCCCCCCCCCC XQBCVRSTVUHIGH-UHFFFAOYSA-L 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- RXPKHKBYUIHIGL-UHFFFAOYSA-L calcium;12-hydroxyoctadecanoate Chemical compound [Ca+2].CCCCCCC(O)CCCCCCCCCCC([O-])=O.CCCCCCC(O)CCCCCCCCCCC([O-])=O RXPKHKBYUIHIGL-UHFFFAOYSA-L 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- BRWZYZWZBMGMMG-UHFFFAOYSA-J dodecanoate tin(4+) Chemical compound [Sn+4].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O BRWZYZWZBMGMMG-UHFFFAOYSA-J 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 150000002942 palmitic acid derivatives Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920005671 poly(vinyl chloride-propylene) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 235000003441 saturated fatty acids Nutrition 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000003017 thermal stabilizer Substances 0.000 description 1
- 150000005691 triesters Chemical class 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
- FRZSCIVUSFMNBX-UHFFFAOYSA-L zinc;12-hydroxyoctadecanoate Chemical compound [Zn+2].CCCCCCC(O)CCCCCCCCCCC([O-])=O.CCCCCCC(O)CCCCCCCCCCC([O-])=O FRZSCIVUSFMNBX-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- 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
- 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
-
- 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
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/04—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons
- D10B2321/041—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons polyvinyl chloride or polyvinylidene chloride
-
- 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
- the present invention relates to artificial hair fibers, artificial hair fiber bundles, hair decoration products, and the like.
- Vinyl chloride polymer fibers obtained by spinning vinyl chloride polymers have excellent flexibility, so they are often used as fibers for artificial hair that constitute hair decoration products.
- vinyl chloride polymer fibers are not suitable for styles that require volume in artificial hair applications because the vinyl chloride polymer has a high specific gravity.
- a means of blending an aromatic vinyl polymer having a smaller specific gravity than the vinyl chloride polymer has been proposed (see, for example, Patent Documents 1 and 2 below).
- the inventor of the present invention came up with the idea of improving the sense of volume by crimping the artificial hair fibers through gear processing.
- the sense of volume may not be sufficiently improved, and there is a problem that the style that can be produced is limited.
- One aspect of the present invention is to provide fibers for artificial hair that can be used to obtain artificial hair with excellent voluminousness (specific volume) by applying gear processing. Another aspect of the present invention provides a fiber bundle for artificial hair using the fiber for artificial hair. Another aspect of the present invention provides a hair decoration product using the artificial hair fiber bundle.
- the present invention relates to the following [1] to [9] and the like.
- the ratio of the monomer unit of the styrene compound is 74 to 88% by mass, and the ratio of the monomer unit of the (meth)acrylonitrile is 12 to 12% by mass.
- a fiber bundle for artificial hair comprising the fiber for artificial hair according to any one of [1] to [6].
- the fiber bundle for artificial hair according to [7] further comprising fibers different from the fibers for artificial hair.
- a hair decoration product comprising the artificial hair fiber bundle of [7] or [8].
- fibers for artificial hair that are capable of obtaining artificial hair with excellent voluminousness (specific volume) by applying gear processing.
- the upper limit or lower limit of the numerical range at one stage can be arbitrarily combined with the upper limit or lower limit of the numerical range at another stage.
- the upper or lower limits of the numerical ranges may be replaced with the values shown in the examples.
- the materials exemplified in this specification can be used singly or in combination of two or more unless otherwise specified.
- the content of each component in the composition means the total amount of the plurality of substances present in the composition unless otherwise specified when there are multiple substances corresponding to each component in the composition.
- “(Meth)acrylonitrile” means at least one of acrylonitrile and methacrylonitrile corresponding thereto. The same applies to other similar expressions such as "(meth)acrylic acid”.
- the artificial hair fiber according to this embodiment contains a vinyl chloride polymer and an aromatic vinyl polymer (excluding polymers corresponding to the vinyl chloride polymer).
- the heat shrinkage rate at 100° C. of the fiber for artificial hair according to this embodiment is 7% or more.
- the artificial hair fiber according to the present embodiment is a resin composition (fibrous resin composition) containing a vinyl chloride polymer and an aromatic vinyl polymer and having a heat shrinkage rate of 7% or more at 100°C. consists of
- the resin composition according to the present embodiment is a resin composition for artificial hair containing a vinyl chloride polymer and an aromatic vinyl polymer and having a heat shrinkage rate of 7% or more at 100°C.
- the fiber for artificial hair it is possible to obtain artificial hair having excellent voluminousness (specific volume) by applying gear processing.
- the artificial hair fiber is geared (processed in the length direction of the fiber, depth of gear waveform groove: 2.5 mm, gear pitch: 2.5 mm, surface temperature: 90 ° C., processing speed: 1.0 m/min), a specific volume exceeding 7.0 cc/g can be obtained. Due to the high heat shrinkage of the fiber containing the vinyl chloride polymer and the aromatic vinyl polymer, when the fiber is subjected to gear processing, the fiber tends to crimp due to the surface temperature of the gear, resulting in a sense of volume. is expected to improve. However, the factor for improving the sense of volume is not limited to this factor.
- Gear processing is a process of crimping by passing fibers (fiber bundles, etc.) between two meshing high-temperature gears.
- the material of the gear, the waveform of the gear, the fraction of the gear, etc. are not particularly limited.
- the wavy shape of the crimp may vary depending on the fiber material, fineness, pressure conditions between gears, etc., but in this embodiment, the wavy shape of the crimp is determined by the depth of the groove of the gear waveform, the surface temperature of the gear, the processing speed, etc. can be controlled.
- the groove depth of the gear waveform may be 0.2 to 6 mm or 0.5 to 5 mm
- the surface temperature of the gear is 50 to 110 ° C. or 60 to 100 ° C. and the processing speed may be 0.5-10 m/min or 1.0-8.0 m/min.
- the fiber for artificial hair With conventional artificial hair fibers, if the fibers are crimped, combability may deteriorate. On the other hand, according to one aspect of the fiber for artificial hair according to the present embodiment, it is possible to obtain excellent combability while obtaining an excellent voluminous feel.
- the drag force can be reduced to 300 gf or less (eg 250 gf or less).
- the fiber for artificial hair fibers it is required to suppress fiber breakage (thread breakage) during melt spinning, etc., and excellent spinnability may be required.
- the fiber for artificial hair according to the present embodiment it is possible to obtain excellent spinnability. can be reduced to the following.
- the heat shrinkage rate at 100°C of the fiber for artificial hair according to this embodiment is 7% or more from the viewpoint of obtaining an excellent voluminous feel.
- the heat shrinkage rate is 8% or more, 9% or more, 10% or more, 11% or more, 12% or more, 15% or more, 18% or more, 19% or more, 20% from the viewpoint of easily obtaining an excellent voluminous feel. 22% or more, 23% or more, 25% or more, or 28% or more.
- the heat shrinkage rate is 40% or less, 35% or less, 30% or less, 28% or less, 25% or less, 23% or less, 22% or less, 20% or less, 19%, from the viewpoint of easily obtaining excellent combability.
- the heat shrinkage rate is 7 to 40%, 7 to 30%, 8 to 30%, 8 to 28%, 10 to 28%, 12 to 28%, 15 to 28%, 20 to 28%, 22-28%, 7-25%, 8-25%, 8-22%, 8-20%, 8-15%, 10-25%, 15-25%, or 20-25% .
- the thermal shrinkage rate at 100°C of the fiber for artificial hair according to the present embodiment can be measured by the method described in Examples below.
- the heat shrinkage rate is determined by the heating temperature of heat treatment after spinning (for example, heat treatment after drawing treatment) when obtaining artificial hair fibers; the type or content of monomer units of the vinyl chloride polymer; It can be adjusted by the type or content of the monomer units of the polymer.
- the inventors of the present invention have found that the heat shrinkage rate tends to increase by reducing the heating temperature of the heat treatment, and the artificial hair fibers obtained at a heating temperature of 120 ° C.
- the fiber for artificial hair according to this embodiment can be used to obtain artificial hair.
- the fibers for artificial hair according to the present embodiment may be fibers after drawing treatment, or may be undrawn fibers.
- the single fineness of the fiber for artificial hair may be within the following range.
- the single fineness may be 10 decitex or more, 20 decitex or more, 30 decitex or more, 40 decitex or more, 50 decitex or more, or 60 decitex or more.
- the single fineness may be 100 decitex or less, 90 decitex or less, 80 decitex or less, 70 decitex or less, or 60 decitex or less. From these points of view, the single fineness may be 10-100 decitex, 30-90 decitex, or 50-70 decitex.
- the artificial hair fiber according to this embodiment contains a vinyl chloride polymer (eg, vinyl chloride resin).
- a vinyl chloride polymer is a polymer having vinyl chloride as a monomer unit (a polymer having structural units derived from vinyl chloride).
- the vinyl chloride polymer may be a vinyl chloride homopolymer or a vinyl chloride copolymer.
- Copolymers of vinyl chloride are polymers of vinyl chloride and other compounds (compounds other than vinyl chloride).
- Copolymers of vinyl chloride include copolymers of vinyl chloride and vinyl esters, such as vinyl chloride-vinyl acetate copolymers and vinyl chloride-vinyl propionate copolymers; vinyl chloride-butyl acrylate copolymers; Copolymers of vinyl chloride and acrylic acid esters, such as vinyl chloride-2-ethylhexyl acrylate copolymer; vinyl chloride-ethylene copolymers, vinyl chloride-propylene copolymers, etc. and olefins; and vinyl chloride-acrylonitrile copolymers.
- vinyl chloride-vinyl acetate copolymers and vinyl chloride-vinyl propionate copolymers vinyl chloride-butyl acrylate copolymers
- Copolymers of vinyl chloride and acrylic acid esters such as vinyl chloride-2-ethylhexyl acrylate copolymer
- vinyl chloride-ethylene copolymers vinyl chloride-propylene copo
- the vinyl chloride polymer is selected from vinyl chloride homopolymers, vinyl chloride-ethylene copolymers, and vinyl chloride-vinyl acetate copolymers from the viewpoint of easily obtaining excellent voluminousness, combability and spinnability. It may contain at least one selected from the group consisting of, and may contain a homopolymer of vinyl chloride.
- a vinyl chloride polymer can be produced by emulsion polymerization, bulk polymerization, suspension polymerization, or the like.
- the vinyl chloride polymer may be a polymer produced by suspension polymerization from the viewpoint of initial colorability of fibers.
- the content of the vinyl chloride polymer is more than 0% by mass and less than 100% by mass based on the total mass of the artificial hair fiber or the total amount of the vinyl chloride polymer and the aromatic vinyl polymer, and is described below. can be a range.
- the content of the vinyl chloride polymer is 98% by mass or less, 96% by mass or less, 95% by mass or less, less than 95% by mass, 90% by mass or less, 85% by mass or less, from the viewpoint of easily obtaining an excellent voluminous feel. It may be 83% by mass or less, 80% by mass or less, 75% by mass or less, 70% by mass or less, or 65% by mass or less.
- the content of the vinyl chloride polymer is 40% by mass or more, 45% by mass or more, 50% by mass or more, 55% by mass or more, 60% by mass or more, 65% by mass or more, from the viewpoint of easily obtaining excellent combability and spinnability.
- the content of the vinyl chloride polymer is 40 to 98% by mass, 50 to 96% by mass, 60 to 96% by mass, 65 to 96% by mass, 70 to 96% by mass, 60 to 95% by mass, It may be 65-90% by weight, 65-80% by weight, or 65-70% by weight.
- the artificial hair fiber according to this embodiment contains an aromatic vinyl polymer (for example, an aromatic vinyl resin).
- An aromatic vinyl polymer is a polymer having an aromatic vinyl compound as a monomer unit (a polymer having structural units derived from an aromatic vinyl compound).
- aromatic vinyl compounds include styrene compounds, vinyltoluene, vinylnaphthalene, vinylanthracene, and the like.
- the aromatic vinyl polymer may have a styrene-based compound as a monomer unit from the viewpoint of easily obtaining excellent voluminous feel, combability and spinnability.
- the styrenic compound may contain at least one selected from the group consisting of styrene and styrene derivatives.
- Styrene derivatives include ⁇ -methylstyrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, t-butylstyrene, chlorostyrene and the like.
- the styrene-based compound may contain styrene from the viewpoint of easily obtaining excellent voluminous feel, combability and spinnability.
- the aromatic vinyl polymer may be a homopolymer of an aromatic vinyl compound, or may be a copolymer of an aromatic vinyl compound (for example, an aromatic vinyl copolymer resin).
- the aromatic vinyl copolymer may be a copolymer having a plurality of types of aromatic vinyl compounds as monomer units, and the aromatic vinyl compound and a compound different from the aromatic vinyl compound are used as monomer units. It may be a copolymer having as
- Aromatic vinyl compounds include (meth)acrylonitrile, vinyl compounds (excluding compounds corresponding to styrene compounds), maleic anhydride, and the like.
- Vinyl compounds include (meth)acrylic acid; methyl (meth)acrylate, ethyl (meth)acrylate, n-butyl (meth)acrylate, and 2-ethylhexyl (meth)acrylate. and acid esters.
- the aromatic vinyl polymer may not have a (meth)acrylic acid ester as a monomer unit (at least one selected from the group consisting of acrylic acid esters and methacrylic acid esters may not be used as a monomer unit. good).
- As the aromatic vinyl polymer it is possible to use a polymer that does not have vinyl chloride as a monomer unit, and a polymer that does not have a halogen-containing compound as a monomer unit may be used.
- the aromatic vinyl polymer may have a styrene compound and (meth)acrylonitrile as monomer units (monomer and at least one selected from the group consisting of a monomer unit of acrylonitrile and a monomer unit of methacrylonitrile), styrene and (meth)acrylonitrile as monomer units well (which may have at least one selected from the group consisting of a styrene monomer unit, and an acrylonitrile monomer unit and a methacrylonitrile monomer unit), styrene and acrylonitrile as monomer units may have
- the proportion of styrene-based compound monomer units is based on the total aromatic vinyl polymer, or the total amount of styrene-based compound monomer units and (meth)acrylonitrile monomer units (of styrene-based compounds
- the total amount of monomer units, acrylonitrile monomer units and methacrylonitrile monomer units) may be in the following ranges.
- the ratio of the monomer unit of the styrene compound is 50% by mass or more, 50% by mass or more, 60% by mass or more, 60% by mass or more, 65% by mass or more, 68% by mass, from the viewpoint of easily obtaining an excellent voluminous feeling.
- the ratio of the monomer unit of the styrene compound is less than 100% by mass, 95% by mass or less, 90% by mass or less, 88% by mass or less, or 88% by mass from the viewpoint of easily obtaining excellent combability and spinnability.
- the ratio of the monomer units of the styrene compound is 50% by mass or more and less than 100% by mass, 60 to 95% by mass, 68 to 90% by mass, 68 to 86% by mass, 68 to 82% by mass, 68-75% by mass, 68-70% by mass, 70-90% by mass, 75-90% by mass, 82-90% by mass, 86-90% by mass, 70-86% by mass, 70-82% by mass, 70- 75% by mass, 75-86% by mass, 82-86% by mass, 75-82% by mass, 50-82% by mass, 60-82% by mass, 82-95% by mass, 74-88% by mass, 74% by mass or more It may be less than 88% by mass.
- the proportion of (meth)acrylonitrile monomeric units is based on the entire aromatic vinyl polymer, or a styrenic compound and the total amount of (meth)acrylonitrile monomer units (the total amount of styrene compound monomer units, acrylonitrile monomer units and methacrylonitrile monomer units) It may be in the following range.
- the ratio of the (meth)acrylonitrile monomer unit is more than 0% by mass, 5% by mass or more, 10% by mass or more, 12% by mass or more, and 12% by mass from the viewpoint of easily obtaining excellent combability and spinnability.
- the ratio of the (meth)acrylonitrile monomer unit is 50% by mass or less, 50% by mass or less, 40% by mass or less, 40% by mass or less, and 35% by mass or less from the viewpoint of suppressing the color of the artificial hair fiber.
- the proportion of (meth) acrylonitrile monomer units is more than 0% by mass and 50% by mass or less, 5 to 40% by mass, 10 to 32% by mass, 14 to 32% by mass, 18 to 32% by mass.
- the combination of the ratio of the monomer units of the styrene compound and the ratio of the (meth)acrylonitrile monomer units is arbitrary, and the ratio of the monomer units of the styrene compound and the ratio of the (meth)acrylonitrile monomer units Each of the percentages may be in each of the above ranges.
- the aromatic vinyl polymer is based on the whole aromatic vinyl polymer, or the total amount of the monomer units of the styrene compound and the monomer units of (meth)acrylonitrile (the monomer of the styrene compound unit, the total amount of acrylonitrile monomer units and methacrylonitrile monomer units), the ratio of the monomer units of the styrene compound is 50 to 95% by mass, and the (meth) acrylonitrile unit
- the ratio of the monomer unit may be 5 to 50% by mass, and the ratio of the monomer unit of the styrene compound is 68 to 90% by mass and the ratio of the monomer unit of (meth)acrylonitrile is 10 to 32% by mass, the ratio of the monomer units of the styrene compound is 74 to 88% by mass, and the ratio of the (meth)acrylonitrile monomer units is 12 to 26% by mass. It may be in one aspect.
- the total amount of styrene compound monomer units and (meth)acrylonitrile monomer units in the aromatic vinyl polymer is 50% by mass or more, 60% by mass or more, and 70% by mass based on the entire aromatic vinyl polymer, from the viewpoint of easily obtaining excellent voluminousness, combability and spinnability. 80% by mass or more, 90% by mass or more, 92% by mass or more, 95% by mass or more, 96% by mass or more, 98% by mass or more, 99% by mass or more, 99.5% by mass or more, or substantially 100% by mass % by mass.
- the content of the aromatic vinyl polymer is more than 0% by mass and less than 100% by mass based on the total mass of the artificial hair fiber or the total amount of the vinyl chloride polymer and the aromatic vinyl polymer, and is described below. may be in the range of The content of the aromatic vinyl polymer is 2% by mass or more, 4% by mass or more, 5% by mass or more, 5% by mass or more, 10% by mass or more, 15% by mass or more, from the viewpoint of easily obtaining an excellent voluminous feel. , 17 mass % or more, 20 mass % or more, 25 mass % or more, 30 mass % or more, or 35 mass % or more.
- the content of the aromatic vinyl polymer is 60% by mass or less, 55% by mass or less, 50% by mass or less, 45% by mass or less, 40% by mass or less, from the viewpoint of easily obtaining excellent combability and spinnability. 35% by mass or less, 30% by mass or less, 25% by mass or less, 20% by mass or less, 17% by mass or less, 15% by mass or less, 10% by mass or less, 5% by mass or less, less than 5% by mass, or 4% by mass may be: From these viewpoints, the content of the aromatic vinyl polymer is 2 to 60% by mass, 4 to 50% by mass, 4 to 40% by mass, 4 to 35% by mass, 4 to 30% by mass, and 5 to 40% by mass. , 10 to 35% by weight, 20 to 35% by weight, or 30 to 35% by weight.
- the artificial hair fiber according to the present embodiment has a vinyl chloride polymer content of 40 to 40, based on the total weight of the artificial hair fiber or the total amount of the vinyl chloride polymer and the aromatic vinyl polymer.
- the content of the vinyl chloride polymer is 60 to 95% by mass and the content of the aromatic vinyl polymer is The content may be 5 to 40% by mass, and the content of the vinyl chloride polymer is 68 to 90% by mass and the content of the aromatic vinyl polymer is 10 to 32% by mass. It's okay.
- the total amount of the vinyl chloride polymer and the aromatic vinyl polymer is 50% by mass or more, 60% by mass or more, 70% by mass or more, 80% by mass or more, and 90% by mass or more, based on the total mass of the artificial hair fiber. , 92% by weight or more, 95% by weight or more, 96% by weight or more, 98% by weight or more, 99% by weight or more, 99.5% by weight or more, or substantially 100% by weight.
- the artificial hair fiber according to this embodiment may contain components other than the vinyl chloride polymer and the aromatic vinyl polymer.
- components include polymers other than vinyl chloride polymers and aromatic vinyl polymers (polyolefins such as polypropylene; polyethylene terephthalate; (meth)acrylic acid, (meth)acrylic acid compounds such as (meth)acrylic acid esters, etc.); polymer, etc.), antistatic agents, heat stabilizers, lubricants, processing aids, plasticizers, reinforcing agents, UV absorbers, antioxidants, fillers, flame retardants, pigments, initial coloration improvers, conductivity imparting agents, fragrances, etc.
- polymers other than vinyl chloride polymers and aromatic vinyl polymers polyolefins such as polypropylene; polyethylene terephthalate; (meth)acrylic acid, (meth)acrylic acid compounds such as (meth)acrylic acid esters, etc.); polymer, etc.
- antistatic agents heat stabilizers, lubricants
- the artificial hair fiber according to the present embodiment may not contain at least one of such components, and polyolefin (polypropylene, etc.), polyethylene terephthalate, and (meth)acrylic acid compounds ((meth)acrylic acid, (meth) at least one selected from the group consisting of polymers such as acrylic acid esters, etc.).
- polyolefin polypropylene, etc.
- polyethylene terephthalate polyethylene terephthalate
- (meth)acrylic acid compounds ((meth)acrylic acid, (meth) at least one selected from the group consisting of polymers such as acrylic acid esters, etc.).
- antistatic agents examples include cationic, anionic, and amphoteric antistatic agents.
- the content (blending amount) of the antistatic agent is 0.01 per 100 parts by mass of the total of the vinyl chloride polymer and the aromatic vinyl polymer, or 100 parts by mass of the artificial hair fiber (fibrous resin composition). It may be up to 1 part by mass.
- Thermal stabilizers can be used to adjust thermal decomposition during molding, long-run properties, filament color tone, etc.
- heat stabilizers include Ca—Zn-based heat stabilizers, hydrotalcite-based heat stabilizers, tin-based heat stabilizers, epoxy-based heat stabilizers, ⁇ -diketone-based heat stabilizers, and the like.
- the content (blended amount) of the heat stabilizer is 0.1 per 100 parts by mass of the vinyl chloride polymer and the aromatic vinyl polymer in total, or 100 parts by mass of the artificial hair fiber (fibrous resin composition). It may be up to 5.0 parts by mass.
- Ca-Zn-based heat stabilizers include zinc stearate, calcium stearate, zinc 12-hydroxystearate, calcium 12-hydroxystearate, and the like.
- hydrotalcite-based heat stabilizers include hydrotalcite compounds.
- hydrotalcite compounds include complex salt compounds composed of magnesium and/or alkali metals and aluminum; complex salt compounds composed of zinc, magnesium and aluminum; and compounds obtained by dehydrating water of crystallization.
- the tin heat stabilizers include mercaptotin heat stabilizers such as dimethyltin mercapto, dimethyltin mercaptide, dibutyltin mercapto, dioctyltin mercapto, dioctyltin mercapto polymer, and dioctyltin mercaptoacetate; maleate tin heat stabilizers such as ate, dioctyltin maleate, dioctyltin maleate polymer; and laurate tin heat stabilizers such as dimethyltin laurate, dibutyltin laurate and dioctyltin laurate.
- mercaptotin heat stabilizers such as dimethyltin mercapto, dimethyltin mercaptide, dibutyltin mercapto, dioctyltin mercapto, dioctyltin mercapto polymer, and diocty
- Epoxy heat stabilizers include epoxidized soybean oil and epoxidized linseed oil.
- ⁇ -diketone heat stabilizers include stearoylbenzoylmethane (SBM), dibenzoylmethane (DBM) and the like.
- Lubricants can be used to reduce friction with the metal surface of processing machines and friction between resins, improve fluidity, and adjust workability.
- Lubricants include metal soap-based lubricants, higher fatty acid-based lubricants, ester-based lubricants, higher alcohol-based lubricants, hydrocarbon-based lubricants, and the like.
- the content (blended amount) of the lubricant is 0.2 to 5 parts per 100 parts by mass of the vinyl chloride polymer and the aromatic vinyl polymer in total, or 100 parts by mass of the artificial hair fiber (fibrous resin composition). 0 parts by mass.
- metallic soap-based lubricants examples include metallic soaps (eg stearates, laurates, palmitates, oleates such as Na, Mg, Al, Ca, and Ba).
- Higher fatty acid lubricants include saturated fatty acids such as stearic acid, palmitic acid, myristic acid, lauric acid and capric acid; unsaturated fatty acids such as oleic acid; and mixtures thereof.
- ester-based lubricants include pentaerythritol-based lubricants, montanic acid wax-based lubricants, lubricants composed of alcohol and fatty acid, and the like.
- Examples of pentaerythritol-based lubricants include monoesters, diesters, triesters, and tetraesters of pentaerythritol or dipentaerythritol and higher fatty acids; and mixtures thereof.
- Examples of montanic acid wax-based lubricants include esters of montanic acid and higher alcohols (stearyl alcohol, palmityl alcohol, myristyl alcohol, lauryl alcohol, oleyl alcohol, etc.).
- Higher alcohol-based lubricants include stearyl alcohol, palmityl alcohol, myristyl alcohol, lauryl alcohol, and oleyl alcohol.
- Hydrocarbon-based lubricants include polyethylene wax, polypropylene wax, and the like.
- the content of the vinyl chloride-based acrylic graft copolymer in the artificial hair fiber according to the present embodiment is 1 mass with respect to a total of 100 mass parts of the vinyl chloride polymer and the vinyl polymer (for example, the aromatic vinyl polymer). parts or less, less than 1 part by weight, 0.1 parts by weight or less, 0.01 parts by weight or less, or substantially 0 parts by weight.
- the method for producing fibers for artificial hair includes a heating step of obtaining fibers for artificial hair by heat-treating base fibers containing a vinyl chloride polymer and an aromatic vinyl polymer.
- the base fibers may be fibers obtained in the drawing step described below.
- the heating step for example, the base fiber may be heat-treated in an air atmosphere using a heat treatment machine until the total length of the fiber is shrunk 0.5 to 0.9 times that before the treatment.
- the glass transition temperature (Tg) of the base fiber may be within the following range.
- the glass transition temperature is 80° C. or higher, 85° C. or higher, 90° C. or higher, 94° C. or higher, 95° C. or higher, 100° C. or higher, 104° C. or higher, 105° C. or higher, 108° C. or higher, from the viewpoint of easily obtaining excellent combability.
- the glass transition temperature is 150° C. or less, 140° C. or less, 130° C. or less, 125° C.
- the glass transition temperature may be 95°C or lower, or 94°C or lower. From these points of view, the glass transition temperature may be 80-150°C, 94-124°C, or 100-115°C. The glass transition temperature can be measured by the method described in Examples below.
- the heating temperature in the heating step may be less than 120°C, 115°C or less, 110°C or less, or 105°C or less.
- the heating temperature in the heating step may be 80° C. or higher, 90° C. or higher, 100° C. or higher, 105° C. or higher, or 110° C. or higher. From these points of view, the heating temperature in the heating step may be 80 to 120°C, 90 to 115°C, or 100 to 110°C.
- fibers for artificial hair having a large thermal shrinkage at 100°C can be easily obtained at a heating temperature of less than 120°C (for example, 110°C or lower).
- a heating temperature for example, 120°C (for example, 110°C or lower).
- the base fiber has a low glass transition temperature (for example, the glass transition temperature is less than 120°C) and the temperature difference between the glass transition temperature and the heat shrinkage temperature of 100°C is small, the heating temperature is 120°C. If it is less than that, it is easy to obtain fibers for artificial hair with a large heat shrinkage.
- the glass transition temperature of the base material fiber is high (for example, the glass transition temperature is 120°C or higher), even if the temperature difference between the glass transition temperature and the temperature of the thermal shrinkage rate of 100°C is large, heating When the temperature is less than 120°C, it is easy to obtain fibers for artificial hair with a large heat shrinkage.
- the method for producing fibers for artificial hair may include a melt-kneading step of melt-kneading the vinyl chloride polymer and the aromatic vinyl polymer.
- the melt-kneading step for example, the vinyl chloride polymer and the aromatic vinyl polymer are stirred and mixed to obtain a powder compound, and then the powder compound is melt-kneaded to obtain a pellet compound.
- an antistatic agent, a heat stabilizer, a lubricant, and the like may be appropriately mixed.
- a Henschel mixer, super mixer, ribbon blender, or the like can be used for stirring and mixing to obtain a powder compound.
- 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, a roll kneader, etc. can be used.
- a resin composition containing a vinyl chloride polymer and an aromatic vinyl polymer (a pellet compound obtained in the melt-kneading step) is melt-spun.
- It may comprise a melt spinning process to In the melt spinning step, for example, a metal nozzle having a plurality of nozzle holes is used to extrude the resin composition under the conditions of a cylinder temperature of 140 to 190° C. and a nozzle temperature of 180 ⁇ 15° C. to perform melt spinning.
- a single-screw extruder, a counter-rotating twin-screw extruder, a conical twin-screw extruder, or the like may be used. good.
- the method for producing fibers for artificial hair may include a winding step for winding the fibers obtained in the melt spinning step after the melt spinning step.
- the fiber obtained in the melt spinning process may be introduced into a heating cylinder (heating cylinder temperature: about 250° C.), instantaneously heat-treated, and then wound up by a take-up machine.
- the take-up speed may be adjusted so that the single fineness of the fiber is 150-206 decitex.
- the fibers are drawn after the winding step to obtain base fibers (base fibers heat-treated in the heating step).
- a process may be provided.
- the undrawn fibers may be drawn 2 to 4 times with a drawing machine (at 90 to 120° C. in an air atmosphere).
- the fiber bundle for artificial hair according to this embodiment includes the fiber for artificial hair according to this embodiment.
- the fiber bundle for artificial hair according to the present embodiment may be provided with a plurality of fibers for artificial hair according to the present embodiment.
- One aspect of the fiber bundle for artificial hair according to this embodiment may be a fiber bundle made of the fiber for artificial hair according to this embodiment.
- Another aspect of the fiber bundle for artificial hair according to the present embodiment includes, in addition to the fibers for artificial hair according to the present embodiment, fibers different from the fibers for artificial hair (fibers for artificial hair; fibers for artificial hair according to the present embodiment). Fibers that do not correspond to fibers for artificial hair) may be further provided, that is, fibers for artificial hair according to the present embodiment and fibers different from the fibers for artificial hair may be provided.
- the constituent material of the fiber which is different from the artificial hair fiber according to the present embodiment, contains one of a vinyl chloride polymer and an aromatic vinyl polymer-free fiber, and a vinyl chloride polymer and an aromatic vinyl polymer. It may be a fiber or a fiber having a heat shrinkage of less than 7% at 100°C.
- constituent materials of fibers different from the artificial hair fibers according to the present embodiment include polyolefins such as polypropylene; polyethylene terephthalate; polymers of (meth)acrylic acid compounds such as (meth)acrylic acid and (meth)acrylic acid esters. etc.
- the artificial hair fibers and the artificial hair fiber bundles according to this embodiment can be used in the hair decoration products according to this embodiment.
- the hair decoration product according to the present embodiment includes the artificial hair fibers according to the present embodiment, and may include the artificial hair fiber bundle according to the present embodiment. Examples of hair decoration products include wigs and the like.
- the artificial hair fibers and the artificial hair fiber bundles in the hair decoration product according to the present embodiment may be in any state before or after gear processing for crimping the artificial hair fibers.
- the artificial hair according to this embodiment can be obtained by subjecting the fiber for artificial hair according to this embodiment to gear processing.
- Vinyl chloride polymer (vinyl chloride resin, homopolymer of vinyl chloride, manufactured by Taiyo Vinyl Co., Ltd., product name: TH-1000) 70 parts by mass, styrene monomer unit 68 mass% and acrylonitrile monomer unit 32 mass % containing aromatic vinyl polymer (aromatic vinyl copolymer resin, manufactured by Denka Co., Ltd., product name: GR-AT-6S) 30 parts by mass, antistatic agent (manufactured by NOF Corporation, product name: New Elegan ASK) 0.5 parts by mass, hydrotalcite-based complex salt compound (manufactured by Nissan Chemical Industries, Ltd., product name: CP-410A) 3 parts by mass, epoxidized soybean oil (manufactured by Asahi Denka Kogyo Co., Ltd., product name: O-130P) and 0.8 parts by mass of an ester-based lubricant (manufactufact
- pellets were produced by compounding with an extruder having a diameter (aperture) of 40 mm at a cylinder temperature of 130 to 170°C.
- an extruder having a diameter (aperture) of 40 mm at a cylinder temperature of 130 to 170°C.
- a cylinder temperature of 140 to 190 ° C. and a nozzle temperature of 180 ° C.
- an extrusion rate 10 kg / hour and a diameter of 30 mm.
- the pellets described above were melt spun. After that, heat treatment was performed for 1.0 second in a heating cylinder (250° C.) placed 4.5 m directly below the nozzle to obtain 150 decitex fiber A (unstretched fiber).
- the peak top temperature of the loss tangent (tan ⁇ ) in the dynamic viscoelasticity measurement was measured.
- a dynamic viscoelasticity measuring device DMS6100 manufactured by SII Nanotechnology Co., Ltd.
- 40 fibers of fiber A were measured at a temperature increase rate of 4 ° C./min, a frequency of 1 Hz, and a distance between chucks of 3 mm.
- the loss tangent (tan ⁇ ) in the range of 25-170° C. of the bundle was measured and the peak top temperature was measured.
- the glass transition temperature of Fiber A of Example 1 was 124°C.
- fiber B was obtained by drawing fiber A three times in an air atmosphere at 100°C.
- fiber B was heat-treated in an air atmosphere at a heating temperature (annealing temperature) of 110°C until the total length of the fiber was shrunk to 0.75 times that before treatment, thereby obtaining a 60 decitex artificial hair fiber.
- annealing temperature a heating temperature of 110°C until the total length of the fiber was shrunk to 0.75 times that before treatment, thereby obtaining a 60 decitex artificial hair fiber.
- Example 1 The content of the vinyl chloride polymer, the content of the aromatic vinyl polymer, the ratio of the monomer units in the aromatic vinyl polymer, and the heating temperature (annealing temperature) of the heat treatment after the stretching treatment are shown in Table 1 and Table 1.
- An artificial hair fiber of 60 decitex was obtained in the same manner as in Example 1 except that the value was changed to 2.
- the aromatic vinyl polymer different from that of Example 1 the following aromatic vinyl polymer was used.
- Tables 1 and 2 show the measurement results of the glass transition temperature of Fiber A.
- Aromatic vinyl polymer containing 70% by mass of styrene monomer units and 30% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: GR-AT-R) Aromatic vinyl polymer containing 75% by mass of styrene monomer units and 25% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: AS700) Aromatic vinyl polymer containing 80% by mass of styrene monomer units and 20% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: AS-3) Aromatic vinyl polymer containing 82% by mass of styrene monomer units and 18% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: AS-C800) Aromatic vinyl polymer containing 86% by mass of styrene monomer units and 14% by mass of
- Thermal shrinkage rate (%) ⁇ [(length before heating) - (length after heating)] / (length before heating) ⁇ x 100
- spinnability As the spinnability, the state of occurrence of yarn breakage per hour during the production of the fiber A (undrawn fiber) by melt spinning in the production of the artificial hair fiber was visually observed. Spinnability was evaluated according to the following criteria. A: Thread breakage once B: Thread breakage 2-3 times C: Thread breakage 4 times or more
- the voluminousness was evaluated by the following procedure. First, a fiber bundle of the above artificial hair fibers (number: 12,000, length: 10 m, mass: 800 g) was subjected to gear processing (processing in the length direction of the fibers, groove depth of the gear waveform: 2.5 mm). , gear pitch: 2.5 mm, surface temperature: 90 ° C., processing speed: 1.0 m / min) to obtain a fiber for evaluation, and then cut this evaluation fiber to a length of 100 mm to obtain a fiber piece. rice field. The 56 cc container (100 mm x 14 mm x 40 mm) was then filled with fiber pieces until it was full.
- combability The combability was evaluated by the following procedure. First, a fiber bundle of the above artificial hair fibers (number: 12,000, length: 10 m, mass: 800 g) was subjected to gear processing (processing in the length direction of the fibers, groove depth of the gear waveform: 2.5 mm). , gear pitch: 2.5 mm, surface temperature: 90°C, processing speed: 1.0 m/min) to obtain a fiber bundle of fibers for evaluation.
- the resistance force [unit: gf] when combed at a moving speed of 10 mm / sec and a moving distance of 100 mm was measured with a static and dynamic friction measuring device (manufactured by TRINITY-LAB) , trade name “TL201Tt”). It was judged that the smaller the resistance, the better the combability.
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Abstract
The present invention pertains to fibers, for artificial hair, containing a vinyl chloride polymer and an aromatic vinyl polymer, and having a heat shrinkage rate at 100°C of at least 7%. The present invention also pertains to a fiber bundle, for artificial hair, comprising the fibers for artificial hair. The present invention further pertains to a hair decoration product comprising the fiber bundle for artificial hair.
Description
本発明は、人工毛髪用繊維、人工毛髪用繊維束、頭髪装飾製品等に関する。
The present invention relates to artificial hair fibers, artificial hair fiber bundles, hair decoration products, and the like.
塩化ビニル重合体を紡糸して得られた塩化ビニル重合体繊維は、柔軟性に優れているため、頭髪装飾製品を構成する人工毛髪用繊維として多く使用されている。しかしながら、塩化ビニル重合体繊維は、塩化ビニル重合体の比重が大きいため、人工毛髪用途においてボリュームが必要とされるスタイルには不向きであった。塩化ビニル重合体繊維の比重を小さくするために、塩化ビニル重合体よりも比重の小さい芳香族ビニル重合体を配合する手段が提案されている（例えば、下記特許文献１及び２参照）。
Vinyl chloride polymer fibers obtained by spinning vinyl chloride polymers have excellent flexibility, so they are often used as fibers for artificial hair that constitute hair decoration products. However, vinyl chloride polymer fibers are not suitable for styles that require volume in artificial hair applications because the vinyl chloride polymer has a high specific gravity. In order to reduce the specific gravity of vinyl chloride polymer fibers, a means of blending an aromatic vinyl polymer having a smaller specific gravity than the vinyl chloride polymer has been proposed (see, for example, Patent Documents 1 and 2 below).
本発明者は、人工毛髪用繊維を用いて頭髪装飾製品を得るに際して、ギア加工処理を施して人工毛髪用繊維を縮れさせることにより、ボリューム感を向上させることに着想した。しかしながら、芳香族ビニル重合体を含有する人工毛髪用繊維を用いる場合、ボリューム感が充分に向上しないことがあり、作製可能なスタイルが制限されてしまうという課題がある。
When obtaining a hair decoration product using artificial hair fibers, the inventor of the present invention came up with the idea of improving the sense of volume by crimping the artificial hair fibers through gear processing. However, when artificial hair fibers containing an aromatic vinyl polymer are used, the sense of volume may not be sufficiently improved, and there is a problem that the style that can be produced is limited.
本発明の一側面は、ギア加工処理を施すことにより、ボリューム感（比容積）に優れた人工毛髪を得ることが可能な人工毛髪用繊維を提供する。本発明の他の一側面は、当該人工毛髪用繊維を用いた人工毛髪用繊維束を提供する。本発明の他の一側面は、当該人工毛髪用繊維束を用いた頭髪装飾製品を提供する。
One aspect of the present invention is to provide fibers for artificial hair that can be used to obtain artificial hair with excellent voluminousness (specific volume) by applying gear processing. Another aspect of the present invention provides a fiber bundle for artificial hair using the fiber for artificial hair. Another aspect of the present invention provides a hair decoration product using the artificial hair fiber bundle.
本発明は、いくつかの側面において、下記の［１］～［９］等に関する。
［１］塩化ビニル重合体と、芳香族ビニル重合体と、を含有し、１００℃における熱収縮率が７％以上である、人工毛髪用繊維。
［２］前記熱収縮率が７～２５％である、［１］に記載の人工毛髪用繊維。
［３］前記塩化ビニル重合体の含有量が６０～９５質量％であり、前記芳香族ビニル重合体の含有量が５～４０質量％である、［１］又は［２］に記載の人工毛髪用繊維。
［４］前記芳香族ビニル重合体が、スチレン系化合物及び（メタ）アクリロニトリルを単量体単位として有する、［１］～［３］のいずれか一つに記載の人工毛髪用繊維。
［５］前記スチレン系化合物がスチレンを含む、［４］に記載の人工毛髪用繊維。
［６］前記芳香族ビニル重合体の全体を基準として、前記スチレン系化合物の単量体単位の割合が７４～８８質量％であり、前記（メタ）アクリロニトリルの単量体単位の割合が１２～２６質量％である、［４］又は［５］に記載の人工毛髪用繊維。
［７］［１］～［６］のいずれか一つに記載の人工毛髪用繊維を備える、人工毛髪用繊維束。
［８］前記人工毛髪用繊維とは異なる繊維を更に備える、［７］に記載の人工毛髪用繊維束。
［９］［７］又は［８］に記載の人工毛髪用繊維束を備える、頭髪装飾製品。 In some aspects, the present invention relates to the following [1] to [9] and the like.
[1] An artificial hair fiber containing a vinyl chloride polymer and an aromatic vinyl polymer and having a heat shrinkage rate of 7% or more at 100°C.
[2] The fiber for artificial hair according to [1], wherein the heat shrinkage is 7 to 25%.
[3] The artificial hair according to [1] or [2], wherein the content of the vinyl chloride polymer is 60 to 95% by mass and the content of the aromatic vinyl polymer is 5 to 40% by mass. for fiber.
[4] The artificial hair fiber according to any one of [1] to [3], wherein the aromatic vinyl polymer has a styrene compound and (meth)acrylonitrile as monomer units.
[5] The artificial hair fiber according to [4], wherein the styrenic compound contains styrene.
[6] Based on the entire aromatic vinyl polymer, the ratio of the monomer unit of the styrene compound is 74 to 88% by mass, and the ratio of the monomer unit of the (meth)acrylonitrile is 12 to 12% by mass. The artificial hair fiber according to [4] or [5], which is 26% by mass.
[7] A fiber bundle for artificial hair comprising the fiber for artificial hair according to any one of [1] to [6].
[8] The fiber bundle for artificial hair according to [7], further comprising fibers different from the fibers for artificial hair.
[9] A hair decoration product comprising the artificial hair fiber bundle of [7] or [8].
［１］塩化ビニル重合体と、芳香族ビニル重合体と、を含有し、１００℃における熱収縮率が７％以上である、人工毛髪用繊維。
［２］前記熱収縮率が７～２５％である、［１］に記載の人工毛髪用繊維。
［３］前記塩化ビニル重合体の含有量が６０～９５質量％であり、前記芳香族ビニル重合体の含有量が５～４０質量％である、［１］又は［２］に記載の人工毛髪用繊維。
［４］前記芳香族ビニル重合体が、スチレン系化合物及び（メタ）アクリロニトリルを単量体単位として有する、［１］～［３］のいずれか一つに記載の人工毛髪用繊維。
［５］前記スチレン系化合物がスチレンを含む、［４］に記載の人工毛髪用繊維。
［６］前記芳香族ビニル重合体の全体を基準として、前記スチレン系化合物の単量体単位の割合が７４～８８質量％であり、前記（メタ）アクリロニトリルの単量体単位の割合が１２～２６質量％である、［４］又は［５］に記載の人工毛髪用繊維。
［７］［１］～［６］のいずれか一つに記載の人工毛髪用繊維を備える、人工毛髪用繊維束。
［８］前記人工毛髪用繊維とは異なる繊維を更に備える、［７］に記載の人工毛髪用繊維束。
［９］［７］又は［８］に記載の人工毛髪用繊維束を備える、頭髪装飾製品。 In some aspects, the present invention relates to the following [1] to [9] and the like.
[1] An artificial hair fiber containing a vinyl chloride polymer and an aromatic vinyl polymer and having a heat shrinkage rate of 7% or more at 100°C.
[2] The fiber for artificial hair according to [1], wherein the heat shrinkage is 7 to 25%.
[3] The artificial hair according to [1] or [2], wherein the content of the vinyl chloride polymer is 60 to 95% by mass and the content of the aromatic vinyl polymer is 5 to 40% by mass. for fiber.
[4] The artificial hair fiber according to any one of [1] to [3], wherein the aromatic vinyl polymer has a styrene compound and (meth)acrylonitrile as monomer units.
[5] The artificial hair fiber according to [4], wherein the styrenic compound contains styrene.
[6] Based on the entire aromatic vinyl polymer, the ratio of the monomer unit of the styrene compound is 74 to 88% by mass, and the ratio of the monomer unit of the (meth)acrylonitrile is 12 to 12% by mass. The artificial hair fiber according to [4] or [5], which is 26% by mass.
[7] A fiber bundle for artificial hair comprising the fiber for artificial hair according to any one of [1] to [6].
[8] The fiber bundle for artificial hair according to [7], further comprising fibers different from the fibers for artificial hair.
[9] A hair decoration product comprising the artificial hair fiber bundle of [7] or [8].
本発明の一側面によれば、ギア加工処理を施すことにより、ボリューム感（比容積）に優れた人工毛髪を得ることが可能な人工毛髪用繊維を提供することができる。本発明の他の一側面によれば、当該人工毛髪用繊維を用いた人工毛髪用繊維束を提供することができる。本発明の他の一側面によれば、当該人工毛髪用繊維束を用いた頭髪装飾製品を提供することができる。本発明の他の一側面によれば、繊維の人工毛髪又はその製造への応用を提供することができる。本発明の他の一側面によれば、繊維の頭髪装飾製品又はその製造への応用を提供することができる。
According to one aspect of the present invention, it is possible to provide fibers for artificial hair that are capable of obtaining artificial hair with excellent voluminousness (specific volume) by applying gear processing. According to another aspect of the present invention, it is possible to provide a fiber bundle for artificial hair using the fiber for artificial hair. According to another aspect of the present invention, it is possible to provide a hair decoration product using the artificial hair fiber bundle. According to another aspect of the present invention, it is possible to provide an application of fibers to artificial hair or its production. According to another aspect of the present invention, it is possible to provide an application of fibers to hair ornaments or their manufacture.
以下、本発明を実施するための形態について詳細に説明する。なお、本発明は、以下に説明する実施形態に限定されるものではない。
Hereinafter, the embodiments for carrying out the present invention will be described in detail. In addition, this invention is not limited to embodiment described below.
本明細書に段階的に記載されている数値範囲において、ある段階の数値範囲の上限値又は下限値は、他の段階の数値範囲の上限値又は下限値と任意に組み合わせることができる。本明細書に記載されている数値範囲において、その数値範囲の上限値又は下限値は、実施例に示されている値に置き換えてもよい。本明細書に例示する材料は、特に断らない限り、１種を単独で又は２種以上を組み合わせて用いることができる。組成物中の各成分の含有量は、組成物中に各成分に該当する物質が複数存在する場合、特に断らない限り、組成物中に存在する当該複数の物質の合計量を意味する。「（メタ）アクリロニトリル」とは、アクリロニトリル、及び、それに対応するメタクリロニトリルの少なくとも一方を意味する。「（メタ）アクリル酸」等の他の類似の表現においても同様である。
In the numerical ranges described stepwise in this specification, the upper limit or lower limit of the numerical range at one stage can be arbitrarily combined with the upper limit or lower limit of the numerical range at another stage. In the numerical ranges described herein, the upper or lower limits of the numerical ranges may be replaced with the values shown in the examples. The materials exemplified in this specification can be used singly or in combination of two or more unless otherwise specified. The content of each component in the composition means the total amount of the plurality of substances present in the composition unless otherwise specified when there are multiple substances corresponding to each component in the composition. "(Meth)acrylonitrile" means at least one of acrylonitrile and methacrylonitrile corresponding thereto. The same applies to other similar expressions such as "(meth)acrylic acid".
本実施形態に係る人工毛髪用繊維は、塩化ビニル重合体と、芳香族ビニル重合体（塩化ビニル重合体に該当する重合体を除く）と、を含有する。本実施形態に係る人工毛髪用繊維の１００℃における熱収縮率は、７％以上である。本実施形態に係る人工毛髪用繊維は、塩化ビニル重合体と、芳香族ビニル重合体と、を含有し、１００℃における熱収縮率が７％以上である樹脂組成物（繊維状樹脂組成物）で構成されている。本実施形態に係る樹脂組成物は、塩化ビニル重合体と、芳香族ビニル重合体と、を含有し、１００℃における熱収縮率が７％以上である人工毛髪用樹脂組成物である。
The artificial hair fiber according to this embodiment contains a vinyl chloride polymer and an aromatic vinyl polymer (excluding polymers corresponding to the vinyl chloride polymer). The heat shrinkage rate at 100° C. of the fiber for artificial hair according to this embodiment is 7% or more. The artificial hair fiber according to the present embodiment is a resin composition (fibrous resin composition) containing a vinyl chloride polymer and an aromatic vinyl polymer and having a heat shrinkage rate of 7% or more at 100°C. consists of The resin composition according to the present embodiment is a resin composition for artificial hair containing a vinyl chloride polymer and an aromatic vinyl polymer and having a heat shrinkage rate of 7% or more at 100°C.
本実施形態に係る人工毛髪用繊維によれば、ギア加工処理を施すことにより、ボリューム感（比容積）に優れた人工毛髪を得ることが可能であり、例えば、後述の実施例に記載の評価方法において、当該人工毛髪用繊維に対してギア加工処理（繊維の長さ方向の処理、ギア波形の溝の深さ：２．５ｍｍ、ギアピッチ：２．５ｍｍ、表面温度：９０℃、加工速度：１．０ｍ／ｍｉｎ）を施すことにより、７．０ｃｃ／ｇを超える比容積を得ることができる。塩化ビニル重合体と芳香族ビニル重合体とを含有する繊維の熱収縮率が高いことにより、繊維にギア加工処理を施した際にギアの表面温度によって繊維の縮れが生じやすいことから、ボリューム感が向上すると推測される。但し、ボリューム感が向上する要因は当該要因に限定されない。
According to the fiber for artificial hair according to the present embodiment, it is possible to obtain artificial hair having excellent voluminousness (specific volume) by applying gear processing. In the method, the artificial hair fiber is geared (processed in the length direction of the fiber, depth of gear waveform groove: 2.5 mm, gear pitch: 2.5 mm, surface temperature: 90 ° C., processing speed: 1.0 m/min), a specific volume exceeding 7.0 cc/g can be obtained. Due to the high heat shrinkage of the fiber containing the vinyl chloride polymer and the aromatic vinyl polymer, when the fiber is subjected to gear processing, the fiber tends to crimp due to the surface temperature of the gear, resulting in a sense of volume. is expected to improve. However, the factor for improving the sense of volume is not limited to this factor.
ギア加工処理は、２つの噛み合う高温のギアの間に繊維（繊維束等）を通すことによって捲縮を施す処理である。本実施形態に係る人工毛髪用繊維に対するギア加工処理において、ギアの材質、ギア波形、ギアの端数等は特に限定されない。繊維の材質、繊度、ギア間の圧力条件等によってクリンプの波形状は変化し得るが、本実施形態においては、ギア波形の溝の深さ、ギアの表面温度、加工速度等によってクリンプの波形状をコントロールできる。これらの加工条件に特に制限はないが、ギア波形の溝の深さは０．２～６ｍｍ又は０．５～５ｍｍであってよく、ギアの表面温度は５０～１１０℃又は６０～１００℃であってよく、加工速度は０．５～１０ｍ／ｍｉｎ又は１．０～８．０ｍ／ｍｉｎであってよい。
Gear processing is a process of crimping by passing fibers (fiber bundles, etc.) between two meshing high-temperature gears. In the gear processing for artificial hair fibers according to the present embodiment, the material of the gear, the waveform of the gear, the fraction of the gear, etc. are not particularly limited. The wavy shape of the crimp may vary depending on the fiber material, fineness, pressure conditions between gears, etc., but in this embodiment, the wavy shape of the crimp is determined by the depth of the groove of the gear waveform, the surface temperature of the gear, the processing speed, etc. can be controlled. These processing conditions are not particularly limited, but the groove depth of the gear waveform may be 0.2 to 6 mm or 0.5 to 5 mm, and the surface temperature of the gear is 50 to 110 ° C. or 60 to 100 ° C. and the processing speed may be 0.5-10 m/min or 1.0-8.0 m/min.
従来の人工毛髪用繊維では、繊維が縮れていると、櫛通り性が低下する場合がある。これに対し、本実施形態に係る人工毛髪用繊維の一態様によれば、優れたボリューム感を得つつ優れた櫛通り性を得ることが可能であり、例えば、後述の実施例に記載の評価方法において、抵抗力を３００ｇｆ以下（例えば２５０ｇｆ以下）に低減できる。
With conventional artificial hair fibers, if the fibers are crimped, combability may deteriorate. On the other hand, according to one aspect of the fiber for artificial hair according to the present embodiment, it is possible to obtain excellent combability while obtaining an excellent voluminous feel. In the method, the drag force can be reduced to 300 gf or less (eg 250 gf or less).
人工毛髪用繊維に対しては、溶融紡糸等を行う際に繊維が切断されること（糸切れ）を抑制することが求められ、紡糸性に優れていることが求められる場合がある。これに対し、本実施形態に係る人工毛髪用繊維の一態様によれば、優れた紡糸性を得ることが可能であり、例えば、後述の実施例に記載の評価方法において、糸切れを３回以下に抑えることができる。
For artificial hair fibers, it is required to suppress fiber breakage (thread breakage) during melt spinning, etc., and excellent spinnability may be required. On the other hand, according to one aspect of the fiber for artificial hair according to the present embodiment, it is possible to obtain excellent spinnability. can be reduced to the following.
本実施形態に係る人工毛髪用繊維の１００℃における熱収縮率は、優れたボリューム感を得る観点から、７％以上である。熱収縮率は、優れたボリューム感が得られやすい観点から、８％以上、９％以上、１０％以上、１１％以上、１２％以上、１５％以上、１８％以上、１９％以上、２０％以上、２２％以上、２３％以上、２５％以上、又は、２８％以上であってよい。熱収縮率は、優れた櫛通り性が得られやすい観点から、４０％以下、３５％以下、３０％以下、２８％以下、２５％以下、２３％以下、２２％以下、２０％以下、１９％以下、１８％以下、１５％以下、１２％以下、１１％以下、１０％以下、９％以下、又は、８％以下であってよい。これらの観点から、熱収縮率は、７～４０％、７～３０％、８～３０％、８～２８％、１０～２８％、１２～２８％、１５～２８％、２０～２８％、２２～２８％、７～２５％、８～２５％、８～２２％、８～２０％、８～１５％、１０～２５％、１５～２５％、又は、２０～２５％であってよい。
The heat shrinkage rate at 100°C of the fiber for artificial hair according to this embodiment is 7% or more from the viewpoint of obtaining an excellent voluminous feel. The heat shrinkage rate is 8% or more, 9% or more, 10% or more, 11% or more, 12% or more, 15% or more, 18% or more, 19% or more, 20% from the viewpoint of easily obtaining an excellent voluminous feel. 22% or more, 23% or more, 25% or more, or 28% or more. The heat shrinkage rate is 40% or less, 35% or less, 30% or less, 28% or less, 25% or less, 23% or less, 22% or less, 20% or less, 19%, from the viewpoint of easily obtaining excellent combability. % or less, 18% or less, 15% or less, 12% or less, 11% or less, 10% or less, 9% or less, or 8% or less. From these viewpoints, the heat shrinkage rate is 7 to 40%, 7 to 30%, 8 to 30%, 8 to 28%, 10 to 28%, 12 to 28%, 15 to 28%, 20 to 28%, 22-28%, 7-25%, 8-25%, 8-22%, 8-20%, 8-15%, 10-25%, 15-25%, or 20-25% .
本実施形態に係る人工毛髪用繊維の１００℃における熱収縮率は、後述の実施例に記載の方法により測定できる。熱収縮率は、人工毛髪用繊維を得る際における紡糸後の加熱処理（例えば、延伸処理後の加熱処理）の加熱温度；塩化ビニル重合体の単量体単位の種類又は含有量；芳香族ビニル重合体の単量体単位の種類又は含有量などにより調整できる。本発明者は、加熱処理の加熱温度を低減することにより熱収縮率が増加しやすいことを見出し、特許文献１及び２の実施例のように加熱温度１２０℃で得られた人工毛髪用繊維の熱収縮率が充分に高くないこと（後述の比較例参照）を見出した上で、１２０℃未満（例えば１１０℃以下）の加熱温度において、熱収縮率が大きい人工毛髪用繊維が得られやすいことを見出した。
The thermal shrinkage rate at 100°C of the fiber for artificial hair according to the present embodiment can be measured by the method described in Examples below. The heat shrinkage rate is determined by the heating temperature of heat treatment after spinning (for example, heat treatment after drawing treatment) when obtaining artificial hair fibers; the type or content of monomer units of the vinyl chloride polymer; It can be adjusted by the type or content of the monomer units of the polymer. The inventors of the present invention have found that the heat shrinkage rate tends to increase by reducing the heating temperature of the heat treatment, and the artificial hair fibers obtained at a heating temperature of 120 ° C. as in the examples of Patent Documents 1 and 2 After discovering that the heat shrinkage rate is not sufficiently high (see Comparative Examples described later), artificial hair fibers with a large heat shrinkage rate can be easily obtained at a heating temperature of less than 120°C (for example, 110°C or less). I found
本実施形態に係る人工毛髪用繊維は、人工毛髪を得るために用いることができる。本実施形態に係る人工毛髪用繊維は、延伸処理後の繊維であってよく、未延伸繊維であってもよい。
The fiber for artificial hair according to this embodiment can be used to obtain artificial hair. The fibers for artificial hair according to the present embodiment may be fibers after drawing treatment, or may be undrawn fibers.
本実施形態に係る人工毛髪用繊維の単繊度は、下記の範囲であってよい。単繊度は、１０デシテックス以上、２０デシテックス以上、３０デシテックス以上、４０デシテックス以上、５０デシテックス以上、又は、６０デシテックス以上であってよい。単繊度は、１００デシテックス以下、９０デシテックス以下、８０デシテックス以下、７０デシテックス以下、又は、６０デシテックス以下であってよい。これらの観点から、単繊度は、１０～１００デシテックス、３０～９０デシテックス、又は、５０～７０デシテックスであってよい。
The single fineness of the fiber for artificial hair according to this embodiment may be within the following range. The single fineness may be 10 decitex or more, 20 decitex or more, 30 decitex or more, 40 decitex or more, 50 decitex or more, or 60 decitex or more. The single fineness may be 100 decitex or less, 90 decitex or less, 80 decitex or less, 70 decitex or less, or 60 decitex or less. From these points of view, the single fineness may be 10-100 decitex, 30-90 decitex, or 50-70 decitex.
本実施形態に係る人工毛髪用繊維は、塩化ビニル重合体（例えば塩化ビニル系樹脂）を含有する。塩化ビニル重合体は、塩化ビニルを単量体単位として有する重合体（塩化ビニル由来の構造単位を有する重合体）である。塩化ビニル重合体は、塩化ビニルの単独重合体であってよく、塩化ビニルの共重合体であってよい。塩化ビニルの共重合体は、塩化ビニルと他の化合物（塩化ビニル以外の化合物）との重合体である。
The artificial hair fiber according to this embodiment contains a vinyl chloride polymer (eg, vinyl chloride resin). A vinyl chloride polymer is a polymer having vinyl chloride as a monomer unit (a polymer having structural units derived from vinyl chloride). The vinyl chloride polymer may be a vinyl chloride homopolymer or a vinyl chloride copolymer. Copolymers of vinyl chloride are polymers of vinyl chloride and other compounds (compounds other than vinyl chloride).
塩化ビニルの共重合体としては、塩化ビニル－酢酸ビニル共重合体、塩化ビニル－プロピオン酸ビニル共重合体等の、塩化ビニルとビニルエステル類との共重合体；塩化ビニル－アクリル酸ブチル共重合体、塩化ビニル－アクリル酸－２－エチルヘキシル共重合体等の、塩化ビニルとアクリル酸エステル類との共重合体；塩化ビニル－エチレン共重合体、塩化ビニル－プロピレン共重合体等の、塩化ビニルとオレフィン類との共重合体；塩化ビニル－アクリロニトリル共重合体などが挙げられる。
Copolymers of vinyl chloride include copolymers of vinyl chloride and vinyl esters, such as vinyl chloride-vinyl acetate copolymers and vinyl chloride-vinyl propionate copolymers; vinyl chloride-butyl acrylate copolymers; Copolymers of vinyl chloride and acrylic acid esters, such as vinyl chloride-2-ethylhexyl acrylate copolymer; vinyl chloride-ethylene copolymers, vinyl chloride-propylene copolymers, etc. and olefins; and vinyl chloride-acrylonitrile copolymers.
塩化ビニル重合体は、優れたボリューム感、櫛通り性及び紡糸性が得られやすい観点から、塩化ビニルの単独重合体、塩化ビニル－エチレン共重合体、及び、塩化ビニル－酢酸ビニル共重合体からなる群より選ばれる少なくとも一種を含んでよく、塩化ビニルの単独重合体を含んでよい。
The vinyl chloride polymer is selected from vinyl chloride homopolymers, vinyl chloride-ethylene copolymers, and vinyl chloride-vinyl acetate copolymers from the viewpoint of easily obtaining excellent voluminousness, combability and spinnability. It may contain at least one selected from the group consisting of, and may contain a homopolymer of vinyl chloride.
塩化ビニル重合体は、乳化重合、塊状重合、懸濁重合等によって製造することができる。塩化ビニル重合体は、繊維の初期着色性等の観点から、懸濁重合によって製造された重合体であってよい。
A vinyl chloride polymer can be produced by emulsion polymerization, bulk polymerization, suspension polymerization, or the like. The vinyl chloride polymer may be a polymer produced by suspension polymerization from the viewpoint of initial colorability of fibers.
塩化ビニル重合体の含有量は、人工毛髪用繊維の全質量、又は、塩化ビニル重合体及び芳香族ビニル重合体の合計量を基準として、０質量％を超え１００質量％未満であり、下記の範囲であってよい。塩化ビニル重合体の含有量は、優れたボリューム感が得られやすい観点から、９８質量％以下、９６質量％以下、９５質量％以下、９５質量％未満、９０質量％以下、８５質量％以下、８３質量％以下、８０質量％以下、７５質量％以下、７０質量％以下、又は、６５質量％以下であってよい。塩化ビニル重合体の含有量は、優れた櫛通り性及び紡糸性が得られやすい観点から、４０質量％以上、４５質量％以上、５０質量％以上、５５質量％以上、６０質量％以上、６５質量％以上、７０質量％以上、７５質量％以上、８０質量％以上、８３質量％以上、８５質量％以上、９０質量％以上、９５質量％以上、９５質量％超、又は、９６質量％以上であってよい。これらの観点から、塩化ビニル重合体の含有量は、４０～９８質量％、５０～９６質量％、６０～９６質量％、６５～９６質量％、７０～９６質量％、６０～９５質量％、６５～９０質量％、６５～８０質量％、又は、６５～７０質量％であってよい。
The content of the vinyl chloride polymer is more than 0% by mass and less than 100% by mass based on the total mass of the artificial hair fiber or the total amount of the vinyl chloride polymer and the aromatic vinyl polymer, and is described below. can be a range. The content of the vinyl chloride polymer is 98% by mass or less, 96% by mass or less, 95% by mass or less, less than 95% by mass, 90% by mass or less, 85% by mass or less, from the viewpoint of easily obtaining an excellent voluminous feel. It may be 83% by mass or less, 80% by mass or less, 75% by mass or less, 70% by mass or less, or 65% by mass or less. The content of the vinyl chloride polymer is 40% by mass or more, 45% by mass or more, 50% by mass or more, 55% by mass or more, 60% by mass or more, 65% by mass or more, from the viewpoint of easily obtaining excellent combability and spinnability. % by mass or more, 70% by mass or more, 75% by mass or more, 80% by mass or more, 83% by mass or more, 85% by mass or more, 90% by mass or more, 95% by mass or more, 95% by mass or more, or 96% by mass or more can be From these viewpoints, the content of the vinyl chloride polymer is 40 to 98% by mass, 50 to 96% by mass, 60 to 96% by mass, 65 to 96% by mass, 70 to 96% by mass, 60 to 95% by mass, It may be 65-90% by weight, 65-80% by weight, or 65-70% by weight.
本実施形態に係る人工毛髪用繊維は、芳香族ビニル重合体（例えば芳香族ビニル系樹脂）を含有する。芳香族ビニル重合体は、芳香族ビニル化合物を単量体単位として有する重合体（芳香族ビニル化合物由来の構造単位を有する重合体）である。芳香族ビニル化合物としては、スチレン系化合物、ビニルトルエン、ビニルナフタレン、ビニルアントラセン等が挙げられる。芳香族ビニル重合体は、優れたボリューム感、櫛通り性及び紡糸性が得られやすい観点から、スチレン系化合物を単量体単位として有してよい。
The artificial hair fiber according to this embodiment contains an aromatic vinyl polymer (for example, an aromatic vinyl resin). An aromatic vinyl polymer is a polymer having an aromatic vinyl compound as a monomer unit (a polymer having structural units derived from an aromatic vinyl compound). Examples of aromatic vinyl compounds include styrene compounds, vinyltoluene, vinylnaphthalene, vinylanthracene, and the like. The aromatic vinyl polymer may have a styrene-based compound as a monomer unit from the viewpoint of easily obtaining excellent voluminous feel, combability and spinnability.
スチレン系化合物は、スチレン及びスチレン誘導体からなる群より選ばれる少なくとも一種を含んでよい。スチレン誘導体としては、α－メチルスチレン、ｏ－メチルスチレン、ｍ－メチルスチレン、ｐ－メチルスチレン、ｔ－ブチルスチレン、クロロスチレン等が挙げられる。スチレン系化合物は、優れたボリューム感、櫛通り性及び紡糸性が得られやすい観点から、スチレンを含んでよい。
The styrenic compound may contain at least one selected from the group consisting of styrene and styrene derivatives. Styrene derivatives include α-methylstyrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, t-butylstyrene, chlorostyrene and the like. The styrene-based compound may contain styrene from the viewpoint of easily obtaining excellent voluminous feel, combability and spinnability.
芳香族ビニル重合体は、芳香族ビニル化合物の単独重合体であってよく、芳香族ビニル化合物の共重合体（例えば芳香族ビニル系共重合体樹脂）であってよい。芳香族ビニル共重合体は、複数種の芳香族ビニル化合物を単量体単位として有する共重合体であってよく、芳香族ビニル化合物、及び、芳香族ビニル化合物とは異なる化合物を単量体単位として有する共重合体であってよい。
The aromatic vinyl polymer may be a homopolymer of an aromatic vinyl compound, or may be a copolymer of an aromatic vinyl compound (for example, an aromatic vinyl copolymer resin). The aromatic vinyl copolymer may be a copolymer having a plurality of types of aromatic vinyl compounds as monomer units, and the aromatic vinyl compound and a compound different from the aromatic vinyl compound are used as monomer units. It may be a copolymer having as
芳香族ビニル化合物とは異なる化合物としては、（メタ）アクリロニトリル、ビニル系化合物（スチレン系化合物に該当する化合物を除く）、マレイン酸無水物等が挙げられる。ビニル系化合物としては、（メタ）アクリル酸；（メタ）アクリル酸メチル、（メタ）アクリル酸エチル、（メタ）アクリル酸ｎ－ブチル、（メタ）アクリル酸－２－エチルヘキシル等の（メタ）アクリル酸エステルなどが挙げられる。芳香族ビニル重合体は、（メタ）アクリル酸エステルを単量体単位として有さなくてよい（アクリル酸エステル及びメタクリル酸エステルからなる群より選ばれる少なくとも一種を単量体単位として有さなくてよい）。芳香族ビニル重合体としては、塩化ビニルを単量体単位として有さない重合体を用いることが可能であり、ハロゲン含有化合物を単量体単位として有さない重合体を用いてよい。
Compounds different from aromatic vinyl compounds include (meth)acrylonitrile, vinyl compounds (excluding compounds corresponding to styrene compounds), maleic anhydride, and the like. Vinyl compounds include (meth)acrylic acid; methyl (meth)acrylate, ethyl (meth)acrylate, n-butyl (meth)acrylate, and 2-ethylhexyl (meth)acrylate. and acid esters. The aromatic vinyl polymer may not have a (meth)acrylic acid ester as a monomer unit (at least one selected from the group consisting of acrylic acid esters and methacrylic acid esters may not be used as a monomer unit. good). As the aromatic vinyl polymer, it is possible to use a polymer that does not have vinyl chloride as a monomer unit, and a polymer that does not have a halogen-containing compound as a monomer unit may be used.
芳香族ビニル重合体は、優れたボリューム感、櫛通り性及び紡糸性が得られやすい観点から、スチレン系化合物及び（メタ）アクリロニトリルを単量体単位として有してよく（スチレン系化合物の単量体単位、並びに、アクリロニトリルの単量体単位及びメタクリロニトリルの単量体単位からなる群より選ばれる少なくとも一種を有してよく）、スチレン及び（メタ）アクリロニトリルを単量体単位として有してよく（スチレンの単量体単位、並びに、アクリロニトリルの単量体単位及びメタクリロニトリルの単量体単位からなる群より選ばれる少なくとも一種を有してよく）、スチレン及びアクリロニトリルを単量体単位として有してよい。
The aromatic vinyl polymer may have a styrene compound and (meth)acrylonitrile as monomer units (monomer and at least one selected from the group consisting of a monomer unit of acrylonitrile and a monomer unit of methacrylonitrile), styrene and (meth)acrylonitrile as monomer units well (which may have at least one selected from the group consisting of a styrene monomer unit, and an acrylonitrile monomer unit and a methacrylonitrile monomer unit), styrene and acrylonitrile as monomer units may have
スチレン系化合物の単量体単位の割合は、芳香族ビニル重合体の全体を基準、又は、スチレン系化合物の単量体単位及び（メタ）アクリロニトリルの単量体単位の合計量（スチレン系化合物の単量体単位、アクリロニトリルの単量体単位及びメタクリロニトリルの単量体単位の合計量）を基準として下記の範囲であってよい。スチレン系化合物の単量体単位の割合は、優れたボリューム感が得られやすい観点から、５０質量％以上、５０質量％超、６０質量％以上、６０質量％超、６５質量％以上、６８質量％以上、６９質量％以上、６９質量％超、７０質量％以上、７０質量％超、７４質量％以上、７５質量％以上、８０質量％以上、８２質量％以上、８５質量％以上、８５質量％超、８６質量％以上、又は、９０質量％以上であってよい。スチレン系化合物の単量体単位の割合は、優れた櫛通り性及び紡糸性が得られやすい観点から、１００質量％未満、９５質量％以下、９０質量％以下、８８質量％以下、８８質量％未満、８６質量％以下、８５質量％以下、８５質量％未満、８２質量％以下、８０質量％以下、７５質量％以下、７０質量％以下、７０質量％未満、６９質量％以下、６９質量％未満、又は、６８質量％以下であってよい。これらの観点から、スチレン系化合物の単量体単位の割合は、５０質量％以上１００質量％未満、６０～９５質量％、６８～９０質量％、６８～８６質量％、６８～８２質量％、６８～７５質量％、６８～７０質量％、７０～９０質量％、７５～９０質量％、８２～９０質量％、８６～９０質量％、７０～８６質量％、７０～８２質量％、７０～７５質量％、７５～８６質量％、８２～８６質量％、７５～８２質量％、５０～８２質量％、６０～８２質量％、８２～９５質量％、７４～８８質量％、７４質量％以上８８質量％未満であってよい。
The proportion of styrene-based compound monomer units is based on the total aromatic vinyl polymer, or the total amount of styrene-based compound monomer units and (meth)acrylonitrile monomer units (of styrene-based compounds The total amount of monomer units, acrylonitrile monomer units and methacrylonitrile monomer units) may be in the following ranges. The ratio of the monomer unit of the styrene compound is 50% by mass or more, 50% by mass or more, 60% by mass or more, 60% by mass or more, 65% by mass or more, 68% by mass, from the viewpoint of easily obtaining an excellent voluminous feeling. % or more, 69% by mass or more, 69% by mass or more, 70% by mass or more, 70% by mass or more, 74% by mass or more, 75% by mass or more, 80% by mass or more, 82% by mass or more, 85% by mass or more, 85% by mass %, 86% by mass or more, or 90% by mass or more. The ratio of the monomer unit of the styrene compound is less than 100% by mass, 95% by mass or less, 90% by mass or less, 88% by mass or less, or 88% by mass from the viewpoint of easily obtaining excellent combability and spinnability. Less than, 86% by mass or less, 85% by mass or less, less than 85% by mass, 82% by mass or less, 80% by mass or less, 75% by mass or less, 70% by mass or less, less than 70% by mass, 69% by mass or less, 69% by mass It may be less than or 68% by mass or less. From these viewpoints, the ratio of the monomer units of the styrene compound is 50% by mass or more and less than 100% by mass, 60 to 95% by mass, 68 to 90% by mass, 68 to 86% by mass, 68 to 82% by mass, 68-75% by mass, 68-70% by mass, 70-90% by mass, 75-90% by mass, 82-90% by mass, 86-90% by mass, 70-86% by mass, 70-82% by mass, 70- 75% by mass, 75-86% by mass, 82-86% by mass, 75-82% by mass, 50-82% by mass, 60-82% by mass, 82-95% by mass, 74-88% by mass, 74% by mass or more It may be less than 88% by mass.
（メタ）アクリロニトリルの単量体単位の割合（アクリロニトリルの単量体単位及びメタクリロニトリルの単量体単位の合計量の割合）は、芳香族ビニル重合体の全体を基準、又は、スチレン系化合物の単量体単位及び（メタ）アクリロニトリルの単量体単位の合計量（スチレン系化合物の単量体単位、アクリロニトリルの単量体単位及びメタクリロニトリルの単量体単位の合計量）を基準として下記の範囲であってよい。（メタ）アクリロニトリルの単量体単位の割合は、優れた櫛通り性及び紡糸性が得られやすい観点から、０質量％超、５質量％以上、１０質量％以上、１２質量％以上、１２質量％超、１４質量％以上、１５質量％以上、１５質量％超、１８質量％以上、２０質量％以上、２５質量％以上、３０質量％以上、３０質量％超、３１質量％以上、３１質量％超、又は、３２質量％以上であってよい。（メタ）アクリロニトリルの単量体単位の割合は、人工毛髪用繊維の色味を抑制する観点から、５０質量％以下、５０質量％未満、４０質量％以下、４０質量％未満、３５質量％以下、３２質量％以下、３１質量％以下、３１質量％未満、３０質量％以下、３０質量％未満、２６質量％以下、２５質量％以下、２０質量％以下、１８質量％以下、１５質量％以下、１５質量％未満、１４質量％以下、又は、１０質量％以下であってよい。これらの観点から、（メタ）アクリロニトリルの単量体単位の割合は、０質量％超５０質量％以下、５～４０質量％、１０～３２質量％、１４～３２質量％、１８～３２質量％、２５～３２質量％、３０～３２質量％、１０～３０質量％、１０～２５質量％、１０～１８質量％、１０～１４質量％、１４～３０質量％、１８～３０質量％、２５～３０質量％、１４～２５質量％、１４～１８質量％、１８～２５質量％、１８～５０質量％、１８～４０質量％、５～１８質量％、１２～２６質量％、又は、１２質量％超２６質量％以下であってよい。
The proportion of (meth)acrylonitrile monomeric units (percentage of the total amount of acrylonitrile monomeric units and methacrylonitrile monomeric units) is based on the entire aromatic vinyl polymer, or a styrenic compound and the total amount of (meth)acrylonitrile monomer units (the total amount of styrene compound monomer units, acrylonitrile monomer units and methacrylonitrile monomer units) It may be in the following range. The ratio of the (meth)acrylonitrile monomer unit is more than 0% by mass, 5% by mass or more, 10% by mass or more, 12% by mass or more, and 12% by mass from the viewpoint of easily obtaining excellent combability and spinnability. %, 14% by mass or more, 15% by mass or more, 15% by mass or more, 18% by mass or more, 20% by mass or more, 25% by mass or more, 30% by mass or more, more than 30% by mass, 31% by mass or more, 31% by mass % or 32% by mass or more. The ratio of the (meth)acrylonitrile monomer unit is 50% by mass or less, 50% by mass or less, 40% by mass or less, 40% by mass or less, and 35% by mass or less from the viewpoint of suppressing the color of the artificial hair fiber. , 32% by mass or less, 31% by mass or less, less than 31% by mass, 30% by mass or less, less than 30% by mass, 26% by mass or less, 25% by mass or less, 20% by mass or less, 18% by mass or less, 15% by mass or less , less than 15% by weight, 14% by weight or less, or 10% by weight or less. From these viewpoints, the proportion of (meth) acrylonitrile monomer units is more than 0% by mass and 50% by mass or less, 5 to 40% by mass, 10 to 32% by mass, 14 to 32% by mass, 18 to 32% by mass. , 25 to 32 mass%, 30 to 32 mass%, 10 to 30 mass%, 10 to 25 mass%, 10 to 18 mass%, 10 to 14 mass%, 14 to 30 mass%, 18 to 30 mass%, 25 ~30% by mass, 14-25% by mass, 14-18% by mass, 18-25% by mass, 18-50% by mass, 18-40% by mass, 5-18% by mass, 12-26% by mass, or 12 It may be more than 26% by mass or less.
スチレン系化合物の単量体単位の割合及び（メタ）アクリロニトリルの単量体単位の割合の組み合わせは任意であり、スチレン系化合物の単量体単位の割合及び（メタ）アクリロニトリルの単量体単位の割合のそれぞれは、上述の各範囲であってよい。例えば、芳香族ビニル重合体は、芳香族ビニル重合体の全体を基準、又は、スチレン系化合物の単量体単位及び（メタ）アクリロニトリルの単量体単位の合計量（スチレン系化合物の単量体単位、アクリロニトリルの単量体単位及びメタクリロニトリルの単量体単位の合計量）を基準として、スチレン系化合物の単量体単位の割合が５０～９５質量％であると共に（メタ）アクリロニトリルの単量体単位の割合が５～５０質量％である態様であってよく、スチレン系化合物の単量体単位の割合が６８～９０質量％であると共に（メタ）アクリロニトリルの単量体単位の割合が１０～３２質量％である態様であってよく、スチレン系化合物の単量体単位の割合が７４～８８質量％であると共に（メタ）アクリロニトリルの単量体単位の割合が１２～２６質量％である態様であってよい。
The combination of the ratio of the monomer units of the styrene compound and the ratio of the (meth)acrylonitrile monomer units is arbitrary, and the ratio of the monomer units of the styrene compound and the ratio of the (meth)acrylonitrile monomer units Each of the percentages may be in each of the above ranges. For example, the aromatic vinyl polymer is based on the whole aromatic vinyl polymer, or the total amount of the monomer units of the styrene compound and the monomer units of (meth)acrylonitrile (the monomer of the styrene compound unit, the total amount of acrylonitrile monomer units and methacrylonitrile monomer units), the ratio of the monomer units of the styrene compound is 50 to 95% by mass, and the (meth) acrylonitrile unit The ratio of the monomer unit may be 5 to 50% by mass, and the ratio of the monomer unit of the styrene compound is 68 to 90% by mass and the ratio of the monomer unit of (meth)acrylonitrile is 10 to 32% by mass, the ratio of the monomer units of the styrene compound is 74 to 88% by mass, and the ratio of the (meth)acrylonitrile monomer units is 12 to 26% by mass. It may be in one aspect.
芳香族ビニル重合体においてスチレン系化合物の単量体単位及び（メタ）アクリロニトリルの単量体単位の合計量（スチレン系化合物の単量体単位、アクリロニトリルの単量体単位及びメタクリロニトリルの単量体単位の合計量）は、優れたボリューム感、櫛通り性及び紡糸性が得られやすい観点から、芳香族ビニル重合体の全体を基準として、５０質量％以上、６０質量％以上、７０質量％以上、８０質量％以上、９０質量％以上、９２質量％以上、９５質量％以上、９６質量％以上、９８質量％以上、９９質量％以上、９９．５質量％以上、又は、実質的に１００質量％であってよい。
The total amount of styrene compound monomer units and (meth)acrylonitrile monomer units in the aromatic vinyl polymer (styrene compound monomer units, acrylonitrile monomer units and methacrylonitrile monomer units The total amount of body units) is 50% by mass or more, 60% by mass or more, and 70% by mass based on the entire aromatic vinyl polymer, from the viewpoint of easily obtaining excellent voluminousness, combability and spinnability. 80% by mass or more, 90% by mass or more, 92% by mass or more, 95% by mass or more, 96% by mass or more, 98% by mass or more, 99% by mass or more, 99.5% by mass or more, or substantially 100% by mass % by mass.
芳香族ビニル重合体の含有量は、人工毛髪用繊維の全質量、又は、塩化ビニル重合体及び芳香族ビニル重合体の合計量を基準として、０質量％を超え１００質量％未満であり、下記の範囲であってよい。芳香族ビニル重合体の含有量は、優れたボリューム感が得られやすい観点から、２質量％以上、４質量％以上、５質量％以上、５質量％超、１０質量％以上、１５質量％以上、１７質量％以上、２０質量％以上、２５質量％以上、３０質量％以上、又は、３５質量％以上であってよい。芳香族ビニル重合体の含有量は、優れた櫛通り性及び紡糸性が得られやすい観点から、６０質量％以下、５５質量％以下、５０質量％以下、４５質量％以下、４０質量％以下、３５質量％以下、３０質量％以下、２５質量％以下、２０質量％以下、１７質量％以下、１５質量％以下、１０質量％以下、５質量％以下、５質量％未満、又は、４質量％以下であってよい。これらの観点から、芳香族ビニル重合体の含有量は、２～６０質量％、４～５０質量％、４～４０質量％、４～３５質量％、４～３０質量％、５～４０質量％、１０～３５質量％、２０～３５質量％、又は、３０～３５質量％であってよい。
The content of the aromatic vinyl polymer is more than 0% by mass and less than 100% by mass based on the total mass of the artificial hair fiber or the total amount of the vinyl chloride polymer and the aromatic vinyl polymer, and is described below. may be in the range of The content of the aromatic vinyl polymer is 2% by mass or more, 4% by mass or more, 5% by mass or more, 5% by mass or more, 10% by mass or more, 15% by mass or more, from the viewpoint of easily obtaining an excellent voluminous feel. , 17 mass % or more, 20 mass % or more, 25 mass % or more, 30 mass % or more, or 35 mass % or more. The content of the aromatic vinyl polymer is 60% by mass or less, 55% by mass or less, 50% by mass or less, 45% by mass or less, 40% by mass or less, from the viewpoint of easily obtaining excellent combability and spinnability. 35% by mass or less, 30% by mass or less, 25% by mass or less, 20% by mass or less, 17% by mass or less, 15% by mass or less, 10% by mass or less, 5% by mass or less, less than 5% by mass, or 4% by mass may be: From these viewpoints, the content of the aromatic vinyl polymer is 2 to 60% by mass, 4 to 50% by mass, 4 to 40% by mass, 4 to 35% by mass, 4 to 30% by mass, and 5 to 40% by mass. , 10 to 35% by weight, 20 to 35% by weight, or 30 to 35% by weight.
塩化ビニル重合体の含有量及び芳香族ビニル重合体の含有量の組み合わせは任意であり、塩化ビニル重合体の含有量及び芳香族ビニル重合体の含有量のそれぞれは、上述の各範囲であってよい。例えば、本実施形態に係る人工毛髪用繊維は、人工毛髪用繊維の全質量、又は、塩化ビニル重合体及び芳香族ビニル重合体の合計量を基準として、塩化ビニル重合体の含有量が４０～９８質量％であると共に芳香族ビニル重合体の含有量が２～６０質量％である態様であってよく、塩化ビニル重合体の含有量が６０～９５質量％であると共に芳香族ビニル重合体の含有量が５～４０質量％である態様であってよく、塩化ビニル重合体の含有量が６８～９０質量％であると共に芳香族ビニル重合体の含有量が１０～３２質量％である態様であってよい。
Any combination of the content of the vinyl chloride polymer and the content of the aromatic vinyl polymer may be used, and the content of the vinyl chloride polymer and the content of the aromatic vinyl polymer may be within the ranges described above. good. For example, the artificial hair fiber according to the present embodiment has a vinyl chloride polymer content of 40 to 40, based on the total weight of the artificial hair fiber or the total amount of the vinyl chloride polymer and the aromatic vinyl polymer. 98% by mass and the content of the aromatic vinyl polymer is 2 to 60% by mass, and the content of the vinyl chloride polymer is 60 to 95% by mass and the content of the aromatic vinyl polymer is The content may be 5 to 40% by mass, and the content of the vinyl chloride polymer is 68 to 90% by mass and the content of the aromatic vinyl polymer is 10 to 32% by mass. It's okay.
塩化ビニル重合体及び芳香族ビニル重合体の合計量は、人工毛髪用繊維の全質量を基準として、５０質量％以上、６０質量％以上、７０質量％以上、８０質量％以上、９０質量％以上、９２質量％以上、９５質量％以上、９６質量％以上、９８質量％以上、９９質量％以上、９９．５質量％以上、又は、実質的に１００質量％であってよい。
The total amount of the vinyl chloride polymer and the aromatic vinyl polymer is 50% by mass or more, 60% by mass or more, 70% by mass or more, 80% by mass or more, and 90% by mass or more, based on the total mass of the artificial hair fiber. , 92% by weight or more, 95% by weight or more, 96% by weight or more, 98% by weight or more, 99% by weight or more, 99.5% by weight or more, or substantially 100% by weight.
本実施形態に係る人工毛髪用繊維は、塩化ビニル重合体及び芳香族ビニル重合体以外の成分を含有してよい。このような成分としては、塩化ビニル重合体及び芳香族ビニル重合体以外の重合体（ポリプロピレン等のポリオレフィン；ポリエチレンテレフタレート；（メタ）アクリル酸、（メタ）アクリル酸エステル等の（メタ）アクリル酸化合物の重合体など）、帯電防止剤、熱安定剤、滑剤、加工助剤、可塑剤、強化剤、紫外線吸収剤、酸化防止剤、充填剤、難燃剤、顔料、初期着色改善剤、導電性付与剤、香料などが挙げられる。本実施形態に係る人工毛髪用繊維は、このような成分の少なくとも一種を含有しなくてよく、ポリオレフィン（ポリプロピレン等）、ポリエチレンテレフタレート及び（メタ）アクリル酸化合物（（メタ）アクリル酸、（メタ）アクリル酸エステル等）の重合体からなる群より選ばれる少なくとも一種を含有しなくてよい。
The artificial hair fiber according to this embodiment may contain components other than the vinyl chloride polymer and the aromatic vinyl polymer. Examples of such components include polymers other than vinyl chloride polymers and aromatic vinyl polymers (polyolefins such as polypropylene; polyethylene terephthalate; (meth)acrylic acid, (meth)acrylic acid compounds such as (meth)acrylic acid esters, etc.); polymer, etc.), antistatic agents, heat stabilizers, lubricants, processing aids, plasticizers, reinforcing agents, UV absorbers, antioxidants, fillers, flame retardants, pigments, initial coloration improvers, conductivity imparting agents, fragrances, etc. The artificial hair fiber according to the present embodiment may not contain at least one of such components, and polyolefin (polypropylene, etc.), polyethylene terephthalate, and (meth)acrylic acid compounds ((meth)acrylic acid, (meth) at least one selected from the group consisting of polymers such as acrylic acid esters, etc.).
帯電防止剤としては、カチオン系、アニオン系、両性系等の帯電防止剤などが挙げられる。帯電防止剤の含有量（配合量）は、塩化ビニル重合体及び芳香族ビニル重合体の合計１００質量部、又は、人工毛髪用繊維（繊維状樹脂組成物）１００質量部に対して０．０１～１質量部であってよい。
Examples of antistatic agents include cationic, anionic, and amphoteric antistatic agents. The content (blending amount) of the antistatic agent is 0.01 per 100 parts by mass of the total of the vinyl chloride polymer and the aromatic vinyl polymer, or 100 parts by mass of the artificial hair fiber (fibrous resin composition). It may be up to 1 part by mass.
熱安定剤は、成形時の熱分解、ロングラン性、フィラメントの色調等を調整するために使用することができる。熱安定剤としては、Ｃａ－Ｚｎ系熱安定剤、ハイドロタルサイト系熱安定剤、錫系熱安定剤、エポキシ系熱安定剤、β－ジケトン系熱安定剤等が挙げられる。熱安定剤の含有量（配合量）は、塩化ビニル重合体及び芳香族ビニル重合体の合計１００質量部、又は、人工毛髪用繊維（繊維状樹脂組成物）１００質量部に対して０．１～５．０質量部であってよい。
Thermal stabilizers can be used to adjust thermal decomposition during molding, long-run properties, filament color tone, etc. Examples of heat stabilizers include Ca—Zn-based heat stabilizers, hydrotalcite-based heat stabilizers, tin-based heat stabilizers, epoxy-based heat stabilizers, β-diketone-based heat stabilizers, and the like. The content (blended amount) of the heat stabilizer is 0.1 per 100 parts by mass of the vinyl chloride polymer and the aromatic vinyl polymer in total, or 100 parts by mass of the artificial hair fiber (fibrous resin composition). It may be up to 5.0 parts by mass.
Ｃａ－Ｚｎ系熱安定剤としては、ステアリン酸亜鉛、ステアリン酸カルシウム、１２－ヒドロキシステアリン酸亜鉛、１２－ヒドロキシステアリン酸カルシウム等が挙げられる。ハイドロタルサイト系熱安定剤としては、ハイドロタルサイト化合物等が挙げられる。ハイドロタルサイト化合物としては、マグネシウム及び／又はアルカリ金属とアルミニウムとからなる複合塩化合物；亜鉛、マグネシウム及びアルミニウムからなる複合塩化合物；結晶水を脱水した化合物等が挙げられる。錫系熱安定剤としては、ジメチルスズメルカプト、ジメチルスズメルカプタイド、ジブチルスズメルカプト、ジオクチルスズメルカプト、ジオクチルスズメルカプトポリマー、ジオクチルスズメルカプトアセテート等のメルカプト錫系熱安定剤；ジメチルスズマレエート、ジブチルスズマレエート、ジオクチルスズマレエート、ジオクチルスズマレエートポリマー等のマレエート錫系熱安定剤；ジメチルスズラウレート、ジブチルスズラウレート、ジオクチルスズラウレート等のラウレート錫系熱安定剤などが挙げられる。エポキシ系熱安定剤としては、エポキシ化大豆油、エポキシ化アマニ油等が挙げられる。β－ジケトン系熱安定剤としては、ステアロイルベンゾイルメタン（ＳＢＭ）、ジベンゾイルメタン（ＤＢＭ）等が挙げられる。
Ca-Zn-based heat stabilizers include zinc stearate, calcium stearate, zinc 12-hydroxystearate, calcium 12-hydroxystearate, and the like. Examples of hydrotalcite-based heat stabilizers include hydrotalcite compounds. Examples of hydrotalcite compounds include complex salt compounds composed of magnesium and/or alkali metals and aluminum; complex salt compounds composed of zinc, magnesium and aluminum; and compounds obtained by dehydrating water of crystallization. The tin heat stabilizers include mercaptotin heat stabilizers such as dimethyltin mercapto, dimethyltin mercaptide, dibutyltin mercapto, dioctyltin mercapto, dioctyltin mercapto polymer, and dioctyltin mercaptoacetate; maleate tin heat stabilizers such as ate, dioctyltin maleate, dioctyltin maleate polymer; and laurate tin heat stabilizers such as dimethyltin laurate, dibutyltin laurate and dioctyltin laurate. Epoxy heat stabilizers include epoxidized soybean oil and epoxidized linseed oil. β-diketone heat stabilizers include stearoylbenzoylmethane (SBM), dibenzoylmethane (DBM) and the like.
滑剤は、加工機の金属面との摩擦及び樹脂間の摩擦を減少させ、流動性を良くして加工性を調整するために使用することができる。滑剤としては、金属石鹸系滑剤、高級脂肪酸系滑剤、エステル系滑剤、高級アルコール系滑剤、炭化水素系滑剤等が挙げられる。滑剤の含有量（配合量）は、塩化ビニル重合体及び芳香族ビニル重合体の合計１００質量部、又は、人工毛髪用繊維（繊維状樹脂組成物）１００質量部に対して０．２～５．０質量部であってよい。
Lubricants can be used to reduce friction with the metal surface of processing machines and friction between resins, improve fluidity, and adjust workability. Lubricants include metal soap-based lubricants, higher fatty acid-based lubricants, ester-based lubricants, higher alcohol-based lubricants, hydrocarbon-based lubricants, and the like. The content (blended amount) of the lubricant is 0.2 to 5 parts per 100 parts by mass of the vinyl chloride polymer and the aromatic vinyl polymer in total, or 100 parts by mass of the artificial hair fiber (fibrous resin composition). 0 parts by mass.
金属石鹸系滑剤としては、金属石鹸（例えば、Ｎａ、Ｍｇ、Ａｌ、Ｃａ、Ｂａ等のステアレート、ラウレート、パルミテート、オレエート）などが挙げられる。高級脂肪酸系滑剤としては、ステアリン酸、パルミチン酸、ミリスチン酸、ラウリン酸、カプリン酸等の飽和脂肪酸；オレイン酸等の不飽和脂肪酸；これらの混合物などが挙げられる。エステル系滑剤としては、ペンタエリスリトール系滑剤、モンタン酸ワックス系滑剤、アルコールと脂肪酸からなる滑剤等が挙げられる。ペンタエリスリトール系滑剤としては、ペンタエリスリトール又はジペンタエリスリトールと高級脂肪酸とのモノエステル、ジエステル、トリエステル又はテトラエステル；これらの混合物等が挙げられる。モンタン酸ワックス系滑剤としては、モンタン酸と高級アルコール（ステアリルアルコール、パルミチルアルコール、ミリスチルアルコール、ラウリルアルコール、オレイルアルコール等）とのエステル類などが挙げられる。高級アルコール系滑剤としては、ステアリルアルコール、パルミチルアルコール、ミリスチルアルコール、ラウリルアルコール、オレイルアルコール等が挙げられる。炭化水素系滑剤としては、ポリエチレンワックス、ポリプロピレンワックス等が挙げられる。
Examples of metallic soap-based lubricants include metallic soaps (eg stearates, laurates, palmitates, oleates such as Na, Mg, Al, Ca, and Ba). Higher fatty acid lubricants include saturated fatty acids such as stearic acid, palmitic acid, myristic acid, lauric acid and capric acid; unsaturated fatty acids such as oleic acid; and mixtures thereof. Examples of ester-based lubricants include pentaerythritol-based lubricants, montanic acid wax-based lubricants, lubricants composed of alcohol and fatty acid, and the like. Examples of pentaerythritol-based lubricants include monoesters, diesters, triesters, and tetraesters of pentaerythritol or dipentaerythritol and higher fatty acids; and mixtures thereof. Examples of montanic acid wax-based lubricants include esters of montanic acid and higher alcohols (stearyl alcohol, palmityl alcohol, myristyl alcohol, lauryl alcohol, oleyl alcohol, etc.). Higher alcohol-based lubricants include stearyl alcohol, palmityl alcohol, myristyl alcohol, lauryl alcohol, and oleyl alcohol. Hydrocarbon-based lubricants include polyethylene wax, polypropylene wax, and the like.
本実施形態に係る人工毛髪用繊維における塩化ビニル系アクリルグラフト共重合体の含有量は、塩化ビニル重合体及びビニル重合体（例えば芳香族ビニル重合体）の合計１００質量部に対して、１質量部以下、１質量部未満、０．１質量部以下、０．０１質量部以下、又は、実質的に０質量部であってよい。
The content of the vinyl chloride-based acrylic graft copolymer in the artificial hair fiber according to the present embodiment is 1 mass with respect to a total of 100 mass parts of the vinyl chloride polymer and the vinyl polymer (for example, the aromatic vinyl polymer). parts or less, less than 1 part by weight, 0.1 parts by weight or less, 0.01 parts by weight or less, or substantially 0 parts by weight.
本実施形態に係る人工毛髪用繊維の製造方法は、塩化ビニル重合体及び芳香族ビニル重合体を含有する基材繊維を加熱処理することにより人工毛髪用繊維を得る加熱工程を備える。基材繊維は、後述の延伸工程で得られた繊維であってよい。加熱工程では、例えば、熱処理機を用いて、空気雰囲気下において、繊維全長が処理前の０．５～０．９倍に収縮するまで基材繊維を加熱処理してよい。
The method for producing fibers for artificial hair according to the present embodiment includes a heating step of obtaining fibers for artificial hair by heat-treating base fibers containing a vinyl chloride polymer and an aromatic vinyl polymer. The base fibers may be fibers obtained in the drawing step described below. In the heating step, for example, the base fiber may be heat-treated in an air atmosphere using a heat treatment machine until the total length of the fiber is shrunk 0.5 to 0.9 times that before the treatment.
基材繊維のガラス転移温度（Ｔｇ）は、下記の範囲であってよい。ガラス転移温度は、優れた櫛通り性が得られやすい観点から、８０℃以上、８５℃以上、９０℃以上、９４℃以上、９５℃以上、１００℃以上、１０４℃以上、１０５℃以上、１０８℃以上、１０９℃以上、１１０℃以上、１１５℃以上、１１６℃以上、１２０℃以上、又は、１２４℃以上であってよい。ガラス転移温度は、優れたボリューム感が得られやすい観点から、１５０℃以下、１４０℃以下、１３０℃以下、１２５℃以下、１２４℃以下、１２０℃以下、１１６℃以下、１１５℃以下、１１０℃以下、１０９℃以下、１０８℃以下、１０５℃以下、１０４℃以下、又は、１００℃以下であってよい。ガラス転移温度は、９５℃以下、又は、９４℃以下であってもよい。これらの観点から、ガラス転移温度は、８０～１５０℃、９４～１２４℃、又は、１００～１１５℃であってよい。ガラス転移温度は、後述の実施例に記載の方法により測定できる。
The glass transition temperature (Tg) of the base fiber may be within the following range. The glass transition temperature is 80° C. or higher, 85° C. or higher, 90° C. or higher, 94° C. or higher, 95° C. or higher, 100° C. or higher, 104° C. or higher, 105° C. or higher, 108° C. or higher, from the viewpoint of easily obtaining excellent combability. °C or higher, 109 °C or higher, 110 °C or higher, 115 °C or higher, 116 °C or higher, 120 °C or higher, or 124 °C or higher. The glass transition temperature is 150° C. or less, 140° C. or less, 130° C. or less, 125° C. or less, 124° C. or less, 120° C. or less, 116° C. or less, 115° C. or less, 110° C. or less from the viewpoint of easily obtaining an excellent voluminous feel. 109° C. or lower, 108° C. or lower, 105° C. or lower, 104° C. or lower, or 100° C. or lower. The glass transition temperature may be 95°C or lower, or 94°C or lower. From these points of view, the glass transition temperature may be 80-150°C, 94-124°C, or 100-115°C. The glass transition temperature can be measured by the method described in Examples below.
加熱工程における加熱温度は、１２０℃未満、１１５℃以下、１１０℃以下、又は、１０５℃以下であってよい。加熱工程における加熱温度は、８０℃以上、９０℃以上、１００℃以上、１０５℃以上、又は、１１０℃以上であってよい。これらの観点から、加熱工程における加熱温度は、８０℃以上１２０℃未満、９０～１１５℃、又は、１００～１１０℃であってよい。
The heating temperature in the heating step may be less than 120°C, 115°C or less, 110°C or less, or 105°C or less. The heating temperature in the heating step may be 80° C. or higher, 90° C. or higher, 100° C. or higher, 105° C. or higher, or 110° C. or higher. From these points of view, the heating temperature in the heating step may be 80 to 120°C, 90 to 115°C, or 100 to 110°C.
本実施形態に係る人工毛髪用繊維の製造方法では、１２０℃未満（例えば１１０℃以下）の加熱温度において、１００℃における熱収縮率が大きい人工毛髪用繊維が得られやすい。例えば、基材繊維のガラス転移温度が低く（例えば、ガラス転移温度が１２０℃未満である）、ガラス転移温度と熱収縮率の温度１００℃との温度差が小さい場合において、加熱温度が１２０℃未満であると、熱収縮率が大きい人工毛髪用繊維が得られやすい。また、基材繊維のガラス転移温度が高く（例えば、ガラス転移温度が１２０℃以上である）場合、ガラス転移温度と熱収縮率の温度１００℃との温度差が大きい場合であっても、加熱温度が１２０℃未満であると、熱収縮率が大きい人工毛髪用繊維が得られやすい。
In the method for producing fibers for artificial hair according to the present embodiment, fibers for artificial hair having a large thermal shrinkage at 100°C can be easily obtained at a heating temperature of less than 120°C (for example, 110°C or lower). For example, when the base fiber has a low glass transition temperature (for example, the glass transition temperature is less than 120°C) and the temperature difference between the glass transition temperature and the heat shrinkage temperature of 100°C is small, the heating temperature is 120°C. If it is less than that, it is easy to obtain fibers for artificial hair with a large heat shrinkage. Further, when the glass transition temperature of the base material fiber is high (for example, the glass transition temperature is 120°C or higher), even if the temperature difference between the glass transition temperature and the temperature of the thermal shrinkage rate of 100°C is large, heating When the temperature is less than 120°C, it is easy to obtain fibers for artificial hair with a large heat shrinkage.
本実施形態に係る人工毛髪用繊維の製造方法は、塩化ビニル重合体と芳香族ビニル重合体とを溶融混練する溶融混練工程を備えてよい。溶融混練工程では、例えば、塩化ビニル重合体及び芳香族ビニル重合体を攪拌混合してパウダーコンパウンドを得た後、パウダーコンパウンドを溶融混練してペレットコンパウンドを得る。塩化ビニル重合体及び芳香族ビニル重合体の攪拌混合の際に、適宜、帯電防止剤、熱安定剤、滑剤等を混合してよい。パウダーコンパウンドを得る攪拌混合では、ヘンシェルミキサー、スーパーミキサー、リボンブレンダー等を用いることができる。ペレットコンパウンドを得る溶融混練では、単軸押出機、異方向２軸押出機、コニカル２軸押出機、同方向２軸押出機、コニーダー、プラネタリーギアー押出機、ロール混練機等を用いることができる。
The method for producing fibers for artificial hair according to the present embodiment may include a melt-kneading step of melt-kneading the vinyl chloride polymer and the aromatic vinyl polymer. In the melt-kneading step, for example, the vinyl chloride polymer and the aromatic vinyl polymer are stirred and mixed to obtain a powder compound, and then the powder compound is melt-kneaded to obtain a pellet compound. When stirring and mixing the vinyl chloride polymer and the aromatic vinyl polymer, an antistatic agent, a heat stabilizer, a lubricant, and the like may be appropriately mixed. For stirring and mixing to obtain a powder compound, a Henschel mixer, super mixer, ribbon blender, or the like can be used. For melt-kneading to obtain a pellet compound, 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, a roll kneader, etc. can be used. .
本実施形態に係る人工毛髪用繊維の製造方法は、溶融混練工程の後に、塩化ビニル重合体及び芳香族ビニル重合体を含有する樹脂組成物（溶融混練工程で得られたペレットコンパウンド）を溶融紡糸する溶融紡糸工程を備えてよい。溶融紡糸工程では、例えば、ノズル孔を複数有する金属製ノズルを用いて、シリンダー温度１４０～１９０℃、ノズル温度１８０±１５℃の条件で樹脂組成物を押し出して溶融紡糸する。押し出しには、単軸押出機、異方向２軸押出機、コニカル２軸押出機等を用いてよく、口径３０～８５ｍｍφの単軸押出機、又は、口径３０～５０ｍｍφのコニカル押出機を用いてよい。
In the method for producing fibers for artificial hair according to the present embodiment, after the melt-kneading step, a resin composition containing a vinyl chloride polymer and an aromatic vinyl polymer (a pellet compound obtained in the melt-kneading step) is melt-spun. It may comprise a melt spinning process to In the melt spinning step, for example, a metal nozzle having a plurality of nozzle holes is used to extrude the resin composition under the conditions of a cylinder temperature of 140 to 190° C. and a nozzle temperature of 180±15° C. to perform melt spinning. For extrusion, a single-screw extruder, a counter-rotating twin-screw extruder, a conical twin-screw extruder, or the like may be used. good.
本実施形態に係る人工毛髪用繊維の製造方法は、溶融紡糸工程の後に、溶融紡糸工程で得られた繊維を巻き取る巻き取り工程を備えてよい。巻き取り工程において、溶融紡糸工程で得られた繊維は、加熱円筒（加熱円筒温度：約２５０℃）に導入され、瞬間的に加熱処理された後、引取機にて巻き取られてよい。巻き取りの際、繊維の単繊度が１５０～２０６デシテックスになるように引取速度を調整してよい。
The method for producing fibers for artificial hair according to the present embodiment may include a winding step for winding the fibers obtained in the melt spinning step after the melt spinning step. In the winding process, the fiber obtained in the melt spinning process may be introduced into a heating cylinder (heating cylinder temperature: about 250° C.), instantaneously heat-treated, and then wound up by a take-up machine. During winding, the take-up speed may be adjusted so that the single fineness of the fiber is 150-206 decitex.
本実施形態に係る人工毛髪用繊維の製造方法は、巻き取り工程の後に、繊維（未延伸繊維）を延伸処理することにより基材繊維（加熱工程で加熱処理される基材繊維）を得る延伸工程を備えてよい。延伸工程では、例えば、未延伸繊維を延伸機（空気雰囲気下、９０～１２０℃）で２～４倍に延伸してよい。
In the method for producing fibers for artificial hair according to the present embodiment, the fibers (undrawn fibers) are drawn after the winding step to obtain base fibers (base fibers heat-treated in the heating step). A process may be provided. In the drawing step, for example, the undrawn fibers may be drawn 2 to 4 times with a drawing machine (at 90 to 120° C. in an air atmosphere).
本実施形態に係る人工毛髪用繊維束は、本実施形態に係る人工毛髪用繊維を備える。本実施形態に係る人工毛髪用繊維束は、本実施形態に係る人工毛髪用繊維を複数備える態様であってよい。本実施形態に係る人工毛髪用繊維束の一態様は、本実施形態に係る人工毛髪用繊維からなる繊維束であってよい。本実施形態に係る人工毛髪用繊維束の他の一態様は、本実施形態に係る人工毛髪用繊維に加えて、当該人工毛髪用繊維とは異なる繊維（人工毛髪用繊維；本実施形態に係る人工毛髪用繊維に該当しない繊維）を更に備えてよく、すなわち、本実施形態に係る人工毛髪用繊維と、当該人工毛髪用繊維とは異なる繊維と、を備えてよい。
The fiber bundle for artificial hair according to this embodiment includes the fiber for artificial hair according to this embodiment. The fiber bundle for artificial hair according to the present embodiment may be provided with a plurality of fibers for artificial hair according to the present embodiment. One aspect of the fiber bundle for artificial hair according to this embodiment may be a fiber bundle made of the fiber for artificial hair according to this embodiment. Another aspect of the fiber bundle for artificial hair according to the present embodiment includes, in addition to the fibers for artificial hair according to the present embodiment, fibers different from the fibers for artificial hair (fibers for artificial hair; fibers for artificial hair according to the present embodiment). Fibers that do not correspond to fibers for artificial hair) may be further provided, that is, fibers for artificial hair according to the present embodiment and fibers different from the fibers for artificial hair may be provided.
本実施形態に係る人工毛髪用繊維と、当該人工毛髪用繊維とは異なる繊維と、を併用することにより、優れたボリューム感を得つつ他の所望の特性を得ることができる。本実施形態に係る人工毛髪用繊維とは異なる繊維の構成材料は、塩化ビニル重合体及び芳香族ビニル重合体を含有しない繊維、塩化ビニル重合体及び芳香族ビニル重合体のうちの一方を含有する繊維、又は、１００℃における熱収縮率が７％未満である繊維であってよい。本実施形態に係る人工毛髪用繊維とは異なる繊維の構成材料としては、ポリプロピレン等のポリオレフィン；ポリエチレンテレフタレート；（メタ）アクリル酸、（メタ）アクリル酸エステル等の（メタ）アクリル酸化合物の重合体などが挙げられる。
By using the fiber for artificial hair according to the present embodiment together with a fiber different from the fiber for artificial hair, it is possible to obtain other desired properties while obtaining an excellent voluminous feel. The constituent material of the fiber, which is different from the artificial hair fiber according to the present embodiment, contains one of a vinyl chloride polymer and an aromatic vinyl polymer-free fiber, and a vinyl chloride polymer and an aromatic vinyl polymer. It may be a fiber or a fiber having a heat shrinkage of less than 7% at 100°C. Examples of constituent materials of fibers different from the artificial hair fibers according to the present embodiment include polyolefins such as polypropylene; polyethylene terephthalate; polymers of (meth)acrylic acid compounds such as (meth)acrylic acid and (meth)acrylic acid esters. etc.
本実施形態に係る人工毛髪用繊維及び人工毛髪用繊維束は、本実施形態に係る頭髪装飾製品に用いることができる。本実施形態に係る頭髪装飾製品は、本実施形態に係る人工毛髪用繊維を備えており、本実施形態に係る人工毛髪用繊維束を備えてよい。頭髪装飾製品としては、ウィッグ等が挙げられる。本実施形態に係る頭髪装飾製品における人工毛髪用繊維及び人工毛髪用繊維束は、人工毛髪用繊維を縮れさせるためのギア加工処理の前後のいずれの状態を有していてもよい。本実施形態に係る人工毛髪は、本実施形態に係る人工毛髪用繊維をギア加工処理することにより得ることができる。
The artificial hair fibers and the artificial hair fiber bundles according to this embodiment can be used in the hair decoration products according to this embodiment. The hair decoration product according to the present embodiment includes the artificial hair fibers according to the present embodiment, and may include the artificial hair fiber bundle according to the present embodiment. Examples of hair decoration products include wigs and the like. The artificial hair fibers and the artificial hair fiber bundles in the hair decoration product according to the present embodiment may be in any state before or after gear processing for crimping the artificial hair fibers. The artificial hair according to this embodiment can be obtained by subjecting the fiber for artificial hair according to this embodiment to gear processing.
以下、実施例及び比較例を示して、本発明の具体的な実施態様をより詳細に説明するが、本発明は、この実施例のみに限定されるものではない。
Specific embodiments of the present invention will be described in more detail below by showing examples and comparative examples, but the present invention is not limited only to these examples.
＜人工毛髪用繊維の作製＞
（実施例１）
塩化ビニル重合体（塩化ビニル系樹脂、塩化ビニルの単独重合体、大洋塩ビ株式会社製、商品名：ＴＨ－１０００）７０質量部、スチレン単量体単位６８質量％及びアクリロニトリル単量体単位３２質量％を含む芳香族ビニル重合体（芳香族ビニル系共重合体樹脂、デンカ株式会社製、商品名：ＧＲ－ＡＴ－６Ｓ）３０質量部、帯電防止剤（日油株式会社製、商品名：ニューエレガンＡＳＫ）０．５質量部、ハイドロタルサイト系複合塩化合物（日産化学工業株式会社製、商品名：ＣＰ－４１０Ａ）３質量部、エポキシ化大豆油（旭電化工業株式会社製、商品名：Ｏ－１３０Ｐ）０．５質量部、及び、エステル系滑剤（理研ビタミン株式会社製、商品名：ＥＷ－１００）０．８質量部からなる樹脂組成物を準備した。当該樹脂組成物を用いて、シリンダー温度１３０～１７０℃において直径（口径）４０ｍｍの押出機でコンパウンドを行うことによりペレットを作製した。次に、ノズル断面積０．０６ｍｍ２、マル型形状、孔数１２０個のノズルを用いて、シリンダー温度１４０～１９０℃、ノズル温度１８０℃において、押出し量１０ｋｇ／時間で直径３０ｍｍの押出機により上述のペレットを溶融紡糸した。その後、ノズル直下４．５ｍの位置に設けた加熱円筒（２５０℃）で１．０秒加熱処理することにより１５０デシテックスの繊維Ａ（未延伸繊維）を得た。 <Preparation of fibers for artificial hair>
(Example 1)
Vinyl chloride polymer (vinyl chloride resin, homopolymer of vinyl chloride, manufactured by Taiyo Vinyl Co., Ltd., product name: TH-1000) 70 parts by mass, styrene monomer unit 68 mass% and acrylonitrile monomer unit 32 mass % containing aromatic vinyl polymer (aromatic vinyl copolymer resin, manufactured by Denka Co., Ltd., product name: GR-AT-6S) 30 parts by mass, antistatic agent (manufactured by NOF Corporation, product name: New Elegan ASK) 0.5 parts by mass, hydrotalcite-based complex salt compound (manufactured by Nissan Chemical Industries, Ltd., product name: CP-410A) 3 parts by mass, epoxidized soybean oil (manufactured by Asahi Denka Kogyo Co., Ltd., product name: O-130P) and 0.8 parts by mass of an ester-based lubricant (manufactured by Riken Vitamin Co., Ltd., trade name: EW-100) were prepared. Using the resin composition, pellets were produced by compounding with an extruder having a diameter (aperture) of 40 mm at a cylinder temperature of 130 to 170°C. Next, using an extruder with a nozzle cross-sectional area of 0.06 mm 2 , a round shape, and 120 holes, a cylinder temperature of 140 to 190 ° C. and a nozzle temperature of 180 ° C., an extrusion rate of 10 kg / hour and a diameter of 30 mm. The pellets described above were melt spun. After that, heat treatment was performed for 1.0 second in a heating cylinder (250° C.) placed 4.5 m directly below the nozzle to obtain 150 decitex fiber A (unstretched fiber).
（実施例１）
塩化ビニル重合体（塩化ビニル系樹脂、塩化ビニルの単独重合体、大洋塩ビ株式会社製、商品名：ＴＨ－１０００）７０質量部、スチレン単量体単位６８質量％及びアクリロニトリル単量体単位３２質量％を含む芳香族ビニル重合体（芳香族ビニル系共重合体樹脂、デンカ株式会社製、商品名：ＧＲ－ＡＴ－６Ｓ）３０質量部、帯電防止剤（日油株式会社製、商品名：ニューエレガンＡＳＫ）０．５質量部、ハイドロタルサイト系複合塩化合物（日産化学工業株式会社製、商品名：ＣＰ－４１０Ａ）３質量部、エポキシ化大豆油（旭電化工業株式会社製、商品名：Ｏ－１３０Ｐ）０．５質量部、及び、エステル系滑剤（理研ビタミン株式会社製、商品名：ＥＷ－１００）０．８質量部からなる樹脂組成物を準備した。当該樹脂組成物を用いて、シリンダー温度１３０～１７０℃において直径（口径）４０ｍｍの押出機でコンパウンドを行うことによりペレットを作製した。次に、ノズル断面積０．０６ｍｍ２、マル型形状、孔数１２０個のノズルを用いて、シリンダー温度１４０～１９０℃、ノズル温度１８０℃において、押出し量１０ｋｇ／時間で直径３０ｍｍの押出機により上述のペレットを溶融紡糸した。その後、ノズル直下４．５ｍの位置に設けた加熱円筒（２５０℃）で１．０秒加熱処理することにより１５０デシテックスの繊維Ａ（未延伸繊維）を得た。 <Preparation of fibers for artificial hair>
(Example 1)
Vinyl chloride polymer (vinyl chloride resin, homopolymer of vinyl chloride, manufactured by Taiyo Vinyl Co., Ltd., product name: TH-1000) 70 parts by mass, styrene monomer unit 68 mass% and acrylonitrile monomer unit 32 mass % containing aromatic vinyl polymer (aromatic vinyl copolymer resin, manufactured by Denka Co., Ltd., product name: GR-AT-6S) 30 parts by mass, antistatic agent (manufactured by NOF Corporation, product name: New Elegan ASK) 0.5 parts by mass, hydrotalcite-based complex salt compound (manufactured by Nissan Chemical Industries, Ltd., product name: CP-410A) 3 parts by mass, epoxidized soybean oil (manufactured by Asahi Denka Kogyo Co., Ltd., product name: O-130P) and 0.8 parts by mass of an ester-based lubricant (manufactured by Riken Vitamin Co., Ltd., trade name: EW-100) were prepared. Using the resin composition, pellets were produced by compounding with an extruder having a diameter (aperture) of 40 mm at a cylinder temperature of 130 to 170°C. Next, using an extruder with a nozzle cross-sectional area of 0.06 mm 2 , a round shape, and 120 holes, a cylinder temperature of 140 to 190 ° C. and a nozzle temperature of 180 ° C., an extrusion rate of 10 kg / hour and a diameter of 30 mm. The pellets described above were melt spun. After that, heat treatment was performed for 1.0 second in a heating cylinder (250° C.) placed 4.5 m directly below the nozzle to obtain 150 decitex fiber A (unstretched fiber).
上述の繊維Ａのガラス転移温度（Ｔｇ）として、動的粘弾性測定における損失正接（ｔａｎδ）のピークトップ温度を測定した。具体的には、動的粘弾性測定装置（エスアイアイ・ナノテクノロジー社製、ＤＭＳ６１００）を用いて、昇温速度４℃／ｍｉｎ、周波数１Ｈｚ、チャック間距離３ｍｍで、４０本の繊維Ａの繊維束の２５～１７０℃の範囲における損失正接（ｔａｎδ）を測定し、ピークトップ温度を測定した。実施例１の繊維Ａのガラス転移温度は１２４℃であった。
As the glass transition temperature (Tg) of the fiber A described above, the peak top temperature of the loss tangent (tan δ) in the dynamic viscoelasticity measurement was measured. Specifically, using a dynamic viscoelasticity measuring device (DMS6100 manufactured by SII Nanotechnology Co., Ltd.), 40 fibers of fiber A were measured at a temperature increase rate of 4 ° C./min, a frequency of 1 Hz, and a distance between chucks of 3 mm. The loss tangent (tan δ) in the range of 25-170° C. of the bundle was measured and the peak top temperature was measured. The glass transition temperature of Fiber A of Example 1 was 124°C.
次に、繊維Ａを１００℃の空気雰囲気下で３倍に延伸することにより繊維Ｂを得た。
Next, fiber B was obtained by drawing fiber A three times in an air atmosphere at 100°C.
次に、空気雰囲気下、加熱温度（アニール温度）１１０℃で、繊維全長が処理前の０．７５倍に収縮するまで繊維Ｂを加熱処理することにより６０デシテックスの人工毛髪用繊維を得た。
Next, fiber B was heat-treated in an air atmosphere at a heating temperature (annealing temperature) of 110°C until the total length of the fiber was shrunk to 0.75 times that before treatment, thereby obtaining a 60 decitex artificial hair fiber.
（実施例２～１１及び比較例１～３）
塩化ビニル重合体の含有量、芳香族ビニル重合体の含有量、芳香族ビニル重合体における単量体単位の割合、及び、延伸処理後の加熱処理の加熱温度（アニール温度）を表１及び表２の数値へ変更したことを除き実施例１と同様に行うことにより６０デシテックスの人工毛髪用繊維を得た。実施例１とは異なる芳香族ビニル重合体としては、下記に示す芳香族ビニル重合体を用いた。繊維Ａのガラス転移温度の測定結果を表１及び表２に示す。 (Examples 2 to 11 and Comparative Examples 1 to 3)
The content of the vinyl chloride polymer, the content of the aromatic vinyl polymer, the ratio of the monomer units in the aromatic vinyl polymer, and the heating temperature (annealing temperature) of the heat treatment after the stretching treatment are shown in Table 1 and Table 1. An artificial hair fiber of 60 decitex was obtained in the same manner as in Example 1 except that the value was changed to 2. As the aromatic vinyl polymer different from that of Example 1, the following aromatic vinyl polymer was used. Tables 1 and 2 show the measurement results of the glass transition temperature of Fiber A.
塩化ビニル重合体の含有量、芳香族ビニル重合体の含有量、芳香族ビニル重合体における単量体単位の割合、及び、延伸処理後の加熱処理の加熱温度（アニール温度）を表１及び表２の数値へ変更したことを除き実施例１と同様に行うことにより６０デシテックスの人工毛髪用繊維を得た。実施例１とは異なる芳香族ビニル重合体としては、下記に示す芳香族ビニル重合体を用いた。繊維Ａのガラス転移温度の測定結果を表１及び表２に示す。 (Examples 2 to 11 and Comparative Examples 1 to 3)
The content of the vinyl chloride polymer, the content of the aromatic vinyl polymer, the ratio of the monomer units in the aromatic vinyl polymer, and the heating temperature (annealing temperature) of the heat treatment after the stretching treatment are shown in Table 1 and Table 1. An artificial hair fiber of 60 decitex was obtained in the same manner as in Example 1 except that the value was changed to 2. As the aromatic vinyl polymer different from that of Example 1, the following aromatic vinyl polymer was used. Tables 1 and 2 show the measurement results of the glass transition temperature of Fiber A.
スチレン単量体単位７０質量％及びアクリロニトリル単量体単位３０質量％を含む芳香族ビニル重合体（デンカ株式会社製、商品名：ＧＲ－ＡＴ－Ｒ）
スチレン単量体単位７５質量％及びアクリロニトリル単量体単位２５質量％を含む芳香族ビニル重合体（デンカ株式会社製、商品名：ＡＳ７００）
スチレン単量体単位８０質量％及びアクリロニトリル単量体単位２０質量％を含む芳香族ビニル重合体（デンカ株式会社製、商品名：ＡＳ－３）
スチレン単量体単位８２質量％及びアクリロニトリル単量体単位１８質量％を含む芳香族ビニル重合体（デンカ株式会社製、商品名：ＡＳ－Ｃ８００）
スチレン単量体単位８６質量％及びアクリロニトリル単量体単位１４質量％を含む芳香族ビニル重合体（自社調製品）
スチレン単量体単位９０質量％及びアクリロニトリル単量体単位１０質量％を含む芳香族ビニル重合体（自社調製品） Aromatic vinyl polymer containing 70% by mass of styrene monomer units and 30% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: GR-AT-R)
Aromatic vinyl polymer containing 75% by mass of styrene monomer units and 25% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: AS700)
Aromatic vinyl polymer containing 80% by mass of styrene monomer units and 20% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: AS-3)
Aromatic vinyl polymer containing 82% by mass of styrene monomer units and 18% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: AS-C800)
Aromatic vinyl polymer containing 86% by mass of styrene monomer units and 14% by mass of acrylonitrile monomer units (prepared in-house)
Aromatic vinyl polymer containing 90% by mass of styrene monomer units and 10% by mass of acrylonitrile monomer units (prepared in-house)
スチレン単量体単位７５質量％及びアクリロニトリル単量体単位２５質量％を含む芳香族ビニル重合体（デンカ株式会社製、商品名：ＡＳ７００）
スチレン単量体単位８０質量％及びアクリロニトリル単量体単位２０質量％を含む芳香族ビニル重合体（デンカ株式会社製、商品名：ＡＳ－３）
スチレン単量体単位８２質量％及びアクリロニトリル単量体単位１８質量％を含む芳香族ビニル重合体（デンカ株式会社製、商品名：ＡＳ－Ｃ８００）
スチレン単量体単位８６質量％及びアクリロニトリル単量体単位１４質量％を含む芳香族ビニル重合体（自社調製品）
スチレン単量体単位９０質量％及びアクリロニトリル単量体単位１０質量％を含む芳香族ビニル重合体（自社調製品） Aromatic vinyl polymer containing 70% by mass of styrene monomer units and 30% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: GR-AT-R)
Aromatic vinyl polymer containing 75% by mass of styrene monomer units and 25% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: AS700)
Aromatic vinyl polymer containing 80% by mass of styrene monomer units and 20% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: AS-3)
Aromatic vinyl polymer containing 82% by mass of styrene monomer units and 18% by mass of acrylonitrile monomer units (manufactured by Denka Co., Ltd., trade name: AS-C800)
Aromatic vinyl polymer containing 86% by mass of styrene monomer units and 14% by mass of acrylonitrile monomer units (prepared in-house)
Aromatic vinyl polymer containing 90% by mass of styrene monomer units and 10% by mass of acrylonitrile monomer units (prepared in-house)
＜人工毛髪用繊維の熱収縮率＞
まず、上述の人工毛髪用繊維を長さ１００ｍｍに切断することにより繊維片を得た。次に、１００℃に設定したオーブンにおいて繊維片を１０分加熱した後、繊維片の長さを測定した。下記式に従って熱収縮率を求めた。表１及び表２に結果を示す。
熱収縮率（％）＝｛［（加熱前の長さ）－（加熱後の長さ）］／（加熱前の長さ）｝×１００ <Heat shrinkage rate of fiber for artificial hair>
First, a piece of fiber was obtained by cutting the artificial hair fiber to a length of 100 mm. Next, the fiber piece was heated in an oven set at 100° C. for 10 minutes, and then the length of the fiber piece was measured. The thermal shrinkage rate was obtained according to the following formula. Tables 1 and 2 show the results.
Thermal shrinkage rate (%) = {[(length before heating) - (length after heating)] / (length before heating)} x 100
まず、上述の人工毛髪用繊維を長さ１００ｍｍに切断することにより繊維片を得た。次に、１００℃に設定したオーブンにおいて繊維片を１０分加熱した後、繊維片の長さを測定した。下記式に従って熱収縮率を求めた。表１及び表２に結果を示す。
熱収縮率（％）＝｛［（加熱前の長さ）－（加熱後の長さ）］／（加熱前の長さ）｝×１００ <Heat shrinkage rate of fiber for artificial hair>
First, a piece of fiber was obtained by cutting the artificial hair fiber to a length of 100 mm. Next, the fiber piece was heated in an oven set at 100° C. for 10 minutes, and then the length of the fiber piece was measured. The thermal shrinkage rate was obtained according to the following formula. Tables 1 and 2 show the results.
Thermal shrinkage rate (%) = {[(length before heating) - (length after heating)] / (length before heating)} x 100
＜評価＞
上述の人工毛髪用繊維について、下記の評価方法及び基準に従って紡糸性、ボリューム感及び櫛通り性（櫛通り抵抗力）を評価した。表１及び表２に結果を示す。実施例では、全ての評価項目において良好な結果が得られることが確認される。 <Evaluation>
Spinnability, voluminousness and combability (combing resistance) of the artificial hair fibers were evaluated according to the following evaluation methods and criteria. Tables 1 and 2 show the results. In Examples, it was confirmed that good results were obtained in all evaluation items.
上述の人工毛髪用繊維について、下記の評価方法及び基準に従って紡糸性、ボリューム感及び櫛通り性（櫛通り抵抗力）を評価した。表１及び表２に結果を示す。実施例では、全ての評価項目において良好な結果が得られることが確認される。 <Evaluation>
Spinnability, voluminousness and combability (combing resistance) of the artificial hair fibers were evaluated according to the following evaluation methods and criteria. Tables 1 and 2 show the results. In Examples, it was confirmed that good results were obtained in all evaluation items.
（紡糸性）
紡糸性として、上述の人工毛髪用繊維の作製において溶融紡糸して繊維Ａ（未延伸繊維）ができる間の１時間あたりの糸切れの発生状況を目視観察した。紡糸性は下記の基準で評価した。
Ａ：糸切れが１回
Ｂ：糸切れが２～３回
Ｃ：糸切れが４回以上 (spinnability)
As the spinnability, the state of occurrence of yarn breakage per hour during the production of the fiber A (undrawn fiber) by melt spinning in the production of the artificial hair fiber was visually observed. Spinnability was evaluated according to the following criteria.
A: Thread breakage once B: Thread breakage 2-3 times C: Thread breakage 4 times or more
紡糸性として、上述の人工毛髪用繊維の作製において溶融紡糸して繊維Ａ（未延伸繊維）ができる間の１時間あたりの糸切れの発生状況を目視観察した。紡糸性は下記の基準で評価した。
Ａ：糸切れが１回
Ｂ：糸切れが２～３回
Ｃ：糸切れが４回以上 (spinnability)
As the spinnability, the state of occurrence of yarn breakage per hour during the production of the fiber A (undrawn fiber) by melt spinning in the production of the artificial hair fiber was visually observed. Spinnability was evaluated according to the following criteria.
A: Thread breakage once B: Thread breakage 2-3 times C: Thread breakage 4 times or more
（ボリューム感）
ボリューム感は、次の手順で評価した。まず、上述の人工毛髪用繊維の繊維束（本数：１２０００本、長さ：１０ｍ、質量：８００ｇ）をギア加工処理（繊維の長さ方向の処理、ギア波形の溝の深さ：２．５ｍｍ、ギアピッチ：２．５ｍｍ、表面温度：９０℃、加工速度：１．０ｍ／ｍｉｎ）することにより評価用繊維を得た後、この評価用繊維を長さ１００ｍｍに切断することにより繊維片を得た。次に、５６ｃｃの容器（１００ｍｍ×１４ｍｍ×４０ｍｍ）が一杯になるまで繊維片を容器に充填した。充填した繊維片を取り出した後に繊維片の質量を計量した。そして、式「容器の容積（ｃｃ）／繊維片の質量（ｇ）＝比容積（ｃｃ／ｇ）」より比容積を算出した。比容積の値は、小数第２位を四捨五入して算出した。比容積が７．０ｃｃ／ｇを超える場合を良好であると判断した。 (Volume feeling)
The voluminousness was evaluated by the following procedure. First, a fiber bundle of the above artificial hair fibers (number: 12,000, length: 10 m, mass: 800 g) was subjected to gear processing (processing in the length direction of the fibers, groove depth of the gear waveform: 2.5 mm). , gear pitch: 2.5 mm, surface temperature: 90 ° C., processing speed: 1.0 m / min) to obtain a fiber for evaluation, and then cut this evaluation fiber to a length of 100 mm to obtain a fiber piece. rice field. The 56 cc container (100 mm x 14 mm x 40 mm) was then filled with fiber pieces until it was full. After removing the filled piece of fiber, the mass of the piece of fiber was weighed. Then, the specific volume was calculated from the formula "container volume (cc)/fiber piece mass (g)=specific volume (cc/g)". The value of specific volume was calculated by rounding off to the second decimal place. A specific volume exceeding 7.0 cc/g was judged to be good.
ボリューム感は、次の手順で評価した。まず、上述の人工毛髪用繊維の繊維束（本数：１２０００本、長さ：１０ｍ、質量：８００ｇ）をギア加工処理（繊維の長さ方向の処理、ギア波形の溝の深さ：２．５ｍｍ、ギアピッチ：２．５ｍｍ、表面温度：９０℃、加工速度：１．０ｍ／ｍｉｎ）することにより評価用繊維を得た後、この評価用繊維を長さ１００ｍｍに切断することにより繊維片を得た。次に、５６ｃｃの容器（１００ｍｍ×１４ｍｍ×４０ｍｍ）が一杯になるまで繊維片を容器に充填した。充填した繊維片を取り出した後に繊維片の質量を計量した。そして、式「容器の容積（ｃｃ）／繊維片の質量（ｇ）＝比容積（ｃｃ／ｇ）」より比容積を算出した。比容積の値は、小数第２位を四捨五入して算出した。比容積が７．０ｃｃ／ｇを超える場合を良好であると判断した。 (Volume feeling)
The voluminousness was evaluated by the following procedure. First, a fiber bundle of the above artificial hair fibers (number: 12,000, length: 10 m, mass: 800 g) was subjected to gear processing (processing in the length direction of the fibers, groove depth of the gear waveform: 2.5 mm). , gear pitch: 2.5 mm, surface temperature: 90 ° C., processing speed: 1.0 m / min) to obtain a fiber for evaluation, and then cut this evaluation fiber to a length of 100 mm to obtain a fiber piece. rice field. The 56 cc container (100 mm x 14 mm x 40 mm) was then filled with fiber pieces until it was full. After removing the filled piece of fiber, the mass of the piece of fiber was weighed. Then, the specific volume was calculated from the formula "container volume (cc)/fiber piece mass (g)=specific volume (cc/g)". The value of specific volume was calculated by rounding off to the second decimal place. A specific volume exceeding 7.0 cc/g was judged to be good.
（櫛通り性）
櫛通り性は、次の手順で評価した。まず、上述の人工毛髪用繊維の繊維束（本数：１２０００本、長さ：１０ｍ、質量：８００ｇ）をギア加工処理（繊維の長さ方向の処理、ギア波形の溝の深さ：２．５ｍｍ、ギアピッチ：２．５ｍｍ、表面温度：９０℃、加工速度：１．０ｍ／ｍｉｎ）することにより評価用繊維の繊維束を得た。この繊維束を長さ３０ｃｍ、質量２０ｇに調整した後、移動速度１０ｍｍ／ｓｅｃ、移動距離１００ｍｍで櫛通りさせたときの抵抗力［単位：ｇｆ］を静・動摩擦測定機（ＴＲＩＮＩＴＹ－ＬＡＢ社製、商品名「ＴＬ２０１Ｔｔ」）で測定した。抵抗力が小さいほど櫛通り性が良好であると判断した。 (combability)
The combability was evaluated by the following procedure. First, a fiber bundle of the above artificial hair fibers (number: 12,000, length: 10 m, mass: 800 g) was subjected to gear processing (processing in the length direction of the fibers, groove depth of the gear waveform: 2.5 mm). , gear pitch: 2.5 mm, surface temperature: 90°C, processing speed: 1.0 m/min) to obtain a fiber bundle of fibers for evaluation. After adjusting this fiber bundle to a length of 30 cm and a mass of 20 g, the resistance force [unit: gf] when combed at a moving speed of 10 mm / sec and a moving distance of 100 mm was measured with a static and dynamic friction measuring device (manufactured by TRINITY-LAB) , trade name “TL201Tt”). It was judged that the smaller the resistance, the better the combability.
櫛通り性は、次の手順で評価した。まず、上述の人工毛髪用繊維の繊維束（本数：１２０００本、長さ：１０ｍ、質量：８００ｇ）をギア加工処理（繊維の長さ方向の処理、ギア波形の溝の深さ：２．５ｍｍ、ギアピッチ：２．５ｍｍ、表面温度：９０℃、加工速度：１．０ｍ／ｍｉｎ）することにより評価用繊維の繊維束を得た。この繊維束を長さ３０ｃｍ、質量２０ｇに調整した後、移動速度１０ｍｍ／ｓｅｃ、移動距離１００ｍｍで櫛通りさせたときの抵抗力［単位：ｇｆ］を静・動摩擦測定機（ＴＲＩＮＩＴＹ－ＬＡＢ社製、商品名「ＴＬ２０１Ｔｔ」）で測定した。抵抗力が小さいほど櫛通り性が良好であると判断した。 (combability)
The combability was evaluated by the following procedure. First, a fiber bundle of the above artificial hair fibers (number: 12,000, length: 10 m, mass: 800 g) was subjected to gear processing (processing in the length direction of the fibers, groove depth of the gear waveform: 2.5 mm). , gear pitch: 2.5 mm, surface temperature: 90°C, processing speed: 1.0 m/min) to obtain a fiber bundle of fibers for evaluation. After adjusting this fiber bundle to a length of 30 cm and a mass of 20 g, the resistance force [unit: gf] when combed at a moving speed of 10 mm / sec and a moving distance of 100 mm was measured with a static and dynamic friction measuring device (manufactured by TRINITY-LAB) , trade name “TL201Tt”). It was judged that the smaller the resistance, the better the combability.
Claims (9)
- 塩化ビニル重合体と、芳香族ビニル重合体と、を含有し、
１００℃における熱収縮率が７％以上である、人工毛髪用繊維。 containing a vinyl chloride polymer and an aromatic vinyl polymer,
An artificial hair fiber having a thermal shrinkage of 7% or more at 100°C. - 前記熱収縮率が７～２５％である、請求項１に記載の人工毛髪用繊維。 The fiber for artificial hair according to claim 1, wherein the heat shrinkage rate is 7 to 25%.
- 前記塩化ビニル重合体の含有量が６０～９５質量％であり、
前記芳香族ビニル重合体の含有量が５～４０質量％である、請求項１に記載の人工毛髪用繊維。 The content of the vinyl chloride polymer is 60 to 95% by mass,
The artificial hair fiber according to claim 1, wherein the content of the aromatic vinyl polymer is 5 to 40% by mass. - 前記芳香族ビニル重合体が、スチレン系化合物及び（メタ）アクリロニトリルを単量体単位として有する、請求項１に記載の人工毛髪用繊維。 The artificial hair fiber according to claim 1, wherein the aromatic vinyl polymer has a styrene compound and (meth)acrylonitrile as monomer units.
- 前記スチレン系化合物がスチレンを含む、請求項４に記載の人工毛髪用繊維。 The artificial hair fiber according to claim 4, wherein the styrenic compound contains styrene.
- 前記芳香族ビニル重合体の全体を基準として、前記スチレン系化合物の単量体単位の割合が７４～８８質量％であり、前記（メタ）アクリロニトリルの単量体単位の割合が１２～２６質量％である、請求項４に記載の人工毛髪用繊維。 Based on the entire aromatic vinyl polymer, the ratio of the monomer unit of the styrene compound is 74 to 88% by mass, and the ratio of the monomer unit of the (meth)acrylonitrile is 12 to 26% by mass. The artificial hair fiber according to claim 4, wherein
- 請求項１～６のいずれか一項に記載の人工毛髪用繊維を備える、人工毛髪用繊維束。 A fiber bundle for artificial hair comprising the fiber for artificial hair according to any one of claims 1 to 6.
- 前記人工毛髪用繊維とは異なる繊維を更に備える、請求項７に記載の人工毛髪用繊維束。 The fiber bundle for artificial hair according to claim 7, further comprising fibers different from the fibers for artificial hair.
- 請求項７に記載の人工毛髪用繊維束を備える、頭髪装飾製品。
A hair decoration product comprising the artificial hair fiber bundle according to claim 7.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202280046025.8A CN117580981A (en) | 2021-08-20 | 2022-07-11 | Fiber for artificial hair, fiber bundle for artificial hair, and hair decorative article |
| KR1020247001110A KR20240021259A (en) | 2021-08-20 | 2022-07-11 | Fibers for artificial hair, fiber bundles for artificial hair and hair decoration products |
| JP2023542261A JPWO2023021883A1 (en) | 2021-08-20 | 2022-07-11 |
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| JP (1) | JPWO2023021883A1 (en) |
| KR (1) | KR20240021259A (en) |
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| WO (1) | WO2023021883A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030060464A (en) * | 2002-01-09 | 2003-07-16 | (주)우노파이버 | Synthetic Hair Comprising Polyvinylchloride and Method of Preparing the Same |
| WO2006038447A1 (en) * | 2004-10-01 | 2006-04-13 | Denki Kagaku Kogyo Kabushiki Kaisha | Vinyl chloride resin composition, vinyl chloride fiber, process for producing the same, and fiber for artificial hair |
| JP2007107137A (en) * | 2005-10-14 | 2007-04-26 | Denki Kagaku Kogyo Kk | Polyvinyl chloride-based fiber, method for producing the same, and fiber for artificial hair comprising the same |
| JP2012177208A (en) * | 2011-02-25 | 2012-09-13 | Denki Kagaku Kogyo Kk | Fiber for artificial hair and hair ornament |
| JP2021088777A (en) * | 2018-03-20 | 2021-06-10 | デンカ株式会社 | Artificial hair fiber and hair decorative product |
-
2022
- 2022-07-11 WO PCT/JP2022/027264 patent/WO2023021883A1/en active Application Filing
- 2022-07-11 JP JP2023542261A patent/JPWO2023021883A1/ja active Pending
- 2022-07-11 KR KR1020247001110A patent/KR20240021259A/en unknown
- 2022-07-11 CN CN202280046025.8A patent/CN117580981A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030060464A (en) * | 2002-01-09 | 2003-07-16 | (주)우노파이버 | Synthetic Hair Comprising Polyvinylchloride and Method of Preparing the Same |
| WO2006038447A1 (en) * | 2004-10-01 | 2006-04-13 | Denki Kagaku Kogyo Kabushiki Kaisha | Vinyl chloride resin composition, vinyl chloride fiber, process for producing the same, and fiber for artificial hair |
| JP2007107137A (en) * | 2005-10-14 | 2007-04-26 | Denki Kagaku Kogyo Kk | Polyvinyl chloride-based fiber, method for producing the same, and fiber for artificial hair comprising the same |
| JP2012177208A (en) * | 2011-02-25 | 2012-09-13 | Denki Kagaku Kogyo Kk | Fiber for artificial hair and hair ornament |
| JP2021088777A (en) * | 2018-03-20 | 2021-06-10 | デンカ株式会社 | Artificial hair fiber and hair decorative product |
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| Publication number | Publication date |
|---|---|
| CN117580981A (en) | 2024-02-20 |
| KR20240021259A (en) | 2024-02-16 |
| JPWO2023021883A1 (en) | 2023-02-23 |
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