JPWO2005004652A1 - Artificial hair and method for producing the same - Google Patents
Artificial hair and method for producing the same Download PDFInfo
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- JPWO2005004652A1 JPWO2005004652A1 JP2005511493A JP2005511493A JPWO2005004652A1 JP WO2005004652 A1 JPWO2005004652 A1 JP WO2005004652A1 JP 2005511493 A JP2005511493 A JP 2005511493A JP 2005511493 A JP2005511493 A JP 2005511493A JP WO2005004652 A1 JPWO2005004652 A1 JP WO2005004652A1
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- monofilament
- polytrimethylene terephthalate
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- 238000004519 manufacturing process Methods 0.000 title claims description 6
- -1 polytrimethylene terephthalate Polymers 0.000 claims abstract description 30
- 229920002215 polytrimethylene terephthalate Polymers 0.000 claims abstract description 23
- 230000009477 glass transition Effects 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 229920000642 polymer Polymers 0.000 claims description 14
- 238000009987 spinning Methods 0.000 claims description 13
- 238000002074 melt spinning Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 abstract description 9
- 238000011084 recovery Methods 0.000 abstract description 8
- 229920000728 polyester Polymers 0.000 abstract description 3
- 229920002972 Acrylic fiber Polymers 0.000 abstract description 2
- 239000004952 Polyamide Substances 0.000 abstract description 2
- 230000000704 physical effect Effects 0.000 abstract description 2
- 229920002647 polyamide Polymers 0.000 abstract description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000001771 impaired effect Effects 0.000 description 5
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 1
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 1
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- ORLQHILJRHBSAY-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1(CO)CCCCC1 ORLQHILJRHBSAY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000003484 crystal nucleating agent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
- A41G3/00—Wigs
- A41G3/0083—Filaments for making wigs
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
- A41G3/00—Wigs
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- 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
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Artificial Filaments (AREA)
- Materials For Medical Uses (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
ポリアミド繊維、ポリエステル繊維、アクリル繊維等よりなる人工毛髪に比較して、外観、質ともに天然ヒト毛髪に近い風合いを有し、経時的にその風合いを維持する人工毛髪に関するものであり、ポリトリメチレンテレフタレートを含むモノフィラメントからなる人工毛髪により、更には、繊度が２２〜３３３デシテックス、融点２２５〜２３５℃、ガラス転移点温度が４５〜８０℃である、ポリトリメチレンテレフタレートを含むモノフィラメントからなる人工毛髪により、物性としての弾性回復率、強度、伸度、風合いが天然ヒト毛髪と類似し、縮れや光沢の発生を抑制することができる。Compared to artificial hair made of polyamide fiber, polyester fiber, acrylic fiber, etc., it has an appearance and quality that is close to that of natural human hair and relates to artificial hair that maintains its texture over time. By artificial hair made of monofilament containing terephthalate, and further by artificial hair made of monofilament containing polytrimethylene terephthalate having a fineness of 22 to 333 dtex, a melting point of 225 to 235 ° C., and a glass transition temperature of 45 to 80 ° C. The elastic recovery rate, strength, elongation, and texture as physical properties are similar to natural human hair, and curling and gloss generation can be suppressed.
Description
本発明は、外観、質ともに天然ヒト毛髪に近い風合いを有し、経時的にその風合いを維持する人工毛髪に関する。 The present invention relates to artificial hair that has a texture close to that of natural human hair in appearance and quality, and that maintains that texture over time.
従来、かつらや付け毛等に用いる人工毛髪は、ポリエステル、アクリル、塩化ビニル、ナイロン等の合成繊維素材が使用されている。例えば、ポリエチレンテレフタレートとポリブチレンテレフタレートを混合することで風合いを改善することが試みられている（特開２００２−１６１４２３号公報）。更には、例えば、人工毛髪の風合い、三つ編み等の手作業時の扱い易さを改良すべく、ポリエチレンテレフタレートを偏平に紡糸し、人工毛髪用繊維及び繊維束としている（特開平０９−１３２８１３号公報）。
上記のような、人工毛髪素材を使用したかつらを着用して日常生活をしていると、毛髪としては不自然な、合成繊維素材特有の縮れや光沢が発生する。その結果、人工毛髪の代替としての風合い等で表現される自然感が損なわれ、かつらとしての価値が損なわれる現象が発生する。Conventionally, synthetic fiber materials such as polyester, acrylic, vinyl chloride, and nylon have been used for artificial hair used for wigs, artificial hair, and the like. For example, attempts have been made to improve the texture by mixing polyethylene terephthalate and polybutylene terephthalate (Japanese Patent Laid-Open No. 2002-161423). Furthermore, for example, polyethylene terephthalate is spun flat to improve the texture of artificial hair and the ease of handling during manual work such as braids, thereby forming fibers and fiber bundles for artificial hair (Japanese Patent Laid-Open No. 09-132913). Issue gazette).
When wearing a wig using an artificial hair material as described above and living in daily life, the synthetic fiber material has frizziness and gloss that are unnatural for hair. As a result, the natural feeling expressed by the texture as a substitute for artificial hair is impaired, and the phenomenon that the value as a wig is impaired occurs.
本発明者らは、ポリトリメチレンテレフタレートをモノフィラメントに使用することで、上述の課題を克服した。
すなわち、本発明の課題は、
（１）ポリトリメチレンテレフタレートを含むモノフィラメントからなる人工毛髪、
（２）モノフィラメントの繊度が２２〜３３３デシテックス、融点２２５〜２３５℃、ガラス転移点温度が４５〜８０℃である（１）記載の人工毛髪、あるいは、
（３）ポリトリメチレンテレフタレートを含むポリマーから人工毛髪のモノフィラメントを製造するに際し、ポリトリメチレンテレフタレートを含むポリマーを溶融紡糸する紡糸温度が２４０〜３２０℃であることを特徴とする人工毛髪の製造方法、
（４）モノフィラメント延伸時の延伸倍率が２．０〜４．０倍であることを特徴とする（３）記載の人工毛髪の製造方法、
（５）モノフィラメント延伸の際の温度が、延伸ゾーンでは３５〜１００℃であることを特徴とする請求項４記載の人工毛髪の製造方法
により達成される。
本発明の人工毛髪は、物性としての弾性回復率、強度、伸度、風合いが天然ヒト毛髪と類似しており、また、弾性回復率が高いことにより、縮れや折りシワによる光沢の発生を抑制することができるのである。The present inventors have overcome the above-mentioned problems by using polytrimethylene terephthalate as a monofilament.
That is, the subject of the present invention is
(1) artificial hair made of monofilament containing polytrimethylene terephthalate,
(2) The artificial hair according to (1), wherein the fineness of the monofilament is 22 to 333 dtex, the melting point is 225 to 235 ° C, and the glass transition temperature is 45 to 80 ° C, or
(3) When producing a monofilament of artificial hair from a polymer containing polytrimethylene terephthalate, a spinning temperature for melt spinning the polymer containing polytrimethylene terephthalate is 240 to 320 ° C. ,
(4) The method for producing artificial hair according to (3), wherein the stretch ratio during monofilament stretching is 2.0 to 4.0 times,
(5) The temperature during monofilament drawing is 35 to 100 ° C. in the drawing zone, and is achieved by the method for producing artificial hair according to claim 4.
The artificial hair of the present invention is similar to natural human hair in the elastic recovery rate, strength, elongation, and texture as physical properties, and the high elastic recovery rate suppresses the occurrence of gloss due to curling and wrinkles. It can be done.
本発明に含まれるポリトリメチレンテレフタレートは、ポリトリメチレンテレフタレート単独であっても、以下に示すポリトリメチレンテレフタレートの共重合物であってもよい。すなわち、ポリトリメチレンテレフタレートとの共重合物質は、本発明の効果を損なわない範囲で、イソフタル酸、コハク酸、アジピン酸、２，６−ナフタレンジカルボン酸等の酸成分や、１，４−ブタンジオール、１，６−ヘキサンジオール、シクロヘキサンジメタノール等のグリコール成分、ε−カプロラクトン、４−ヒドロキシ安息香酸、ポリオキシエチレングリコール、ポリテトラメチレングリコール等が共重合されていてもよく、その量が１０ｗｔ％未満共重合されていてもよい。
また、必要に応じて、各種の添加剤、例えば、艶消し剤、熱安定剤、消泡剤、整色剤、難燃剤、酸化防止剤、紫外線吸収剤、赤外線吸収剤、結晶核剤、蛍光増白剤などを共重合、または混合してもよい。
本発明のポリトリメチレンテレフタレートを含む人工毛髪のモノフィラメントを構成するポリマーは、公知の方法を用いて重合することができる。例えば、テレフタル酸またはテレフタル酸の低級アルコールエステルと過剰の１，３−プロパンジオールをテトラブチルチタネート等の触媒存在下、エステル交換反応させ、次いで、得られた反応物にテトラブチルチタネート等の触媒を加えて、０．５ｔｏｒｒ以下の真空下、２４０〜２８０℃で重縮合反応を行うことにより、当該ポリマーを得ることができる。更に、得られたポリマーより常法の紡糸方法でモノフィラメントを製造することができる。
本発明のポリトリメチレンテレフタレートを含む人工毛髪のモノフィラメントを構成するポリマーの分子量は、実施例に記載された方法で測定された極限粘度によって規定できる。極限粘度［η］は、通常０．４〜２．０、好ましくは０．５〜１．５、更に好ましくは０．６〜１．２である。極限粘度が０．４以上の場合は、ポリマーの溶融粘度が高いため、紡糸性が安定となる。また得られるモノフィラメントの強度も高く満足できるものとなる。逆に極限粘度が２．０以下の場合は、溶融粘度が高すぎないために、ギアポンプでの計量がスムーズに行われ、吐出不良等で紡糸性は低下することがない。
本発明のポリトリメチレンテレフタレートを含む人工毛髪のモノフィラメントは、単糸繊度が２２〜３３３デシテックス（ｄｔｅｘ）であることが好ましい。更には４０〜２５０ｄｔｅｘであること、更には５０〜２００ｄｔｅｘであることが、天然ヒト毛髪に近い外観、感触を得ることができる。
本発明のポリトリメチレンテレフタレートを含む人工毛髪のモノフィラメントは、融点が２２５〜２３５℃、より好ましくは２２８〜２３２℃であることが好適である。紡糸温度に対して、融点の温度領域が狭いほど、加工特性が向上するためである。
本発明のポリトリメチレンテレフタレートを含む人工毛髪のモノフィラメントは、ガラス転移点温度（以下、Ｔｇと略記する）が４５〜８０℃であることが好適である。Ｔｇは非晶部分の分子密度に対応するので、この値が小さくなるほど非晶部分の分子密度が小さくなるために分子が動きやすくなる。Ｔｇが８０℃を越えないと、繊維の剛性が高くならず毛髪としてのセットができる。Ｔｇが４５℃以上であると毛髪としての風合いが損なわれない。毛髪としてのバランスがよいという観点から、Ｔｇは、好ましくは４５〜７０℃、更に好ましくは５５〜６５℃である。
このようにＴｇは繊維の構造因子であるために、同じ分子構造を持つポリマーであっても、紡糸温度、紡糸速度、延伸倍率、延伸の際の温度等の紡糸条件によって異なる値を示すものである。
本発明のポリトリメチレンテレフタレートを含む人工毛髪のモノフィラメントの単糸断面は特に制限はなく、丸、三角、四角、五角、あるいは、扁平糸等が挙げられる。
本発明のポリトリメチレンテレフタレートを含む人工毛髪のモノフィラメントは、公知の方法で製造することができる。すなわち、例えば、ノズルから押し出されたポリマーが水冷によって冷却固化した後、一定の速度で回転している第一ロールに数回以上巻き付けられることにより、ロール前後での張力が全く伝わらないようにし、第一ロールと第一ロールの次に設置してある第二ロールとの間で延伸を行い、その後ワインダーで巻き取る方法で製造できる。
モノフィラメントにおいてポリマーを溶融紡糸する際の紡糸温度は２４０〜３２０℃、好ましくは２４５〜３００℃、更に好ましくは２５０〜２８０℃が適当である。紡糸温度が２４０℃以上では、安定した流動性が得られ、紡糸性が損なわれず、また満足し得る強度を示す。紡糸温度が３２０℃以下では、熱分解が激しくならず、得られた糸は着色することなく、また満足し得る強度を示す。
糸の巻き取り速度については、通常１５００ｍ／ｍｉｎ以下、好ましくは５００ｍ／ｍｉｎ以下、更に好ましくは４００ｍ／ｍｉｎ以下で巻き取る。巻取速度が１５００ｍ／ｍｉｎ以下であると、冷却が容易となる。
また、延伸時の延伸倍率は２．０〜４．０倍、好ましくは２．２〜３．７倍、更に好ましくは、２．５〜３．５倍がよい。延伸倍率が２．０倍以上では、延伸により十分にポリマーを配向させることができ、得られた糸の強度は低いものとなりにくい。また４．０倍以下では糸切れが抑えられ、安定して延伸を行うことができる。
延伸の際の温度は、延伸ゾーンでは３５〜１００℃、好ましくは４０〜１００℃、更に好ましくは５０〜１００℃がよい。延伸ゾーンの温度が３５℃以上では延伸の際に糸切れが少なく、連続してモノフィラメントを得ることができる。また１００℃以下であると延伸ロールなどの加熱ゾーン対する繊維の滑り性が悪化することなく、糸切れが少ない。また必要に応じて、１２０〜１８０℃の熱セットを行ってもよい。
また、上記のような紡糸条件により、本発明において好適な範囲のガラス転移点温度を有するモノフィラメントが得られる。The polytrimethylene terephthalate included in the present invention may be polytrimethylene terephthalate alone or a copolymer of polytrimethylene terephthalate shown below. That is, the copolymerized material with polytrimethylene terephthalate is an acid component such as isophthalic acid, succinic acid, adipic acid, 2,6-naphthalenedicarboxylic acid, and 1,4-butane as long as the effects of the present invention are not impaired. A glycol component such as diol, 1,6-hexanediol, cyclohexanedimethanol, ε-caprolactone, 4-hydroxybenzoic acid, polyoxyethylene glycol, polytetramethylene glycol, or the like may be copolymerized, and the amount is 10 wt. % May be copolymerized.
If necessary, various additives such as matting agents, heat stabilizers, antifoaming agents, color modifiers, flame retardants, antioxidants, ultraviolet absorbers, infrared absorbers, crystal nucleating agents, fluorescent agents A brightener or the like may be copolymerized or mixed.
The polymer constituting the monofilament of artificial hair containing the polytrimethylene terephthalate of the present invention can be polymerized using a known method. For example, terephthalic acid or a lower alcohol ester of terephthalic acid and excess 1,3-propanediol are subjected to a transesterification reaction in the presence of a catalyst such as tetrabutyl titanate, and then a catalyst such as tetrabutyl titanate is added to the resulting reaction product. In addition, the polymer can be obtained by performing a polycondensation reaction at 240 to 280 ° C. under a vacuum of 0.5 torr or less. Furthermore, a monofilament can be produced from the obtained polymer by a conventional spinning method.
The molecular weight of the polymer constituting the monofilament of artificial hair containing the polytrimethylene terephthalate of the present invention can be defined by the intrinsic viscosity measured by the method described in the examples. The intrinsic viscosity [η] is usually 0.4 to 2.0, preferably 0.5 to 1.5, and more preferably 0.6 to 1.2. When the intrinsic viscosity is 0.4 or more, the melt viscosity of the polymer is high, and the spinnability becomes stable. Moreover, the strength of the monofilament obtained is high and satisfactory. On the other hand, when the intrinsic viscosity is 2.0 or less, the melt viscosity is not too high, and therefore the gear pump is smoothly metered, and the spinnability does not decrease due to defective discharge or the like.
The monofilament of artificial hair containing the polytrimethylene terephthalate of the present invention preferably has a single yarn fineness of 22 to 333 dtex. Furthermore, it is 40-250 dtex, Furthermore, it is 50-200 dtex, and the external appearance and feel close | similar to natural human hair can be acquired.
The monofilament of artificial hair containing the polytrimethylene terephthalate of the present invention has a melting point of 225 to 235 ° C, more preferably 228 to 232 ° C. This is because the processing characteristics improve as the temperature range of the melting point is narrower than the spinning temperature.
The monofilament of artificial hair containing the polytrimethylene terephthalate of the present invention preferably has a glass transition temperature (hereinafter abbreviated as Tg) of 45 to 80 ° C. Since Tg corresponds to the molecular density of the amorphous part, the smaller the value, the smaller the molecular density of the amorphous part, and the easier the molecule moves. If Tg does not exceed 80 ° C., the fiber does not have high rigidity and can be set as hair. When the Tg is 45 ° C. or higher, the texture as hair is not impaired. From the viewpoint of good balance as hair, Tg is preferably 45 to 70 ° C, more preferably 55 to 65 ° C.
As described above, Tg is a fiber structure factor, so even a polymer having the same molecular structure shows different values depending on spinning conditions such as spinning temperature, spinning speed, draw ratio, and temperature during drawing. is there.
The monofilament cross section of the monofilament of the artificial hair containing the polytrimethylene terephthalate of the present invention is not particularly limited, and examples thereof include round, triangular, square, pentagonal, flat yarn and the like.
The monofilament of artificial hair containing the polytrimethylene terephthalate of the present invention can be produced by a known method. That is, for example, after the polymer extruded from the nozzle is cooled and solidified by water cooling, it is wound several times on the first roll rotating at a constant speed so that the tension before and after the roll is not transmitted at all. It can be manufactured by stretching between a first roll and a second roll installed next to the first roll and then winding it with a winder.
The spinning temperature for melt spinning the polymer in the monofilament is 240 to 320 ° C, preferably 245 to 300 ° C, more preferably 250 to 280 ° C. When the spinning temperature is 240 ° C. or higher, a stable fluidity is obtained, the spinnability is not impaired, and a satisfactory strength is exhibited. When the spinning temperature is 320 ° C. or lower, thermal decomposition does not become severe, and the obtained yarn is not colored and exhibits satisfactory strength.
The yarn winding speed is usually 1500 m / min or less, preferably 500 m / min or less, and more preferably 400 m / min or less. Cooling becomes easy when the winding speed is 1500 m / min or less.
Moreover, the draw ratio at the time of extending | stretching is 2.0 to 4.0 times, Preferably it is 2.2 to 3.7 times, More preferably, 2.5 to 3.5 times is good. When the draw ratio is 2.0 times or more, the polymer can be sufficiently oriented by drawing, and the strength of the obtained yarn is unlikely to be low. Further, if it is 4.0 times or less, yarn breakage is suppressed, and stretching can be performed stably.
The temperature during stretching is 35 to 100 ° C., preferably 40 to 100 ° C., more preferably 50 to 100 ° C. in the stretching zone. When the temperature of the stretching zone is 35 ° C. or higher, there are few yarn breaks during stretching, and monofilaments can be obtained continuously. Further, when the temperature is 100 ° C. or lower, the fiber slipping property with respect to the heating zone such as a drawing roll is not deteriorated, and the yarn breakage is small. Moreover, you may perform the heat setting of 120-180 degreeC as needed.
In addition, a monofilament having a glass transition temperature within a preferable range in the present invention can be obtained by the spinning conditions as described above.
以下、実施例を挙げて本発明をより具体的に説明するが、言うまでもなく実施例のみに本発明は限定されるものでない。尚、実施例中の主な測定値は以下の方法で測定した。
（１）極限粘度
オルト−クロロフェノールを溶媒として、ポリマー濃度１．０％、３５℃にてオストワルドの粘度計による測定法で測定した。
（２）ガラス転移点
セイコーインスツルメンツ製熱分析装置（ＥＸＳＴＡＲ６０００）を用い、乾燥窒素中、昇温速度２０℃／分にて測定した。
（３）弾性回復率
試料長１００センチメートルに２００グラムの重りを２４時間吊るしたのちに開放して、１時間後の試料長を測定した。
この方法による天然ヒト毛髪の弾性回復率は、８５％であった。
（４）風合いの比較
目視で人工毛髪と天然ヒト毛髪との風合いを比較した。
◎：非常に天然ヒト毛髪に近い風合い
○：天然ヒト毛髪に近い風合い
△：天然ヒト毛髪でないことがわかる
×：明らかに天然ヒト毛髪でないことがわかる
［実施例１〜３］
ポリトリメチレンテレフタレート（極限粘度０．８５）を使用して紡糸温度２７０℃で溶融押し出しを行い、延伸倍率を２．５倍、延伸ゾーンの温度を実施例１，２は７０℃、実施例３は８０℃で紡糸した。繊度、５５、１１１、２２２ｄｔｅｘのモノフィラメントを紡糸した。それら得られたモノフィラメントについて、評価した結果を第１表に示す。得られたモノフィラメントのＴｇは５５℃であった。弾性回復率は、天然ヒト毛髪に近い結果を得た。また、天然ヒト毛髪との比較においては、非常に天然ヒト毛髪に近い風合いを得た。更に、経時的にその風合いを維持するものであった。
［実施例４〜６］
ポリトリメチレンテレフタレートを使用して紡糸温度２７０℃で溶融押し出しを行い、延伸倍率を３．５倍、延伸ゾーンの温度を実施例４，５は８０℃、実施例６は１００℃で紡糸した。繊度、５５、１１１、２２２ｄｔｅｘのモノフィラメントを紡糸した。それら得られたモノフィラメントについて、評価した結果を第１表に示す。得られたモノフィラメントのＴｇは６５℃であった。弾性回復率は、天然ヒト毛髪に近い結果を得た。また、天然ヒト毛髪との比較においては、非常に天然ヒト毛髪に近い風合いを得た。更に、経時的にその風合いを維持するものであった。
ポリエチレンテレフタレート（ＰＥＴ）、ナイロン（Ｎｙ）、アクリル（ＡＮ）、塩化ビニル（ＰＶＣ）を紡糸し、同様に評価した。その結果を第２表に示す。
比較例では、何れにおいても、弾性回復率が低く、また、天然ヒト毛髪に近い風合いを得ることができなかった。
(1) Intrinsic viscosity Using ortho-chlorophenol as a solvent, the viscosity was measured by a measurement method using an Ostwald viscometer at a polymer concentration of 1.0% and 35 ° C.
(2) Glass transition point Using a thermal analyzer (EXSTAR6000) manufactured by Seiko Instruments Inc., measurement was performed in dry nitrogen at a heating rate of 20 ° C./min.
(3) Elastic recovery rate A 200-gram weight was suspended from a sample length of 100 centimeters for 24 hours and then released, and the sample length after 1 hour was measured.
The elastic recovery rate of natural human hair by this method was 85%.
(4) Comparison of texture The texture of artificial hair and natural human hair was compared visually.
◎: Texture close to natural human hair ○: Texture close to natural human hair Δ: Clearly not natural human hair ×: Clearly not natural human hair [Examples 1-3]
Polytrimethylene terephthalate (intrinsic viscosity 0.85) was used for melt extrusion at a spinning temperature of 270 ° C., the draw ratio was 2.5 times, and the temperature of the draw zone was 70 ° C. in Examples 1 and 2. Was spun at 80 ° C. Monofilaments with fineness of 55, 111, 222 dtex were spun. The results of evaluating the monofilaments obtained are shown in Table 1. The obtained monofilament had a Tg of 55 ° C. The elastic recovery rate was close to that of natural human hair. Further, in comparison with natural human hair, a texture very similar to natural human hair was obtained. Furthermore, the texture was maintained over time.
[Examples 4 to 6]
Polytrimethylene terephthalate was used for melt extrusion at a spinning temperature of 270 ° C., the draw ratio was 3.5 times, the temperatures of the draw zones were 80 ° C. in Examples 4 and 5, and 100 ° C. in Example 6. Monofilaments with fineness of 55, 111, 222 dtex were spun. The results of evaluating the monofilaments obtained are shown in Table 1. The obtained monofilament had a Tg of 65 ° C. The elastic recovery rate was close to that of natural human hair. Further, in comparison with natural human hair, a texture very similar to natural human hair was obtained. Furthermore, the texture was maintained over time.
Polyethylene terephthalate (PET), nylon (Ny), acrylic (AN), and vinyl chloride (PVC) were spun and evaluated in the same manner. The results are shown in Table 2.
In any of the comparative examples, the elastic recovery rate was low and a texture close to that of natural human hair could not be obtained.
本発明のポリトリメチレンテレフタレートを含むモノフィラメントは、人工毛髪に用いた場合、公知のポリアミド繊維、ポリエステル繊維、アクリル繊維等からなる人工毛髪に比較して、外観、質等を著しく向上したものとなる。従って、本発明のポリトリメチレンテレフタレートを含むモノフィラメントからなる人工毛髪は極めて有用である。 When used for artificial hair, the monofilament containing polytrimethylene terephthalate of the present invention has a markedly improved appearance, quality and the like compared to artificial hair made of known polyamide fiber, polyester fiber, acrylic fiber, etc. . Accordingly, artificial hair made of monofilaments containing the polytrimethylene terephthalate of the present invention is extremely useful.
Claims (5)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003273918 | 2003-07-14 | ||
| JP2003273918 | 2003-07-14 | ||
| PCT/JP2004/008705 WO2005004652A1 (en) | 2003-07-14 | 2004-06-15 | Artificial hair and manufacturing method of the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPWO2005004652A1 true JPWO2005004652A1 (en) | 2006-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005511493A Pending JPWO2005004652A1 (en) | 2003-07-14 | 2004-06-15 | Artificial hair and method for producing the same |
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| Country | Link |
|---|---|
| US (1) | US20060188715A1 (en) |
| JP (1) | JPWO2005004652A1 (en) |
| KR (1) | KR20060067928A (en) |
| CN (1) | CN100396204C (en) |
| WO (1) | WO2005004652A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070001150A (en) * | 2004-03-19 | 2007-01-03 | 가부시키가이샤 가네카 | Flame-retardant polyester artificial hair |
| WO2007049561A1 (en) * | 2005-10-28 | 2007-05-03 | Kaneka Corporation | Polyester-based artificial hair |
| CA2636318A1 (en) * | 2006-01-30 | 2007-08-02 | Aderans Holdings Co., Ltd. | Artificial hair, wig having artificial hair and method of producing artificial hair |
| US20090040950A1 (en) * | 2007-08-06 | 2009-02-12 | Freeburg Thomas A | Time division duplex (TDD) |
| CN102732982A (en) * | 2012-06-21 | 2012-10-17 | 精源(南通)化纤制品有限公司 | Microbending treatment method for polytrimethylene terephthalate (PTT) protofilament for artificial hair |
| WO2014033935A1 (en) * | 2012-08-31 | 2014-03-06 | 富士ケミカル株式会社 | Artificial hair, and wig comprising same |
| JP6870957B2 (en) * | 2016-10-28 | 2021-05-12 | 株式会社アートネイチャー | Artificial hair and wigs |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2679982B2 (en) * | 1987-02-23 | 1997-11-19 | 帝人株式会社 | Artificial hair |
| JPH11172526A (en) * | 1997-11-26 | 1999-06-29 | Asahi Chem Ind Co Ltd | Polyester fiber having low thermal stress and spinning thereof |
| JP2002212835A (en) * | 2000-11-16 | 2002-07-31 | Kanegafuchi Chem Ind Co Ltd | Heat-shrinkable polyester-based fiber and artificial hair using the same |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2071250A (en) * | 1931-07-03 | 1937-02-16 | Du Pont | Linear condensation polymers |
| US3350354A (en) * | 1966-11-22 | 1967-10-31 | Du Pont | Polymeric polyesters of m-terphenyl-4, 4-dicarboxylic acid |
| JPS5526204B1 (en) * | 1970-11-20 | 1980-07-11 | ||
| JPH0696804B2 (en) * | 1988-11-21 | 1994-11-30 | 株式会社クラレ | Easy setting artificial hair and method for producing the same |
| JPH09132813A (en) * | 1995-11-07 | 1997-05-20 | Kanegafuchi Chem Ind Co Ltd | Fiber and fiber bundle for artificial hair having improved feeling |
| US6503623B1 (en) * | 1998-12-28 | 2003-01-07 | Asahi Kasei Kabushiki Kaisha | Yarn comprising polytrimethylene terephthalate |
| MXPA01011167A (en) * | 2000-03-03 | 2002-05-06 | Du Pont | Poly(trimethylene terephthalate) yarn. |
| BR0109612A (en) * | 2000-03-30 | 2004-01-13 | Asahi Chemical Ind | Monofilament yarn and method for its production |
| JP2002161423A (en) * | 2000-11-22 | 2002-06-04 | Artnature Co Ltd | Artificial hair |
| US7759430B2 (en) * | 2003-07-25 | 2010-07-20 | Kaneka Corporation | Flame retardant polyester fiber for artificial hair |
| PT1650333E (en) * | 2003-07-25 | 2014-11-06 | Kaneka Corp | Flame-retardant polyester fibers for artificial hair |
| JP4819502B2 (en) * | 2003-12-08 | 2011-11-24 | 株式会社カネカ | Flame retardant polyester artificial hair fiber |
| JP4798700B2 (en) * | 2004-10-21 | 2011-10-19 | 憲司 中村 | Brush hair |
-
2004
- 2004-06-15 JP JP2005511493A patent/JPWO2005004652A1/en active Pending
- 2004-06-15 US US10/564,054 patent/US20060188715A1/en not_active Abandoned
- 2004-06-15 KR KR1020057025411A patent/KR20060067928A/en not_active Application Discontinuation
- 2004-06-15 CN CNB2004800201664A patent/CN100396204C/en not_active Expired - Fee Related
- 2004-06-15 WO PCT/JP2004/008705 patent/WO2005004652A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2679982B2 (en) * | 1987-02-23 | 1997-11-19 | 帝人株式会社 | Artificial hair |
| JPH11172526A (en) * | 1997-11-26 | 1999-06-29 | Asahi Chem Ind Co Ltd | Polyester fiber having low thermal stress and spinning thereof |
| JP2002212835A (en) * | 2000-11-16 | 2002-07-31 | Kanegafuchi Chem Ind Co Ltd | Heat-shrinkable polyester-based fiber and artificial hair using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100396204C (en) | 2008-06-25 |
| KR20060067928A (en) | 2006-06-20 |
| WO2005004652A1 (en) | 2005-01-20 |
| CN1822775A (en) | 2006-08-23 |
| US20060188715A1 (en) | 2006-08-24 |
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