EP3069625A1 - Filament für kunsthaar und kunsthaarprodukt - Google Patents

Filament für kunsthaar und kunsthaarprodukt Download PDF

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Publication number
EP3069625A1
EP3069625A1 EP14860534.8A EP14860534A EP3069625A1 EP 3069625 A1 EP3069625 A1 EP 3069625A1 EP 14860534 A EP14860534 A EP 14860534A EP 3069625 A1 EP3069625 A1 EP 3069625A1
Authority
EP
European Patent Office
Prior art keywords
filament
artificial hair
resin
hair
interlobe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14860534.8A
Other languages
English (en)
French (fr)
Other versions
EP3069625A4 (de
EP3069625B1 (de
Inventor
Misuzu TOKI
Tomokazu Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Monofilament Co Ltd
Original Assignee
Toray Monofilament Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toray Monofilament Co Ltd filed Critical Toray Monofilament Co Ltd
Publication of EP3069625A1 publication Critical patent/EP3069625A1/de
Publication of EP3069625A4 publication Critical patent/EP3069625A4/de
Application granted granted Critical
Publication of EP3069625B1 publication Critical patent/EP3069625B1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00—Wigs
    • A41G3/0083—Filaments for making wigs
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00—Wigs
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2503/00—Domestic or personal
    • D10B2503/08—Wigs

Definitions

  • the invention relates to a fiber for artificial hair for use for a hairpiece, a hair wig, a hair extension, or the like.
  • a modacrylic fiber, a vinyl chloride fiber, a vinylidene chloride fiber, a polyester fiber, a nylon fiber, and the like have been used as fibers for artificial hair.
  • synthetic hair products such as hair pieces, hair wigs, hair extensions, or the like
  • researches and developments of fibers suitable for these products have been cumulatively made, and studies and improvements on shapes of cross section of fibers have also been cumulatively done.
  • fibers for artificial hair whose shapes of cross section have a constriction at a central portion such as a spectacles shape or a cocoon shape, have been proposed (refer to, e.g., Patent document 1).
  • the fiber whose shape of cross section has a constriction at a center portion as proposed in Patent document 1 does not readily give a volume and inevitably bends in a short-diameter direction. Therefore, there exist problems that the orientations of the fiber become uniform at a curved surface and the luster likely becomes unnatural and that when subjected curling, the fiber does not easily produce three-dimensional appearance.
  • the fibers having shapes of cross section as proposed in Patent documents 2 and 3 improve presentation of a volume but are subject to yarn cracking or yarn breakage under external force and are not satisfactory in terms of durability.
  • a purpose of the invention is to provide a filament for artificial hair which is excellent in terms of volume and luster and not subject to yarn cracking or yarn breakage.
  • a filament for artificial hair which is a filament of a thermoplastic resin and whose shape of a cross section in a direction perpendicular to a fiber axis is a multilobal shape having three or more interlobe gap regions, wherein widths of the interlobe gap regions are 10 to 60% of a width of the filament and depths of the interlobe gap regions are 5 to 30% of a height of the filament.
  • the number of the multilobal shaped lobe regions be 3 to 8
  • the fineness of single filament be 20 to 150 dtex
  • the thermoplastic resin be at least one species selected from the group consisting of a polyester resin, a polyamide resin, an acrylic resin, a polyvinyl chloride resin, a polyacrylonitrile resin, a polyphenylene sulfide resin, and a cellulose resin, are cited as preferable conditions. If these conditions are satisfied, further excellent performance will be delivered.
  • the artificial hair product of the invention is characterized in that the foregoing filament for artificial hair has been used in at least a part of material for hair.
  • a filament for artificial hair that is excellent in terms of volume and luster and not subject to yarn cracking or yarn breakage can be obtained as described below.
  • Figs. 1(a) to 1(c) and Figs. 2(d) to 2(e) are each a sectional view of a filament for artificial hair according to the invention, taken in a direction perpendicular to the fiber axis.
  • 1 represents a filament for artificial hair
  • 2 represents an interlobe gap region
  • 3 represents a lobe region.
  • the interlobe gap region refers to a groove that a depression portion in a cross section forms along the fiber axis direction of the filament
  • the depression portion in the cross section is also termed the interlobe gap region in this description.
  • the lobe region refers to a portion sandwiched between interlobe gap regions adjacent to each other, and is a concept that applies in both a filament and a cross section, as is the case with the interlobe gap region.
  • the filament for artificial hair of the invention has a cross section in a direction perpendicular to the fiber axis which is a multilobal shape having three or more interlobe gap regions.
  • the interlobe gap regions have such a specific shape. Note that in this description, the cross section is assumed to indicate a cross section in a direction perpendicular to the fiber axis unless particularly mentioned regarding the direction of section.
  • the multilobal shape in the invention is a shape having a plurality of interlobe gap regions and lobe regions segmented by the interlobe gap regions.
  • the shapes in (a) to (c) of Fig. 1 and (a) of Fig. 2 are called trilobe
  • the shape in (b) of Fig. 2 is called tetralobe
  • the shape in (c) of Fig. 2 is called pentalobe.
  • the widths (W2) of the interlobe gap regions are 10 to 60% of the width (W1) of the filament.
  • Such a proportion of the width (W2) of each interlobe gap region to the width (W1) of the filament is a proportion (hereinafter, sometimes mentioned simply as W2/W1) is preferred to be greater than or equal to 30% and more preferred to be greater than or equal to 40%.
  • W2/W1 is preferred to be less than or equal to 55% and more preferred to be less than or equal to 50%.
  • the depths (H2) of the interlobe gap regions are 5 to 30% of the height (H1) of the filament.
  • Such a proportion of the depth (H2) of each interlobe gap region to the height (H1) of the filament (hereinafter, sometimes mentioned simply as H2/H1) is preferred to be greater than or equal to 10% and more preferred to be greater than or equal to 15%.
  • the H2/H1 is preferred to be less than or equal to 25% and more preferred to be less than or equal to 20%.
  • satisfaction of the foregoing relations by the values of the width (W1) of the filament, the widths (W2) of the interlobe gap regions, the height (H1) of the filament, and the depths (H2) of the interlobe gap regions is satisfaction of the foregoing relations by the foregoing values that are found for each interlobe gap region of all the interlobe gap regions in the cross section of the filament.
  • the width (W1) of the filament, the widths (W2) of the interlobe gap regions, the height (H1) of the filament, and the depths (H2) of the interlobe gap regions are defined as follows.
  • a tangential line that contacts both of two lobe regions adj acent to each other across one interlobe gap region is drawn, and the maximum value of the distance between outlines of the filament measured in a direction parallel with that tangential line is defined as the width (W1) of the filament, and the distance between the two points of contact between the tangential line and the lobe regions is defined as the width (W2) of the interlobe gap region.
  • the maximum value of the distance between outlines of the filament measured in a direction perpendicular to the tangential line is defined as the height (H1) of the filament, and the maximum value of the depth of the interlobe gap region measured in the direction perpendicular to the tangential line is defined as the depth (H2) of the interlobe gap region.
  • the number of lobe regions in the multilobal shape is preferred to be 3 to 8, more preferred to be 3 to 6, and even more preferred to 3 or 4. If the number of lobe regions is outside the foregoing range, it is likely that there will be tendency of it being difficult to satisfy the relation between the width of each interlobe gap region and the width of the filament and the relation between the depth of each interlobe gap region and the height of the filament.
  • the kind of the filament does not matter, but the filament is preferred to be a monofilament.
  • the shape of cross section of each of the single yarns that constitute the multifilament is to satisfy what are mentioned.
  • the fineness of the filament for artificial hair of the invention is preferred to be 20 to 150 dtex. As for the fineness, 30 dtex or greater is more preferable and 40 dtex or greater is even more preferable. On the other hand, as for the upper limit thereof, 130 dtex or less is more preferable, 100 dtex or less is even more preferable, and 70 dtex or less is particularly preferable.
  • the filament may be a filament of a single fineness, but filaments of a plurality of finesses may be combined for use within the foregoing ranges. Note that, as for the fineness of the filament, in the case of a multifilament, it is assumed that the average value of the finenesses of the single yarns that constitute the multifilament is within the foregoing range.
  • the filament for artificial hair of the invention is a filament of thermoplastic resin.
  • the kind of the thermoplastic resin does not matter but is preferred to be, for example, at least one species selected from the group consisting of polyester resin, polyamide resin, acrylic resin, polyvinyl chloride resin, polyacrylonitrile resin, polyphenylene sulfide resin, and cellulose resin.
  • the polyester resin, the polyamide resin, and the polyphenylene sulfide resin are preferable.
  • the filament for artificial hair of the invention may, according to need, contain a delusterant, such as titanium oxide, calcium carbonate, kaolin, or clay, a pigment, a dye, a lubricant, an antioxidant, a heat-resistant agent, an anti-steaming agent, a light resistant agent, an ultraviolet absorbent, an antistatic agent, a fluorescent agent, a plasticizing agent, an antimicrobial agent, etc.
  • a delusterant such as titanium oxide, calcium carbonate, kaolin, or clay, a pigment, a dye, a lubricant, an antioxidant, a heat-resistant agent, an anti-steaming agent, a light resistant agent, an ultraviolet absorbent, an antistatic agent, a fluorescent agent, a plasticizing agent, an antimicrobial agent, etc.
  • the filament for artificial hair of the invention may contain a known organic or inorganic flame retardant, such as a phosphorus based or halogen based one, or antimony trioxide, in order to protect human bodies from the risk of a fire during use.
  • a known organic or inorganic flame retardant such as a phosphorus based or halogen based one, or antimony trioxide
  • the filament for artificial hair of the invention may be one in which the polyester that constitute the filament for artificial hair has been modified or one whose surface has been provided with an antistatic agent, for the purpose of preventing the clinging or tangling of the filament due to electric withstanding or the attachment of dust.
  • the filament surface may be provided with a known surface active agent, such a silicone based agent, in order to further improve the combing property.
  • the tensile strength and the knot tenacity of the filament for artificial hair of the invention are preferred to be 1 to 5 cN/dtex and 0.5 to 3 cN/dtex, respectively. If the tensile strength and the knot tenacity are within the foregoing ranges, there is a tendency that, during the processing stage of the artificial hair product, the process passability will be good.
  • the bending hardness is preferred to be 0.03 to 0.25 cN. If the bending hardness thereof is within the foregoing range, an elasticity of hair similar to that of human hair is likely to be felt.
  • the production method is not particularly limited, but known fiber spinning methods can be adopted.
  • melt spinning will be described; however, the production method is not limited to this method.
  • various raw materials are placed in a hopper.
  • various additives may be mixed in and then supplied.
  • the raw materials are supplied from the hopper into a single-screw extruder type melt spinning apparatus and melt spinning is performed It is desirable that the melt temperature at this time be about the melting point of the thermoplastic resin used + 20°C.
  • the molten polymer is metered by a gear pump in accordance with the final fineness of the filament, the molten polymer is filtrated through a metal filter in a spinning pack and spun out of the oddly shaped spinneret.
  • the spun-out undrawn fiber is continuously led into a cooling medium and is cooled and solidified.
  • a cooling medium for example, water, polyethylene glycol, etc. can be cited.
  • the cooling medium is not particularly limited as long as the cooling medium can be easily removed from the surface of the filament and does not cause a chemically or physically essential change.
  • the cooled and solidified undrawn fiber is subjected to heated single-stage drawing or multi-stage drawing and thermal setting in order to obtain a strength that the filament needs.
  • the heat medium used in this occasion air, warm water, steam, polyethylene glycol, glycerol, silicone oil, etc., can be cited, but the heat medium is also not particularly limited as long as it can be easily removed from the surface of the filament and does not cause a chemically or physically essential change.
  • the filament for artificial hair thus obtained is provided with deposit of a finish oil agent according to need, and then is wound up.
  • the filament for artificial hair obtained as described above may be subjected to known after processes, such as dyeing, alkali treatment, a sandblasting process, a crimping process, a yaki process, and a curling process, according to need.
  • the artificial hair product of the invention is a product in which the foregoing filament for artificial hair is used in at least part of the material for hair, and includes hairpieces, hair wigs, hair pieces, hair extensions, attached hair, doll hair, head hair ornaments, etc.
  • These artificial hair products can be produced by known methods.
  • the production methods for the artificial hair products themselves are not particularly limited.
  • evaluation of the filament for artificial hair and the artificial hair was performed by methods as follows. In each test, measurement was performed after the sample was left for 24 hours or more under conditions that the temperature was 20 ⁇ 2°C and the relative humidity was 65 ⁇ 4%. Measurement was performed with the number n of measurements being 1, unless particularly mentioned.
  • Fineness dtex mass g ⁇ 10000 / 2
  • a filament sample of 30 m was cut at every 1 m. From those, five samples were arbitrarily extracted. With respect to the five extracted samples, samples for section observation cut out in a direction perpendicular to the fiber axis direction of the filament were created. These samples were observed by using a digital microscope (VHX-500F, made by Keyence Corp.), and lengths mentioned below were measured with a main measurement tool.
  • VHX-500F digital microscope
  • the tensile stress [N] and the elongation (at break) [%], and the knot stress [N] and the elongation (at break) [%] of each filament were measured according to JIS L1013: 2010 8.5.1 and 8.6.1.
  • JIS L1013: 2010 8.5.1 and 8.6.1 JIS L1013: 2010 8.5.1 and 8.6.1.
  • an Autograph AG-50NIS made by Shimadzu Corporation, with a flat chuck attached, was used, and a test with n 5 was performed in conditions that the sample's length was 25 cm and the tension speed was 30 cm/min.
  • Bundles of straight artificial hair of 10 cm in length were prepared. These samples were put, in a predetermined amount, in order in parallel with the length direction within a container shown in Fig. 4 , and a load of 27 g (an aluminum square bar of 10 x 10 x 100 mm) was applied, and the heights h [mm] thereof were measured during a period of 5 to 10 seconds after the load was applied. Furthermore, the mass m [g] of the samples within the container was measured.
  • the predetermined amount refers to an amount such that the heights following application of the load become 5 to 10 mm.
  • a sample for section observation cut out in the direction perpendicular to the fiber axis direction of the filament was obtained.
  • observation was performed by using a digital microscope (VHX-500F, made by Keyence), and a sectional area A [mm 2 ] of a single yarn was measured by using the main measurement tool.
  • the content rate of interspace among filaments was calculated by using the following expression.
  • Content rate of interspace among filaments % 10 ⁇ 100 ⁇ h ⁇ A ⁇ m ⁇ 10 7 fineness 10 ⁇ 100 ⁇ h ⁇ 100
  • a sample holder having at its center a hole of 36 mm in diameter was used.
  • Eleven single yarns of the sample fixed equidistantly within a width of 6 mm in total formed by 3 mm to both sides from the center line of the hole were a sample.
  • the light source aperture was 10.5 mm in diameter, and the light receiving aperture was 9.1 mm in diameter.
  • a reflectance with respect to the reflection angle was measured by directing light at an incident angle of 30° and rotating the photoreceiver 0 to 90° as shown in Fig.
  • the G value is an indicator of shine, greater G values indicate that the shine caused by regular reflection is stronger and therefore that the luster is stronger.
  • G value Sf / d
  • the half-value width is an indicator of glariness. As the half-value width is smaller, the directionality of reflection is higher, giving greater glarinesses, and therefore it is indicated that the luster is strong.
  • a bundle of straight artificial hair of 40 cm in length and 150 g in mass was compared with a human hair bundle at a window inside a room with direct sunlight striking. Determinations based on views with an incident angle of the sunlight being 10° to 55° were made. Furthermore, an artificial hair bundle of the same amount was curled by using a curling iron of 32 mm in diameter under a condition of 130°C x 30 seconds, and compared with a human hair bundle at a window inside a room with direct sunlight striking. Determinations based on views with an incident angle of the sunlight being 10° to 55° were made.
  • the evaluation references for the determinations were as follows.
  • a polyethylene terephthalate chip containing 2.5 mass% of a cohesive silicon oxide particle (having an average particle diameter of 2.43 ⁇ m) and having a limiting viscosity (measured at 25°C in a 1:1 mixed solvent of phenol and tetrachlorethane) of 0.97 was dried in vacuum at 165°C for 9 hours.
  • the chip was supplied into an extrusion type fiber spinning machine at 285°C, and a heated and molten resin composition was extruded from a trilobal nozzle that corresponds to the yarn's shape of cross section in Fig.
  • the wound-up monofilament was dipped, as an alkali treatment, into a sodium hydroxide solution to subject the material for hair surface to dissolving processing. Then, washing and drying was performed to obtain a straight polyester monofilament:
  • This polyester monofilament was dyed black by using a dyeing method that is a usual method in a high-pressure dyeing machine. Next, using a washing method that is a usual method, reduction cleaning was performed to obtain a straight finish-dyed monofilament for artificial hair.
  • a straight monofilament for artificial hair was obtained in substantially the same manner as in Example 1, except that a polyethylene terephthalate chip containing 1.5 mas% of a colloidal silica (Sylysia 730, made by Fuji Silysia Chemical) and having a limiting viscosity of 1.10 was used and the extrusion nozzle was changed to a trilobal nozzle that corresponds to the yarn's shape of cross section in Fig. 1(c) .
  • a colloidal silica Sylysia 730, made by Fuji Silysia Chemical
  • the filaments for artificial hair having shapes of cross section that do not satisfy the conditions of the invention (Comparative Examples 1 to 3) were not only unnatural in terms of volume and luster but also subject to yarn cracking and yarn breakage and therefore unsuitable for use as a filament for artificial hair.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP14860534.8A 2013-11-11 2014-11-06 Filament für kunsthaar und kunsthaarprodukt Not-in-force EP3069625B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013232698 2013-11-11
PCT/JP2014/079476 WO2015068771A1 (ja) 2013-11-11 2014-11-06 人工毛髪用フィラメントおよび人工毛髪製品

Publications (3)

Publication Number Publication Date
EP3069625A1 true EP3069625A1 (de) 2016-09-21
EP3069625A4 EP3069625A4 (de) 2017-04-26
EP3069625B1 EP3069625B1 (de) 2019-01-02

Family

ID=53041547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14860534.8A Not-in-force EP3069625B1 (de) 2013-11-11 2014-11-06 Filament für kunsthaar und kunsthaarprodukt

Country Status (7)

Country Link
US (1) US20160302504A1 (de)
EP (1) EP3069625B1 (de)
JP (1) JP6970399B2 (de)
KR (1) KR20160085792A (de)
CN (1) CN105934172A (de)
PH (1) PH12016500849B1 (de)
WO (1) WO2015068771A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3760769A1 (de) 2019-07-02 2021-01-06 Carl Freudenberg KG Unregelmässig geformte polymerfasern
US11885043B2 (en) 2018-08-23 2024-01-30 Kaneka Corporation Acrylic fiber for artificial hair, and head decoration product including same

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CN106521695A (zh) * 2016-10-20 2017-03-22 河南瑞贝卡发制品股份有限公司 低亮度发用纤维生产方法
CN107034547A (zh) * 2016-11-08 2017-08-11 河南瑞贝卡发制品股份有限公司 发用聚氯乙烯纤维生产方法
CN110637112B (zh) * 2017-05-30 2021-09-24 电化株式会社 人造毛发用纤维
KR101972271B1 (ko) * 2018-09-05 2019-04-24 박한수 인조 모발용 원사를 제조하는 방법 및 장치
CN112962159A (zh) * 2021-03-01 2021-06-15 太仓逸枫化纤有限公司 一种高强度涤纶长丝、制备方法及制备装置
CN118292169A (zh) * 2023-12-26 2024-07-05 吴江福华织造有限公司 一种功能面料

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JP3365141B2 (ja) 1995-04-28 2003-01-08 鐘淵化学工業株式会社 人工毛髪用異形断面繊維
US6841247B2 (en) * 2002-08-16 2005-01-11 Honeywell International Inc. Fibers having improved dullness and products containing the same
JP2005120533A (ja) * 2003-10-17 2005-05-12 Kaneka Corp ポリエステル系人工毛髪用繊維
JPWO2005100650A1 (ja) * 2004-04-13 2008-03-06 株式会社カネカ 難燃性ポリエステル系人工毛髪
JP2005325504A (ja) * 2004-04-13 2005-11-24 Kaneka Corp 難燃性ポリエステル系人工毛髪
KR101256689B1 (ko) * 2005-03-04 2013-04-19 가부시키가이샤 가네카 스타일 변경성이 우수한 폴리염화비닐계 섬유
AP2364A (en) * 2005-06-16 2012-02-10 Denki Kagaku Kogyo Kk Fiber bundle for artificial hair and head decoration article comprising the same.
JPWO2006135060A1 (ja) * 2005-06-16 2009-01-08 電気化学工業株式会社 人工毛髪用繊維及びその製造方法、並びに、頭髪装飾製品
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WO2008029727A1 (fr) 2006-09-04 2008-03-13 Kaneka Corporation Fibres pour tresse faite de résine à base de chlorure de vinyle et article pour tresse les comprenant
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11885043B2 (en) 2018-08-23 2024-01-30 Kaneka Corporation Acrylic fiber for artificial hair, and head decoration product including same
EP3760769A1 (de) 2019-07-02 2021-01-06 Carl Freudenberg KG Unregelmässig geformte polymerfasern

Also Published As

Publication number Publication date
CN105934172A (zh) 2016-09-07
US20160302504A1 (en) 2016-10-20
JPWO2015068771A1 (ja) 2017-03-09
WO2015068771A1 (ja) 2015-05-14
EP3069625A4 (de) 2017-04-26
KR20160085792A (ko) 2016-07-18
JP6970399B2 (ja) 2021-11-24
PH12016500849A1 (en) 2016-06-13
PH12016500849B1 (en) 2016-06-13
EP3069625B1 (de) 2019-01-02

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