US20120128975A1 - Conjugate fibers for stockings - Google Patents

Conjugate fibers for stockings Download PDF

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Publication number
US20120128975A1
US20120128975A1 US13/119,003 US200913119003A US2012128975A1 US 20120128975 A1 US20120128975 A1 US 20120128975A1 US 200913119003 A US200913119003 A US 200913119003A US 2012128975 A1 US2012128975 A1 US 2012128975A1
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US
United States
Prior art keywords
fiber
stockings
conjugate fiber
conjugate
polyether block
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.)
Abandoned
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US13/119,003
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English (en)
Inventor
Masashi Ueda
Hiroyuki Manabe
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.)
KB Seiren Ltd
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KB Seiren Ltd
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Filing date
Publication date
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Assigned to KB SEIREN, LTD. reassignment KB SEIREN, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MANABE, HIROYUKI, UEDA, MASASHI
Publication of US20120128975A1 publication Critical patent/US20120128975A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/40—Polyamides containing oxygen in the form of ether groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
    • 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
    • D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
    • 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
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • 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
    • Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
    • Y10T428/2924—Composite
    • 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
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • Y10T428/2931—Fibers or filaments nonconcentric [e.g., side-by-side or eccentric, etc.]

Definitions

  • the present invention relates to the conjugate fibers for stockings.
  • the covered elastic yarn is composed of an elastic core yarn and polyamide (typically such as nylon 6 or nylon 66)-based filaments as a covering yarn wound around the core yarn.
  • polyamide typically such as nylon 6 or nylon 66
  • the polyamide-based filaments have low hygroscopicity as compared with natural fibers and therefore, when the polyamide-based filaments are used in stockings which are worn in touch with skin, they can cause the wearer stuffy or sticky feel due to perspiration.
  • the polyamide-based filaments also have high charging ability and therefore, when the polyamide-based filaments are used in the stockings, a skirt tends to cling to the stockings, which causes serious comfort issues.
  • a general sweat absorption processing includes adding an organic polymer compound containing hydrophilic groups during dyeing or a post treatment after the dyeing. However, this method provides reduces washing durability and is not enough solution.
  • Patent Document 1 As a method for imparting certain functionality to a covered yarn itself, it is well known in the prior art to provide the covered yarn with water absorbing property by using filaments of a peculiar cross-section as a covering yarn (Patent Document 1).
  • conjugate fibers As a method for production of transparent and soft stockings, it is well known in the prior art to use conjugate fibers. For example, there is provided a method for producing hygroscopic, transparent and soft stockings by using sheath-core conjugate fibers partially composed of a hygroscopic component such as polyether ester amide (Patent Document 2).
  • covering-type panty stockings such as that disclosed in Patent Document 1 are inferior in transparency and texture, even though they are ladies' panty stockings which are required to be highly fashionable and functional.
  • an object of the present invention is to provide conjugate fibers for stockings, having water-absorbing property, hygroscopicity, antistatic property, crimping property, and cool feeling without sacrificing productivity, transparency and texture.
  • a conjugate fiber for stockings comprising an eccentric conjugate fiber made from a fiber-forming resin and a polyether block amide copolymer, wherein the polyether block amide copolymer is exposed on the surface of the conjugate fiber at an angle of 5 to 90° in a cross-section of the conjugate fiber, the number of filaments is 1 to 10 in the conjugate fiber, and total fineness is 1 to 55 dtex.
  • conjugate fibers for stockings having high transparency and soft texture due to high crimping property, high productivity because of no need for wooly processing, and superior water-absorbing property, hygroscopicity, antistatic property, and cool feeling.
  • FIG. 1 is a schematic diagram showing a cross-section of a conjugate fiber for stockings according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram showing a cross-section of a conjugate fiber for stockings according to an embodiment of the invention.
  • FIG. 3 is a schematic diagram showing a cross-section of a conjugate fiber for stockings according to an embodiment of the invention.
  • a conjugate fiber for stockings according to the present invention is composed of an eccentric composite fiber which is made from a fiber-forming resin and a polyether block amide copolymer.
  • the fiber-forming resin may be any meltable fiber-forming resin, examples of which include polyamides such as nylon 6 and nylon 66; polyesters such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, fully aromatic polyester, and polylactic acid; polyolefins such as polyethylene and polypropylene; polymers composed mainly of any of them; and thermoplastic polymers such as polyphenylene sulfide and polyether ketone.
  • polyamide particularly, nylon 6
  • nylon 6 is preferably used, because it has high strength and provides durability even when it forms thin materials.
  • the polyether block amide copolymer may be, for example, a copolymer produced by copolycondensation of a polyamide unit having a reactive terminal group and a polyether unit having a reactive terminal group, such as (1) a diamine-terminated polyamide unit and a dicarboxyl-terminated polyoxyalkylene unit; (2) a dicarboxyl-terminated polyamide unit and polyether diol; or (3) a dicarboxyl-terminated polyamide unit and a diamine-terminated polyoxyalkylene unit (which can be produced by cyanoethylation and hydrogenation of a polyoxyalkylene unit having two hydroxyl groups in ⁇ - and ⁇ -positions).
  • the polyether block amide copolymer is preferably a copolymer produced by copolycondensation of the materials (2), which is represented by the following general formula,
  • PA represents a polyamide block (hard segment)
  • PE represents a polyether block (soft segment)
  • n represents the number of the repeating units.
  • the polyamide unit is preferably nylon 6, nylon 66, nylon 12, or the like
  • the polyether unit is preferably polyethylene glycol, polytetramethylene glycol, or the like.
  • the ratio by weight between the “polyamide unit” and the “polyether unit” is preferably from 99:1 to 5:95, more preferably from 80:20 to 10:90, and the copolymer whose ratio by weight is within such range is effectively used.
  • Pebax registered trademark
  • Arkema manufactured by Arkema
  • a cross-sectional shape of the conjugate fiber according to the present invention will be explained in the following.
  • the eccentric conjugate fiber of the present invention is composed of a fiber made from a combination of the two resins, that is, a fiber-forming resin and a polyether block amide copolymer, in which the centers of gravity of the fiber-forming resin and the polyether block amide copolymer are out of alignment in the cross-section of the fiber.
  • FIGS. 1 to 3 Some examples of the cross-sectional shape of the fiber are shown in FIGS. 1 to 3 .
  • a character A represents the polyether block amide copolymer
  • a character B represents the fiber-forming resin.
  • the conjugate fibers shown in FIGS. 1 and 2 are of an eccentric sheath-core type.
  • the outer fiber-forming resin B is C-shaped.
  • the conjugate fiber is preferably of an eccentric sheath-core type as shown in FIGS. 1 and 2 so as to increase the percentage crimp.
  • the fiber may also have two or more sections of polyether block amide copolymer A. In such a case, the fiber should be eccentric as a whole.
  • angle of exposure means the angle between two straight lines drawn from the center of the fiber to two points on the periphery of a fiber in a cross-section of the fiber, the points corresponding to both ends of an area of a pertinent section which is exposed on the surface of the fiber.
  • the angle of exposure is the sum of the angles of exposure of these sections.
  • an angle of exposure is required to fall within the range of 5 to 90°, preferably 5 to 80°.
  • the conjugate fiber is excellent in water-absorbing properties, hygroscopicity, antistatic property, and cool feeling, and the conjugate fiber has high productivity and good dye ability.
  • the size (total fineness) of the conjugate fiber of the present invention falls within the range of 1 to 55 dtex, preferably 5 to 30 dtex. If the total fineness of the fiber is less than 1 dtex, the fiber may have practically insufficient durability, and on the other hand, if the total fineness is more than 55 dtex, the fiber may tend to have insufficient transparency or rough and hard texture.
  • the conjugate fiber of the present invention is composed of 1 to 10 filaments.
  • the fiber is composed of 2 to 7 filaments, so that it can have high transparency, good texture, soft touch, and high durability.
  • the fiber preferably has a percentage crimp of 10% or higher.
  • the percentage crimp is more preferably 40% or higher, particularly preferably 50% or higher.
  • the conjugate fiber can have not only high transparency, good texture and soft touch but also superior cool feeling. Since the conjugate fiber of the invention is crimpy, it can be used as it is producing stockings without any further processing such as wooly processing, which increases the productivity.
  • an area ratio (cross-sectional area ratio) of the fiber-forming resin to the polyether block amide copolymer is preferably 90/10 or less.
  • the area ratio of the fiber-forming resin to the polyether block amide copolymer is preferably 10/90 or more, particularly preferably 20/80 or more.
  • the conjugate fiber of the present invention can be produced using a conventional spinning machine for conjugate fiber.
  • the fiber may be produced by a conventional method in which a spinning process is performed at a speed of about 500 to about 1,500 m/minute and then a drawing and heat treating process is performed, or by a high-speed spinning method such as a spin-draw method.
  • the fiber-forming resin may contain a small amount of any other polymer, an antioxidant, a pigment, a delustering agent, an anti-microbial agent, inert fine particles, or any other additive.
  • the conjugate fiber of the present invention is suitable for using as a knitting yarn of stockings.
  • Stockings include panty stockings, short stockings (below the knee), long stockings (up to the thighs), and other various stockings.
  • Stockings may be produced using only the conjugate fibers of the present invention or using the conjugate fibers of the invention and any other fibers. Yarn composed of a mixture of the conjugate fibers of the present invention and natural fibers may also be used. In these cases, the stockings include 20 to 100% by weight of the fibers of the present invention, preferably. A basis weight, gauge and the like of the stockings are not limited, but may be appropriately determined for any purpose.
  • the effective functions of the conjugate fiber can be imparted to the stockings by the use of the conjugate fiber of the present invention.
  • the Byreck method was applied. A 20 cm ⁇ 2.5 cm piece of knitted fabric was used as a sample. The height (cm) of water soaked up through the sample by capillary action was measured at the temperature of 20° C. during 10 minutes.
  • a 20 cm ⁇ 2.5 cm piece of knitted fabric was used as a sample.
  • the sample was placed in a thermo-hygrostat at 25° C. and 90% RH, and after 24 hours, the increase in the weight of the sample was measured.
  • the hygroscopicity was expressed as the ratio (%) of the increase in the weight to the initial weight.
  • the friction electrification voltage was measured by the frictional electrification voltage measurement method according to JIS L 1094 (1997).
  • a BT-Box (10 g/cm 2 in pressure) kept at a temperature of 33° C. was placed on humidity controlled three-fold stockings (6 layers) in a room at a temperature of 23° C. and a humidity of 55% RH, and the heat flux per unit area was measured under a temperature difference of 10° C. using a Thermolabo II manufactured by KATO TECH CO., LTD.
  • q-max is preferably 0.110 (J/cm 2 ⁇ sec) or more.
  • the fiber was sliced by a microtome and a photograph of the cross-section of the fiber was taken using a stereoscopic microscope. On the photograph, two straight lines were drawn from the center point of the fiber to two points on the periphery of the fiber, the points corresponding to both ends of an area of a pertinent section which is exposed on the surface of the fiber, and then the angle between those two straight lines was measured using a protractor.
  • the percentage crimp is defined as a value calculated from the following formula.
  • a tension loading of 200 g was applied to a sample (conjugate fiber), and after a lapse of 1 minute, the length (L 0 ) thereof was measured.
  • the tension loading was removed from the sample, and the sample was hung with a load of 1 g, after that, the sample was immersed in hot water at 100° C. for 10 minutes and air-dried for 16 hours while the 1 g load was applied to the sample.
  • the length (L 1 ) of the air-dried sample was measured, while the 1 g load was applied to the sample.
  • the undrawn yarn was drawn at room temperature under the condition of a draw speed of 800 m/minute and a draw ratio of 3.28 times.
  • the drawn yarn was wound into a pirn at a winding hardness in the range of 80 to 75, thereby a 22 dtex/2f conjugate fiber for stockings was obtained.
  • the conjugate fiber was knitted into stockings using a 4-feeder seamless stocking knitting machine under the condition of a number of revolutions of 900 rpm. As a result, the conjugate fiber according to the invention was successfully knitted with no problem.
  • the obtained stockings were well dyed and excellent in transparency and touch.
  • the conjugate fiber according to the present invention could be used for knitting stockings without any crimp processing because of its crimp characteristic, thereby high productivity was achieved.
  • the obtained conjugate fiber had a percentage crimp of 52%.
  • the obtained stockings were well dyed and excellent in transparency and touch.
  • the conjugate fiber according to the present invention could be used for knitting stockings without any crimp processing because of its crimp characteristic, thereby high productivity was achieved.
  • thermoplastic polyurethane elastomer manufactured by Dainichiseika Color & Chemicals Mtg. Co., Ltd.
  • nylon 6 manufactured by Mitsubishi Chemical Corporation
  • the undrawn yarn was drawn at room temperature under the conditions of a draw speed of 600 m/minute and a draw ratio of 3.50 times.
  • the drawn yarn was wound into a pirn at a winding hardness in the range of 80 to 75, thereby a 19 dtex/2f conjugate fiber for stockings was obtained.
  • the obtained conjugate fiber had a percentage crimp of 48%.
  • the conjugate fiber was used in knitting under the same conditions as those in Example 1. Subsequently, according to conventional methods, the stockings were dyed at 95° C. and finished by form setting with steam at 110° C.
  • the conjugate fiber of the present invention is suitable for using in stockings.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Multicomponent Fibers (AREA)
  • Socks And Pantyhose (AREA)
  • Knitting Of Fabric (AREA)
US13/119,003 2008-09-30 2009-09-29 Conjugate fibers for stockings Abandoned US20120128975A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008-252284 2008-09-30
JP2008252284 2008-09-30
PCT/JP2009/066931 WO2010038732A1 (ja) 2008-09-30 2009-09-29 ストッキング用複合繊維

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US20120128975A1 true US20120128975A1 (en) 2012-05-24

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US13/119,003 Abandoned US20120128975A1 (en) 2008-09-30 2009-09-29 Conjugate fibers for stockings

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US (1) US20120128975A1 (zh)
EP (1) EP2345754A4 (zh)
JP (1) JP5547643B2 (zh)
KR (1) KR101617315B1 (zh)
CN (1) CN102171390B (zh)
WO (1) WO2010038732A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3045572A1 (en) * 2013-08-02 2016-07-20 Toray Chemical Korea Inc. C-shaped composite fiber, c-shaped hollow fiber thereof, fabric including same, and method for manufacturing same
WO2018170055A1 (en) 2017-03-17 2018-09-20 Nike Innovate C.V. Textiles and methods of making the same
CN110799681A (zh) * 2017-06-23 2020-02-14 东丽株式会社 聚氨酯-尼龙6偏心芯鞘复合纤维

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JP2010189773A (ja) * 2009-02-16 2010-09-02 Gunze Ltd コンジュゲート繊維及び生地
JP5324250B2 (ja) * 2009-02-16 2013-10-23 グンゼ株式会社 生地
JP5687585B2 (ja) * 2011-08-31 2015-03-18 東洋紡Ｓｔｃ株式会社 発汗時に快適な衣料用編物
EP2873756B1 (en) * 2012-07-12 2019-04-03 KB Seiren, Ltd. Sheath-core bicomponent fibre
KR102588119B1 (ko) * 2015-12-08 2023-10-12 도레이 카부시키가이샤 흡습성 심초 복합사 및 포백
JPWO2017221713A1 (ja) * 2016-06-22 2019-04-11 東レ株式会社 高熱収縮性ポリアミド複合繊維および加工糸およびそれらを一部に用いた織編物
CN106519656A (zh) * 2016-11-21 2017-03-22 郑州源冉生物技术有限公司 一种袜子用复合材料
JP6687201B2 (ja) * 2017-06-26 2020-04-22 日本エステル株式会社 ポリアミド繊維
CN115896965A (zh) * 2022-11-16 2023-04-04 中纺院（浙江）技术研究院有限公司 一种偏心皮芯型锦氨复合全牵伸丝及其制备方法

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Cited By (9)

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Publication number Priority date Publication date Assignee Title
EP3045572A1 (en) * 2013-08-02 2016-07-20 Toray Chemical Korea Inc. C-shaped composite fiber, c-shaped hollow fiber thereof, fabric including same, and method for manufacturing same
US20160251777A1 (en) * 2013-08-02 2016-09-01 Toray Chemical Korea Inc. C-Shaped Composite Fiber, C-Shaped Hollow Fiber Thereof, Fabric Including Same, And Method For Manufacturing Same
EP3045572A4 (en) * 2013-08-02 2017-03-29 Toray Chemical Korea Inc. C-shaped composite fiber, c-shaped hollow fiber thereof, fabric including same, and method for manufacturing same
US10947644B2 (en) * 2013-08-02 2021-03-16 Toray Advanced Materials Korea Inc. C-shaped composite fiber, C-shaped hollow fiber thereof, fabric including same, and method for manufacturing same
WO2018170055A1 (en) 2017-03-17 2018-09-20 Nike Innovate C.V. Textiles and methods of making the same
EP3595469A4 (en) * 2017-03-17 2021-03-10 Nike Innovate C.V. TEXTILES AND METHOD FOR MANUFACTURING THEREOF
EP3939456A1 (en) * 2017-03-17 2022-01-19 Nike Innovate C.V. Textiles and methods of making the same
US11812807B2 (en) 2017-03-17 2023-11-14 Nike, Inc. Textiles and methods of making the same
CN110799681A (zh) * 2017-06-23 2020-02-14 东丽株式会社 聚氨酯-尼龙6偏心芯鞘复合纤维

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KR20110065532A (ko) 2011-06-15
CN102171390A (zh) 2011-08-31
JPWO2010038732A1 (ja) 2012-03-01
KR101617315B1 (ko) 2016-05-02
WO2010038732A1 (ja) 2010-04-08
EP2345754A4 (en) 2012-03-21
EP2345754A1 (en) 2011-07-20
CN102171390B (zh) 2013-03-06
JP5547643B2 (ja) 2014-07-16

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