WO2004113600A1 - Procede et appareil d'etirage - Google Patents

Procede et appareil d'etirage Download PDF

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Publication number
WO2004113600A1
WO2004113600A1 PCT/JP2004/008457 JP2004008457W WO2004113600A1 WO 2004113600 A1 WO2004113600 A1 WO 2004113600A1 JP 2004008457 W JP2004008457 W JP 2004008457W WO 2004113600 A1 WO2004113600 A1 WO 2004113600A1
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WO
WIPO (PCT)
Prior art keywords
fiber bundle
support
fiber
roller
heating
Prior art date
Application number
PCT/JP2004/008457
Other languages
English (en)
Japanese (ja)
Inventor
Takaaki Suzuki
Takafumi Kouno
Akinori Nemoto
Takatoshi Suzuki
Original Assignee
Denki Kagaku Kogyo Kabushiki Kaisha
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 Denki Kagaku Kogyo Kabushiki Kaisha filed Critical Denki Kagaku Kogyo Kabushiki Kaisha
Priority to JP2005507220A priority Critical patent/JP4263721B2/ja
Publication of WO2004113600A1 publication Critical patent/WO2004113600A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch

Definitions

  • the present invention relates to a method and an apparatus for drawing synthetic fibers, and in particular, is used for decorating hair such as wigs, hairpieces, blades, and extension hair, or used for various dolls as a doll hair.
  • the present invention relates to a stretching method and a stretching apparatus for obtaining artificial hair.
  • a synthetic fiber drawing device As a synthetic fiber drawing device, a first roller for supplying fibers, a second roller for drawing fibers, and a roller between the first roller and the second roller are provided.
  • a heating tank having a resistor provided with a resistance is known (for example, see Patent Document 1).
  • the degree of engagement between the resistor and the fiber that imparts running resistance to the fiber is adjusted by adjusting means so that the running resistance applied to the fiber from the resistor can be adjusted.
  • the unstretched fibers are 120 to 320 denier and have a fiber diameter larger than that of synthetic fibers for general use.
  • the expression of softening due to heating is significantly different from synthetic fibers that use other raw materials.
  • the obtained product is a special field called artificial hair, and extremely strict quality control is required. Was extremely difficult.
  • Whitening of a fiber is a phenomenon in which when a fiber is stretched, a resin composition constituting the fiber is cut microscopically, and the surface of the fiber becomes white. Progress Or a phenomenon in which the fibers themselves are cut as a result of excessive melting or melting.
  • Patent Document 1 Japanese Patent No. 3274253
  • the present invention solves the above-mentioned conventional problems, that is, a stretching method and a stretching method capable of preventing fiber whitening and yarn breakage even when stretching a fiber bundle composed of 120 or more single fibers. It is intended to provide a device.
  • the present inventors have conducted intensive studies and as a result, by providing a resistance applying device for deforming the fiber bundle into a belt shape and applying sliding resistance at a specific position of the heating tank, the fiber bundle can be uniformly heated and softened.
  • the present inventors have found that the fibers can be whitened and that fiber whitening and yarn breakage can be prevented, and the present invention has been accomplished.
  • the drawing method of the present invention supplies a fiber bundle of synthetic fibers to a first roller and then rotates the fiber bundle at a peripheral speed higher than that of the first roller.
  • the fiber bundle is supplied to the rotating second roller to stretch the fiber bundle, the fiber bundle is introduced into a hollow box-shaped heating tank disposed between the first roller and the second roller to heat the fiber bundle.
  • the width of the fiber bundle is widened in a strip shape in the heating tank, and the fiber bundle is heated by contact heating.
  • the drawing method of the present invention differs from the drawing method of claim 1 in that the synthetic fiber is made of a polychlorinated vinyl resin. is there.
  • the drawing method of the present invention is the drawing method of claim 2, wherein the synthetic fiber is a synthetic fiber for artificial hair.
  • the drawing device of the present invention as described in claim 4, a first roller for supplying a fiber bundle of synthetic fibers, and rotates at a peripheral speed higher than the first roller.
  • a second roller that stretches the fiber bundle by a peripheral speed difference from the first roller, and a fiber roller that is disposed between the second roller and the second roller and that introduces the fiber bundle into the inside to heat and soften the fiber bundle
  • a synthetic fiber drawing apparatus having a hollow box-shaped heating tank, the fiber bundle is heated in the heating tank and a sliding resistance is applied to the fiber bundle while widening the fiber bundle in a band shape.
  • a heating resistance-imparting device comprising a plurality of supports each capable of being heated and a pressurizable body which can be heated, which is provided near the middle between two adjacent supports.
  • the pressurizing members are both rod-like members placed in parallel with the axis of the second roller and are in contact with the respective fiber bundles.
  • the pressurizing member is a fiber bundle of two supports adjacent to the pressurizing member. This is a stretching device that is placed away from a plane that includes both sliding surfaces.
  • the stretching apparatus of the present invention is the stretching apparatus according to claim 4, wherein the stretching apparatus has two support members and one pressing body.
  • the first support installed on the upstream side in the fiber bundle traveling direction is disposed at a position between the fiber bundle inlet of the heating tank and the center of the heating tank, and the second support
  • the body is disposed at a distance of 65550 mm from the first support in a downstream direction in the fiber bundle advance direction
  • the pressurizing body is arranged between the fiber bundle sliding contact surface of the first support and the second support.
  • This drawing device is disposed at a position on the plane including the fiber bundle sliding contact surface, which is vertically separated from the first support by 10 200 mm from a position of 50 350 mm in a downstream direction of the fiber bundle in the traveling direction of the fiber bundle.
  • both the support and the pressurized body are used.
  • This is a stretching device that can be heated by the electric energy supplied to it.
  • the stretching apparatus of the present invention is, as described in claim 7, in the stretching apparatus according to claim 4 or claim 5, wherein both the support and the pressurized body are externally connected to the support and the pressurizing body. It is a stretching device that can be heated by the heating fluid supplied inside the pressure body
  • the drawing device of the present invention is the same as the drawing device according to any one of claims 4 to 7, wherein the synthetic fiber is a polychlorinated vinyl resin.
  • This is a stretching device that is made of steel.
  • the stretching apparatus of the present invention is the stretching apparatus according to claim 8, wherein the synthetic fibers are synthetic fibers for artificial hair.
  • the surface layer and the center of the fiber bundle can be uniformly heated. Even in the core portion, as in the surface layer portion, it is possible to perform drawing without causing both whitening and thread breakage of the fiber.
  • both the surface layer portion and the center portion of the fiber bundle can be uniformly heated. Even in the central portion, as in the case of the surface layer portion, it is possible to extend the fiber without causing both whitening and thread breakage of the fiber.
  • FIG. 1 is a cross-sectional view schematically showing a main part of a synthetic fiber drawing apparatus (Example 1) according to the present invention.
  • FIG. 2 is a partial perspective view schematically showing the state of a resistance applying device 4 and a fiber bundle 5 of synthetic fibers in Example 1.
  • FIG. 3 is a model diagram showing an example in which a first support can be heated by electric energy supplied thereto.
  • FIG. 4 is a model diagram showing an example in which heating can be performed by a heating fluid supplied from the outside to the inside of the support.
  • FIG. 5 is an enlarged sectional view of a model in the vicinity of a heating / resistance applying device 4 of a heating tank 3.
  • the heating / resistance applying device is used for sandwiching a fiber bundle having a circular cross section from above and below or right and left to widen and deform it into a band shape, and to provide sliding resistance to the fiber bundle.
  • the fiber bundle that has been subjected to the widening deformation is effectively heated.
  • the shape of the resistance applying device includes a plurality of supports that can be heated, and a pressurizable body that can be heated and is provided at or near the middle of two adjacent supports. .
  • the heating and resistance imparting device expands and deforms the fiber bundle in a belt-like shape, thereby bringing the surface layer portion and the center portion of the fiber bundle close to each other and uniformly heating and softening the entire fiber bundle. Further, by giving sliding resistance to the fiber bundle, the drawing start position of the fiber is fixed so that the fiber can be drawn uniformly.
  • the plurality of rod-shaped supports in the heating and resistance applying device usually have a contact surface with the fiber on a plane including the fiber bundle contact surface of the first roller and the fiber bundle contact surface of the second roller. However, this does not apply when it is necessary to manufacture the equipment or when it is intended to provide particularly high sliding resistance.
  • the shapes of the support and the pressurizing body in the present invention are not particularly limited as long as the effects of the present invention are not impaired.
  • these are contact members that come into contact with the fiber bundle, they have a smooth shape.
  • a rod, plate, or the like having a circular, elliptical, or polygonal cross section may be used, and one or a combination of these may be employed.
  • the diameter is 10-150 mm
  • the thickness is 5-30 mm. It is desirable to have done it.
  • Examples of the material of the support and the pressing body in the present invention include metal materials such as iron, stainless steel, copper, and brass, and inorganic materials such as ceramics. Just fine.
  • the materials of the support and the pressing body in the present invention need to be heatable. Caro Even if the temperature of the heating tank is large, even if the temperature of the heating tank is huge, even if the temperature of the heating tank is enormous, it is not possible to sufficiently heat the fiber itself. Since the support and the heating element that come into contact with the fiber bundle are heated, the fiber bundle is Can be reliably heated up to the part.
  • Heating of the support and the pressurized body can be performed by resistance heating or the like using electric energy supplied thereto, or heating as a heat medium supplied from the outside to the inside thereof. It can be performed with a working fluid.
  • the production cost of the support, the pressurized body and the equipment for heating them is reduced, and the force running cost is increased.
  • the heating fluid is easily heated, so that the running cost is lower than in the former case, and the manufacturing cost of these supports, pressurizing bodies and equipment for heating them is higher.
  • means for heating and softening the fiber bundle may be a conventionally known means, for example, electric heating, steam, hot water, hot oil and the like.
  • the heating temperature may be appropriately set according to the material of the synthetic fiber to be drawn.
  • the fiber bundle when the fiber bundle is introduced into the hollow box-shaped heating tank disposed between the first roller and the second roller to be heated and softened, the fiber bundle is strip-shaped in the heating tank.
  • the contact heating by bringing the fiber bundle into contact with the heated contact member, that is, the support and the pressurized body that were heated together, could not be achieved by heating in the heating tank alone.
  • Sufficient heating of the fiber in the center of the fiber bundle is also possible, and as a result, it is possible to stretch the film at a predetermined magnification by the first roller and the second roller while preventing whitening and yarn breakage. .
  • Examples of the synthetic resin used in the stretching method and the stretching apparatus of the present invention include a conventionally known synthetic resin that can be molded as a fiber, such as a polystyrene resin, a polyphenylene ether resin, a polyolefin resin, a polyamide resin, and a polyester. Resin, polyphenylene sulfide resin, polymethacrylate resin, polyvinyl chloride resin and the like.
  • polystyrene resins include polystyrene, polystyrene-acrylonitrile copolymer, styrene- (meth) atalylate copolymer and the like.
  • Polyphenylene ether resins include poly (2,6_dimethyl-1,4-phenylene ether), poly (2,6-getyl-1,4_phenylene ether), and poly (2-methyl_6_ Ethyl-1, 4-phenylene ether).
  • Polyolefin resins include polyethylene and polypropylene. Examples of the polyamide resin include nylon 6, nylon 66, and the like. Polyester resins include polyalkylene terephthalate, polyarylate, polycarbonate And others. Examples of the polymethacrylate resin include polymethyl methacrylate and polybutyl methacrylate.
  • polyvinyl chloride resin polyvinyl chloride homopolymer, vinyl chloride vinylidene chloride copolymer, vinyl chloride acrylonitrile copolymer, vinyl chloride-ethylene copolymer, vinyl chloride-propylene copolymer,
  • a butyl chloride-alkyl butyl ether copolymer a butyl chloride monoacetic acid butyl copolymer, a butyl chloride monoacrylate copolymer, a vinyl chloride-maleic acid ester copolymer and the like.
  • additives used in the polyvinyl chloride resin composition may be used according to the purpose without impairing the effects of the present invention.
  • Additives include processing aids, strengthening agents, ultraviolet absorbers, antioxidants, antistatic agents, fillers, flame retardants, pigments, initial color improvers, conductivity-imparting agents, surface treatment agents, light stabilizers, There are fragrances.
  • the first support member installed on the upstream side in the traveling direction of the fiber bundle is the first support member.
  • the fiber bundle supplied from one roller is stably introduced into the fiber bundle inlet of the heating tank.
  • the fiber bundle cannot be stably introduced into the heating tank, causing fiber whitening and yarn breakage.
  • the fiber bundle is located downstream of the center of the heating tank in the direction in which the fiber bundle travels, the fiber bundle vibrates at the time of drawing, causing whitening or breakage of the fiber. It should be located between the center of the tank.
  • the second support which is provided downstream of the first support in the direction of travel of the fiber bundle, discharges the fiber bundle, to which sliding resistance has been imparted by the pressurizing body described later, from the heating tank. This is for stable discharge from the exit.
  • the installation position of the second support depends on the total length of the heating tank and the moving speed of the fiber east, but the first support is also located at a position of 65-55 Omm in the downstream direction in the fiber bundle traveling direction. Is preferred.
  • the position is less than 65 mm, the resistance to covering the fiber bundle becomes too large, and the fiber breaks.
  • the position is more than 550 mm, the fiber bundle expands and deforms into a belt shape. As a result, the fibers are not uniformly heated and whitening of the fibers occurs.
  • Pressurizing The pressurizing body of the resistance applying device, together with the first support and the second support, is cut off. This is for sandwiching a plane-shaped fiber bundle, widening and deforming it into a belt shape, and for imparting sliding resistance to the fiber bundle.
  • the pressing body is 50-degree in the direction downstream of the first supporting member force fiber bundle advancing direction on the plane including the fiber bundle sliding contact surface of the first support and the fiber bundle sliding contact surface of the second support.
  • Position force of 350mm It is desirable to be placed vertically 10-200mm apart.
  • the displacement from the first support in the fiber bundle advancing direction is less than 50 mm, the resistance applied to the fiber bundle becomes too large, and the fiber is likely to be broken. If it is more than 550 mm, the fiber bundle is effective. The band is not widened and deformed, and uniform heating becomes difficult. As a result, the fiber is apt to whiten.
  • the vertical separation distance of the pressurized body from the plane is less than 10 mm, the fiber bundle does not deform into a belt shape, is not uniformly heated, and the fiber is apt to whiten. If the pressure exceeds the limit, the resistance to the fiber bundle becomes too large and the fiber is apt to break, so the vertical distance of the pressurized body from the above plane is preferably 10 to 200 mm.
  • FIGS. 1 and 2 An embodiment of a synthetic fiber drawing apparatus according to the present invention will be described with reference to FIGS. 1 and 2.
  • FIG. 1 is a cross-sectional view schematically showing a main part of a synthetic fiber drawing apparatus (Example 1) according to the present invention.
  • reference numeral 1 denotes a first roller for supplying a fiber bundle 5 of synthetic fibers made of polyvinyl chloride vinyl resin
  • reference numeral 2 denotes a roller that rotates at a higher peripheral speed than the first roller 1.
  • Reference numeral 3 denotes a second roller that stretches the fiber bundle by a peripheral speed difference from the first roller 1, and reference numeral 3 is disposed between the first roller 1 and the second roller 2 to introduce the fiber bundle 5 therein.
  • a hollow box-shaped heating tank 4 for heating and softening (in this example, the total length is 2 m) is shown, and reference numerals 31 and 32 indicate a fiber bundle introduction port and a fiber bundle discharge port of the heating tank 3, respectively.
  • a plurality of supports 41 each capable of heating each fiber (a fiber bundle advance) for heating the fiber bundle 5 and imparting sliding resistance while widening and deforming the fiber bundle 5 in a band shape.
  • the first support installed on the upstream side in the direction, and 4 2 (the second support installed in the downstream direction of the fiber bundle from the first support).
  • a heating / resistance applying device 4 including a heatable pressurizing body 43 provided near the middle between the two supports 41 and 42 is provided.
  • FIG. 2 shows the resistance applying device 4 of Example 1 (both of which are round bars each having a cross-section of a circle having a diameter of 30 mm, made of stainless steel, the first support 41 and the second support 41). 42 and a pressurizing body 43.
  • these heating means are electric heaters incorporated in each of them) and a partial perspective view schematically showing the state of the fiber bundle 5 of synthetic fibers. is there.
  • the arrows in FIGS. 1 and 2 indicate the flow direction of the fiber bundle.
  • FIG. 3 is a model diagram showing a state in which an electric heater is incorporated as a heating means as an example in which the first support can be heated by a supplied current
  • FIG. FIG. 3 is a model diagram showing an example in which heating can be performed by a heating fluid supplied inside.
  • the drawing apparatus of the present invention uses synthetic fibers made of polychlorinated vinyl resin
  • the first support, the second support, and the heating body can be heated to 90 ° C or more and 150 ° C or less. Desirably. If the temperature is lower than 90 ° C, these heating effects are not obtained. On the other hand, if the temperature is higher than 150 ° C, the temperature is too high, and the fibers are melted to cause yarn breakage.
  • the first support, the second support, and the heating element may all be set at the same temperature, or may be set at different temperatures to obtain the best results.
  • the position of 42 and the pressure body 43 can be moved respectively.
  • the first support, the second support, and the pressurizing body can be fixed at desired positions (the distance of the fiber bundle introduction port force and the position in the vertical direction).
  • FIG. 5 which is an enlarged cross-sectional view of the positions of the first support 41, the second support 42, and the pressurizing body 43, that is, the heating / resistance applying device 4 of the heating tank 3, FIG.
  • the distance dl between the fiber bundle introduction port 41 and the first support, and the distance d2, d3 between the first support 41 and the second support are the distance d3 between the first support 41 and the pressing body 43, and 1 Adjust the separation distance of the pressurized body from the plane including the sliding surface of the fiber bundle of the support and the sliding surface of the fiber bundle of the second support (hereinafter also referred to as the “separation distance of the pressed body”), h. The effect on the state of the drawn fiber at that time was examined.
  • a fiber bundle (undrawn yarn) composed of 120 single fibers made of 200 denier and polychlorinated vinyl resin was fed from the first roller 1 into a heating tank 3 heated to 130 ° C. at a speed of 100 m / min. And heated and stretched by a resistance applying device 4 including a first support 41, a second support 42, and a pressurizing body 43, which are heated by a built-in electric heater, and 400 m / min by a second roller. It was pulled at the speed and stretched 4 times. The stretched fiber bundle 100m was visually checked. If none of the whitened fibers was found, it was passed ( ⁇ ), and even if one of the fibers was whitened, it was rejected (X). . In addition, at this time, the case where no thread was broken was judged as pass ( ⁇ ), and the case where even one thread was broken was judged as failed (X). This evaluation is very strict in accordance with the very strict quality control required for artificial hair.
  • Tables 1 and 2 show the results of these experiments.
  • Tables 1 and 2 show the results of these experiments.
  • the distance h of the pressurized body from a plane including the fiber bundle sliding contact surface of the first support and the fiber bundle sliding contact surface of the second support is a positive value.
  • the state in which the first support 41 and the second support 42 are in contact with the fiber bundle from above and the pressing body 43 is in contact with the fiber bundle 5 from below (the state shown in FIG. 1) )
  • the value of the vertical position of the pressing body is a negative value
  • the first support 41 and the second support 42 And the pressing body 43 is in a state of contacting from above.
  • the distance dl between the fiber bundle inlet 41 of the heating tank 3 and the first support is negative, it is determined that the first support is provided outside the Show.
  • Append Distance between first support and second support 400 400 60 600 400 400 400 400 400 400 400 400
  • Tables 1 and 2 show that the stretching apparatus of the present invention can provide fibers suitable for artificial hair without whitening or thread breakage.
  • the present invention it is possible to realize a method and an apparatus for drawing synthetic fibers for artificial hair which can prevent whitening and breakage of fibers even when a fiber bundle composed of 120 or more single fibers is drawn. As a result, the productivity of synthetic fibers for artificial hair could be increased.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

Lorsqu'un faisceau de fibres composé de 120 fibres ou plus est étiré à l'aide d'un appareil d'étirage de fibres synthétiques classique, les fibres, en particulier celles qui se trouvent au centre, ne sont pas suffisamment chauffées et ramollies, ce qui fait qu'elles finissent par blanchir et casser. L'invention concerne un procédé d'étirage de fibres synthétiques qui permet de résoudre ce problème, selon lequel alors qu'un faisceau de fibres en résine synthétique est amené dans de premiers cylindres (1) et est ensuite introduit pour y être étiré dans de seconds cylindres (2) tournant à une vitesse périphérique supérieure à celle des premiers cylindres (1), le faisceau de fibres est amené jusqu'à l'intérieur d'une cuve d'échauffement de type boîte creuse disposée entre les premiers et les seconds cylindres. Dans la cuve d'échauffement, le faisceau de fibres est soumis à un élargissement et il est chauffé par contact.
PCT/JP2004/008457 2003-06-18 2004-06-16 Procede et appareil d'etirage WO2004113600A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005507220A JP4263721B2 (ja) 2003-06-18 2004-06-16 延伸装置

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Application Number Priority Date Filing Date Title
JP2003173233 2003-06-18
JP2003-173233 2003-06-18

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WO2004113600A1 true WO2004113600A1 (fr) 2004-12-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017203235A (ja) * 2016-05-12 2017-11-16 ジャパンコンポジット株式会社 炭素繊維束の開繊装置
CN110042485A (zh) * 2019-05-20 2019-07-23 中国科学院山西煤炭化学研究所 大丝束干燥致密化过程的匀整化装置

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JPS6189317A (ja) * 1984-10-08 1986-05-07 Teijin Ltd 芳香族ポリアミド繊維の製造方法
JPH1088439A (ja) * 1996-09-12 1998-04-07 Kanegafuchi Chem Ind Co Ltd 加撚マルチフィラメント繊維及びそれを用いたマルチフィラメント繊維束、並びにマルチフィラメント繊維束の製造方法
JP2000256936A (ja) * 1999-03-11 2000-09-19 Murata Mach Ltd 糸条加熱装置
JP3274253B2 (ja) * 1993-10-15 2002-04-15 帝人製機株式会社 延伸仮撚装置

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JP3988329B2 (ja) * 1999-08-03 2007-10-10 東レ株式会社 炭素繊維の製造方法
JP2001262429A (ja) * 2000-03-16 2001-09-26 Murata Mach Ltd 糸条加熱処理ロ−ラのヒータ制御装置
JP3678637B2 (ja) * 2000-09-01 2005-08-03 ユニ・チャーム株式会社 連続フィラメントの開繊方法および開繊装置

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JPS6189317A (ja) * 1984-10-08 1986-05-07 Teijin Ltd 芳香族ポリアミド繊維の製造方法
JP3274253B2 (ja) * 1993-10-15 2002-04-15 帝人製機株式会社 延伸仮撚装置
JPH1088439A (ja) * 1996-09-12 1998-04-07 Kanegafuchi Chem Ind Co Ltd 加撚マルチフィラメント繊維及びそれを用いたマルチフィラメント繊維束、並びにマルチフィラメント繊維束の製造方法
JP2000256936A (ja) * 1999-03-11 2000-09-19 Murata Mach Ltd 糸条加熱装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017203235A (ja) * 2016-05-12 2017-11-16 ジャパンコンポジット株式会社 炭素繊維束の開繊装置
CN110042485A (zh) * 2019-05-20 2019-07-23 中国科学院山西煤炭化学研究所 大丝束干燥致密化过程的匀整化装置

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JP4263721B2 (ja) 2009-05-13

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