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Preparation of microfibers by using a carbon dioxide laser and analysis of superstructure for obtained microfibers

Research Project

Project/Area Number 15350131
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Polymer/Textile materials
Research InstitutionUniversity of Yamanashi

Principal Investigator

SUZUKI Akihiro  University of Yamanashi, Department of Research Interdisciplinary Graduate School of Medicine and Engineering, Professor, 大学院・医学工学総合研究部, 教授 (70216357)

Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥13,900,000 (Direct Cost: ¥13,900,000)
Fiscal Year 2004: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 2003: ¥11,500,000 (Direct Cost: ¥11,500,000)
KeywordsMicrofiber / Carbon dioxide CO_2 laser-thinning / Nonwoven fabric / Poly(ethylene terephthalate) / Poly(L-lactic acid) / Poly(glycolic acid) / Zone-drawing and zone-annealing / High-modulus and high strength / ポログリコール酸 / 極細繊維 / 炭酸ガスレーザー / ポリエチレンテレフタレート / ポリ乳酸繊維 / ナイロン6 / イソタクトポリプロピレン / アラミド繊維
Research Abstract

We succeeded in producing microfibers, such as poly(ethylene terephthalate) (PET), nylon 6, isotactic polypropylene (i-PP), poly(L-lactic acid) (PLLA), and poly(glycolic acid) fibers, by a continuous thinning method using a carbon dioxide (CO_2) laser. A laser-thinning apparatus to continuously prepare the microfiber was developed in our laboratory and consists of fiber supplying and winding spools, a continuous wave CO_2 laser emitter, a supplying system of fibers, and a traverse. The laser-thinning apparatus could produce the microfiber in the range of 100 m・min^<-1> to 2,500 m・min^<-1>. The diameter of the laser-thinned microfiber decreased with increasing a winding speed, and its birefringence increased with increasing the winding one. When the nylon 6 microfiber obtained by irradiating the laser operated at a power density of 19.8 W・cm^<-2> to the undrawn nylon 6 fiber supplied at 0.32 m・min^<-1> was wound up at 848 m・min^<-1>, the obtained microfiber had a diameter of 3.2 μm and … More a birefringence of 47 x 10^<-3>. The draw ratio calculated from the supplying and the winding speeds was 2650 times. The SEM showed that the microfiber obtained by the laser-thinning apparatus had a smooth surface without a surface roughened by a laser-ablation and is uniform in diameter. The developed apparatus could more easily produce the microfiber when compared with the conventional technology such as a conjugate spinning, an islands-in-a-sea type fiber spinning, a melt blowing, and a flash spinning.
A zone-drawing and zone-annealing method was applied to the PET microfiber obtained by using the CO_2 laser-thinning in order to develop its mechanical properties. The microfiber used for the zone-drawing and the zone-annealing was prepared by winding at 1,386 m/min the microfiber that was obtained by irradiating the laser at 18.1 W/cm^2 and had a diameter of 2.8 μm and a birefringence of 0.097. The zone-drawing was carried out at a drawing temperature of 105 ℃ under an applied tension of 53 MPa, and the zone-annealing at 155 ℃ under 195 MPa. The zone-drawing and the zone-annealing were carried out at a treating speed of 0.21 m/min. The zone-annealed microfiber finally obtained had a diameter of 2 μm, a birefringence of 0.234, a tensile modulus of 17.9 GPa, and a tensile strength of 1.1 GPa.
The CO_2 laser-thinning method was applied to PET fiber to produce web formed by PET microfiber. The apparatus used for the preparation of microfiber web consists of fiber supplying spool, a continuous wave CO_2 laser emitter, air gun, and a net conveyor to collect the microfiber web. The diameter of microfiber web was depended on a supplying speed the air supply to the air gun, and laser power. Nonwoven fabrics were obtained by heating the collected microfiber web at 190 ℃ under constant length and obtained nonwovens were formed by continuous filament with a uniform diameter. Less

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (43 results)

All 2005 2004 2003 Other

All Journal Article (21 results) Book (4 results) Patent(Industrial Property Rights) (12 results) Publications (6 results)

  • [Journal Article] Isotactic polypropylene microfiber prepared by continuous laser-thinning method2005

    • Author(s)
      Akihiro Suzuki, Shinichi Narisue
    • Journal Title

      J Appl.Polym.Sci. (in press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Isotactic polypropylene microfiber prepared by continuous laser-thinning method2005

    • Author(s)
      Akihiro Suzuki, Shinichi Narisue
    • Journal Title

      J.Appl.Polym.Sci. (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Isotactic polypropylene microfiber prepared by continuous laser-thinning method2005

    • Author(s)
      Akihiro Suzuki, Shinichi Narisue
    • Journal Title

      J.Appl.Polym.Sci. in press

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Nylon 6 microfiber prepared by carbon dioxide laser heating2004

    • Author(s)
      A.Suzuki, K.Kamata
    • Journal Title

      J.Appl.Polym.Sci. 92

      Pages: 1449-1453

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Nylon 6 microfiber obtained by a continuous-thinning method with a carbon dioxide laser2004

    • Author(s)
      A.Suzuki, K.Kamata
    • Journal Title

      J.Appl.Polym.Sci. 92

      Pages: 1454-1458

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Isotactic polypropylene microfiber prepared by carbon dioxide laser-heating2004

    • Author(s)
      A.Suzuki, S.Narusue
    • Journal Title

      J.Appl.Polym.Sci. 92

      Pages: 1534-1539

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Zone-drawing and zone-annealing of poly(ethylene terephthalate) microfiber prepared by CO_2 laser-thinning2004

    • Author(s)
      A.Suzuki, T.Okano
    • Journal Title

      J.Appl.Polym.Sci. 92

      Pages: 2989-2994

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Microthermal analysis of the melting behavior in zone-drawn isotactic polypropylene fiber2004

    • Author(s)
      Jiping Ye, Toshinori Hasegawa, Akihiro Suzuki
    • Journal Title

      J Polym.Sci.: Part B 42

      Pages: 3677-3681

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Nylon 6 Microfiber prepared by carbon dioxide laser heating2004

    • Author(s)
      Akihiro Suzuki, Kori Kamata
    • Journal Title

      J.Appl.Polym.Sci. Vol.92

      Pages: 1449-1453

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Nylon 6 microfber obtained by a continuous-thinning method with a carbon dioxide laser2004

    • Author(s)
      Akihiro Suzuki, Kori Kamata
    • Journal Title

      J.Appl.Polym.Sci. Vol.92

      Pages: 1454-1458

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Isotactic polypropylene microfber prepared by carbon dioxide laser-heating2004

    • Author(s)
      Akihiro Suzuki, Shinichi Narusue
    • Journal Title

      J.Appl.Polym.Sci. Vol.92

      Pages: 1534-1539

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Zone-drawing and zone-annealing of poly(ethylene terephthalate) microfiber prepared by CO_2 laser-thinning2004

    • Author(s)
      A.Suzuki, T.Okano
    • Journal Title

      J.Appl.Polym.Sci. Vol.92

      Pages: 2989-2994

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Microthermal analysis of the melting behavior in zone-drawn isotactic polypropylene fiber2004

    • Author(s)
      Jiping Ye, Toshinori Hasegawa, Akihiro Suzuki
    • Journal Title

      J.Appl.Polym.Sci. : Part B Vol.42

      Pages: 3677-3681

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Nylon 6 Microfiber Prepared by Carbon Dioxide Laser Heating2004

    • Author(s)
      Akihiro Suzuki, Kori Kamata
    • Journal Title

      J.Appl.Polym.Sci. 92

      Pages: 1449-1453

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Isotactic Polypropylene Microfiber Prepared by Carbon Dioxide Laser-Heating2004

    • Author(s)
      Akihiro Suzuki, Shinichi Narusue
    • Journal Title

      J.Appl.Polym.Sci. 92

      Pages: 1534-1539

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Nylon 6 Microfiber Obtained by a Continuous-Thinning Method with a Carbon Dioxide Laser2004

    • Author(s)
      Akihiro Suzuki, Kori Kamata
    • Journal Title

      J.Appl.Polym.Sci. 92

      Pages: 1454-1458

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Microthermal analysis of the melting behavior in zone-drawn isotactic polypropylene fiber2004

    • Author(s)
      Jiping Ye, Toshinori Hasegawa, Akihiro Suzuki
    • Journal Title

      J.Polym.Sci: Part B 42

      Pages: 3677-3681

    • Related Report
      2004 Annual Research Report
  • [Journal Article] PET microfiber prepared by carbon dioxide laser heating2003

    • Author(s)
      A.Suzuki, N.Mochizuki
    • Journal Title

      J.Appl.Polym.Sci. 88

      Pages: 3279-3283

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Mechanical properties and microstructure of poly(ethylene terephthalate) microfiber prepared by carbon dioxide heating2003

    • Author(s)
      A.Suzuki, N.Mochizuki
    • Journal Title

      J.Appl.Polym.Sci. 90

      Pages: 1955-1958

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] PET microfiber prepared by carbon dioxide laser-heating2003

    • Author(s)
      Akihiro Suzuki, Noriaki Mochiduki
    • Journal Title

      J.Appl.Polym.Sci. Vol.88

      Pages: 3279-3283

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Mechanical properties and microstructure of poly(ethylene terephthalate) microfiber prepared by carbon dioxide laser heating2003

    • Author(s)
      Akihiro Suzuki, Noriaki Mochizuki
    • Journal Title

      J.Appl.Polym.Sci. Vol.90

      Pages: 1955-1958

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Book] ナノファイバーテクノロジーを用いた高度産業発掘戦略2004

    • Author(s)
      本宮達也, 鈴木章泰 他58名
    • Total Pages
      457
    • Publisher
      シーエムシー出版
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Book] 高分子熱物性・熱分析ノウハウ集2004

    • Author(s)
      吉田博久, 鈴木章泰 他35名
    • Total Pages
      311
    • Publisher
      技術情報協会
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Book] ナノファイバーテクノロジーを用いた高度産業発掘戦略2004

    • Author(s)
      本宮達也, 鈴木章泰, 他58名
    • Total Pages
      457
    • Publisher
      シーエムシー出版
    • Related Report
      2004 Annual Research Report
  • [Book] 高分子熱物性・熱分析ノウハウ集2004

    • Author(s)
      吉田博久, 鈴木章泰, 他35名
    • Total Pages
      311
    • Publisher
      技術情報協会
    • Related Report
      2004 Annual Research Report
  • [Patent(Industrial Property Rights)] 配向を向上させた延伸フィラメントおよび極細繊維不織布の製造手段2005

    • Inventor(s)
      鈴木 章泰
    • Industrial Property Rights Holder
      (株)山梨TLO
    • Industrial Property Number
      2005-039452
    • Filing Date
      2005-02-16
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 延伸された極細生分解性フィラメント2005

    • Inventor(s)
      鈴木 章泰
    • Industrial Property Rights Holder
      (株)山梨TLO
    • Filing Date
      2005-02-22
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 高倍率で高物性のフィラメントの製造方法及び製造装置2005

    • Inventor(s)
      鈴木 章泰
    • Industrial Property Rights Holder
      (株)山梨TLO
    • Industrial Property Number
      2005-069341
    • Filing Date
      2005-03-11
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 延伸された全芳香族ポリエステルフィラメントおよびその製造方法及び製造装置2005

    • Inventor(s)
      鈴木 章泰
    • Industrial Property Rights Holder
      (株)山梨TLO
    • Industrial Property Number
      2005-069350
    • Filing Date
      2005-03-11
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 配向を向上させた延伸フィラメントおよび極細不織布の製造手段2005

    • Inventor(s)
      鈴木章泰
    • Industrial Property Rights Holder
      山梨TLO
    • Industrial Property Number
      2005-039452
    • Filing Date
      2005-02-16
    • Related Report
      2004 Annual Research Report
  • [Patent(Industrial Property Rights)] 延伸された極細生分解性フィラメント2005

    • Inventor(s)
      鈴木章泰
    • Industrial Property Rights Holder
      山梨TLO
    • Filing Date
      2005-02-22
    • Related Report
      2004 Annual Research Report
  • [Patent(Industrial Property Rights)] 高倍率で高物性のフィラメント製造方法及び製造装置2005

    • Inventor(s)
      鈴木章泰
    • Industrial Property Rights Holder
      (株)山梨TLO
    • Industrial Property Number
      2005-069341
    • Filing Date
      2005-03-11
    • Related Report
      2004 Annual Research Report
  • [Patent(Industrial Property Rights)] 延伸された全芳香族ポリエステルフィラメントおよびその製造方法及び製造装置2005

    • Inventor(s)
      鈴木章泰
    • Industrial Property Rights Holder
      (株)山梨TLO
    • Industrial Property Number
      2005-069350
    • Filing Date
      2005-03-11
    • Related Report
      2004 Annual Research Report
  • [Patent(Industrial Property Rights)] 延伸されたフィラメントの製造方法およびその製造装置および高度に分子配向した極細フィラメント2004

    • Inventor(s)
      鈴木 章泰
    • Industrial Property Rights Holder
      (株)山梨TLO
    • Acquisition Date
      2004-03-19
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 延伸された生分解性フィラメントの製造方法およびその製造装置および極細生分解性フィラメント2004

    • Inventor(s)
      鈴木 章泰
    • Industrial Property Rights Holder
      (株)山梨TLO
    • Industrial Property Number
      2004-052377
    • Filing Date
      2004-02-26
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 延伸された芯鞘型フィラメント2004

    • Inventor(s)
      鈴木 章泰
    • Industrial Property Rights Holder
      (株)山梨TLO
    • Filing Date
      2004-03-05
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 延伸されたアラミドフィラメントおよび製造方法および製造装置2004

    • Inventor(s)
      鈴木 章泰
    • Industrial Property Rights Holder
      (株)山梨TLO
    • Industrial Property Number
      2004-052571
    • Filing Date
      2004-04-30
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] A.Suzuki, N.Mochizuki: "PET Microfiber Prepared by Carbon Dioxide Laser Heating"J.Appl.Polym.Sci.. 88. 2379-2383 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] A.Suzuki, N.Mochizuki: "Mechanical Properties and Microstructure of Poly(ethyleneterephthalate) Microfiber Prepared by Carbon Dioxide"J.Appl.Polym.Sci.. 90. 2379-2383 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] A.Suzuki, K.Kamata: "Nylon 6 Microfiber Prepared by Carbon Dioxide Laser Heating"J.Appl.Polym.Sci.. 92. 1449-1453 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] A.Suzuki, K.Kamata: "Nylon 6 Microfiber Obtained by a Continuous-Thinning Method with a Carbon Dioxide Laser"J.Appl.Polym.Sci.. 92. 1454-1458 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] A.Suzuki, S.Narusue: "Isotactic Polypropylene Microfiber Prepared by Carbon Dioxide Laser-Heating"J.Appl.Polym.Sci.. 92. 1534-1539 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] A.Suzuki, T.Okano: "Zone-drawing and zone-annealing of poly(ethylene terephthalate)microfiber prepared by CO_2 laser-thinning"J.Appl.Polym.Sci.. 92. 2989-2994 (2004)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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