JP6721781B2 - 高強度繊維製造用の紡糸ノズル装置 - Google Patents
高強度繊維製造用の紡糸ノズル装置 Download PDFInfo
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Description
<実施例1〜2>第1の実施形態に係る紡糸ノズル装置による高強度PET繊維の製造
第1の実施形態に係る紡糸ノズル装置を用いた局部高温加熱方式を行うが、表1に示すように、PET樹脂の固有粘度を異ならせ、下記の低速紡糸及びオフライン延伸を行い、高強度PET繊維を製造した。
−使用樹脂:実施例1:PET(I.V.0.65)、実施例2:PET(I.V.1.20)
−紡糸温度(ノズル温度):280〜300℃
−紡糸ノズル孔の直径:Φ0.5
−紡糸ノズル孔当たりの吐出量:3.3g/min
−ノズルの局部加熱ヒータ温度:パックボディ温度+100℃以上
−紡糸速度:1km/min
(2)オフライン延伸条件
−未延伸糸:前記紡糸条件から得られたPETas−spun繊維
−1stゴデットロールの速度(温度):10m/min(85℃)
−延伸段数:3段以上
−糸切れ無しに連続して延伸可能な最大延伸比における延伸糸のサンプリングを実施(熱固定温度130〜180℃)
第2の実施形態に係る紡糸ノズル装置を用いた局部高温加熱方式を行うが、表2に示すように、局部加熱温度を異ならせ、下記の低速紡糸及びオフライン延伸を行い、高強度PET繊維を製造した。
−使用樹脂:PET(I.V.1.20)
−紡糸温度(ノズル温度):280〜300℃
−紡糸ノズル孔の直径:Φ0.5
−紡糸ノズル孔当たりの吐出量:3.3g/min
−ノズルの局部加熱ヒータ温度:パックボディ温度+100〜150℃以上
−紡糸速度:1km/min
(2)オフライン延伸条件
−未延伸糸:前記紡糸条件から得られたPETas−spun繊維
−1stゴデットロールの速度(温度):10m/min(85℃)
−延伸段数:3段以上
−糸切れ無しに連続して延伸可能な最大延伸比における延伸糸のサンプリングを実施(熱固定温度130〜180℃)
第3の実施形態に係る紡糸ノズル装置を用いた局部高温加熱方式を行うが、下記の工程条件で行い、高強度PET繊維を製造した。
−使用樹脂:PET(I.V.1.21)
−紡糸温度(ノズル温度):300℃
−紡糸ノズル孔当たりの吐出量:4g/min
−紡糸速度:1km/min
−加熱体温度:400℃以上
(2)物性分析の結果
加熱体46のオフ状態で得られたPET繊維の強度230MPa及び伸度435%に対して、加熱体46のオン状態で得られたPET繊維の強度231MPa及び伸度455%であり、強度は類似した範囲であるものの、伸度が4.6%増加して延伸性(Toughness)が増加した。
第4の実施形態に係る紡糸ノズル装置を用いた局部高温加熱方式を行うが、下記の工程条件で行い、高強度PET繊維を製造した。
−使用樹脂:PET(I.V.1.21)
−紡糸温度(ノズル温度):300℃
−紡糸ノズル孔当たりの吐出量:4g/min
−紡糸速度:1km/min
−加熱体温度:400℃以上
(2)物性分析の結果
加熱体56のオフ状態で得られたPET繊維の強度210MPa及び伸度485%に対して、加熱体56のオン状態で得られたPET繊維の強度211MPa及び伸度520%であり、強度は類似した範囲であるものの、伸度が7.2%増加して延伸性が増加した。
第4の実施形態に係る紡糸ノズル装置を用いた局部高温加熱方式を行うが、下記の工程条件として、低速紡糸の直後、インライン延伸を行うことを除いては、前記実施例6と同様にしてPET繊維を製造した。
−ノズル胴体温度:300℃
−紡糸ノズル孔当たりの吐出量:4g/min
−加熱体温度:400℃以上
−1stロールの速度及び温度:1000m/min及び85℃
−2ndロールの速度及び温度:4000m/min及び130℃
−巻取速度:3,960m/min
(2)物性分析の結果
加熱体56のオフ状態で得られたPET繊維の強度1180MPa及び伸度11.0%に対して、加熱体56のオン状態で得られたPET繊維の強度1175MPa及び伸度13.8%であり、強度は類似した範囲であるものの、伸度が25%増加して延伸性が増加した。
22、32、42、52 パックボディヒータ
23、33、43、53 紡糸ノズル
23a、33a、43a、53a 紡糸ノズル孔
23b 固定部
23c 紡糸部
23d 延長部
24、34、44、54 分配板
25、35、45、55 小流板
35a、35b 第1小流板、第2小流板
26、36、46、56 加熱体
46a、46b、46c、56a、56b、56c 加熱孔
27、37 空間部
28 空気流通孔
38 雌ねじ部
39 雄ねじ部
40 断熱材層
F 繊維
Claims (4)
- パックボディ(21)と、前記パックボディの外側に設けられ、パックボディに熱源を提供するパックボディヒータ(22)と、前記パックボディ(21)に設けられ、溶融状態の熱可塑性樹脂を紡糸する紡糸ノズル(23)と、前記パックボディ内に設けられ、溶融状態の熱可塑性樹脂を紡糸ノズルに流入させるための分配板(24)及び小流板(25)と、を備え、
前記紡糸ノズル(23)が、パックボディ(21)の内部に位置する固定部(23b)と、パックボディ(21)の外部に位置する紡糸部(23c)と、からなり、
前記パックボディの外部に位置した紡糸部(23c)には、多数個の紡糸ノズル孔(23a)が形成され、熱可塑性樹脂が溶融紡糸されて繊維が形成され、
前記紡糸部(23c)の紡糸ノズル孔(23a)部分をパックボディ(21)の温度よりも高温で加熱するための加熱体(26)を備え、
前記紡糸ノズル(23)が、固定部(23b)と紡糸部(23c)との間を離隔させるための延長部(23d)を有し、
前記紡糸ノズルの固定部(23b)及び延長部(23d)の内側壁と、これに対向する小流板(25)の外側壁との間には、空間部(27)が形成され、紡糸ノズルの延長部(23d)には、前記空間部(27)と外部を連通させる空気流通孔(28)が形成されたことを特徴とする高強度繊維製造用の紡糸ノズル装置。 - 前記紡糸ノズルの延長部(23d)は、パックボディ(21)の下端から10〜500mm延長形成され、紡糸部(23c)に形成された紡糸ノズル孔(23a)がパックボディの外部に位置されることを特徴とする請求項1に記載の高強度繊維製造用の紡糸ノズル装置。
- 前記加熱体(26)が、紡糸部(23c)の側壁周りを取り囲んでリング状で設けられたことを特徴とする請求項1に記載の高強度繊維製造用の紡糸ノズル装置。
- 前記小流板(25)の下部が、紡糸ノズル(23)内に挿入され、前記小流板(25)の下部が、紡糸ノズル(23)の延長部(23d)と紡糸部(23c)の境界地点までに延長され、溶融状態の熱可塑性樹脂が紡糸ノズル孔(23a)の入口までに誘導されることを特徴とする請求項1に記載の高強度繊維製造用の紡糸ノズル装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2016-0054007 | 2016-05-02 | ||
KR1020160054007A KR101798529B1 (ko) | 2016-05-02 | 2016-05-02 | 고강도 섬유 제조용 방사노즐장치 |
PCT/KR2017/004337 WO2017191916A1 (ko) | 2016-05-02 | 2017-04-24 | 고강도 섬유 제조용 방사노즐장치 |
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JP2019516027A JP2019516027A (ja) | 2019-06-13 |
JP6721781B2 true JP6721781B2 (ja) | 2020-07-15 |
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NL251774A (ja) * | 1959-05-25 | 1900-01-01 | ||
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JPS63159510A (ja) * | 1986-12-17 | 1988-07-02 | Teijin Ltd | 溶融紡糸方法 |
SG50447A1 (en) * | 1993-06-24 | 1998-07-20 | Hercules Inc | Skin-core high thermal bond strength fiber on melt spin system |
DE19626051C2 (de) * | 1995-08-16 | 1998-04-30 | Inventa Ag | Spinndüsenplatte mit integrierter Wärmeisolierung |
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JP2003027327A (ja) | 2001-07-16 | 2003-01-29 | Mitsubishi Rayon Co Ltd | プラスチックファイバの紡糸装置および製造方法 |
JP3774810B2 (ja) | 2002-05-30 | 2006-05-17 | 株式会社化繊ノズル製作所 | 紡糸口金パックの製造方法 |
KR100631749B1 (ko) | 2005-08-05 | 2006-10-09 | 주식회사 코오롱 | 고분자용 방사팩 장치, 이를 이용한 산업용 고강력사의제조방법, 및 이로부터 제조되는 산업용 고강력사 |
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JP2010111977A (ja) * | 2008-11-07 | 2010-05-20 | Teijin Fibers Ltd | 溶融紡糸口金パック |
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DE102011117458A1 (de) * | 2011-11-02 | 2013-05-02 | Oerlikon Textile Gmbh & Co. Kg | Vorrichtung zum Schmelzspinnen und Abkühlen von synthetischen Filamenten |
JP2015117447A (ja) * | 2013-12-19 | 2015-06-25 | Tmtマシナリー株式会社 | 紡糸パック、紡糸パックの製造方法、及び、紡糸パックの改造方法 |
KR101632636B1 (ko) * | 2015-03-09 | 2016-06-23 | 한국생산기술연구원 | 고강도 폴리에스테르사의 제조방법 |
US10422052B2 (en) * | 2015-03-09 | 2019-09-24 | Korea Institute Of Industrial Technology | Method of manufacturing high strength synthetic fibers |
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WO2017191916A1 (ko) | 2017-11-09 |
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JP2019516027A (ja) | 2019-06-13 |
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