JP2015078473A - 不織布及び強化積層体 - Google Patents
不織布及び強化積層体 Download PDFInfo
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Abstract
Description
また、本発明の強化積層体は、前記不織布を被強化体に積層し、補強材として用いた、ことを特徴とする。
[第1の実施形態]
図1は、本発明の第1の実施形態に係る不織布を示している。不織布1は、スプリットウェブ2の配向軸2aとスリットウェブ3の配向軸3aとが互いに交差するように経緯積層されて形成されている。そして、隣接するスプリットウェブ2とスリットウェブ3の接触部位同士が面接着で接合されている。
次に、図1乃至図3に示した不織布1の製造方法について、図4及び図5により説明する。図4は、スプリットウェブ2の製造工程の概略を示している。また、図5はスプリットウェブ2にスリットウェブ3を積層して不織布1を製造する工程の概略を示している。
図8は、上述した第1の実施形態の変形例について説明するためのもので、他の製造方法を示している。この不織布は、図2に示したスプリットウェブ2を2枚積層したものである。図8において、図4に示したようにして製造した縦ウェブ(スプリットウェブ2−1)を、原反繰出しロール30から繰出し、所定の供給速度で走行させて拡幅工程31に送り、拡幅機(図示せず)により数倍に拡幅し、必要により熱処理を行う。
上記第1の実施形態及び変形例1では、一軸配向体がスプリットウェブ2とスリットウェブ3を経緯積層する場合について説明したが、一軸配向テープを平行に並べたものを2組積層して形成しても良い。この場合には、一方の組の一軸配向テープの配向軸と他方の組の一軸配向テープの配向軸とが互いに直交するように経緯積層する。一軸配向テープは、スプリットウェブ2及びスリットウェブ3と同様に、熱可塑性樹脂層の両面に、この熱可塑性樹脂より融点が低い第1、第2の接着層(熱可塑性樹脂)を積層した3層のフィルムを、縦又は横方向に一軸配向させ、裁断して多層の延伸テープとしたものを用いる。
上述した第1の実施形態及び第1、第2の変形例では、不織布を単体で用いる場合について説明したが、本第2の実施形態は、上述した不織布を補強材として用い、強化積層体とするものである。第1の実施形態に係る不織布は、柔軟性が高く、しなやかで被強化体の表面形状に対する追従性(凹凸追従性)が良いことから、従来は困難であった立体的な形状を有する被強化体、例えば表面に凹凸があるウレタンの補強用等に積層することができる。平面以外の形状であっても追従でき、様々な被強化体の補強用に適用可能である。
2…スプリットウェブ
2a…配向軸
3…スリットウェブ
3a…配向軸
4…幹繊維
5…枝繊維
6,6’…熱可塑性樹脂層
7−1,7−1’…接着層
7−2,7−2’…接着層
Claims (3)
- 熱可塑性樹脂層と、該熱可塑性樹脂層の両面に積層され、該熱可塑性樹脂より融点が低い第1、第2の接着層とを含む一軸配向体を、配向軸が交差するように各々の前記第1または第2の接着層を介して経緯積層してなる網状の不織布であって、
目付が5〜13g/m2で、前記一軸配向体における前記第1の接着層、前記熱可塑性樹脂層及び前記第2の接着層の層構成比が20/60/20〜30/40/30であり、前記不織布の長手方向及び幅方向のカンチレバー法による剛軟度の平均値を50mm以下にした、ことを特徴とする不織布。 - 前記熱可塑性樹脂層が高密度ポリチレン、前記第1、第2の接着層がそれぞれ低密度ポリエチレンを含む、ことを特徴とする請求項1に記載の不織布。
- 請求項1または2に記載の不織布を被強化体に積層し、補強材として用いた、ことを特徴とする強化積層体。
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JP2013217739A JP5986975B2 (ja) | 2013-10-18 | 2013-10-18 | 不織布及び強化積層体 |
CN201480056905.9A CN105682915B (zh) | 2013-10-18 | 2014-10-07 | 无纺布和强化层叠体 |
EP14854691.4A EP3059080A1 (en) | 2013-10-18 | 2014-10-07 | Nonwoven fabric and reinforcing laminate |
US15/029,948 US10525661B2 (en) | 2013-10-18 | 2014-10-07 | Nonwoven fabric and reinforcing laminate |
KR1020167013000A KR20160074572A (ko) | 2013-10-18 | 2014-10-07 | 부직포 및 강화 적층체 |
PCT/JP2014/076836 WO2015056607A1 (ja) | 2013-10-18 | 2014-10-07 | 不織布及び強化積層体 |
TW103135445A TWI616570B (zh) | 2013-10-18 | 2014-10-14 | 不織布及強化積層體 |
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JP2017002428A (ja) * | 2015-06-10 | 2017-01-05 | Jxエネルギー株式会社 | 網状構造体 |
JP2017177713A (ja) * | 2016-03-31 | 2017-10-05 | Jxtgエネルギー株式会社 | シート材及びこのシート材を用いたアルコール蒸散剤包材 |
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US10101773B2 (en) * | 2016-04-08 | 2018-10-16 | Microsoft Technology Licensing, Llc | Non-woven material device covering |
JP6845005B2 (ja) | 2016-12-27 | 2021-03-17 | Eneos株式会社 | 粘着テープ |
EP4161769A1 (en) * | 2020-06-08 | 2023-04-12 | Teijin Aramid B.V. | Textile structure |
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CN105682915A (zh) | 2016-06-15 |
EP3059080A1 (en) | 2016-08-24 |
KR20160074572A (ko) | 2016-06-28 |
US10525661B2 (en) | 2020-01-07 |
CN105682915B (zh) | 2017-11-10 |
TWI616570B (zh) | 2018-03-01 |
WO2015056607A1 (ja) | 2015-04-23 |
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