A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
NON-WOVEN FABRIC ROLL AND MANUFACTURING METHOD THEREOF
To provide a non-woven fabric roll that has a smooth surface, is free from wrinkles when rolled up in a broad-line, and is superior in a laminate property with a film.SOLUTION: A non-woven fabric roll of the present invention is the non-woven fabric formed by that a filament nonwoven fabric comprising fibers containing thermoplastic resin as a main component is rolled up into a roll. In the non-woven fabric roll, an apparent density of the filament nonwoven fabric is 0.40 g/cm3 or more and 0.85 g/cm of3 or less, and the rolling hardness of the non-woven fabric roll is 23.0 g or more and 50.0 g or less, and the following expression (1) is satisfied. H<1.97×10-5×((L×W)/S)-5.3...(1) Where, H is the maximum value (g) of the hardness difference of adjacent 2-measurement values when measuring the hardness by rolling every 5 cm in the width direction of the non-woven fabric roll, S is the average value (m2) of both ends cross section in the vertical direction to the width of the non-woven fabric roll, L is the rolling length (m) of the non-woven fabric roll, and W is the basis weight (g/m2) of the filament nonwoven fabric.SELECTED DRAWING: None
【課題】 本発明は、表面が平滑で、広幅で巻き取った際にもシワもなくフィルムとの貼り合わせ性にも優れる不織布ロールを提供する。【解決手段】本発明の不織布ロールは、熱可塑性樹脂を主成分とする繊維からなる長繊維不織布がロール状に巻き取られてなる不織布ロールであって、前記長繊維不織布の見掛け密度が０．４０ｇ／ｃｍ３以上０．８５ｇ／ｃｍ３以下であり、前記不織布ロールの巻き硬度が２３．０ｇ以上５０．０ｇ以下で、かつ以下の式（１）を満たす不織布ロールである。Ｈ＜１．９７×１０－５×（（Ｌ×Ｗ）／Ｓ）－５．３・・・（１）ここで、Ｈは不織布ロールの幅方向に５ｃｍ間隔で巻き硬度を測定した際の隣接する２つの測定値の硬度差の最大値（ｇ）、Ｓは不織布ロールの幅に対する垂直方向の両端部断面積の平均値（ｍ２）、Ｌは不織布ロールの巻き長（ｍ）、Ｗは長繊維不織布の目付（ｇ／ｍ２）【選択図】なし
NON-WOVEN FABRIC ROLL AND MANUFACTURING METHOD THEREOF
To provide a non-woven fabric roll that has a smooth surface, is free from wrinkles when rolled up in a broad-line, and is superior in a laminate property with a film.SOLUTION: A non-woven fabric roll of the present invention is the non-woven fabric formed by that a filament nonwoven fabric comprising fibers containing thermoplastic resin as a main component is rolled up into a roll. In the non-woven fabric roll, an apparent density of the filament nonwoven fabric is 0.40 g/cm3 or more and 0.85 g/cm of3 or less, and the rolling hardness of the non-woven fabric roll is 23.0 g or more and 50.0 g or less, and the following expression (1) is satisfied. H<1.97×10-5×((L×W)/S)-5.3...(1) Where, H is the maximum value (g) of the hardness difference of adjacent 2-measurement values when measuring the hardness by rolling every 5 cm in the width direction of the non-woven fabric roll, S is the average value (m2) of both ends cross section in the vertical direction to the width of the non-woven fabric roll, L is the rolling length (m) of the non-woven fabric roll, and W is the basis weight (g/m2) of the filament nonwoven fabric.SELECTED DRAWING: None
【課題】 本発明は、表面が平滑で、広幅で巻き取った際にもシワもなくフィルムとの貼り合わせ性にも優れる不織布ロールを提供する。【解決手段】本発明の不織布ロールは、熱可塑性樹脂を主成分とする繊維からなる長繊維不織布がロール状に巻き取られてなる不織布ロールであって、前記長繊維不織布の見掛け密度が０．４０ｇ／ｃｍ３以上０．８５ｇ／ｃｍ３以下であり、前記不織布ロールの巻き硬度が２３．０ｇ以上５０．０ｇ以下で、かつ以下の式（１）を満たす不織布ロールである。Ｈ＜１．９７×１０－５×（（Ｌ×Ｗ）／Ｓ）－５．３・・・（１）ここで、Ｈは不織布ロールの幅方向に５ｃｍ間隔で巻き硬度を測定した際の隣接する２つの測定値の硬度差の最大値（ｇ）、Ｓは不織布ロールの幅に対する垂直方向の両端部断面積の平均値（ｍ２）、Ｌは不織布ロールの巻き長（ｍ）、Ｗは長繊維不織布の目付（ｇ／ｍ２）【選択図】なし
NON-WOVEN FABRIC ROLL AND MANUFACTURING METHOD THEREOF
不織布ロールおよびその製造方法
IKEJIRI YUKI (author) / MATSUURA HIROYUKI (author) / IKUNO TAKAYOSHI (author)
2023-10-13
Patent
Electronic Resource
Japanese
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