SPUN-BONDED NONWOVEN FABRIC

To provide a spun-bonded nonwoven fabric that is constituted of raw materials low in environmental load and that can be suitably used in a product on a surface of which printing is applied.SOLUTION: A spun-bonded nonwoven fabric is obtained by bonding webs comprising filaments of a molten material c...

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1. Verfasser: MIWA SHINICHIRO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a spun-bonded nonwoven fabric that is constituted of raw materials low in environmental load and that can be suitably used in a product on a surface of which printing is applied.SOLUTION: A spun-bonded nonwoven fabric is obtained by bonding webs comprising filaments of a molten material comprising a plant-derived polyethylene resin, a petroleum-derived polypropylene resin and a compatibilizer into a sheet shape. The filaments have a fineness of 0.5 to 10 denier. An elongation in a flow direction (MD direction) of the nonwoven fabric as measured by a method according to JIS L1913(2010) is in a ratio of 90% to 20% compared with an elongation in a flow direction (MD direction) of a spun-bonded nonwoven fabric formed of filaments of the petroleum-derived polypropylene resin alone. A spun-bonded nonwoven fabric obtained by bonding webs comprising filaments forming a core-sheath structure into a sheet shape. One of a core part and a sheath part of the core-sheath structure is composed of a plant-derived polyolefin resin and the other is composed of a petroleum-derived polyolefin resin.SELECTED DRAWING: None 【課題】環境負荷が低い原料で構成されているのに加えて、表面に印刷が施される製品に好適に使用できるスパンボンド不織布を提供すること。【解決手段】植物由来ポリエチレン樹脂、石油由来ポリプロピレン樹脂及び相溶化剤を含む溶融物の長繊維からなるウェブをシート状に結合してなるスパンボンド不織布であって、前記長繊維は、繊度0.5乃至10デニールであり、そしてJIS L1913(2010年版)に準拠する方法で測定される前記不織布の流れ方向(MD方向)の伸び率は、石油由来ポリプロピレン樹脂単独の長繊維から作られたスパンボンド不織布の流れ方向(MD方向)の伸び率と比較して90%乃至20%の割合である、スパンボンド不織布。芯鞘構造を成す長繊維からなるウェブをシート状に結合してなり、該芯鞘構造の芯部又は鞘部の一方が植物由来ポリオレフィン樹脂からなり、また他方が石油由来ポリオレフィン樹脂からなるスパンボンド不織布。【選択図】なし