首页> 外国专利> NON-WOVEN FABRIC FOR SOUND-ABSORBING MATERIAL, SOUND-ABSORBING MATERIAL, AND METHOD FOR PRODUCING NON-WOVEN FABRIC FOR SOUND-ABSORBING MATERIAL

NON-WOVEN FABRIC FOR SOUND-ABSORBING MATERIAL, SOUND-ABSORBING MATERIAL, AND METHOD FOR PRODUCING NON-WOVEN FABRIC FOR SOUND-ABSORBING MATERIAL

机译：吸声材料的非织造织物，吸声材料以及制造吸声材料的非织造织物的方法

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摘要

The present invention addresses the problem of providing: a non-woven fabric for a sound-absorbing material having excellent sound absorption performance in low-frequency and high-frequency ranges, excellent productivity, and excellent quality; a sound-absorbing material; and a method for producing a non-woven fabric for a sound-absorbing material. This non-woven fabric for a sound-absorbing material contains: 30-80 mass% of short fiber A having a fineness of 0.4-0.9 dtex; and 20-70 mass% of short fiber B having a fineness of 1.1-20.0 dtex, wherein the card-passing coefficient of the short fiber A is within the range of 15-260 as represented by Equation (1) below. (1): Card-passing coefficient=(fineness×strength×√elongation×√number of crimp×√curliness)/(fiber length)

机译：本发明解决了以下问题：提供一种用于吸音材料的非织造织物，该非织造织物在低频和高频范围内具有优异的吸声性能，优异的生产率和优异的品质;吸音材料;以及用于吸音材料的无纺布的制造方法。该吸音材料用无纺布包含：30〜80质量％的细度为0.4〜0.9dtex的短纤维A;和30〜80质量％的短纤维A。细度为1.1〜20.0dtex的短纤维B为20〜70质量％，如以下的式（1）所示，短纤维A的梳理通过系数在15〜260的范围内。（1）：卡片通过系数=（细度×强度×√伸长率×√卷曲数×√弯曲度）/（纤维长度）

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公开/公告号WO2020179753A1

专利类型
公开/公告日2020-09-10

原文格式PDF
申请/专利权人 TORAY INDUSTRIES INC.;
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申请/专利号WO2020JP08766
发明设计人 NAKAHARA MAKOTO;KAJIYAMA HIROSHI;
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申请日2020-03-02
分类号G10K11/162;G10K11/168;
国家 WO
入库时间 2022-08-21 11:09:33

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