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    • 95. 发明授权
    • Very soft polyolefin spunbonded nonwoven fabric
    • 非常柔软的聚烯烃纺粘无纺布
    • US4810556A
    • 1989-03-07
    • US102431
    • 1987-09-29
    • Yoshinori KobayashiNaoyuki TamuraTakanobu SakaiYoshinori Yoshida
    • Yoshinori KobayashiNaoyuki TamuraTakanobu SakaiYoshinori Yoshida
    • D04H3/16D04H1/04
    • D04H3/16Y10S428/913Y10T428/24446Y10T428/27Y10T442/681
    • Disclosed are a very soft polyolefin spunbonded nonwoven fabric and its production method. The polyolefin spunbonded nonwoven fabric according to the present invention is defined as (A) being formed of continuous polyolefin fibers having a fineness of 0.5 to 3 denier, (B) having basic weight between 30 g/m.sup.2 and 15 g/m.sup.2, and (C) having .sqroot.S.sub.MD .times.S.sub.TD of 2.5 g or below, wherein S.sub.MD and S.sub.TD are respectively the softnesses in the machine and transverse directions as measured by a handle-O-meter. The method of producing a strip of very soft polyolefin nonwoven fabric by directing polyolefin continuous fibers in a fixed direction, comprises the steps of: orienting the axes of the continuous fibers in the direction in which the continuous fibers are fed so as to form a web having a warp orientation factor (the maximum tensile strength in the direction in which the continuous fibers are fed, i.e., in a machine direction/the maximum tensile strength in a transverse direction) of 3.0 or above; and then applying wave-like crepes propagated in the machine direction to the web by creping the web.
    • 公开了一种非常柔软的聚烯烃纺粘无纺布及其制造方法。 根据本发明的聚烯烃纺粘非织造织物定义为(A)由细度为0.5至3旦尼尔的连续聚烯烃纤维,(B)的碱性重量为30克/米2至15克/米2,和 C)具有2.5g或以下的2ROOT SMDxSTD,其中SMD和STD分别是由手柄O测量仪测量的机器和横向的柔软度。 通过在固定方向上引导聚烯烃连续纤维来生产非常柔软的聚烯烃无纺织物条的方法包括以下步骤:将连续纤维的轴线沿着连续纤维进给的方向取向,以形成网 具有翘曲取向因数(连续纤维进给方向的最大拉伸强度,即机器方向/横向的最大拉伸强度)为3.0以上; 然后通过起皱纸幅将沿机器方向传播的波状褶皱应用于幅材。