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    SPUNBONDED NON-WOVEN FABRIC, SANITARY MATERIAL, AND METHOD OF MANUFACTURING SPUNBONDED NON-WOVEN FABRIC
    1.
    发明申请
    SPUNBONDED NON-WOVEN FABRIC, SANITARY MATERIAL, AND METHOD OF MANUFACTURING SPUNBONDED NON-WOVEN FABRIC 有权

    公开(公告)号：US20220081814A1

    公开(公告)日：2022-03-17

    申请号：US17424577

    申请日：2020-01-30

    申请人： MITSUI CHEMICALS, INC.

    发明人： Taiichiro ICHIKAWA ,  Akio MATSUBARA ,  Koichi SHIMADA ,  Shigeyuki MOTOMURA

    IPC分类号： D04H1/541 ,  D04H3/16 ,  D04H3/007 ,  D04H1/4291 ,  D04H1/56

    摘要： A spunbonded non-woven fabric includes a fiber including a propylene homopolymer having a melting point of 140° C. or more, a polyethylene having a density of from 0.941 g/cm3 to 0.970 g/cm3, and at least one polymer selected from the group consisting of a polymer represented in (I) and a polymer represented in (II). In the spunbonded non-woven fabric, the fiber includes a sea-island structure, and the percentage of an island phase having a diameter of from 0.12 μm to less than 0.63 μm with respect to an island phase in a cross section orthogonal to the axis direction of the fiber on a number basis is 30% or more. (I) represents a random copolymer of propylene and at least one selected from ethylene or an α-olefin having a carbon number of from 4 to 20. (II) represents a propylene homopolymer with a melting point of less than 120° C.

    MELT-BLOWN NONWOVEN FABRIC, AND PRODUCTION PROCESS AND APPARATUS FOR THE SAME
    2.
    发明申请
    MELT-BLOWN NONWOVEN FABRIC, AND PRODUCTION PROCESS AND APPARATUS FOR THE SAME 有权
    金属非织造布，以及生产工艺及其相关设备

    公开(公告)号：US20160040335A1

    公开(公告)日：2016-02-11

    申请号：US14921756

    申请日：2015-10-23

    申请人： MITSUI CHEMICALS, INC.

    发明人： Akio MATSUBARA ,  Shingo KAJIYAMA ,  Kenichi SUZUKI ,  Hirohisa SHIODE ,  Takayuki KUBO

    IPC分类号： D04H1/4391 ,  B32B5/02 ,  H01M2/16 ,  D04H1/544 ,  B01D39/16 ,  B32B5/26 ,  D04H1/56

    CPC分类号： D04H1/4391 ,  B01D39/163 ,  B32B5/022 ,  B32B5/26 ,  B32B2262/0253 ,  D01D4/025 ,  D01D5/088 ,  D01D5/0985 ,  D04H1/5405 ,  D04H1/544 ,  D04H1/56 ,  D04H1/565 ,  D04H3/16 ,  H01M2/162 ,  Y10T428/24942 ,  Y10T442/626

    摘要： It is an object of the present invention to provide a stable production process for a melt-blown nonwoven fabric comprising thin fibers and having extremely few thick fibers [number of fusion-bonded fibers] formed by fusion bonding of thermoplastic resin fibers to one another, and an apparatus for the same. The present invention relates to a melt-blown nonwoven fabric comprising polyolefin fibers and having (i) a mean fiber diameter of not more than 2.0 μm, (ii) a fiber diameter distribution CV value of not more than 60%, and (iii) 15 or less fusion-bonded fibers based on 100 fibers; a production process for a melt-blown nonwoven fabric characterized by feeding cooling air of not higher than 30° C. from both side surfaces of outlets of slits 31 from which high-temperature high-velocity air is gushed out and thereby cooling the spun molten resin; and a production apparatus for the same.

    摘要翻译： 本发明的目的在于提供一种熔融非织造布的稳定的制造方法，所述熔喷无纺布包括薄纤维，并且通过将热塑性树脂纤维彼此熔合而形成的极细纤维[熔融纤维数] 及其装置。 本发明涉及包含聚烯烃纤维的熔喷非织造布，（i）平均纤维直径不大于2.0μm，（ii）纤维直径分布CV值不大于60％，和（iii） 基于100根纤维的15个或更少的熔合纤维; 熔喷无纺布的制造方法，其特征在于，从狭缝31的出口的两侧表面供给不高于30℃的冷却空气，高温高速空气喷出，从而冷却熔融 树脂; 及其制造装置。