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公开(公告)号：US10316444B2
公开(公告)日：2019-06-11
申请号：US15032506
申请日：2014-10-27
申请人： TOYOBO CO., LTD.
IPC分类号： D04H3/16 , D04H3/018 , D04H3/03 , D04H3/14 , A47C27/12 , A47G9/02 , B60N2/70 , B61D33/00 , D04H3/011 , D04H3/016 , D04H3/077
摘要： The present invention provides an elastic network structure that has excellent cushioning properties and makes less sound when it is compressed and recovers its shape. A network structure including a three-dimensional random loop bonded structure obtained by forming random loops by curling treatment of a continuous linear structure comprising a thermoplastic resin, and by making each loop mutually contact in a molten state to weld the majority of contacted parts, wherein (a) the continuous linear structure is a hollow cross section, (b) the degree of hollowness of the hollow cross section is not less than 10% and not more than 50%, (c) the fiber diameter of the continuous linear structure is not less than 0.10 mm and not more than 0.65 mm, and (d) the number of bonded points per unit weight of the random loop bonded structure is not less than 200/g and less than 500/g.
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公开(公告)号：US10266977B2
公开(公告)日：2019-04-23
申请号：US14884806
申请日：2015-10-16
申请人： C-ENG CO., LTD.
发明人： Nobuyuki Takaoka
IPC分类号： D04H3/03 , B29D28/00 , B29L31/58 , D04H3/077 , B29K101/12 , B29C47/00 , B29C47/06 , B29C47/88
摘要： A three-dimensional netted structure having an upper surface, a lower surface, two side surfaces a left end surface, and a right end surface, including at least a plurality of filaments helically and randomly entangled and thermally bonded together, wherein the filaments are formed out of a thermoplastic resin by extrusion molding followed by cooling with a liquid; and the netted structure is four-surface molded, the upper surface, the lower surface and the two side surfaces being molded. An apparatus and a method for manufacturing the three-dimensional netted structure.
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公开(公告)号：US20220205156A1
公开(公告)日：2022-06-30
申请号：US17694867
申请日：2022-03-15
摘要： A spunbonded nonwovens is made by first spinning thermoplastic continuous filaments and emitting them from a spinneret in a direction and then passing the filaments in the direction through a cooling chamber. Meanwhile cooling air is fed from respective manifolds flanking the chamber into the chamber to cool the filaments and the cooling air is guided into the manifolds through respective manifolds and through respective planar homogenizing elements each having a plurality of openings forming a free open surface area constituting 1 to 40% of the total surface area of the respective planar homogenizing element. The cooling air passes from the planar homogenizing element into the cooling chamber through a flow straightener.
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公开(公告)号：US4726862A
公开(公告)日：1988-02-23
申请号：US33827
申请日：1987-04-03
申请人： Shigeru Goi , Taizo Sugihara , Hiroshi Sonoda
发明人： Shigeru Goi , Taizo Sugihara , Hiroshi Sonoda
摘要： In a process for producing tubular shaped fibrous articles of small diameter by heating and cooling a fibrous bundle containing at least 20 weight % of hot-melt-adhesive composite fibers, the improvements comprise using a shaping apparatus including an injecting chamber, an injecting hole formed in the wall of the chamber, a fibrous bundle outlet provided with a nozzle of a desired shape in cross-section, a cylindrical pipe for introducing the fibrous bundle, which has a cross-sectional area larger than that of the outlet, is located at a position opposite to the outlet and projects toward the outlet and terminates in the injecting chamber, and a core pipe which is open at its base on the outside of the injecting chamber, has its one end inserted through the cylindrical pipe and extending into the nozzle through the injecting chamber, and having a vent in its portion exposed within the injecting chamber, and passing the fibrous bundle through the cylindrical pipe to the outlet, while injecting a hot compressed gas through the injecting hole, thereby to heat and shape the fibrous bundle to and at its hot-melt-adhesive temperature.
摘要翻译： 在通过加热和冷却含有至少20重量％的热熔性复合纤维的纤维束的生产小直径的管状纤维制品的方法中，改进包括使用成型设备，其包括注射室，形成的注射孔 在室的壁中，具有横截面为所需形状的喷嘴的纤维束出口，具有大于出口的横截面面积的横截面积的用于引入纤维束的圆柱形管子位于 与出口相对的位置朝向出口突出并终止在注射室中，并且在其注射室外侧的基部处开放的芯管的一端通过圆柱形管插入并延伸到喷嘴中 通过注射室，并且在其部分暴露在注射室内的通气口，并使纤维束通过圆柱形管道到出口，而i 通过注射孔喷射热的压缩气体，从而将纤维束加热并成形为其热熔粘合温度。
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公开(公告)号：US11697897B2
公开(公告)日：2023-07-11
申请号：US17694867
申请日：2022-03-15
摘要： A spunbonded nonwovens is made by first spinning thermoplastic continuous filaments and emitting them from a spinneret in a direction and then passing the filaments in the direction through a cooling chamber. Meanwhile cooling air is fed from respective manifolds flanking the chamber into the chamber to cool the filaments and the cooling air is guided into the manifolds through respective manifolds and through respective planar homogenizing elements each having a plurality of openings forming a free open surface area constituting 1 to 40% of the total surface area of the respective planar homogenizing element. The cooling air passes from the planar homogenizing element into the cooling chamber through a flow straightener.
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公开(公告)号：US11306421B2
公开(公告)日：2022-04-19
申请号：US16423049
申请日：2019-05-27
摘要： An apparatus for making spunbonded nonwovens has a spinneret for emitting continuous thermoplastic filaments in a filament-travel direction, a cooling chamber downstream in the direction from the spinneret for cooling the spun filaments with cooling air, two manifolds on opposite sides of the cooling chamber opening transversely of the direction into the cooling chamber, and a respective conduit having a conduit cross-sectional area and connected to each manifold for feeding cooling air thereto. The conduit cross-sectional area increases toward the manifold to a manifold cross-sectional area, and manifold cross-sectional area is at least twice as large as the conduit cross-sectional area. At least one flow straightener is provided upstream from the cooling chamber in each manifold for orienting air flow in an air-flow direction, and at least one perforated planar homogenizing element is provided in each manifold for homogenizing the cooling air flow.
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公开(公告)号：US20230332342A1
公开(公告)日：2023-10-19
申请号：US18200610
申请日：2023-05-23
摘要： A spunbonded nonwovens is made by first spinning thermoplastic continuous filaments and emitting them from a spinneret in a direction and then passing the filaments in the direction through a cooling chamber. Meanwhile cooling air is fed from respective manifolds flanking the chamber into the chamber to cool the filaments and the cooling air is guided into the manifolds through respective manifolds and through respective planar homogenizing elements each having a plurality of openings forming a free open surface area constituting 1 to 40% of the total surface area of the respective planar homogenizing element. The cooling air passes from the planar homogenizing element into the cooling chamber through a flow straightener.
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公开(公告)号：US11725315B2
公开(公告)日：2023-08-15
申请号：US16084667
申请日：2017-03-16
发明人： Luigi Zara
IPC分类号： D04H1/76 , D04H3/002 , F01N1/24 , D04H3/018 , F01N3/28 , D04H3/077 , D04H3/07 , D04H3/005 , D04H3/00
CPC分类号： D04H1/76 , D04H3/00 , D04H3/002 , D04H3/005 , D04H3/018 , D04H3/07 , D04H3/077 , F01N1/24 , F01N3/2853 , F01N2310/02 , F01N2310/04 , Y02A50/20
摘要： Method for producing a fibrous mat, which can be installed in a component of a vehicle provided with an internal combustion engine for acoustically and thermally insulating the component. The method comprises the steps of: providing a fibrous core consisting of at least one fibrous bundle that extends along a direction that is approximately parallel to a longitudinal axis; wrapping the outer surface of the fibrous core by means of a fibrous bundle that extends along a direction that is approximately transverse to the bundle of the fibrous core, thus providing at least one outer tubular fibrous containment sleeve that extends, in turn, along the longitudinal axis and covers the outer surface of the fibrous core to trap the fibrous core therein.
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公开(公告)号：US5063945A
公开(公告)日：1991-11-12
申请号：US500574
申请日：1990-03-28
申请人： Taizo Sugihara , Hiromu Sonoda , Kiyonori Shiiba
发明人： Taizo Sugihara , Hiromu Sonoda , Kiyonori Shiiba
CPC分类号： A24D3/08 , Y10T428/2924 , Y10T428/2967 , Y10T428/2978
摘要： A tobacco filter stock capable of being molded into a filter only be entanglement of filaments with one another without any adhesion means, whereby the resulting filter has a suitable hardness and a superior whiteness. A tobacco filter and a production process thereof are provided, whereby the tobacco filter stock comprises a ton of crystalline polyolefin filaments, preferably crystalline polypropylene filaments, having a single filament denier of 1 to 6 d/f, a total denier of 30,000 to 60,000 D 40 to 60 crimps/25 mm filament, a crimp elastic modulus of 2.5 to 5.0, a frictional coefficient between filaments of 0.20 to 0.37 and a height ratio (height/width) of 0.01 to 0.1.
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