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1.发明申请公开(公告)号：US20220316096A1
公开(公告)日：2022-10-06
申请号：US17611825
申请日：2020-05-14
摘要： The present invention relates to a method for cleaning a spunbonding spinneret for the production of cellulosic spunbonded nonwoven fabric from a solution of cellulose in an aqueous organic solvent by extruding the solution through nozzle holes of the spunbonding spinneret to form filaments and stretching the filaments in the direction of extrusion by means of a gas stream, during which method contaminations containing cellulose will accumulate on the spinneret surface. The method according to the invention comprises the steps of: a) spraying the contamination with an aqueous fluid precipitating the cellulose; and b) detaching and carrying away the contamination by means of the gas stream.
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公开(公告)号：US20220170180A1
公开(公告)日：2022-06-02
申请号：US17200321
申请日：2021-03-12
发明人： How TSENG
摘要： A passive intermittent rotating assembly can automatically adjust a part of a cleaning material when the cleaning material cleans a spinning jet each time and that can stably operate in a high-voltage environment. The passive intermittent rotating assembly includes a plurality of first abutment members and second abutment members being arranged respectively at an inner side and outer side of the main wheel along the circumferential direction, and being separated from each other to form gaps for a push portion of a push member to pass through. Each of the first abutment members includes a first inner-side abutment portion and a first outer-side abutment portion provided for abutting against the push portion. Each of the second abutment members includes a second inner-side abutment portion and a second outer-side abutment portion provided for abutting against the push portion.
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公开(公告)号：US10920341B2
公开(公告)日：2021-02-16
申请号：US15919503
申请日：2018-03-13
发明人： Kenya Uchida , Ikuo Uematsu , Tomomichi Naka , Yoko Tokuno , Yuma Kikuchi
IPC分类号： D01D5/00 , D01D4/04 , D04H1/728 , D04H1/55 , D04H1/4242
摘要： An electrospinning apparatus according to an embodiment is configured to deposit a fiber on a collector or a member. The electrospinning apparatus includes a first nozzle head provided on one side of the collector or the member, and a second nozzle head provided on the side opposite to the first nozzle head with the collector or the member interposed. The first nozzle head and the second nozzle head are at a section where the collector or the member moves in a direction tilted with respect to a horizontal direction.
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公开(公告)号：US06926508B2
公开(公告)日：2005-08-09
申请号：US09886073
申请日：2001-06-21
摘要： A spinneret steam blanketing system for blanketing the face of a spinneret with gas. The system includes a steam distribution ring surrounding a filament array, where the steam distribution ring abuts the spin head and is removably mounted to said spin head. The steam distribution ring is removed and the face of the spinneret may be wiped clean, without the need for removing and replacing the spin pack.
摘要翻译： 喷丝头蒸汽覆盖系统，用于将喷丝头的表面用气体覆盖。 该系统包括围绕灯丝阵列的蒸汽分配环，其中蒸汽分配环邻接旋转头并且可移除地安装到所述旋转头。 蒸汽分配环被去除，并且喷丝头的表面可以被擦拭干净，而不需要去除和更换纺丝组件。
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公开(公告)号：US5511960A
公开(公告)日：1996-04-30
申请号：US032325
申请日：1993-03-17
申请人： Taiju Terakawa , Sadaaki Nakajima
发明人： Taiju Terakawa , Sadaaki Nakajima
CPC分类号： D01D4/025 , D01D5/0985 , D01D5/32 , Y10S264/28 , Y10S264/29 , Y10S425/217
摘要： A spinneret device for side-by-side, conjugate melt-blow spinning can correspond to combinations of various heterogeneous polymers for conjugate spinning and is uniform in the conjugate state such as conjugate ratio between single fibers, the proportion of the peripheral percentage of both the components in the fiber cross-section, etc. and has fineness, a large nozzle plate width and a superior productivity. The device is composed mainly of a spinning resin-feeding plate; a distributing plate; a separating plate provided with confluent grooves of conjugate components engraved at the bottom part of the plate, corresponding in number to the spinning nozzles; a nozzle plate; and a plate for controlling the clearance for a gas. Even when the viscosity unevenness, spinning temperature unevenness, etc. of the spinning resins occur in the cavity of the nozzle plate to some extent, microfine fibers can be obtained which are uniform in the composite ratio and the cross-sectional, peripheral percentages of the respective components in the fiber cross-section, while being uniformly fine.
摘要翻译： 用于并列共轭熔体纺丝的喷丝头装置可以对应于用于共轭纺丝的各种异种聚合物的组合，并且在共轭状态下是均匀的，例如单纤维之间的共轭比，两者的外围百分比 纤维横截面中的部件等，并且具有细度，大的喷嘴板宽度和优异的生产率。 该装置主要由纺纱树脂进料板组成; 分配板; 分离板，其设置有与所述纺丝喷嘴相对应的在所述板的底部刻有的共轭组分的汇合槽; 喷嘴板; 以及用于控制气体间隙的板。 即使纺丝树脂的粘度不均匀性，纺丝温度不均匀等发生在喷嘴板的空腔中，也可以获得在复合比例和横截面外周百分比 纤维横截面中的各个部件，同时均匀。
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公开(公告)号：US5286182A
公开(公告)日：1994-02-15
申请号：US817346
申请日：1992-01-06
申请人： Hiroshi Maeda , Mamoru Shoji
发明人： Hiroshi Maeda , Mamoru Shoji
CPC分类号： C04B35/62245 , C04B35/62236 , C04B35/6266 , C04B35/62675 , D01D4/025 , D01D5/04 , D01F9/10 , C04B2235/5264 , C04B2235/96 , Y10S264/19
摘要： A spinning nozzle for dry spinning a spinning solution containing a metal compound and an organic polymer compound by a blowing method. In the spinning nozzle, an air nozzle 6 is provided having a rectangular-prism-like slit which is formed by opposing inner surfaces, extending in parallel to each other. The opposing inner surfaces each include a projecting portion, which are formed at the front side of a pair of cover plates 1,1, with each of the projecting portions having a knife edge portion at its free end. Spinning solution supplying nozzles are composed of a plurality of linear pipes and are arranged in the air nozzle 6 in such a manner that they are in parallel to the parallel surfaces of the cover plates and project from the edges of the the parallel surfaces. Air fed through a gas feeding port 5 and blown out as an air stream from the air nozzle 6, and streams of the spinning solution extruded from the spinning solution supplying nozzles form parallel streams. Further, the air stream in parallel to the spinning solution streams is sufficiently rectified so that it contacts the spinning solution. Accordingly, an amount of air used can be greatly reduced and fibers having excellent quality can be produced.
摘要翻译： 一种纺丝喷嘴，用于通过吹塑法纺丝含有金属化合物和有机高分子化合物的纺丝溶液。 在纺丝喷嘴中，设置有空气喷嘴6，其具有由彼此平行延伸的相对的内表面形成的矩形棱柱状狭缝。 相对的内表面各自包括形成在一对盖板1,1的前侧的突出部分，其中每个突出部分在其自由端具有刀刃部分。 旋转溶液供给喷嘴由多根线状管构成，并配置在空气喷嘴6中，使其与盖板的平行面平行并从平行面的边缘突出。 通过气体供给口5供给空气，从空气喷嘴6作为空气流吹出，从纺丝溶液供给喷嘴喷出的纺丝溶液流形成平行流。 此外，平行于纺丝溶液流的空气流充分整流，使其与纺丝溶液接触。 因此，可以大大减少使用的空气量，并且可以生产具有优良品质的纤维。
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公开(公告)号：US3975475A
公开(公告)日：1976-08-17
申请号：US533533
申请日：1974-12-17
申请人： Joe Alvin Foley
发明人： Joe Alvin Foley
CPC分类号： B29C47/0883 , B08B1/00 , D01D4/04 , B29C47/0014
摘要： Accumulated deposits are removed from the face of a spinneret by periodically manually wiping the face of the spinneret with the blade of a hand held wipe stick. Cooling the blade just before use decreases the smearing of the polymer melt and increases the wipe cycle. Dry ice is the preferred cooling medium.
摘要翻译： 累积的沉积物通过用手持式擦拭棒的刀片周期性地手动擦拭喷丝头的表面从喷丝头的表面移除。 在使用前冷却叶片会降低聚合物熔体的污迹，并增加擦拭周期。 干冰是首选的冷却介质。
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公开(公告)号：US2647891A
公开(公告)日：1953-08-04
申请号：US11794049
申请日：1949-09-26
申请人： DU PONT
CPC分类号： D01F2/08 , D01D4/04 , D01F13/02 , Y02P70/627
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公开(公告)号：US20240076804A1
公开(公告)日：2024-03-07
申请号：US18272339
申请日：2021-12-16
申请人： Jong-Su PARK
发明人： Jong-Su PARK , Chae-keun LIM , Woong HUH , Woong-jun HWANG , Chun-su LEE , Youn-chang LEE , Yong-rae ROH
CPC分类号： D01D4/04 , D01D4/02 , D01D5/0069
摘要： Disclosed is a nozzle block applied to an electrospinning device. At least one piercing unit (means of piercing) having a diameter smaller than the inner diameter of a spinning nozzle is coaxially disposed inside the spinning nozzle in order to prevent solidification of a solution at a tip of the spinning nozzle. The present disclosure includes a first cleaning mechanism for cleaning the spinning nozzle by reciprocating the piercing unit and the spinning nozzle relative to each other so that the tip of the spinning nozzle is unclogged, and a second cleaning mechanism for cleaning aggregates deposited around and outside the tip of the spinning nozzle through chemical cleaning and/or physical cleaning when the electrospinning process is temporarily stopped or after the electrospinning process is completed.
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