• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A hollow fiber (62) which contains within the hollow a co-spun hollow or solid filament (60). The solid filament is formed of polymer that can distribute energy within the hollow fiber while a co-spun hollow inner filament can also act as a vessel for transportation or separation of fluids. Spinnerets for co-spinning such filaments are of one piece construction.
    公开号:SU1762762A3
    申请号:SU874202838
    申请日:1987-06-26
    公开日:1992-09-15
    发明作者:Вонг Самуелсон Гарри
    申请人:Е.И.Дюпон Де Немур Энд Компани (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the production of chemical fibers.
    The purpose of the invention is to reduce the cost of production.
    In figures 1, 2 and 3 are given side views, bottom and top of the die according to the invention.
    Figures 4 and 5 show, on an enlarged scale, the bottom and top views of the capillary of the filter of Figure 1.
    According to the invention, the die 1 is adapted to be inserted into a spin nozzle for supplying one or several polymers for fiber forming and is a plate 2 s.
    capillaries 3 connecting the upper 4 and lower 5 surfaces. The capillary p 3 is formed by two concentric annular channels 6 and 7 and has a central cavity 8. concentric with an annular channel 7. and a second cavity 9 between annular channels 6 and 7. There are many supports 10 and 11, which serve as jumpers on annular channels 6 and 7 with an angular positioned around the annular channels to impart the structural integrity of the spinneret. Bridges 11 and 10 partially extend through the annular channels and are radially arranged in angular positions. To connect with the atmosphere
    00
    there is a hole 12, starting on the bottom surface 5 of the spinneret and passing through two bridges 10 and 11 coinciding in the angular position to the cavities 8 and 9.
    During the operation of the embodiment of the spinneret of FIGS. 1-3, the molten polymer initially fills the recesses on the upper surface 4 of the spinneret, then is evenly distributed around the circumference of the annular channel b to form a hollow fiber. At the same time, a different polymer is fed to the annular channel 32, at the exit of which a hollow fiber is obtained, which is located inside the above and is formed at the exit of the annular channel 6. As the polymer flows out, a partial vacuum is created from the output end of the spinnerette. cavities 8 and 9 through hole 12. From cavities 8 and 9, air passes into the inner and outer hollow fibers of the double hollow fiber.
    The radial ridges 10 and 11 extend partly into the annular channels 6 and 7, but they can extend along the entire length of the annular channels.
    权利要求:
    Claims (5)
    [1]
    1. Stretched hollow fiber, having a cylindrical outer sheath and co-located internal fiber for the entire length throughout the length, characterized in that, in order to reduce the cost of production, the inner fiber is loosely arranged in the cylindrical sheath .
    [2]
    2. The fiber according to claim 1, characterized in that the inner fiber is a light guide fiber.
    [3]
    3. Fiber according to claim 1, characterized in that. that the inner fiber is a conductive fiber.
    [4]
    4. A filler for obtaining a hollow fiber made in the form of a monolithic plate having upper and lower surfaces connected by a capillary formed by two concentric cylindrical channels, a central cavity located in the part of the plate bounded by an internal cylindrical channel and concentric with the latter, and an additional cavity located between the concentric cylindrical channels, characterized in that, in order to reduce the cost of production, the plate has a number of radial small holes located around cylindrical channels and arranged in pairs on corresponding diameters, and a hole passing through a pair of jumpers made along the line of one diameter, extending to the side surface of the plate, and connecting concentric cylindrical channels, each jumper having a section located in the corresponding cylindrical channel.
    [5]
    5. Filer according to claim 4, wherein that the ends of the jumpers are located at the level of the lower plane of the plate.
    ..
    /
    - /
    G2
    FIG. 2
    fig 2
    Phie.z
    fig L
    L
    FIG. five
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1762762A3|1992-09-15|Prolonged hollow fiber and spinneret for producing same
    KR890017394A|1989-12-16|Hollow filaments in hollow filament composite fibers with space retaining means and spinnerets for their manufacture
    CA2060614A1|1992-08-06|Spinnerette for producing bi-component trilobal filaments
    JPS5860010A|1983-04-09|Hollow fiber and dialytic membrane consisting of said hollow fiber
    US4717331A|1988-01-05|Spinning nozzle
    US4836763A|1989-06-06|Seven hole spinneret
    US4768857A|1988-09-06|Multifilament type plastic optical fiber
    CN102206881A|2011-10-05|Device used for producing three-component skin core type fiber
    KR950008903B1|1995-08-09|Spinneret assembly for sheath-core type composite fibers
    KR19990036050A|1999-05-25|Spiral Candle Filter
    CN1265035C|2006-07-19|Conjugate spinneret for dissolvent method cellulose fiber spinning
    US3453689A|1969-07-08|Insert type spinneret
    KR870000456A|1987-02-18|Method for manufacturing multifilament optical fiber
    US7691318B2|2010-04-06|Process of making hollow fibers
    US3397427A|1968-08-20|Sealed vented insert spinneret
    KR0153255B1|1998-12-01|Apparatus for spinning core-skin fibres
    CN1056317A|1991-11-20|Composite spinnerette pack
    US4306972A|1981-12-22|Dialysis apparatus
    JP3546635B2|2004-07-28|Spinneret and spinneret for spinning core-sheath composite fiber
    KR940002374B1|1994-03-24|Spinning pack for double sheath-core type composite fiber made of three components
    CN212051744U|2020-12-01|Improved large-hollowness fiber spinneret plate
    EP0265074B1|1991-04-24|Multifilament type plastic optical fiber
    SU903387A1|1982-02-07|Device for forming bi-component conductive filaments
    SU478073A1|1975-07-25|Filler for forming chemical fibers
    SU1313896A1|1987-05-30|Spinneret for forming hollow filament
    同族专利:
    公开号 | 公开日
    US4743189A|1988-05-10|
    EP0251729A3|1989-02-01|
    JP2563806Y2|1998-02-25|
    JPS6359408A|1988-03-15|
    JPH0910U|1997-01-10|
    DE3773765D1|1991-11-21|
    CA1286462C|1991-07-23|
    EP0251729A2|1988-01-07|
    EP0251729B1|1991-10-16|
    AR242837A1|1993-05-31|
    KR890000700A|1989-03-16|
    引用文献:
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    US1541528A|1923-05-03|1925-06-09|Royle Vernon|Core bridge for tubing machines|
    US3241503A|1963-08-21|1966-03-22|Schafer Leonhard|Concentric pastry die|
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    JPS5444307B2|1977-01-13|1979-12-25|
    US4370114A|1979-09-07|1983-01-25|Toray Industries, Inc.|Spinneret assembly for use in production of multi-ingredient multi-core composite filaments|
    JPS5689918A|1979-12-24|1981-07-21|Mitsubishi Plastics Ind Ltd|Mouth piece for production of laminated film|
    JPS58109610A|1981-12-21|1983-06-30|Mitsubishi Rayon Co Ltd|Production of hollow fiber|
    JPS59192721A|1983-04-12|1984-11-01|Mitsubishi Rayon Co Ltd|Production of polyester high-hollow fiber|
    US4493629A|1983-12-27|1985-01-15|Monsanto Company|Modular spinnerette assembly|
    JPH0680206B2|1985-03-01|1994-10-12|ダイセル化学工業株式会社|Multiple hollow fiber spinneret|
    JPH0733602B2|1985-03-22|1995-04-12|ダイセル化学工業株式会社|Multi-tube hollow fiber|JPH0673616B2|1987-10-09|1994-09-21|宇部興産株式会社|Method for producing polyimide two-layer hollow fiber membrane|
    US4941812A|1988-05-10|1990-07-17|E. I. Du Pont De Nemours And Company|Spinneret for production of a hollow filament within a hollow filament composite fiber having spacing means|
    US4836763A|1988-07-29|1989-06-06|E. I. Dupont De Nemours And Company|Seven hole spinneret|
    US5256050A|1989-12-21|1993-10-26|Hoechst Celanese Corporation|Method and apparatus for spinning bicomponent filaments and products produced therefrom|
    US5125818A|1991-02-05|1992-06-30|Basf Corporation|Spinnerette for producing bi-component trilobal filaments|
    US5527611A|1993-02-16|1996-06-18|E. I. Du Pont De Nemours And Company|Relating to hollow fiber identification|
    US5484650A|1993-02-16|1996-01-16|E. I. Du Pont De Nemours And Company|Hollow fiber identification|
    US5540993A|1993-02-16|1996-07-30|E. I. Du Pont De Nemours And Company|Relating to fiber identification|
    US5540994A|1993-02-16|1996-07-30|E. I. Du Pont De Nemours And Company|Fiber identification|
    IT1274004B|1994-05-06|1997-07-14|Sorin Biomedica Cardio Spa|EXCHANGE STRUCTURE, EXAMPLE FOR BIOMEDICAL DEVICES|
    SG80604A1|1998-10-02|2001-05-22|Univ Singapore|Annular hollow fiber membranes for gas separation|
    US6844055B1|1999-12-02|2005-01-18|Dow Global Technologies Inc.|Hollow strandfoam and preparation thereof|
    US6485650B1|2000-08-28|2002-11-26|Facilichem, Inc.|Liquid membrane separation of enantiomers|
    US20060094112A1|2001-03-07|2006-05-04|Omotunde Babalola|Biological scaffold|
    US6551088B2|2001-06-25|2003-04-22|Arteva North America S.A.R.L.|Apparatus for spinning hollow bicomponent filaments|
    US7288871B1|2003-07-03|2007-10-30|Santa Fe Science And Technology, Inc.|Solid-in-hollow polymer fiber electrochemical devices|
    US7465684B2|2005-01-06|2008-12-16|Buckeye Technologies Inc.|High strength and high elongation wipe|
    MX353338B|2010-12-08|2018-01-09|Georgia Pacific Nonwovens Llc|Dispersible nonwoven wipe material.|
    EP2959509B1|2013-02-14|2018-05-23|Nanopareil, Llc|Electrospun hybrid nanofibre felt, method for making the same, and method for purifying biomolecules|
    CA2930312C|2013-11-15|2021-11-23|Buckeye Technologies Inc.|Dispersible nonwoven wipe material|
    US20190021570A1|2016-01-12|2019-01-24|Gpcp Ip Holdings Llc|Nonwoven cleaning substrate|
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    US20190376011A1|2017-01-12|2019-12-12|Georgia-Pacific Nonwovens LLC|Nonwoven material for cleaning and sanitizing surfaces|
    WO2018132684A1|2017-01-12|2018-07-19|Georgia-Pacific Nonwovens LLC|Nonwoven material for cleaning and sanitizing surfaces|
    CA3056652A1|2017-04-03|2018-10-11|Georgia-Pacific Nonwovens LLC|Multi-layer unitary absorbent structures|
    WO2019067487A1|2017-09-27|2019-04-04|Georgia-Pacific Nonwovens LLC|Nonwoven air filtration medium|
    WO2019067432A1|2017-09-27|2019-04-04|Georgia-Pacific Nonwovens LLC|Nonwoven material with high core bicomponent fibers|
    US20210054548A1|2018-01-31|2021-02-25|Georgia-Pacific Nonwovens LLC|Modified Cellulose-Based Natural Binder for Nonwoven Fabrics|
    US20190233972A1|2018-01-31|2019-08-01|Saudi Arabian Oil Company|Producing Fibers Using Spinnerets|
    EP3765663A1|2018-03-12|2021-01-20|Georgia-Pacific Nonwovens LLC|Nonwoven material with high core bicomponent fibers|
    US20220053991A1|2018-09-19|2022-02-24|Georgia-Pacific Mt. Holly Llc|Unitary nonwoven material|
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    CN114127350A|2019-05-30|2022-03-01|佐治亚-太平洋Mt.哈利有限责任公司|Low path air-laid nonwoven material|
    WO2021024200A1|2019-08-08|2021-02-11|Georgia-Pacific Nonwovens LLC|Low-dust airlaid nonwoven materials|
    WO2021024199A1|2019-08-08|2021-02-11|Georgia-Pacific Nonwovens LLC|Dispersible nonwoven materials including cmc-based binders|
    WO2021053588A1|2019-09-18|2021-03-25|Georgia-Pacific Mt. Holly Llc|Absorbent nonwoven materials|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/879,571|US4743189A|1986-06-27|1986-06-27|Spinneret for a co-spun filament within a hollow filament|
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