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公开(公告)号：US12091792B2
公开(公告)日：2024-09-17
申请号：US18401784
申请日：2024-01-02
发明人： Zhangsheng Luo , Huifei Zhu , Lijun He
IPC分类号： B29C71/04 , D01D5/11 , D01D10/02 , D01D10/06 , D01F6/04 , D04H1/4291 , D04H1/558 , D04H1/56 , D04H1/724 , D04H3/007 , D06M10/00 , D06M11/05 , D06M13/144 , D06M13/148 , D06M13/184 , D06M13/188 , B29C35/08
CPC分类号： D04H1/724 , D04H1/4291 , D04H1/558 , D04H1/56 , D06M10/003 , B29C2035/0855 , B29K2023/06 , D10B2321/021
摘要： A flash spinning method for preparing non-woven fabrics based on microwave thermal fusion, a microwave thermal fusion device, and a non-woven fabric preparation device are provided. The flash spinning method includes: step S1, collecting filament bundles to form a non-woven fabric precursor, adding a microwave heating liquid to the non-woven fabric precursor; the microwave heating liquid being configured to absorb microwave energy and convert the microwave energy into thermal energy; and step S2, performing microwave heating on the non-woven fabric precursor containing the microwave heating liquid obtained in the step S1 to obtain a heated non-woven fabric, and performing a hot press forming treatment on the heated non-woven fabric to obtain a finished non-woven fabric. There is no temperature gradient in layers of the non-woven fabric precursor, thereby significantly improving the peeling strength of the finished non-woven fabric.
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公开(公告)号：US11946167B2
公开(公告)日：2024-04-02
申请号：US17982007
申请日：2022-11-07
IPC分类号： B08B3/14 , B08B3/04 , D01D4/02 , D01D5/06 , D01D5/14 , D01D5/16 , D01D10/00 , D01D10/06 , D01D11/00 , D01F6/38 , D06B3/04 , D06B23/14 , D06B23/20 , D01F9/22 , D01H13/02
CPC分类号： D01F6/38 , B08B3/041 , B08B3/048 , D01D5/06 , D01D10/00 , D01D10/06 , D01D11/00 , D01F9/22 , D01H13/02 , D10B2321/10 , D10B2401/063
摘要： A process for the production of acrylic fibers, in particular a spinning process for obtaining precursor fibers of carbon fiber by the wet spinning of a polymer solution in an organic solvent and the relative apparatus.
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公开(公告)号：US11946165B2
公开(公告)日：2024-04-02
申请号：US17271151
申请日：2019-08-30
申请人： Aurotec GmbH
发明人： Stefan Zikeli , Friedrich Ecker
摘要： A method for producing solid cellulose filaments from a fluid of the cellulose by extruding the fluid through a plurality of extrusion openings, whereby fluid filaments are produced, and solidifying the filaments in a coagulation bath, the filaments being bundled in the coagulation bath and being deflected as a bundle in order to be drawn from the coagulation bath above the coagulation bath level, the bundle of filaments assuming a deflection width on a deflecting device, which deflection width is defined in accordance with a formula. A device therefor is also provided.
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公开(公告)号：US20240058511A1
公开(公告)日：2024-02-22
申请号：US18386615
申请日：2023-11-03
申请人： FIBER&TECH CO.,LTD.
发明人： Sung Il KIM
IPC分类号： A61L31/04 , D04H1/4326 , D04H1/558 , D01D1/10 , D01D5/06 , D01D10/06 , D01F9/00 , D04H1/732 , D21B1/06 , D21H13/30
CPC分类号： A61L31/042 , D04H1/4326 , D04H1/558 , D01D1/103 , D01D5/06 , D01D10/06 , D01F9/00 , D04H1/732 , D21B1/061 , D21H13/30 , D10B2401/063 , D10B2509/00
摘要： The present invention relates to a hyaluronate nonwoven fabric composed of hyaluronate fibers and a manufacturing method therefor, wherein a nonwoven fabric composed of only pure hyaluronate is provided without the addition of any heterogeneous fiber, such as PVA which is a binding fiber essentially added during a wet-laid nonwoven fabric manufacturing process, so that a nonwoven fabric composed of only hyaluronate fibers with excellent human compatibility and without cytotoxicity, skin irritation, and the like can be provided, and thus can be used as patches for cosmetic patches, wet wound dressings, tissue adhesion barrier membranes, and the like.
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公开(公告)号：US20230383443A1
公开(公告)日：2023-11-30
申请号：US18250034
申请日：2021-10-22
申请人： CHINA PETROLEUM & CHEMICAL CORPORATION , SINOPEC NANJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CO., LTD.
发明人： Fanmin KONG , Yunsheng ZHAO , Pinhua YU , Ye ZHANG , Li XU , Xiaolian WU , Hao SU
CPC分类号： D01F6/04 , D01D10/06 , D01D5/04 , B01D53/04 , B01D53/002 , D10B2321/021 , D10B2401/063 , B01D2253/102 , B01D2257/7022 , B01D2258/02 , B01D2259/416
摘要： Spun fibers and the use thereof, and a fiber spinning method. The fiber spinning method comprises extruding and spinning a spinning solution, and then sequentially subjecting a fiber precursor obtained by spinning to cooling formation, drying and stretching, wherein the method for the cooling formation comprises bringing the fiber precursor into contact with a fluid at a temperature of no more than −10° C. Polyethylene spun fibers obtained by means of the fiber spinning method have a breaking strength of 40 CN/dtex or more and a modulus of 1400 CN/dtex or more.
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公开(公告)号：US20230383442A1
公开(公告)日：2023-11-30
申请号：US18328772
申请日：2023-06-05
CPC分类号： D01D5/06 , D10B2331/30 , D01D10/06
摘要： The present disclosure discloses a one-step chitosan fiber spinning device, including a stand; a stock solution tank, a coagulating bath, a plasticizing stretch bath, a water washing basin, a drying mechanism and a winding mechanism; a front end of a water conveying pipe is fixed on an inner wall of a front end of the water washing basin; a bearing at a front end of a mounting sleeve is mounted on the inner wall of the front end of the water washing basin; activity slots are formed in outer ends of mounting plates; a control head is fixed at an outer end of a control head seat; one end of a two-shaft motor is connected with a gear; a water tank is mounted at a top of a rear end of the water conveying pipe.
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公开(公告)号：US11767623B2
公开(公告)日：2023-09-26
申请号：US17826704
申请日：2022-05-27
申请人： LENZING AG
CPC分类号： D04H1/56 , B29C48/0014 , D01D5/14 , D01D10/06 , D01F2/00 , D04H1/4258 , D04H3/013 , D06C29/005 , D10B2201/22
摘要： This invention relates to a process and a device for manufacturing cellulose-based webs which are directly formed from lyocell spinning solution and in particular for the washing of directly formed cellulose webs.
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公开(公告)号：US20230183886A1
公开(公告)日：2023-06-15
申请号：US17787070
申请日：2020-12-11
摘要： The invention relates to a process for the production of spunbonded nonwoven and a device for the production of spunbonded nonwoven, wherein, in the process, a spinning mass is extruded through a plurality of nozzle holes to form filaments, the filaments are drawn in the extrusion direction, precipitated at least partially by being subjected to a coagulation air stream comprising a coagulation liquid and deposited to form the spunbonded nonwoven. To establish a process which permits a cost-efficient and simple adjustment of the air permeability of the spunbonded nonwoven, it is suggested that the air permeability of the spunbonded nonwoven is adjusted on the basis of at least one parameter of the coagulation air stream in that the actual air permeability of the spunbonded nonwoven is measured, the difference between the actual air permeability and a predefined target air permeability is determined and the at least one parameter of the coagulation air stream is changed as a function of the determined difference.
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公开(公告)号：US20230160108A1
公开(公告)日：2023-05-25
申请号：US17982007
申请日：2022-11-07
摘要： A process for the production of acrylic fibers, in particular a spinning process for obtaining precursor fibers of carbon fiber by the wet spinning of a polymer solution in an organic solvent and the relative apparatus.
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公开(公告)号：US20220290329A1
公开(公告)日：2022-09-15
申请号：US17607987
申请日：2020-04-30
发明人： Lalaso Vishnu MOHITE , Shailesh Prakash NAGARKAR , Santosh Shivaji SHINGOTE , Shirish Sheshrao THAKRE , Suvankar Madhusudan DUTTA , Bandu Madhukar KALE , Roop Kishore SHARMA , Manishkumar Govindbhai LIMBANI , Srivastava PANKAJ , Harendra Singh DAGUR
摘要： The present invention relates to a process for manufacturing lyocell filament yarn with improved mechanical properties and an apparatus thereof. The process involves washing of filament yarn with sequential decrease in NMMO concentrations and filament yarn drying under relaxed conditions. Additionally, the present invention also provides a compact washing and drying apparatus that uses controlled air gap spinning thereby resulting in production of LFY under relaxed conditions and also having a higher mechanical properties & productivity.
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