公开(公告)号：US11946167B2

公开(公告)日：2024-04-02

申请号：US17982007

申请日：2022-11-07

申请人： Montefibre Mae Technologies S.r.l.

发明人： Franco Francalanci ,  Pierluigi Gozzo ,  Ana Paula Vidigal ,  Marco Rovellini ,  Valter Guardiani

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.

公开(公告)号：US11535955B2

公开(公告)日：2022-12-27

申请号：US16473989

申请日：2018-01-11

申请人： Truetzschler GmbH & Co. KG.

发明人： Lassad Nasri ,  Jean Clarysse

IPC分类号： B29C35/16 ,  D01D5/16 ,  D01D13/00 ,  D02G1/16 ,  D02J1/20 ,  D01D13/02 ,  D01D5/22 ,  D02G1/20 ,  D02J1/08 ,  D02J1/22 ,  D02J13/00 ,  B29C48/88

摘要： The present invention relates to a device and to a method for producing a texturized filament or yarn, wherein at least one filament is guided into a draw device, is guided there by a pair of intake rollers towards at least two pairs of drafting system rollers and drawn by the same, downstream of which is disposed a texturizing device with a cooling drum. Downstream the texturizing device with the cooling drum is disposed at least one cooled drafting system roller, by which the filament, respectively the yarn is cooled to a temperature of 0° C. to 50° C.

公开(公告)号：US11286581B2

公开(公告)日：2022-03-29

申请号：US16492308

申请日：2018-03-09

申请人： Toray Industries, Inc.

发明人： Hiroyoshi Ikuta ,  Takeya Ohashi ,  Tomoki Tamura

IPC分类号： D01D5/04 ,  D01D5/06 ,  D01D10/02 ,  D02J1/22 ,  D02J13/00 ,  D01F6/18 ,  D01D5/16 ,  D01F6/38 ,  D01F9/22

摘要： A drawing method is provided which enables a pressurized steam drawing of an acrylonitrile-based fiber bundle used as the precursor fiber of the carbon fiber bundle. In particular, a drawing method is provided which realizes a high processability when this treatment is conducted at a high draw ratio and high speed. This invention is a method for producing an acrylonitrile-based fiber bundle which includes the steps of spinning a spinning solution containing an acrylonitrile-based copolymer, and subjecting the fiber bundle to a pressurized steam drawing in a pressurized steam drawing apparatus (A) having at least two zones which are a preheating zone on the fiber bundle inlet side and a heating zone on the fiber bundle exit side, the two zones being separated by a seal member. The preheating zone is in a pressurized steam atmosphere at 0.05 to 0.35 MPa, the heating zone is in a pressurized steam atmosphere at 0.45 to 0.70 MPa, temperature difference ΔT1 in the preheating zone of the steam drawing apparatus in the fiber bundle-moving direction defined in the specification is up to 5° C., and temperature difference ΔT2 in the preheating zone of the steam drawing apparatus in the cross-sectional direction of the steam drawing apparatus defined in the specification is up to 5° C.

公开(公告)号：US20220002914A1

公开(公告)日：2022-01-06

申请号：US17289733

申请日：2019-12-26

申请人： KOLON INDUSTRIES, INC.

发明人： Sin-Ho LEE ,  Seong-Young KIM ,  Min-Woo NAM ,  Sang-Mok LEE ,  Young-Soo LEE

IPC分类号： D02G3/38 ,  D02J13/00 ,  D02G3/02 ,  D01D5/088 ,  D01D5/16 ,  D01F6/04 ,  D02J1/08

摘要： In the present disclosure, there are provided a polyethylene multifilament interlaced yarn having excellent weavability as well as enabling the manufacture of a protective product having high cut resistance and excellent fit by giving sufficient entanglements to the polyethylene multifilament yarn, and a method for manufacturing the same.

公开(公告)号：US11180867B2

公开(公告)日：2021-11-23

申请号：US16690397

申请日：2019-11-21

申请人： University of Kentucky Research Foundation

发明人： Ruben Sarabia-Riquelme

IPC分类号： D01D10/06 ,  D01D5/06 ,  D01F6/14 ,  D01D5/12 ,  D01D5/16 ,  D01F6/56 ,  D01F6/96 ,  D02J1/22 ,  D06M101/20 ,  D01F6/18 ,  D01D1/02 ,  D01F1/10

摘要： A method of wet spinning poly (3,4-ethylenedioxythiopene):poly (styrenesulfonate) or PEDOT:PSS fibers produces PEDOT:PSS fibers having a unique combination of electrical conductivity, thermal conductivity and Young's modulus properties.

公开(公告)号：US11117303B2

公开(公告)日：2021-09-14

申请号：US15123454

申请日：2015-03-03

申请人： Oerlikon Textile GmbH & Co. KG

发明人： Mathias Stündl ,  Stefan Kalies ,  Marco Kaulitzki ,  Jan Westphal

IPC分类号： B29C48/05 ,  D01D5/16 ,  D01D5/22 ,  D01D13/00 ,  D01D5/08 ,  B29C48/00 ,  D02G1/12 ,  D01D10/02 ,  D01D13/02 ,  B29L31/00

摘要： Techniques are directed to melt spinning, drawing, crimping and winding multiple threads. The threads are spun from a plurality of spinnerets of a spinning device and are drawn as a thread group by a drawing device and are subsequently fed for crimping next to one another to a plurality of texturing units. In order to obtain identical treatment of all threads within the thread group, the threads are guided individually with a plurality of wraps next to one another on a godet unit and, after running off from the godet unit, are guided in a straight thread run parallel next to one another into the texturing units. To this end, adjacent texturing units of the crimping device form a treatment spacing between themselves which is such that, in the case of being guided individually with a plurality of wraps on the godet unit, the threads can be guided in parallel in a straight thread run.

公开(公告)号：US11090850B2

公开(公告)日：2021-08-17

申请号：US15023172

申请日：2014-09-18

申请人： ISIS INNOVATION LIMITED

发明人： Pierre-Alexis Mouthuy

IPC分类号： D01D7/00 ,  D02G1/02 ,  B29C48/05 ,  D01D5/00 ,  D01D5/16 ,  A61L27/20 ,  B29L31/00

摘要： A method for producing a continuous filament from electrospun fibers includes providing a conducting collection surface that is an elongate three-dimensional surface. An attractive electric field gradient is formed between the collection surface and a source of electrically charged fibers. The collection surface is moved in a longitudinal direction relative to the source of electrically charged fibers. The fibers are collected on the collection surface so as to form a continuous filament.

公开(公告)号：US10807290B2

公开(公告)日：2020-10-20

申请号：US16385431

申请日：2019-04-16

申请人： JF Polymers (Suzhou) Co. Ltd.

发明人： Xiaofan Luo ,  Zhaokun Pei

IPC分类号： D01D5/12 ,  D01D5/16 ,  D01D10/02 ,  D01D10/04 ,  D02J13/00 ,  B29C48/05 ,  B29C48/00 ,  D01F6/62 ,  B29C71/02 ,  D01D5/08 ,  B29C71/00 ,  B33Y70/00 ,  C08G63/08 ,  B29C64/118 ,  B33Y10/00 ,  B29K67/00 ,  B29C48/30 ,  B29C48/02 ,  B29C48/285 ,  B29K105/00 ,  B29L31/00

摘要： This invention involves a new and better solution to the problems associated with the premature softening of PLA filaments in the additive manufacturing of three dimensional articles. It is based upon the finding that poly(lactic acid) filaments with high crystallinity offer much better resistance to heat-induced softening. The crystalline poly(lactic acid) filament of this invention can accordingly be used in the additive manufacturing of three dimensional articles without encountering the problems associated with premature softening, such as poor quality and printer jamming. The crystalline poly(lactic acid) filaments of this invention can also be used in additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, or leading to increased printer complexity. This invention more specifically discloses a filament for use in three-dimensional printing which is comprised of crystallized poly(lactic acid), wherein said filament has a diameter which is within the range of 1.65 mm to 1.85 mm.

公开(公告)号：US10767287B2

公开(公告)日：2020-09-08

申请号：US15531281

申请日：2016-12-27

申请人： Ronak Rajendra Gupta

发明人： Ronak Rajendra Gupta

IPC分类号： B65H51/015 ,  B65H54/02 ,  D01D5/16 ,  D01D5/22 ,  D01D7/00 ,  D02G1/02 ,  D02G3/28 ,  D02J1/22 ,  D02J1/08 ,  D02G1/08 ,  D02G1/18 ,  B65H55/00 ,  D01D5/088 ,  D02G3/36 ,  D02J1/02

摘要： A method of manufacturing multi-ply separable textured yarn, the method comprising, passing a multi-ply separable interlaced filament yarn through a texturizing unit to form a multi-ply separable draw textured yarn, wherein the multi-ply separable interlaced filament yarn is separable in to at least two separable interlaced filament yarn, wherein the interlacing of the filaments within each separable interlaced filament yarn is retained during further processing of the yarn to fabric and in the fabric.

公开(公告)号：US10689778B2

公开(公告)日：2020-06-23

申请号：US15537866

申请日：2015-12-05

申请人： TRUETZSCHLER GMBH & CO. KG ,  DSM IP ASSETS B.V.

发明人： Lassad Nasri ,  Roman Stepanyan ,  Martinus Joseph Maria Keulers

IPC分类号： D01D5/16 ,  C08G69/46 ,  D01D4/02 ,  D01F6/60 ,  D02G3/02 ,  D02G3/44 ,  D02J1/22

摘要： A process and an apparatus for production of a low-shrinkage aliphatic polyamide fibre, in which polyamide is extruded through a spinneret to form filaments, then cooled and combined to form at least one yarn. The at least one yarn is subjected to drawing between the spinneret and a pair of inlet rolls, then in a further multi-stage drawing step is subjected to 4-fold to 6-fold drawing by pairs of draw rolls. The pairs of draw rolls successively heat the yarn and at least the last pair of draw rolls has a temperature of 5° C. to 20° C. below the melting point of the yarn. The yarn is relaxed by from 6% to 10% in a subsequent at least three-stage relaxation zone and is kept in a temperature range of 5° C. to 15° C. below the melting point of the yarn, and is subsequently wound up on a reel device. The invention further relates to a yarn composed of a low-shrinkage aliphatic polyamide fibre.