THERMALLY DRAWN CHEMICALLY ACTIVE FIBRE DEVICE AND A METHOD OF FABRICATION THEREOF

    公开(公告)号:WO2022157539A1

    公开(公告)日:2022-07-28

    申请号:PCT/IB2021/050411

    申请日:2021-01-20

    Abstract: One aspect of the present invention relates to a method of fabricating a chemically active fibre device (1) by thermal drawing. The method comprises the steps of providing a preform, the preform comprising a support element (3) at least partially made of a first polymeric material; and carrying out a thermal drawing process of the preform to produce a thermally drawn fibre. The preform comprises one or more chemically active agents and/or biological materials configured to react with a fluid sample when the one or more chemically active agents and/or biological materials are in contact with the fluid sample. In this manner miniaturised lab-in-fibre devices can be fabricated.

    RIBBON LIKE FILAMENTS AND SYSTEMS AND METHODS FOR PRODUCING THE SAME

    公开(公告)号:WO2021203027A1

    公开(公告)日:2021-10-07

    申请号:PCT/US2021/025620

    申请日:2021-04-02

    Inventor: CASCIO, Anthony

    Abstract: Various implementations include a melt-spun filament that has a radial cross section that has two substantially parallel linear perimetrical sections and first and second curved perimetrical sections. The first curved perimetrical section extends between first ends of the linear perimetrical sections, and the second curved perimetrical section extends between second ends of the linear perimetrical sections. The curved perimetrical sections are convex. According to some embodiments, the curved perimetrical sections are semi-circular or semi-elliptical. A plurality of melt-spun filaments may be included in a bundle of filaments and/or a yarn made with the melt-spun filaments. In addition, a spinneret plate for spinning the melt-spun filaments and a method of making the melt-spun filaments is also provided.

    CORE-SHEATH FILAMENTS AND METHODS OF PRINTING AN ADHESIVE

    公开(公告)号:WO2019164678A1

    公开(公告)日:2019-08-29

    申请号:PCT/US2019/017162

    申请日:2019-02-08

    Abstract: The present disclosure provides a core-sheath filament. The core-sheath filament includes an adhesive core and a non-tacky sheath, wherein the sheath exhibits a melt flow index of less than 15 grams per 10 minutes. The present disclosure also provides a method of printing an adhesive. The method includes a) melting a core-sheath filament in a nozzle to form a molten composition, and b) dispensing the molten composition through the nozzle onto a substrate. Steps a) and b) are carried out one or more times to form a printed adhesive. The core-sheath filament includes an adhesive core and a non-tacky sheath. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process using a core-sheath filament, the article including a printed adhesive based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article including a printed adhesive, using a core-sheath filament.

    COMPOSITE POLYMER FIBRES
    8.
    发明申请
    COMPOSITE POLYMER FIBRES 审中-公开
    复合聚合物纤维

    公开(公告)号:WO2017216674A1

    公开(公告)日:2017-12-21

    申请号:PCT/IB2017/053306

    申请日:2017-06-05

    Abstract: A composite polymer fibre or filament includes a core of a polymer. The core includes a liquid active ingredient. A sheath surrounding the core is also of a polymer and acts to reduce the rate at which the liquid active ingredient is released from the core by establishing a negative concentration gradient of the liquid active ingredient from a core/sheath interface to an outer surface of the sheath. The filament can be incorporated in a multifilament yarn.

    Abstract translation: 复合聚合物纤维或长丝包含聚合物的核心。 核心包含液体活性成分。 围绕核心的外壳也是聚合物,并通过建立液体活性成分从核心/鞘界面至外表面的负浓度梯度来降低液体活性成分从核心释放的速率 鞘。 长丝可以加入复丝纱线中。

    필터여재, 이의 제조방법 및 이를 포함하는 필터모듈
    9.
    发明申请
    필터여재, 이의 제조방법 및 이를 포함하는 필터모듈 审中-公开
    过滤介质,其制造方法以及包含其的过滤器模块

    公开(公告)号:WO2017209536A1

    公开(公告)日:2017-12-07

    申请号:PCT/KR2017/005735

    申请日:2017-06-01

    Inventor: 정의영 서인용

    Abstract: 필터여재가 제공된다. 본 발명의 일 실시예에 따른 필터여재는 나노섬유를 포함하는 3차원 네트워크 구조의 섬유웹층, 및 상기 나노섬유의 외부면 적어도 일부를 피복하는 친수성 코팅층;을 포함하여 구현된다. 이에 의하면, 필터여재의 향상된 친수성으로 유량이 현저히 증가할 수 있다. 또한, 향상된 친수성이 오랜 기간 유지됨에 따라서 사용주기가 현저히 연장될 수 있다. 나아가, 친수화 과정에서 여재의 기공구조의 변경이 최소화됨에 따라서 초도에 설계한 여재의 물성이 온전히 발현될 수 있음에 따라서 내화학성, 우수한 수투과도 및 내구성을 갖는 필터여재를 통하여 수처리 분야에서 다양하게 응용될 수 있다.

    Abstract translation:

    提供过滤介质。 在根据本发明的一个实施例的过滤介质是含有wepcheung纳米纤维的三维网络结构的纤维,并且其至少覆盖所述外表面,所述纳米纤维的部分的亲水性涂层;被实现,包括。 利用这种结构,能够改善过滤器介质流量的亲水性显著增加。 另外,一种改进的亲水性,可以显著延长使用期限,根据长期保持的时间。 此外,各种水处理通过沿着具有耐化学性的过滤介质,一个优秀的可透气性和在根据初始设计的过滤器材料的物理性质的耐久性如在亲水化处理最小化过滤材料的孔隙结构的变化可被充分表达 它可以被应用。

    METHODS, PROCESSES, AND APPARATUSES FOR PRODUCING DYED AND WELDED SUBSTRATES
    10.
    发明申请
    METHODS, PROCESSES, AND APPARATUSES FOR PRODUCING DYED AND WELDED SUBSTRATES 审中-公开
    生产染色和焊接基材的方法,工艺和设备

    公开(公告)号:WO2017192779A1

    公开(公告)日:2017-11-09

    申请号:PCT/US2017/030926

    申请日:2017-05-03

    Abstract: A dyeing and welding process may be configured to convert a substrate into a welded substrate having at least some color imparted thereto via a dye and/or coloring agent by applying a process solvent having a dye and/or coloring agent therein to the substrate, wherein the process solvent interrupts one or more intermolecular force between one or more component in the substrate. The substrate may be configured as a natural fiber, such as cellulose, hemicelluloses, and silk. The process solvent may include a binder, such as dissolved biopolymer (e.g., cellulose). After application of a process solvent comprised of a dye and/or coloring agent, the substrate may be exposed to a second application of a process solvent comprised of a binder, which second application may occur before or after a process temperature/pressure zone, process solvent recovery zone, and/or drying zone.

    Abstract translation: 可以配置染色和焊接工艺,以通过施加具有染料和/或染料的处理溶剂将基材转化为具有通过染料和/或着色剂赋予其的至少一些颜色的焊接基材 着色剂施加到基材上,其中该处理溶剂中断基材中的一种或多种组分之间的一种或多种分子间力。 衬底可以被配置为天然纤维,例如纤维素,半纤维素和丝。 处理溶剂可以包括粘合剂,例如溶解的生物聚合物(例如纤维素)。 在施加由染料和/或着色剂组成的处理溶剂之后,可将基材暴露于由粘合剂组成的处理溶剂的第二次施加,第二次施加可在处理温度/压力区处理之前或之后进行 溶剂回收区和/或干燥区。

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