Abstract:
A color-changing filament or yarn is provided that delivers fully-controllable full-spectrum response to current input. In embodiments, the filament is adapted to be woven into a textile and controlled to vary and maintain color independently of external temperature.
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.
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.
Abstract:
An upholstered comfort member, comprising a resilient comfort material and a cover fabric. The resilient comfort material comprises lignocellulosic fibres, which provides resilient properties to the resilient comfort material, and a binder at a concentration of between 1 and 30 wt%. The binder binds the lignocellulosic fibres together. The invention further relates to a method for manufacturing of such an upholstered comfort member.
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.
Abstract:
Various aspects disclosed relate to structures such as a textile, a garment, a garment component, footwear, or a footwear component. The present disclosure includes the structure having a first region having one of more first fibers. An individual first fiber includes co-extruded first and second filaments, the first filament formed of a first thermoplastic polymeric material. Due to expansion or contraction of the one or more first fibers, the first region contracts or expands on a change in relative humidity, relative to an equilibrium state of the first region prior to the change in relative humidity.
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:
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:
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.