摘要:
A method of enrobing a product portion in polymer strands includes mounting at least one product portion on a holding device and passing the at least one product portion through a polymer enrobing zone. The polymer enrobing zone can include a flow of polymeric fibers produced by a polymer spray head. The polymer fibers can wraparound the at least one product portion to produce an enrobed product portion. The holding device can hold the at least one product portion by passing at least partially through the body of the product portion. At least a portion of the holding device is removed from the enrobed product portion. In some cases, the at least one product portion includes smokeless tobacco.
摘要:
The present invention relates to a porous sheet and a method for manufacturing the porous sheet. A porous sheet including a fine-fiber web layer and a support layer and a method for manufacturing the same are provided, and it is possible to implement a porous sheet with sufficient strength and thickness to be used in peeling and laminating processes of a multilayer ceramic capacitor.
摘要:
A process of forming a tissue scaffold is described, the process comprising electrospinning polymer fibers from a spinneret onto a tissue scaffold template. In embodiments, the fibers are plasma-treated between the spinneret and the template. The scaffold may be constructed of alternating layers of aligned and randomly oriented fibers. The scaffold may be heat treated to control the mechanical properties of the scaffold, such as density, pore size and pore interconnectivity.
摘要:
The invention relates to a membrane implant for the treatment of vascular malformations, said implant being implantable by endovascular methods into the vessel to be treated, wherein the membrane implant consists of an expandable stent (4) and a membrane (3, 5, 11, 2) connected with the stent (4), with said membrane (3, 5, 11, 4) covering the meshes of the stent (4) at least in a central region, wherein said membrane (2, 3, 5, 11) is provided in the form of a non-woven fabric comprising plastic fibrils, and the membrane (2, 3, 5, 11) forms an integral bond with the stent (4) and, at least partially, is of porous design.
摘要:
This application is directed to a device comprising a covering attached to the device. A process of making a device with a specific covering attached is also disclosed. The application further discloses a method for the treatment of perforations, fistulas, ruptures, dehiscence and aneurisms in luminal vessels and organs of a subject.
摘要:
A laminated porous film having a shutdown (SD) property and a high breakdown (BD) property combined includes at least two layers, which are a porous membrane layer (A layer) having a thickness of 10 μm or greater other than non-woven fabric and a non-woven fabric layer (B layer) having a fiber diameter of 1 μm or less. A value of the ratio (AP1/AP2) between air permeability when heating at a heating temperature of 150° C. to 200° C. for three minutes (AP1) and air permeability prior to heating (AP2) is 10 or greater at any heating temperature between 150° C. and 200° C.
摘要:
A nanofiber manufacturing system in which nanofiber is formed from a raw material liquid by electrostatic explosions in a nanofiber forming space and the formed nanofiber is collected and deposited on a main surface of a base sheet. The system includes: a first dielectric belt having dielectric property; sheet conveying devices for conveying the base sheet in the nanofiber forming space; a sheet contacting device for putting a back surface of the base sheet and a first surface of the first dielectric belt into contact with each other; a dielectric belt driving device for running the first dielectric belt in a conveyance direction of the base sheet within the nanofiber forming space while the first surface is kept in contact with the back surface of the base sheet; and a voltage applying device for applying a voltage to the second surface of the first dielectric belt so that dielectric polarization occurs to the first dielectric belt.
摘要:
A method for making a graft layer is provided. The graft layer has at least two layers with different porosities. The two layers are applied by electrospinning. The parameters of the electrospinning may be varied when applying the first and second layers in order to achieve different porosities of the first and second layers.
摘要:
The invention relates to a method for providing a surface of a fiber based substrate with a barrier layer wherein the barrier layer is formed by depositing nanofibers on the surface by the use of electrospinning or meltspinning and wherein the film is formed by post treatment of the substrate. The invention further relates to a substrate comprising such a carrier layer.
摘要:
The invention relates to a linear fibre formation comprising nanofibres deposited on a linear fibre core, at the same time the nanofibres are to the core fixed with a coil of at least one covering thread. The invention further relates to a method and a device for production of a linear fibre formation comprising a linear fibre core, on which in a spinning space of an electric field of high intensity the nanofibres produced through electrostatic spinning of polymer matrix are deposited. Through the spinning space of the electric field at least two straight segments of the linear fibre core are guided, between which the core outside the spinning space of electric field is guided at least along a section of circumference of the guiding cylinder, while in projection into a plane being tangential to circumference of the guiding cylinder and passing the respective segment of the core, this segment of the core and longitudinal axis of the guiding cylinder contain an acute angle.