Abstract: Methods of manufacturing an extrusion die (100) having a plurality of pins (600a-c) and a plurality of slots (601) defined by the plurality of pins, each pin having a base, the method including applying a coating material (604) over side walls of the bases of the pins of the extrusion die and removing a portion of the coating material coated over the side walls of the bases of the plurality of pins with a cutting tool (650). In some embodiments, the cutting tool has a cutting width (652) equal to a target slot width (640) of the slots. In some embodiments, applying the coating material over the side walls of the bases of the pins includes overcoating a coating material to a thickness that is greater than a thickness needed to define a target slot width of the slots.

Abstract: An extrusion head for additive manufacturing includes an enclosure defining a supply chamber. The enclosure includes at least one inlet port opening into the supply chamber and configured to receive a material to be extruded under pressure and a plurality of extrusion nozzles. Each nozzle is in communication with the supply chamber and opens onto the exterior of the enclosure via an outlet orifice. The nozzles of the plurality of nozzles are arranged adjacent to one another with a determined spacing between each nozzle outlet orifice.

Abstract: A cooling device includes a body having a flow passage for a heating medium that passes through the body, a first header made of a resin that has an inlet and covers a first end, and a second header made of a resin that has an outlet and covers a second end. The body has a front face, a back face, a first side face, and a second side face. The body and the first header are bonded to a first bonding face, a second bonding face, a third bonding face, and a fourth bonding face. The third bonding face is a curved surface that protrudes toward a +Y side. The fourth bonding face is a curved surface that protrudes toward a ?Y side.

Abstract: A synthetic fiber ball and method of manufacturing the same is disclosed. The fiber ball includes a plurality of fibers having a predetermined length bound together with a fastening fiber at a central core. The plurality of fibers extend outwardly from the fastening fiber at the central core to form a generally spherical shaped ball. The plurality of fibers are heat shrunk in a spinning oven from a generally cylindrical shaped fiber bundle having a predetermined diameter to form the fiber ball.

Abstract: An adhesive dispensing system for applying liquid adhesive to a substrate using different nozzles with the same manifold is disclosed. The adhesive dispensing system includes a manifold having a body, a first clamp configured to engage the body of the manifold, a second clamp configured to engage the body of the manifold, and a nozzle. The first and second clamps secure the nozzle to the body of the manifold. The body of the manifold has a first contact surface that engages the first clamp and a second contact surface that engages the second clamp and the nozzle, where the second contact surface is angularly offset from the first contact surface.

Abstract: A polylactic acid nano-fiber membrane and preparation method thereof. In particular, the membrane has PLA nanofibers with an average diameter between 50 nm and 200 nm, wherein the nanofibers contain a crystal phase with a volume fraction between 45% and 85% and the crystal phase contains PLA stereocomplex crystals with a volume fraction between 85% and 95%. The method of preparation includes mixing dried PDLA and PLLA in a specific PLLA/PDLA ratio of between 95/5 and 99/1; producing continuous fibers or nonwovens in a extrusion and spinning device, and producing woven fabrics or nonwovens with the continuous fibers; heat treating the woven fabrics or nonwovens; washing the heat treated woven fabrics or nonwovens with a solvent; removing the solvent and drying the woven fabrics or nonwovens; and pressing the dried woven fabrics or nonwovens for making the membrane.

Abstract: A method for manufacturing a flavor capsule of tobacco according to an embodiment of the present disclosure may comprise: a membrane manufacturing step for manufacturing a membrane of a flavor capsule by a membrane manufacturing part that manufactures a membrane; a capsule manufacturing step for manufacturing the flavor capsule using an apparatus for manufacturing a capsule with the membrane manufactured during the membrane manufacturing step and a flavored liquid to be held in the membrane; and a hardening step for hardening the flavor capsule.

Abstract: Aspects of the disclosure are directed to methods and apparatus involving the extrusion of polymers or other materials. As may be implemented in accordance with various embodiments, a polymer is delivered into an inlet of a nozzle structure having the inlet and an outlet. The polymer is viscously heated and melted by rotating the nozzle structure about an axis extending through the inlet and the outlet, therein facilitating extrusion of the melted polymer through the nozzle structure outlet. A polymer supply may deliver the polymer into the nozzle structure inlet, and a coupler may facilitation rotation of the nozzle structure. A driver may further operate to control rotation of the nozzle structure relative to the coupler, for instance by generating a rotational output that causes rotation of the nozzle structure.

Abstract: The present invention provides a process for the viable production of lyocell cellulose continuous filament yarns at very high production speeds.

Abstract: A spinneret assembly for spinning polymeric fibers, including: (a) a cap provided with an inlet port and a flared lower surface that flares outwardly from the inlet port in the direction of flow; (b) a spinneret having numerous spinning flow channels through its thickness; (c) a filter freely resting on the spinneret; and (d) a flow guide with a tapered geometry mounted in a cavity defined by the cap and the spinneret. The flow guide has an apex facing the inlet port, a base facing the filter, and one or more side surfaces tapering up to the apex. A diverging flow passage is defined by the tapering side surface(s) of the flow guide and the cap's flared lower surface. The base of the flow guide is spaced apart from an upper surface of the spinneret, creating a space that is in fluid communication with the divergent flow passage.

Abstract: The present invention relates to a tool (W) having at least one first inlet opening (E1) and at least one second inlet opening (E2), and also at least one first outlet opening (A1), at least one second outlet opening (A2) and at least one third outlet opening (A3), wherein the second outlet opening (A2) and the third outlet opening (A3) alternate with the first outlet opening (A1). The present invention further relates to a process for producing a fiber/foam composite by extruding through the tool (W) and to the use of the tool (W) for production of a fiber/foam composite by extrusion.

Abstract: A method for forming filaments that utilizes a die assembly having a single uninterrupted open area and a fluid supplied by a fluid flow path within the die assembly that is divided into at least two different fluid cavities, one of the fluid cavities present between a nozzle plate comprising the plurality of filament forming nozzles and an air plate, and another fluid cavity of the at least two different fluid cavities present between the air plate and an enclosure plate that defines the single uninterrupted open area is provided.

Abstract: A cusp die for producing melt-blown non-woven fabric is provided, defining a sagittal plane, a main extension direction on the sagittal plane, a first flank and a second flank mutually bounded by the sagittal plane and including an ejection portion extending along the main extension direction and designed to convey, in use, polymeric fluid towards an external air blade, at least one extrusion pipe configured to convey the polymeric fluid towards the ejection portion, a plurality of holes arranged in the ejection portion, placed in fluidic through connection with the extrusion pipe and communicating with the outside, wherein the holes are arranged along at least one first row and a second row that are distinct and arranged respectively at the first flank and the second flank.

Abstract: An extruder with a non-stop die change device includes an extrusion cavity, a die change device located at the outlet of the extrusion cavity, and a first die and a second die that are connected to the side wall of a housing of the die change device. A transfer channel is provided in a movable block of the die change device. When the movable block moves to a first position in the housing, the transfer channel communicates to the extrusion cavity with a first channel, and when the movable block moves to a second position in the housing, the transfer channel communicates to the extrusion cavity with a second channel. Therefore, die change and product type change can be achieved without stopping the extruder. If a die is blocked, the extruder does not need to stop for changing a new die.

Abstract: A honeycomb extrusion die body (401) including inlet (414) and exit (402) faces, and a plurality of pins (406) on the exit face (402) defining a matrix of intersecting wide slots (425) and narrow slots (427). The wide slots (425) have an exit width (W1) greater than an exit width (W2) of the narrow slots (427). The die body (401) further includes feedholes (422) at the inlet face (414) and intersecting with inlet portions (416) to the wide slots (425) and/or the narrow slots (427). Some of the pins (406) defining the wide slots (425) include a first surface indentation feature (430) that is (i) located between the inlet portion (416) and the wide slot exit and (ii) spaced away from the wide slot exit. Some of the pins (406) defining the narrow slots (427) include a second surface indentation feature (434) that is (i) located between the inlet portion and the narrow slot exit and (ii) spaced away from the narrow slot exit.

Abstract: A pack for spinning is provided with a kneading part disposed on a spinneret. The kneading part includes: an introduction plate including a plurality of first introduction holes for introducing a melted polymer; and a plurality of kneading units including a supply plate including a plurality of independent supply grooves into which the polymer introduced from the introduction holes flows and one or more supply holes disposed in each of the supply grooves, and a converging plate including a plurality of converging grooves in which a plurality of grooves into which the polymer supplied from the supply holes flows are intersected and a plurality of second introduction holes disposed in each of the converging grooves.

Abstract: A forming mold for making polyvinyl chloride foamed wood-like slats includes an inlet, an outlet, and two main flow passages symmetrically arranged with respect to a central axis. The main flow passages each have an inlet section respectively connected to the inlet and an outlet section respectively connected to the outlet. The extension direction of the inlet section of each main flow passage respectively defines with the central axis an included angle therebetween. The sum of the angles of the two included angles ranges from 44.2 to 48.8 degrees. The width of the main flow passages gradually increases from the inlet toward the outlets. The height of the main flow passages gradually reduces from the inlet toward the outlets. In this way, the forming mold of the present invention can effectively improve production efficiency and can increase the stability of the product manufacturing process.

Abstract: A noodle band cutting apparatus for cutting a noodle band having a predetermined thickness and a predetermined width with cutting devices comprises a moving mechanism and plural cutting devices. One cutting device is selected from the plural cutting devices. The selected one pair of the cutting devices is moved and fixed at a position to cut the noodle band within the moving mechanism.

Abstract: A system for creating an internal formation of a tubular structure having an inner surface via additive manufacturing. The system broadly includes a computer modeling system and an additive manufacturing system. The computer modeling system may include a processor for generating a lattice cellular component via computer-aided design software according to inputs received from a user. The processor may also generate an internal formation lattice structure based on the lattice cellular component and modify the lattice structure to follow and/or conform to the curvature of the inner surface of the outer wall of the tubular structure. The additive manufacturing system may be configured to produce the lattice structure and the tubular structure via additive manufacturing material deposited layer by layer according to the lattice structure.

Abstract: A honeycomb structure includes a central area and a reinforced outer peripheral area. A reference boundary cell with an inner wall orthogonal to an imaginary straight line, adjacent to the honeycomb center, and thinner than an outer wall adjacent to the honeycomb periphery has a reference wall different in wall thickness from the other three cell walls among the remaining four cell walls excluding the inner wall and the outer wall. The honeycomb structure includes a reference Y-shaped unit having the reference wall, the outer wall, and a cell wall. The honeycomb structure includes a plurality of Y-shaped units extending in the same directions as the reference Y-shaped unit. For every Y-shaped unit in the central area and the reinforced outer peripheral area of the honeycomb structure, the cell walls of each Y-shaped unit has an equal wall thickness.

Abstract: A molding head includes: an outer casing unit that has a top wall portion which is installed above a discharge hole and in which a plurality of shaping holes are formed, and that causes a molding surface of the top wall portion to discharge the content which has passed through the shaping holes; and an inner plate that is disposed inside the outer casing unit and defines a dispersion chamber between the inner plate and a supply surface of the top wall portion, in which a guide protrusion portion with which the content collides to be introduced to openings of the shaping holes on the molding surface side is formed on at least one of inner surfaces of the plurality of shaping holes, or in at least one of circumferential opening edge portions of the plurality of shaping holes on the supply surface side.

Abstract: A die body apparatus (101) includes a first discharge member (105) configured to be bonded with respect to a base member (103) such that aligned elongated openings (209) of the base member (103) and first discharge member (105) provide a plurality of elongated feed passages placing a plurality of feed holes (106) of the base member (103) in fluid communication with a first honeycomb network of discharge slots (415) of the first discharge member (105). In further examples, methods of assembling a die body apparatus (101) includes the step of bonding a selected discharge member (105) of at least one discharge member with respect to a base member (103). In further examples methods of extruding batch material into a honeycomb body includes the steps of bonding a selected discharge member (105) with respect to a base member (103) and extruding a quantity of batch material through the die body apparatus (101) into an extruded honeycomb body with a honeycomb network of channels.

Abstract: An inlet flow structure can comprise: a plurality of bellmouth elements, each of the plurality of bellmouth elements including a bellmouth and a diffuser; a plurality of supply plenums, each of the plurality of supply plenums surrounding a respective one of the plurality of bellmouth elements, wherein the plurality of supply plenums are divided by a wall which provides equivalent air flow to each bellmouth element. The inlet flow structure comprises an inlet plenum disposed on the plurality of supply plenums and an outlet plenum disposed on the plurality of bellmouth elements.

Abstract: Recently, we have introduced fibrous dosage forms that enable predictable microstructures with a greater range of pharmaceutically relevant properties. Presented herein, accordingly, are a method and an apparatus for the manufacture of such fibrous dosage forms. The method includes extruding a plasticized matrix through an exit port of an extrusion channel to form at least one plasticized fiber, and structuring said at least one plasticized fiber to a three dimensional structural network of fibers. The apparatus includes an internally hollow housing defining an extrusion channel, a conveying element for extruding a plasticized matrix in the extrusion channel through an exit port to form at least one plasticized fiber, and a unit for structuring said at least one plasticized fiber to a three dimensional structural network of fibers.

Abstract: A spaghetti-like long shaped pasta has a continuous internal longitudinal cavity communicating with the outside through a co-extended longitudinal slot with convex edges that delimit the internal cavity. A device for the production of such pasta includes an extrusion drawing having, at the entry front, a plurality of holes with complementarily identical openings that lead into respective channels of identical shape, configuration and size, which end in a joint discharge channel, near an edge of an expanded head. An occlusion at the outlet hole of the discharge channel includes a septum separating the delivery channels and causing the two flows of extruded pasta to join solely on a peripheral portion, opposite to the cavity edge, with the expanded head producing the internal cavity that develops longitudinally within the finished product and communicates with the outside through a co-extended cutting or fissure.

Abstract: An extruder for a three-dimensional additive printer can be used to receive and dispense material. The extruder can include a number of different components including a nozzle with an adjustable opening configured to discharge material. The nozzle can be configured to be moved and rotated so as to align the adjustable opening with a plurality of paths along which the material is configured to be deposited for generating a three-dimensional object. The adjustable opening can comprise a first orifice and an obstruction member configured to move with respect to the first orifice. The position of the obstruction member can adjust the size of the opening area of the adjustable opening.

Abstract: A perforated plate for producing granulate or microgranulate from a thermoplastic plastic material and a method of manufacturing a perforated plate for producing granulate or microgranulate from a thermoplastic plastic material, wherein the perforated plate comprises a plurality of nozzle bores. The lengths of the nozzle bores are respectively sized such that each nozzle bore of the plurality of nozzle bores allows a substantially uniform flow rate of a melt material.

Abstract: A tube mat comprises a plurality of tube portions having a tube longitudinal axis in each case and at least one web portion connecting two tube portions, the tube mat being produced in one piece.

Abstract: A nozzle plate for a granulating device. The nozzle plate has a plurality of nozzles for the passage of melt, wherein the nozzles are arranged such that they lie on a circle about a center axis. Each nozzle has a nozzle channel and at least one nozzle opening. A recess for receiving a melt flow is formed on the surface of the nozzle plate opposite the surface comprising the nozzle opening. The recess can also be centered on the center axis. A plurality of flow channels in fluid communication with the recess and at least one flow channel are formed in the nozzle plate extending radially away from the center. A granulating device having such a nozzle plate.

Abstract: A width-direction multilayer laminated film having a large area and uniform optical properties is provided. A light guide, a light diffusion film, a light collecting film, a viewing angle control film, and an optical waveguide film, which are low cost and have excellent optical properties, as well as an illuminating device, a communication device, and a display using these films. The laminated film may include at least a structure in which a layer made of resin A (layer A) and a layer made of resin B (layer B) are alternately laminated in the width direction, wherein the width of the film is 400 nm or more and the number of layer Bs, each having a cross-sectional width from 0.1 ?m to 10,000 ?m, is 10 or larger.

Abstract: A die piece for extrusion molded noodles is a die piece in which a contact angle of a water droplet on a die piece surface is 61 to 73 degrees and a water absorption of the die piece is 0.01 to 0.15% by weight after the die piece is immersed in water for 24 hours. The use of the die piece for extrusion molded noodles makes it possible to produce pasta, spaghetti, or any other extrusion molded noodles with no increase or decrease in its surface roughness (degree of surface roughness) over time and also makes it possible to stably produce, over a prolonged period of time, extrusion molded noodles having proper surface roughness.

Abstract: A pellet press for producing pellets from material which is to be compressed. In the pellet press, the biomass is compressed through the holes of the die by at least one press device comprising a roller which rolls on the die, to form pellets. The die and/or the roller move in relation to each other during the production thereof. Provides essential machine elements or modules which are simple to access and also quick to exchange. The construction and operation of the pellet press should be modular so that the production power can be variably adjusted and/or the production is independent of the repairs of individual modules. At least one press device comprising at least one roller and/or the die is arranged inside a press frame in the pellet press, the press frame being embodied in the form of at least one C-frame and/or at least one window frame.

Abstract: This invention provides a resin extrusion die capable of suppressing die drool generation and contamination of a resin molded form with generated die drool serving as foreign substances. The resin extrusion die includes a cap through which a molten resin is extruded, and a cover that includes a gas outlet for forming a gap around the tip of a discharge nozzle and covers at least part of the cap so as to form a space between the cap and the gas outlet. The gas outlet forms, around the tip of the discharge nozzle, the gap whose maximum width/minimum width ranges from 1.05 to 2.0, thereby changing a gas supplied into the cover and flowing out of the gap to a turbulent flow.

Abstract: A dough depositing machine adapted for use in the manufacture of non-traditional baked goods and methods related thereto. Non-traditional dough (e.g., gluten-free, wheat-free, dairy-free, egg-free, vegetarian, or vegan dough) may have properties that are more difficult to accommodate during manufacturing than the properties of traditional dough. Accordingly, various components of the dough depositing machine may be adapted to operate with non-traditional dough. For example, at least one of a dough delivery mechanism, a forming portion, a cutting assembly and a controller of the dough depositing machine may be adapted for use with non-traditional dough. These components of a dough depositing mechanism may be provided as originally manufactured equipment or may be retrofit to an existing dough depositing machine designed for use with traditional dough.

Abstract: A head assembly (10) is provided for use in a rotary head extruder (12) for extruding a food product. The head assembly (10) includes an annular-shaped stator plate (20) and a rotating blade plate (22). The blade plate (22) preferably includes at least six blades, each with a wedge shaped profile, and the stator plate (20) includes extrusion channels that extend at an angle in the range of 20°-50° from tangent to a circle defined by an inner surface (30) of the plate (20).

Abstract: A spinneret bundle for producing fibers from a polymer melt includes an elongated nozzle plate that has a feed channel on an upper face and at least one row of nozzle bores that are arranged next to one another on a lower face. A distributing plate lies on the upper face of the nozzle plate and has a distributing chamber that faces the feed channel and a melt inlet that is connected to the distributing chamber. A perforated plate with a plurality of through-bores is provided between the distributing chamber of the distributing plate and the feed channel of the nozzle plate in order to achieve a redistribution and uniformity of the melt when the melt is introduced into the feed channel.

Abstract: Method and extrusion die (1030) for producing a three-dimensional polymeric strand netting, wherein a plurality of the polymeric strands (1070a, 1070b, 1070c) are periodically joined together in a regular pattern at bond regions throughout the array, wherein a majority of the polymeric strands (1070a, 1070b, 1070c) are periodically bonded to at least two (three, four, five, six, or more) adjacent polymeric strands, and wherein no polymeric strands are continuously bonded to a polymeric strand. Three-dimensional polymeric strand netting described herein have a variety of uses, including wound care, tapes, filtration, absorbent articles, pest control articles, geotextile applications, water/vapor management in clothing, reinforcement for nonwoven articles, self bulking articles, floor coverings, grip supports, athletic articles, and pattern coated adhesives.

Abstract: The claimed subject matter relates to a rotary die device for producing soft capsules, comprising a capsule forming unit for forming a soft-capsule shell and a dosing unit for feeding a filling material into the capsule forming unit, characterized in that the dosing unit comprises a conveying apparatus of viscous melts and a portioner, wherein the portioner is connected at an end thereof to the conveying apparatus of viscous melts and is arranged in a filling wedge with a section in such a way that filling material from the portioner reaches the location of the capsule filling directly or by means of one or more channels having a length of at most 30 mm. Using said device, high-viscosity filling materials can be filled and thus novel soft capsules can be made accessible.

Abstract: A die plate for a die block can have a coat-hanger-shaped flow path for extruding a molten foamable thermoplastic resin in a form of a sheet. The die plate can be on a downstream side of the coat-hanger-shaped flow path to make a flow rate of the molten foamable thermoplastic resin uniform in a width direction. The die plate can have a multiplicity of delivery apertures. The delivery apertures in opposite side regions can have a diameter greater than a diameter which the delivery apertures in a center region have. A die unit can include a die block, which has a multiple bifurcated manifold terminating in plural coat-hanger-shaped flow paths at downward ends thereof, and a like plural number of similar die plates as described above. A process for producing a wide thermoplastic resin foam can use the die unit.

Abstract: In order to ensure quality of pellets by eliminating temperature differences among extrusion nozzle holes with use of a heating medium flowing through heating channels only once and flowing out through a heating medium outlet, provided is a die plate for resin granulation, in which a plate main body (1) is divided into regions (A to n) for every 360/n (n=4, 6, or 8) degrees, or into first to fourth regions (A to D) for every 90 degrees, and an inner annular heating passage (4) and an outer annular heating passage (5) are formed. A heating medium (F) supplied through a heating medium inlet (2) flows through heating channels (8) only once, and then flows out through a heating medium outlet (3) to an outside.

Abstract: A die for an underwater cutting type pelletizer, the die including a die orifice part in which a thermoplastic resin is inhibited from solidifying within the die orifices. The die can have a reduced difference in temperature between the die orifice part and an inner periphery-side fixing part for fixing the die orifice part to a mixer/extruder, and can thereby inhibit the generation of thermal stress. The die is characterized by being equipped with a heating jacket for heating the inner periphery-side fixing part, the heating jacket being disposed within the inner periphery-side fixing part along an inner annular passage formed within either the die orifice part or the inner periphery-side fixing part or both along the boundary between the die orifice part and the inner periphery-side fixing part.

Abstract: In an extruder-type noodle maker comprising a casing constituted as a cylindrical body, a screw, a nozzle unit, a connector, a hopper, and a drive unit, the nozzle unit is formed with many holes tapered in the outlet direction, an inner peripheral surface of the nozzle unit is provided with multiple engaging protrusions and depressions, an end surface of the distal end periphery of the cylindrical casing is provided at corresponding locations with multiple receiving depressions and protrusions for insertion into the engaging protrusions and depressions, and the cylindrical casing is constituted by forming a proximal end section thereof positioned under the hopper of resin and forming a distal end thereof near an outlet of metal, whereby it has a structure comprising a resin portion and a metal portion joined together.

Abstract: An insulated die plate assembly for use in underwater pelletizing and other granulation processes includes a thin, continuous air chamber formed across the plate assembly generally parallel to the die face such that the heated upstream portion of the die plate assembly is thermally insulated from the downstream portion. The air chamber is atmospherically equilibrated by venting the air chamber to the atmosphere. The plurality of extrusion orifices, either individually or in groups, are formed in extrusion orifice extensions that extend through the insulation chamber so that the process melt to be granulated can pass therethrough. The orifice extensions and the components forming the air chamber around the orifice extensions channel heat along said extensions to maintain the process melt therein at a desired temperature, to help rigidify the die plate assembly and to better seal the air chamber.

Abstract: A hollow fibre containing one or more layers having a mean pore size in one or more of said layers of less than 100?m. The invention also extends to a method for preparing porous hollow fibres and to the apparatus for preparing said fibres.

Abstract: The invention relates to a process for making high-performance polyethylene multi-filament yarn comprising the steps of making a solution of ultra-high molar mass polyethylene in a solvent; spinning of the solution through a spinplate containing a plurality of spinholes into an air-gap to form fluid filaments, while applying a draw ratio DRfluid; cooling the fluid filaments to form solvent-containing gel filaments; removing at least partly the solvent from the filaments; and drawing the filaments in at least one step before, during and/or after said solvent removing, while applying a draw ratio DRsolid, wherein in a draw ratio DRfluid=DRsp×DRag of at least 50 is applied, wherein DRsp is the draw ratio in the spinholes and DRag is the draw ratio in the air-gap, with DRsp greater than 1 and DRag at least 1. The invention further relates to a spinplate having spinholes of specific geometry.

Abstract: Embodiments of the present disclosure provide electrospinning devices, methods of use, uncompressed fibrous mesh, and the like, are disclosed.

Abstract: The invention relates to a spinneret for spinning threads from a spinning mass—in the form of a melt or solution of natural or synthetic origin—comprising a rotationally symmetrical spinneret. The rotationally symmetrical spinneret inner part is surrounded at least partially by a rotationally symmetrical outer part, wherein in the longitudinal direction between the spinneret inner part and outer part an insulating chamber is formed, in which a gas, preferably air, is received in order to form an insulating gas layer. The invention further relates to a spinning device for spinning threads from a spinning mass, comprising a spinneret part and a gas nozzle part arranged at a distance from the spinneret part. A plurality of spinnerets according to the invention are inserted in the spinneret part and project from the spinneret part, facing the gas nozzle part, and the gas nozzle part comprises a plurality of gas nozzles associated with the spinnerets.

Abstract: A solid face die plate for an underwater pelletizer includes a carrier or holding plate having a circular slot for holding a hard anti-wear element of highly wear-resistant material through which the extrusion orifices open for extruding polymer. The solid face die plate eliminates the need for insulation or plugging material in the center of the die plate and, by embedding the hard anti-wear element within the carrier, protects the edges of the hard anti-wear element for longer wear life.

Abstract: The present invention provides a nozzle plate and the use of the nozzle plate for producing filaments, preferably silica gel fibers.

Abstract: A device for meltblowing of synthetic fibers utilizes an elongated spinneret packet that is held at the bottom side of the spinneret carrier. In order to supply process air the two elongated air tubes extend at the opposite longitudinal sides of the spinneret carrier, which are connected to an air distribution device having an air channel system in the spinneret carrier. In order to avoid thermal stress in the expansion joints between the air distribution device and the spinneret carrier as much as possible, the air distribution devices are embodied by means of multiple distribution segments having an expansion joint between adjacent distribution segments.