摘要:
A three-dimensional netted structure having an upper surface, a lower surface, two side surfaces a left end surface, and a right end surface, including at least a plurality of filaments helically and randomly entangled and thermally bonded together, wherein the filaments are formed out of a thermoplastic resin by extrusion molding followed by cooling with a liquid; and the netted structure is four-surface molded, the upper surface, the lower surface and the two side surfaces being molded. An apparatus and a method for manufacturing the three-dimensional netted structure.
摘要:
A three-dimensional netted structure having an upper surface, a lower surface, two side surfaces a left end surface, and a right end surface, including at least a plurality of filaments helically and randomly entangled and thermally bonded together, wherein the filaments are formed out of a thermoplastic resin by extrusion molding followed by cooling with a liquid; and the netted structure is four-surface molded, the upper surface, the lower surface and the two side surfaces being molded. An apparatus and a method for manufacturing the three-dimensional netted structure.
摘要:
A bulky and highly strong filament nonwoven fabric and method of manufacturing the filament nonwoven fabric which is made of conjugated filaments, whose intersections are melted and adhered, and which has a 15-35 cc/g specific volume and satisfies the following Formula (1) between strength and specific volume; Y.gtoreq.-1.25X+125 (1) wherein Y is a geometrical mean of vertical and horizontal strength per 5 cm wide and 1 g/cm.sup.2 nonwoven fabric �unit: g/(g/m.sup.2 .multidot.5 cm!; Y=(MD.times.CD).sup.1/2 where MD is vertical strength �unit: g/(g/m.sup.2 .multidot.5 cm! and CD is horizontal strength �unit: g/(g/m.sup.2 .multidot.5 cm!; and X=specific volume of a nonwoven fabric �unit: cc/g!; and wherein the conjugated filament is made of a low melting point polymer and a high melting point polymer with a difference in melting points of at least 15.degree. C., and has the low melting point polymer on at least one section of a filament surface and has crimps.
摘要:
An air gun for producing nonwoven fabrics has an inlet, a carrier path and a compressed air blow port. The air gun receives filaments spun from high speed spinning nozzles and delivers them onto a screen belt to form a web. The inlet of the air gun receives the filament from the spinning nozzle. The carrier path then puts the filament on an air flow to deliver it while the compressed air blow port is open in the midst of the carrier path to an air inlet from a compressed air source. On a downstream side of the carrier path from the compressed air blow port an exhaust path is provided. When the filament is introduced into the inlet of the air gun, a part of the air flowing into the carrier path is discharged from this exhaust path. Because the exhaust path remains open during filament introduction, a negative pressure at the filament inlet increases thereby sucking the filaments into the inlet. The exhaust path can then be closed and the filaments will be drawn and delivered under constant traction.
摘要:
In this mat consisting of filament loop aggregations, irregular form loops are formed in the upright direction by respectively winding to be coil-like many filaments coarse in the arranging intervals and made of a thermoplastic synthetic resin and are fused in the intersecting parts and the other loops are formed in the laterally fallen direction and are fused in the overlapping parts.
摘要:
One or more aspects of the disclosure provides a nonwoven fabric comprising a single layer in which the single fabric layer comprises a plurality of different fibers in which each fiber type has desired functionality. In one aspect, a system for preparing a nonwoven fabric having a single fabric layer in which the single fabric layer comprises a plurality of different fiber types, is provided. The system includes a spin beam having a zoned distribution plate disposed upstream of a spinneret, the zoned distribution plate includes a plurality of distribution apertures arranged in zones, wherein each zone is configured and arranged to extrude a plurality of polymer streams that are of a different polymer type than polymer streams extruded by an adjacent zone to the spinneret to form a single layer having two or more types of fibers that are of a different type from each other.
摘要:
A plant (1) for the production of spunbonded nonwoven (8), comprising a spinning solution production (3), a spinning system (2), a device (6) for the delivery of coagulation liquid, at least one conveying device (7, 9) for depositing the spunbonded nonwoven (8), and a collecting device (13) for the spunbonded nonwoven (8), wherein at least one discharge device (14) is provided between the device (6) for the delivery of coagulation liquid and the collecting device (13) for the spunbonded nonwoven (8).
摘要:
A system having a first polymer source and a spin beam in fluid communication with the first polymer source is provided. The spin beam includes a spinneret assembly having filament nozzles configured and arranged to extrude a plurality of filaments of a first polymer. A gas distribution plate is disposed downstream of the spinneret assembly, and includes a plurality of gas distribution slots that are configured and arranged to receive two or more corresponding filament nozzles of the spinneret assembly therein. A stream of gas is introduced into the plurality of slots to draw and attenuate the filaments extruded by the plurality of filament nozzles. The drawn and attenuated filaments are collected on a collection surface disposed downstream of the gas distribution plate to form a nonwoven fabric. A solid additive, such as pulp fibers may be blended with the filaments prior to collecting the filaments on the collection surface.
摘要:
The invention relates to a fibrous nonwoven, in particular for a filter medium, having a first layer, wherein at least one single-piece fiber strand of said first layer has a first fiber portion and a second fiber portion in the longitudinal direction, and wherein the fiber strand has a thickening substantially in said second fiber portion.