Abstract: An apparatus for producing a nonwoven fabric, including a spinneret for extruding a plurality of filaments, and a device for collecting the filaments and forming a nonwoven fabric, at least one thermal treatment device, at least one bonding device, wherein the at least one thermal treatment device includes at least one heating device configured to direct gas against said nonwoven fabric at a temperature between 80 and 190° C.

Abstract: The present invention relates to a process for producing a nonwoven fabric, comprising the steps of: (a) extruding a plurality of filaments from a spinneret; (b) depositing said filaments in a substantially not-crimped condition to make a nonwoven fabric on an element collecting the filaments; (c) heating said nonwoven fabric to crimp at least part of the filaments, so that the volume of said nonwoven fabric is increased; (d) bonding said nonwoven fabric; wherein said filaments are at least bicomponent filaments.

Abstract: The present invention relates to a process for producing a nonwoven fabric, comprising the steps of: (a) extruding a plurality of filaments from a spinneret; (b) depositing said filaments in a substantially not-crimped condition to make a nonwoven fabric on an element collecting the filaments; (c) heating said nonwoven fabric to crimp at least part of the filaments, so that the volume of said nonwoven fabric is increased; (d) bonding said nonwoven fabric; wherein said filaments are at least bicomponent filaments.

Abstract: In an apparatus for the production of a non-woven fabric of filaments, where a plurality of filaments are extruded, cooled, stretched and collected on a mobile support, the means of collecting the filaments include furthermore, a gas permeable mobile support element (28), an aspirator (29) and one or more aspiration ducts (33C-36C), the collecting means being insulated from the environment air.

Abstract: In an apparatus for the production of a non-woven fabric, a plurality of filaments (11) are extruded by a spinneret (2) into at least two groups spaced from each other to define an area of the cooling chamber without filaments and structures; the filaments are cooled by an air flow (Y) conveyed into the cooling chamber directed towards an intermediate area between said two groups of filaments, said area being located below an area of the spinneret without extrusion holes.

Abstract: In an apparatus for the production of a non-woven fabric, a plurality of filaments (11) are extruded by a spinneret (2) into at least two groups spaced from each other to define an area of the cooling chamber without filaments and structures; the filaments are cooled by an air flow (Y) conveyed into the cooling chamber directed towards an intermediate area between said two groups of filaments, said area being located below an area of the spinneret without extrusion holes.

Abstract: In an apparatus for the production of a non-woven fabric of filaments, where a plurality of filaments are extruded, cooled, stretched and collected on a mobile support, the means of collecting the filaments include furthermore, a gas permeable mobile support element (28), an aspirator (29) and one or more aspiration ducts (33C-36C), the collecting means being insulated from the environment air.

Abstract: The present invention relates to equipment/apparatus, and the relative method/process, for the treatment of synthetic filaments, in particular for drawing said filaments, comprising at least two nozzles each provided with a main passage, through which said yarns pass, having a section variable between an inlet portion and an outlet portion and into which at least one supply channel opens to supply a fluid according to a preferential direction. Advantageously, the nozzles are provided in line and the sections of the main passage of the second nozzle have an area at least 3% larger than the corresponding sections of the main passage of the first nozzle.

Abstract: The present invention relates to equipment/apparatus, and the relative method/process, for the treatment of synthetic filaments, in particular for drawing said filaments, comprising at least two nozzles each provided with a main passage, through which said yarns pass, having a section variable between an inlet portion and an outlet portion and into which at least one supply channel opens to supply a fluid according to a preferential direction. Advantageously, the nozzles are provided in line and the sections of the main passage of the second nozzle have an area at least 3% larger than the corresponding sections of the main passage of the first nozzle.

Abstract: An apparatus for extruding molten polymeric material into a plurality of filaments. The apparatus includes a pack which has a distribution plate and a circular spinneret positioned below the distribution plate. A quenching head is carried within and below the circular spinneret and includes a plurality of concentric hubs carried on a cylindrical tubular main body. Each of the concentric hubs has an upwardly inclined wall adjacent an upper portion of the hub which defines an incline annular passage which extends upwardly towards the spinneret through which quenching air is fed from the cylindrical tubular body through the passages for cooling the filaments being produced by the spinneret.