公开(公告)号：US12054865B2

公开(公告)日：2024-08-06

申请号：US18101738

申请日：2023-01-26

Applicant: FARE' S.P.A. a Socio Unico

Inventor： Rosaldo Fare'

IPC: D01D5/088 ,  B01D46/00 ,  B01D46/24 ,  D01D4/02 ,  D01D5/092 ,  D01D5/098 ,  D01D10/02 ,  D04H3/03 ,  D04H3/16

CPC classification number: D04H3/16 ,  B01D46/0047 ,  B01D46/2407 ,  B01D46/2411 ,  D01D4/02 ,  D01D10/02 ,  B01D2273/30 ,  B29C2791/006

Abstract: Apparatus (1) for producing nonwoven fabrics, comprising: a spinneret (2) comprising an extrusion surface (2a) having at least one first group (4) of extrusion holes (3) and a second group (5) of extrusion holes (4); cooling elements (15, 15′); suction elements (7, 8, 9, 10, 11, 12, 13, 14); drawing elements to draw said filaments (100); wherein said suction elements (7, 8, 9, 10, 11, 12, 13, 14) comprise a plurality of first suction channels (7) forming corresponding openings (7a) on said extrusion surface (2a), which are arranged between the first group (4) and the second group (5) of extrusion holes (3), said first channels (7) being fluidically connected to a first chamber (8) made in said spinneret (2), the suction elements (7, 8, 9, 10, 11, 12, 13, 14) comprising one or more second suction channels (9) configured to suction gas from said first chamber (8).