-
公开(公告)号：US11761129B2
公开(公告)日：2023-09-19
申请号：US16595990
申请日：2019-10-08
Applicant: FARE′ S.p.A.
Inventor： Rosaldo Fare'
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.-
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).
-
Search Results
2
records
(took 0.008 seconds)
