PROCESS AND APPARATUS FOR THE PRODUCTION OF A BULKY SPUNBOND NONWOVEN FABRIC

    公开(公告)号:US20240410095A1

    公开(公告)日:2024-12-12

    申请号:US18733770

    申请日:2024-06-04

    Inventor: Rosaldo FARE'

    Abstract: A process for producing a nonwoven fabric comprises the steps of a spinneret extruding a plurality of filaments, cooling the filaments with one or more cooling elements arranged below the spinneret, drawing the filaments in a drawing duct and laying the filaments on a movable support to form a nonwoven fabric. The process further comprises suctioning gas in a first suction device, heating the nonwoven fabric using a heated calender downstream of the first suction device to consolidate the filaments of the nonwoven fabric and to cause an increase in volume of the nonwoven fabric, suctioning gas below the movable support with a higher second suction speed, in a second suction device downstream of the heated calender, and suctioning gas below the movable support in a third suction region with a third suction speed lower than the second suction speed, by a shutter with one or more adjustable openings.

    MULTILAYER FABRIC INCLUDING A NON-WOVEN FABRIC

    公开(公告)号:US20250066966A1

    公开(公告)日:2025-02-27

    申请号:US18945292

    申请日:2024-11-12

    Applicant: FARE' S.P.A.

    Inventor: Rosaldo FARE'

    Abstract: A multilayer fabric includes a first fabric and a second fabric superimposed onto each other. The first fabric is a non-woven fabric comprising a plurality of crimped filaments, the crimped filaments including a plurality of crimps. The first and second fabrics are constrained to each other at a plurality of constraining points or zones, wherein the surface of the second fabric has an area greater than the area of the first fabric. At least one portion of the second fabric disposed between adjacent constraining points or zones, has a plurality of bulgy zones, the bulgy zones protruding outward from the surface of the multilayer fabric.

    PROCESS FOR THE PRODUCTION OF A MULTILAYER FABRIC

    公开(公告)号:US20220235502A1

    公开(公告)日:2022-07-28

    申请号:US17608663

    申请日:2020-05-11

    Applicant: FARE' S.P.A.

    Inventor: Rosaldo FARE'

    Abstract: Process for the production of a multilayer fabric comprising the steps of: (a) feeding at least a first fabric (101) and a second fabric (102) to a constraining device (15), wherein the first fabric (101) is a non-woven fabric, comprising a plurality of filaments adapted to be crimped, preferably bicomponent filaments; (b) constraining said first and said second fabric (102) to each other, so that to define a plurality of constraining points or zones (P) between said first fabric (101) and said second fabric, and so that said first and second fabric (102) are superimposed; (c) heating said first and second fabric (102), so that the filaments of the first fabric (101) develop a crimp, thus increasing the thickness of the first fabric (101) and shrinking the length and the width of the first fabric (101), the shrinking of the first fabric (101) being greater than the shrinking of the second fabric (102).

    SPINNING HEAD AND RELATIVE APPARATUS FOR THE PRODUCTION OF FILAMENTS

    公开(公告)号:US20250003114A1

    公开(公告)日:2025-01-02

    申请号:US18755934

    申请日:2024-06-27

    Inventor: Rosaldo FARE'

    Abstract: A spinning head comprises a feed channel for feeding material to be extruded, a distribution chamber, and an extrusion surface having a plurality of extrusion holes, wherein the distribution chamber comprises a lower surface and an upper surface opposite said lower surface, wherein the distance between the upper surface and the lower surface of the distribution chamber is reduced. The distance reduction may be a substantially continuous reduction or a discontinuous reduction in which, in the upper surface, a plurality of first portions substantially parallel to the lower surface alternate with a plurality of second portions inclined with respect to the lower surface.

    SPINNING HEAD AND RELATED APPARATUS FOR THE PRODUCTION OF FILAMENTS

    公开(公告)号:US20250116037A1

    公开(公告)日:2025-04-10

    申请号:US18481432

    申请日:2023-10-05

    Inventor: Rosaldo FARE'

    Abstract: Apparatus (1) for producing a nonwoven fabric comprising a spinneret (2) and a mechanical drawing device (5) which comprises primary rollers and secondary rollers (21, 22) which are constrained to a frame (50) such that, considering a condition of use, said secondary rollers (21, 22) are movable with respect to said primary rollers (11, 12, 13) between a first position of operational disengagement from said filaments (3), and a second drawing position of said filaments (3).

    PROCESS AND AN APPARATUS FOR THE PRODUCTION OF A VOLUMINOUS NONWOVEN FABRIC

    公开(公告)号:US20210102319A1

    公开(公告)日:2021-04-08

    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.

    PROCESS AND APPARATUS FOR PRODUCING A VOLUMINOUS NONWOVEN FABRIC

    公开(公告)号:US20240141570A1

    公开(公告)日:2024-05-02

    申请号:US18318751

    申请日:2023-05-17

    Inventor: Rosaldo FARE'

    Abstract: Provided is a process for producing a nonwoven fabric. The process includes extruding a plurality of filaments from a spinneret, the filaments being at least bicomponent filaments; depositing the filaments to form a nonwoven fabric on an element collecting the filaments; performing a bonding of the nonwoven fabric; increasing the thickness of the nonwoven fabric by crimping at least part of the filaments by heating the nonwoven fabric; and, preferably performing a setting of the nonwoven fabric, wherein the bonding and the increasing the thickness steps are performed substantially simultaneously by means of a heated calendar. Also provided is the nonwoven fabric formed using the process and an apparatus for carrying out the process.

    APPARATUS AND PROCESS FOR PRODUCING A NONWOVEN FABRIC

    公开(公告)号:US20230257921A1

    公开(公告)日:2023-08-17

    申请号:US18101738

    申请日:2023-01-26

    Inventor: Rosaldo FARE'

    CPC classification number: D04H3/16 D01D4/02 D01D10/02

    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).

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