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公开(公告)号：US20230332342A1
公开(公告)日：2023-10-19
申请号：US18200610
申请日：2023-05-23
摘要： A spunbonded nonwovens is made by first spinning thermoplastic continuous filaments and emitting them from a spinneret in a direction and then passing the filaments in the direction through a cooling chamber. Meanwhile cooling air is fed from respective manifolds flanking the chamber into the chamber to cool the filaments and the cooling air is guided into the manifolds through respective manifolds and through respective planar homogenizing elements each having a plurality of openings forming a free open surface area constituting 1 to 40% of the total surface area of the respective planar homogenizing element. The cooling air passes from the planar homogenizing element into the cooling chamber through a flow straightener.
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公开(公告)号：US20090004313A1
公开(公告)日：2009-01-01
申请号：US12146573
申请日：2008-06-26
申请人： Hans-Georg GEUS , Detlef FREY
发明人： Hans-Georg GEUS , Detlef FREY
IPC分类号： B29C55/30
CPC分类号： D04H3/16 , D01D5/0985
摘要： An apparatus for making a spunbond web has a deposition surface, a spinneret above the surface for producing filaments that move downward along a path toward the surface, and a cooling chamber below the spinneret. Cool process air is supplied to the chamber to cool the filaments as they pass downward through the chamber. A laterally closed stretching unit downstream of the cooling chamber has laterally closed side walls that have portions that diverges downward. A connecting region between the stretching unit and the cooling chamber substantially excludes access of air from outside to the filaments as they pass from the cooling chamber to the stretching unit so that the filaments drop from the stretching unit onto the deposition surface.
摘要翻译： 用于制造纺粘纤维网的装置具有沉积表面，在表面上方的喷丝板，用于产生沿着朝向表面的路径向下移动的长丝，以及在喷丝板下方的冷却室。 冷却过程中的空气被供应到室中，以便当它们向下通过室时冷却细丝。 在冷却室下游的侧向闭合的拉伸单元具有侧向封闭的侧壁，其具有向下分叉的部分。 拉伸单元和冷却室之间的连接区域在从冷却室经过拉伸单元时基本上不包括从外部到细丝的空气进入，使得长丝从拉伸单元落到沉积表面上。
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公开(公告)号：US20220205156A1
公开(公告)日：2022-06-30
申请号：US17694867
申请日：2022-03-15
摘要： A spunbonded nonwovens is made by first spinning thermoplastic continuous filaments and emitting them from a spinneret in a direction and then passing the filaments in the direction through a cooling chamber. Meanwhile cooling air is fed from respective manifolds flanking the chamber into the chamber to cool the filaments and the cooling air is guided into the manifolds through respective manifolds and through respective planar homogenizing elements each having a plurality of openings forming a free open surface area constituting 1 to 40% of the total surface area of the respective planar homogenizing element. The cooling air passes from the planar homogenizing element into the cooling chamber through a flow straightener.
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公开(公告)号：US20210031487A1
公开(公告)日：2021-02-04
申请号：US16940926
申请日：2020-07-28
申请人： Tobias WAGNER , Sebastian SOMMER , Patrick BOHL , Andreas ROESNER , Hans-Georg GEUS , Gerold LINKE , Bernd KUNZE
发明人： Tobias WAGNER , Sebastian SOMMER , Patrick BOHL , Andreas ROESNER , Hans-Georg GEUS , Gerold LINKE , Bernd KUNZE
摘要： A spunbond nonwoven laminate has a first spunbond nonwoven layer having crimped filaments formed by a first component on an outer surface of the filaments of the first layer consisting or substantially consisting of a polyolefin and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the first layer. A second outermost spunbond nonwoven layer on the first layer having filaments as a cover layer and formed by a first component on an outer surface of the filaments of the second layer consisting or substantially consisting of a polyolefin, and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the second layer.
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公开(公告)号：US20220194050A1
公开(公告)日：2022-06-23
申请号：US17694931
申请日：2022-03-15
申请人： Tobias WAGNER , Sebastian SOMMER , Patrick BOHL , Andreas ROESNER , Hans-Georg GEUS , Gerold LINKE
发明人： Tobias WAGNER , Sebastian SOMMER , Patrick BOHL , Andreas ROESNER , Hans-Georg GEUS , Gerold LINKE
摘要： A spunbond nonwoven laminate has a first spunbond nonwoven layer having crimped filaments formed by a first component on an outer surface of the filaments of the first layer consisting or substantially consisting of a polyolefin and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the first layer. A second outermost spunbond nonwoven layer on the first layer having filaments as a cover layer and formed by a first component on an outer surface of the filaments of the second layer consisting or substantially consisting of a polyolefin, and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the second layer.
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公开(公告)号：US20230021972A1
公开(公告)日：2023-01-26
申请号：US17867340
申请日：2022-07-18
IPC分类号： B29C48/345 , D01D4/02 , D01D5/098 , B29C48/05
摘要： A nozzle has a body having a face extending in a longitudinal direction and transversely thereto in a transverse direction. The nozzle plate is provided with an array of melt openings and compressed-air openings on the face in a plurality of longitudinally extending rows and a plurality of transversely extending rows. A polymer melt to the nozzle openings to extrude the polymer melt downstream from the melt openings as polymer filaments and compressed air to the compressed-air openings to form air jets issuing downstream from the compressed-air openings between the polymer filaments. Only the polymer melt and no air is supplied to the melt openings such that only the polymer melt issues from the melt openings. Only compressed air and no polymer melt is supplied to the compressed-air openings such that only the compressed air issues from the compressed-air openings.
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公开(公告)号：US20210032789A1
公开(公告)日：2021-02-04
申请号：US16940975
申请日：2020-07-28
IPC分类号： D04H3/16
摘要： A nonwoven web is made by displacing an air-permeable mesh-belt conveyor in a horizontal travel direction and spinning and then depositing crimped continuous filaments as a web at a deposit region on the air-permeable mesh-belt conveyor. A first preconsolidation stage is provided downstream of the deposit region and a second preconsolidation separated by a suction gap from the first stage. Air is drawn air through the web and the conveyor at the deposit region at a first predetermined speed, the first and second consolidation stages at a second and third predetermined speeds, and at the suction gap either not at all or at a fourth predetermined equal to at most substantially less than the second predetermined speed.
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