公开(公告)号：US09353481B2

公开(公告)日：2016-05-31

申请号：US14011337

申请日：2013-08-27

Applicant: Donaldson Company, Inc.

Inventor： Hemant Gupta ,  Brad E. Kahlbaugh

IPC: D21H13/40 ,  D04H1/42

CPC classification number: D21H13/40 ,  D04H1/42 ,  D04H1/4218 ,  D04H1/435 ,  D04H1/4382

Abstract: Embodiments for methods and apparatuses for forming a nonwoven web are described herein. In one embodiment, an apparatus includes one or more sources configured to dispense a first fluid flow stream comprising a fiber and a second fluid flow stream also comprising a fiber. The apparatus also includes a mixing partition downstream from the one or more sources, where the mixing partition is positioned between the first and second flow streams from the one or more sources. The mixing partition defines one or more openings that permit fluid communication between the two flow streams. The apparatus also includes a receiving region situated downstream from the one or more sources and designed to receive at least a combined flow stream and form a nonwoven web by collecting fiber from the combined flow stream.

Abstract translation: 本文描述了用于形成非织造纤维网的方法和装置的实施例。 在一个实施例中，装置包括被配置为分配包括纤维的第一流体流动流和还包括纤维的第二流体流的一个或多个源。 该装置还包括在一个或多个源的下游的混合分配，其中混合分隔件位于来自一个或多个源的第一和第二流动流之间。 混合分隔件限定允许两个流动流之间的流体连通的一个或多个开口。 该设备还包括位于一个或多个源的下游的接收区域，并且设计成接收至少一个组合的流动流并通过从组合的流动流收集纤维形成非织造纤维网。

公开(公告)号：US20160030868A1

公开(公告)日：2016-02-04

申请号：US14777341

申请日：2014-03-14

Applicant: DONALDSON COMPANY, INC.

Inventor： Hemant Gupta ,  Ajay Singh

IPC: B01D39/14 ,  B29C70/02 ,  B01D39/16

CPC classification number: B01D39/14 ,  B01D39/163 ,  B01D2239/0407 ,  B01D2239/0428 ,  B01D2239/0654 ,  B01D2239/086 ,  B29C70/021 ,  B29L2007/002

Abstract: Described herein are peripherally enriched fibrous media. The peripherally enriched fibrous media are nonwoven media including at least one peripheral region that is enriched in one or more binder resins, and at least one bulk region that is significantly or substantially free of binder resin, the regions being present in a single fibrous media layer. Methods of making the media and performance advantages of the media in one or more filtration applications are also described.

Abstract translation: 本文描述的是周边富集的纤维介质。 外周富集的纤维介质是非织造介质，其包括至少一个富含一种或多种粘合剂树脂的外围区域，以及显着或基本上不含粘合剂树脂的至少一个本体区域，该区域存在于单个纤维介质层 。 还描述了在一种或多种过滤应用中制备介质和介质的性能优点的方法。

公开(公告)号：US10316468B2

公开(公告)日：2019-06-11

申请号：US15886594

申请日：2018-02-01

Applicant: Donaldson Company, Inc.

Inventor： Hemant Gupta

IPC: B01D24/00 ,  D21H13/40 ,  D04H1/42 ,  D04H1/4218 ,  D04H1/435 ,  D04H1/4382 ,  D21H13/00

Abstract: A multi-faceted family of non-woven webs that can take the form of a filter media, an adaptable forming process and a machine capable of making the range of media are disclosed. The filter medium can have a first surface and a second surface defining a thickness. The medium can comprise a region having a gradient. Such a gradient is formed by having a medium wherein the concentration of a fiber, a property or other component varies from one surface to the next surface. The gradient region of the media can comprise the entire thickness of the medium or can comprise a region that comprises a portion of the media thickness. The media are characterized by the presence of a continuous change of the fiber concentration or property within the region.

公开(公告)号：US20180223478A1

公开(公告)日：2018-08-09

申请号：US15886594

申请日：2018-02-01

Applicant: Donaldson Company, Inc.

Inventor： Hemant Gupta

IPC: D21H13/40 ,  D04H1/4218 ,  D04H1/435 ,  D04H1/4382 ,  D04H1/42

CPC classification number: D21H13/40 ,  D04H1/42 ,  D04H1/4218 ,  D04H1/435 ,  D04H1/4382

Abstract: A multi-faceted family of non-woven webs that can take the form of a filter media, an adaptable forming process and a machine capable of making the range of media are disclosed. The filter medium can have a first surface and a second surface defining a thickness. The medium can comprise a region having a gradient. Such a gradient is formed by having a medium wherein the concentration of a fiber, a property or other component varies from one surface to the next surface. The gradient region of the media can comprise the entire thickness of the medium or can comprise a region that comprises a portion of the media thickness. The media are characterized by the presence of a continuous change of the fiber concentration or property within the region.

公开(公告)号：US20130340962A1

公开(公告)日：2013-12-26

申请号：US14011337

申请日：2013-08-27

Applicant: Donaldson Company, Inc.

Inventor： Hemant Gupta ,  Brad E. Kahlbaugh

IPC: D21H13/40

CPC classification number: D21H13/40 ,  D04H1/42 ,  D04H1/4218 ,  D04H1/435 ,  D04H1/4382

Abstract: Embodiments for methods and apparatuses for forming a nonwoven web are described herein. In one embodiment, an apparatus includes one or more sources configured to dispense a first fluid flow stream comprising a fiber and a second fluid flow stream also comprising a fiber. The apparatus also includes a mixing partition downstream from the one or more sources, where the mixing partition is positioned between the first and second flow streams from the one or more sources. The mixing partition defines one or more openings that permit fluid communication between the two flow streams. The apparatus also includes a receiving region situated downstream from the one or more sources and designed to receive at least a combined flow stream and form a nonwoven web by collecting fiber from the combined flow stream.

Abstract translation: 本文描述了用于形成非织造纤维网的方法和装置的实施例。 在一个实施例中，装置包括被配置为分配包括纤维的第一流体流动流和还包括纤维的第二流体流的一个或多个源。 该装置还包括在一个或多个源的下游的混合分配，其中混合分隔件位于来自一个或多个源的第一和第二流动流之间。 混合分隔件限定允许两个流动流之间的流体连通的一个或多个开口。 该设备还包括位于一个或多个源的下游的接收区域，并且设计成接收至少一个组合的流动流并通过从组合的流动流收集纤维形成非织造纤维网。