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1. 发明申请

WO1998027276A1 USING CENTRIFUGAL PUMPS IN THE FOAM PROCESS OF PRODUCING NON-WOVEN WEBS 审中-公开
标题翻译：在生产非织造布的泡沫过程中使用离心泵
公开(公告)号：WO1998027276A1
公开(公告)日：1998-06-25
申请号：PCT/FI1997000804
申请日：1997-12-18
申请人： AHLSTROM PAPER GROUP OY
发明人： AHLSTROM PAPER GROUP OY , ELONEN, Jorma , JANSSON, Juhani , KOSO, Arto , RÖKMAN, Kay
IPC分类号： D21F11/00
CPC分类号： D21F11/002 , B01D19/0052
摘要： A non-woven web of fibrous material is produced using a moving foraminous element in the practice of the foam process. A first foam slurry of air, water, fibers and a surfactant is generated and centrifugally pumped into contact with the moving foraminous element. Substantially fiber-free foam is withdrawn from the foraminous element while forming a non-woven web of fibrous material on the foraminous element, and at least a part of the substantially fiber-free foam is used in the generation of the first foam slurry. Recycling is also typically practiced using a centrifugal pump, and the centrifugal pumps are preferably degassing pumps which remove some of the gas from the foam. By practicing the invention it is possible to produce fibrous webs using the foam process that are more than two meters wide, and at a forming speed of more than about 100 m/min (e.g. about 200-500 m/min).
摘要翻译：在泡沫过程的实践中，使用移动的有孔元素制造纤维材料的无纺网。产生空气，水，纤维和表面活性剂的第一泡沫浆料并离心泵送与移动的有孔元素接触。在多孔元素上形成纤维材料的无纺织物网时，从多孔元素中取出基本上无纤维的泡沫，并且在产生第一泡沫浆料中使用至少一部分基本上不含纤维的泡沫。回收也通常使用离心泵进行，离心泵优选是脱泡泵，其从泡沫中去除一些气体。通过实施本发明，可以使用超过两米宽并且成形速度大于约100m / min（例如约200-500m / min）的泡沫工艺来生产纤维网。

2. 发明授权

US6019871A Effective utilization of sap in producing non-woven webs using the foam process 失效
标题翻译：使用泡沫工艺有效利用树脂生产无纺网
公开(公告)号：US6019871A
公开(公告)日：2000-02-01
申请号：US69957
申请日：1998-04-30
申请人： Kay Rokman , Juhani Jansson , Eino Laine
发明人： Kay Rokman , Juhani Jansson , Eino Laine
IPC分类号： D21F11/00 , D21H23/02
CPC分类号： D21F11/002 , D21F11/00
摘要： The foam process is used to make non-woven webs from cellulose or synthetic fibers, which webs have as a component super absorbent polymer (SAP). In order to minimize water absorbency by the SAP, it may have a protective coating that dissolves only after in contact with water a few seconds; the SAP may be frozen (e.g. to about -18.degree. C.); and/or the SAP may be transported by highly chilled (e.g. about 1.degree. C.) water. The SAP, and liquid or foam carrier, is fed as a small volume flow into a conduit carrying a high volume flow of a fiber containing foam slurry, just before a foraminous element. A mechanical mixer may be provided in the conduit for mixing the SAP with the fiber-foam slurry. The addition of the SAP to the carrier fluid takes place no more than ten seconds (preferably no more than five seconds) before the fiber-foam slurry mixed with SAP is brought into operative association with one or more foraminous elements. The SAP in the formed web, before drying, has a dry content of at least 20% (typically between about 30-40+%).
摘要翻译：泡沫工艺用于由纤维素或合成纤维制造无纺纤维网，该纤维网具有作为高吸水性聚合物（SAP）的组分。为了最大限度地减少SAP的吸水性，它可能具有仅在与水接触几秒后溶解的保护涂层; SAP可以被冷冻（例如至约-18℃）; 和/或SAP可以通过高度冷却（例如约1℃）的水来运输。将SAP和液体或泡沫载体以小体积流量输送到携带具有大体积流动的含有泡沫浆料的纤维的管道中，恰好在有孔元素之前。可以在管道中提供机械混合器，以将SAP与纤维泡沫浆料混合。在与SAP混合的纤维泡沫浆料与一种或多种有孔元素有效结合之前，将SAP加入到载体流体中不超过10秒（优选不超过5秒）。在干燥之前，所形成的纤维网中的SAP具有至少20％（通常约30-40％）之间的干含量。

3. 发明授权

US5904809A Introduction of fiber-free foam into, or near, a headbox during foam process web making 失效
标题翻译：在泡沫制造过程中将无纤维泡沫引入流浆箱或其附近
公开(公告)号：US5904809A
公开(公告)日：1999-05-18
申请号：US923250
申请日：1997-09-04
申请人： Kay Rokman , Juhani Jansson
发明人： Kay Rokman , Juhani Jansson
IPC分类号： D21F1/02 , D21F1/08 , D21F11/00
CPC分类号： D21F11/002 , D21F1/08
摘要： In a foam laid process for producing a non-woven web of fibrous material (such as of synthetic or cellulose fibers) substantially fiber free foam is introduced at various locations in or adjacent to a headbox to get improved results. By introducing pure foam into the foam-fiber mixture near (e.g. just before) where the foam-fiber mixture is introduced into the headbox a more uniform basis weight profile of the non-woven web produced may be provided (e.g. a basis weight variation of about 0.5% or less). By introducing another stream of substantially fiber free foam into the headbox at a surface remote from the foraminous element, to flow along the surface (typically parallel to the flow of the foam fiber mixture), it is possible to minimize shear of fibers in the headbox so that the fibers do not become unidirectional, in the direction of movement of the foraminous element, and keep the surface clean. The surface is typically a roof surface of an inclined headbox.
摘要翻译：在用于生产纤维材料（例如合成纤维或纤维素纤维）的无纺网的泡沫成形方法中，将基本上无纤维泡沫引入到流浆箱中或邻近流浆箱中的各个位置以获得改进的结果。通过将泡沫纤维混合物引入到流浆箱中（例如刚刚之前）将泡沫纤维混合物引入泡沫纤维混合物中，可以提供所生产的非织造网的更均匀的基重分布（例如，约0.5％以下）。通过在远离有孔元素的表面上将另外的基本上无纤维泡沫的流引入流浆箱中，沿着表面（通常平行于泡沫纤维混合物的流动）流动，可以使流浆箱中的纤维的剪切最小化使得纤维在多孔元素的移动方向上不变为单向的，并且保持表面清洁。表面通常是倾斜流浆箱的屋顶表面。

4. 发明专利

BR9714476A 未知
公开(公告)号：BR9714476A
公开(公告)日：2000-05-16
申请号：BR9714476
申请日：1997-12-18
申请人： AHLSTROM PAPER GROUP OY
发明人： ELONEN JORMA , JANSSON JUHANI , KOSO ARTO , KMAN KAY R
IPC分类号： D04H1/70 , B01D19/00 , D21F11/00
摘要： A non-woven web of fibrous material is produced using a moving foraminous element in the practice of the foam process. A first foam slurry of air, water, fibers and a surfactant is generated and centrifugally pumped into contact with the moving foraminous element. Substantially fiber-free foam is withdrawn from the foraminous element while forming a non-woven web of fibrous material on the foraminous element, and at least a part of the substantially fiber-free foam is used in the generation of the first foam slurry. Recycling is also typically practiced using a centrifugal pump, and the centrifugal pumps are preferably degassing pumps which remove some of the gas from the foam. By practicing the invention it is possible to produce fibrous webs using the foam process that are more than two meters wide, and at a forming speed of more than about 100 m/min (e.g. about 200-500 m/min).

5. 发明专利

FI107285B 未知
公开(公告)号：FI107285B
公开(公告)日：2001-06-29
申请号：FI980436
申请日：1998-02-26
申请人： AHLSTROM PAPER GROUP OY
发明人： ROEKMAN KAY , SUURNAEKKI RAINE
IPC分类号： F04C13/00 , F04C2/14

6. 发明专利

NO993017D0 未知
公开(公告)号：NO993017D0
公开(公告)日：1999-06-18
申请号：NO993017
申请日：1999-06-18
申请人： AHLSTROM PAPER GROUP OY
发明人： ELONEN JORMA , JANSSON JUHANI , KOSO ARTO , R KMAN KAY
IPC分类号： D04H1/70 , B01D19/00 , D21F11/00 , D21F
摘要： A non-woven web of fibrous material is produced using a moving foraminous element in the practice of the foam process. A first foam slurry of air, water, fibers and a surfactant is generated and centrifugally pumped into contact with the moving foraminous element. Substantially fiber-free foam is withdrawn from the foraminous element while forming a non-woven web of fibrous material on the foraminous element, and at least a part of the substantially fiber-free foam is used in the generation of the first foam slurry. Recycling is also typically practiced using a centrifugal pump, and the centrifugal pumps are preferably degassing pumps which remove some of the gas from the foam. By practicing the invention it is possible to produce fibrous webs using the foam process that are more than two meters wide, and at a forming speed of more than about 100 m/min (e.g. about 200-500 m/min).

7. 发明专利

AU5400398A Using centrifugal pumps in the foam process of producing non-woven webs 未知
公开(公告)号：AU5400398A
公开(公告)日：1998-07-15
申请号：AU5400398
申请日：1997-12-18
申请人： AHLSTROM PAPER GROUP OY
发明人： ELONEN JORMA , JANSSON JUHANI , KOSO ARTO , ROKMAN KAY
IPC分类号： D04H1/70 , B01D19/00 , D21F11/00
摘要： A non-woven web of fibrous material is produced using a moving foraminous element in the practice of the foam process. A first foam slurry of air, water, fibers and a surfactant is generated and centrifugally pumped into contact with the moving foraminous element. Substantially fiber-free foam is withdrawn from the foraminous element while forming a non-woven web of fibrous material on the foraminous element, and at least a part of the substantially fiber-free foam is used in the generation of the first foam slurry. Recycling is also typically practiced using a centrifugal pump, and the centrifugal pumps are preferably degassing pumps which remove some of the gas from the foam. By practicing the invention it is possible to produce fibrous webs using the foam process that are more than two meters wide, and at a forming speed of more than about 100 m/min (e.g. about 200-500 m/min).

8. 发明专利

ZA9711361B Using centrifugal pumps in the foam process of producing non-woven webs 未知
公开(公告)号：ZA9711361B
公开(公告)日：1998-07-01
申请号：ZA9711361
申请日：1997-12-18
申请人： AHLSTROM PAPER GROUP OY
发明人： ELONEN JORMA , JANSSON JUHANI , KOSO ARTO , ROKMAN KAY
IPC分类号： B01D19/00 , D21F11/00 , D04H , D21F
摘要： A non-woven web of fibrous material is produced using a moving foraminous element in the practice of the foam process. A first foam slurry of air, water, fibers and a surfactant is generated and centrifugally pumped into contact with the moving foraminous element. Substantially fiber-free foam is withdrawn from the foraminous element while forming a non-woven web of fibrous material on the foraminous element, and at least a part of the substantially fiber-free foam is used in the generation of the first foam slurry. Recycling is also typically practiced using a centrifugal pump, and the centrifugal pumps are preferably degassing pumps which remove some of the gas from the foam. By practicing the invention it is possible to produce fibrous webs using the foam process that are more than two meters wide, and at a forming speed of more than about 100 m/min (e.g. about 200-500 m/min).

9. 发明专利

FI980436A0 未知
公开(公告)号：FI980436A0
公开(公告)日：1998-02-26
申请号：FI980436
申请日：1998-02-26
申请人： AHLSTROM PAPER GROUP OY
发明人： ROEKMAN KAY , SUURNAEKKI RAINE
IPC分类号： F04C13/00 , F04D

10. 发明专利

NO993017L 未知
公开(公告)号：NO993017L
公开(公告)日：1999-08-18
申请号：NO993017
申请日：1999-06-18
申请人： AHLSTROM PAPER GROUP OY
发明人： ELONEN JORMA , JANSSON JUHANI , KOSO ARTO , ROEKMAN KAY
IPC分类号： D04H1/70 , B01D19/00 , D21F11/00 , D21F
摘要： A non-woven web of fibrous material is produced using a moving foraminous element in the practice of the foam process. A first foam slurry of air, water, fibers and a surfactant is generated and centrifugally pumped into contact with the moving foraminous element. Substantially fiber-free foam is withdrawn from the foraminous element while forming a non-woven web of fibrous material on the foraminous element, and at least a part of the substantially fiber-free foam is used in the generation of the first foam slurry. Recycling is also typically practiced using a centrifugal pump, and the centrifugal pumps are preferably degassing pumps which remove some of the gas from the foam. By practicing the invention it is possible to produce fibrous webs using the foam process that are more than two meters wide, and at a forming speed of more than about 100 m/min (e.g. about 200-500 m/min).

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