公开(公告)号：WO02068743A2

公开(公告)日：2002-09-06

申请号：PCT/FI0200120

申请日：2002-02-15

Applicant: AHLSTROM GLASSFIBRE OY ,  GEORGE JONATHAN ,  GROSSO ANDREA ,  LAINE EINO ,  RAHIALA HANNA ,  ROEKMAN KAY

Inventor： GEORGE JONATHAN ,  GROSSO ANDREA ,  LAINE EINO ,  ROEKMAN KAY

IPC: B29C39/16 ,  B29K105/04 ,  B29K105/08 ,  B29L31/14 ,  D21F11/00 ,  D04H

CPC classification number: D21F11/002

Abstract: Disclosed is a method of producing a non-woven web of fibrous or particulate material comprising: formation of a foam slurry; deposition of that slurry onto a foraminous element having a three-dimensional mold; and formation of a web having a three-dimensional shape that is not substantially planar by removal of foam from the slurry through the foraminous element and drying the web. An apparatus therefor is also disclosed. The method may be used in production a variety of products, including automotive pleated fluid and air filters, pleated heating and/or air conditioning (HVAC) filters, shaped breathing mask filters and bacterial filters, laminated cleaning products with super-absorbent middle layers, such as a mop wipe shape to fit a cleaning mop head, and other products.

Abstract translation: 公开了一种生产纤维或颗粒材料的无纺网的方法，包括：形成泡沫浆料; 该浆料沉积到具有三维模具的多孔元件上; 以及通过通过有孔元件从浆料中除去泡沫并干燥纸幅，形成具有基本不平坦的三维形状的幅材。 还公开了一种装置。 该方法可用于生产各种产品，包括汽车打褶液和空气过滤器，打褶加热和/或空调（HVAC）过滤器，成型呼吸面罩过滤器和细菌过滤器，具有超吸收性中间层的层压清洁产品， 如拖把擦拭形状，以适应清洁拖把头等产品。

公开(公告)号：WO02068743A8

公开(公告)日：2003-11-27

申请号：PCT/FI0200120

申请日：2002-02-15

Applicant: AHLSTROM GLASSFIBRE OY ,  GEORGE JONATHAN ,  GROSSO ANDREA ,  LAINE EINO ,  RAHIALA HANNA ,  ROEKMAN KAY

Inventor： GEORGE JONATHAN ,  GROSSO ANDREA ,  LAINE EINO ,  RAHIALA HANNA ,  ROEKMAN KAY

IPC: B29C39/16 ,  B29K105/04 ,  B29K105/08 ,  B29L31/14 ,  D21F11/00 ,  D04H1/00 ,  D21J3/00

CPC classification number: D21F11/002

Abstract: Disclosed is a method of producing a non-woven web of fibrous or particulate material comprising: formation of a foam slurry; deposition of that slurry onto a foraminous element having a three-dimensional mold; and formation of a web having a three-dimensional shape that is not substantially planar by removal of foam from the slurry through the foraminous element and drying the web. An apparatus therefor is also disclosed. The method may be used in production a variety of products, including automotive pleated fluid and air filters, pleated heating and/or air conditioning (HVAC) filters, shaped breathing mask filters and bacterial filters, laminated cleaning products with super-absorbent middle layers, such as a mop wipe shape to fit a cleaning mop head, and other products.

Abstract translation: 公开了一种生产纤维或颗粒材料的无纺网的方法，包括：形成泡沫浆料; 该浆料沉积到具有三维模具的多孔元件上; 以及通过通过有孔元件从浆料中除去泡沫并干燥纸幅，形成具有基本不平坦的三维形状的幅材。 还公开了一种装置。 该方法可用于生产各种产品，包括汽车打褶液和空气过滤器，打褶加热和/或空调（HVAC）过滤器，成型呼吸面罩过滤器和细菌过滤器，具有超吸收性中间层的层压清洁产品， 如拖把擦拭形状，以适应清洁拖把头等产品。

公开(公告)号：WO2002068743A3

公开(公告)日：2002-09-06

申请号：PCT/FI2002/000120

申请日：2002-02-15

Applicant: AHLSTROM GLASSFIBRE OY ,  GEORGE, Jonathan ,  GROSSO, Andrea ,  LAINE, Eino ,  RAHIALA, Hanna ,  RÖKMAN, Kay

Inventor： GEORGE, Jonathan ,  GROSSO, Andrea ,  LAINE, Eino ,  RAHIALA, Hanna ,  RÖKMAN, Kay

IPC: D04H1/00

Abstract: Disclosed is a method of producing a non-woven web of fibrous or particulate material comprising: formation of a foam slurry; deposition of that slurry onto a foraminous element having a three-dimensional mold; and formation of a web having a three-dimensional shape that is not substantially planar by removal of foam from the slurry through the foraminous element and drying the web. An apparatus therefor is also disclosed. The method may be used in production a variety of products, including automotive pleated fluid and air filters, pleated heating and/or air conditioning (HVAC) filters, shaped breathing mask filters and bacterial filters, laminated cleaning products with super-absorbent middle layers, such as a mop wipe shape to fit a cleaning mop head, and other products.

公开(公告)号：WO0220126A3

公开(公告)日：2002-05-30

申请号：PCT/FI0100761

申请日：2001-09-04

Applicant: AHLSTROM RES AND COMPETENCE CT ,  GEORGE JONATHAN ,  GROSSO ANDREA ,  PIITTALA RAIMO ,  ROEKMAN KAY ,  BACK KAJ

Inventor： GEORGE JONATHAN ,  GROSSO ANDREA ,  PIITTALA RAIMO ,  ROEKMAN KAY ,  BACK KAJ

IPC: B01D39/16 ,  B01D39/18 ,  B01D39/20 ,  B01D39/08

CPC classification number: B01D39/2058 ,  B01D39/1615 ,  B01D39/1623 ,  B01D39/18 ,  B01D39/2017 ,  B01D39/2065 ,  B01D2239/0407 ,  B01D2239/0618 ,  B01D2239/065 ,  B01D2239/10 ,  B01D2239/1258

Abstract: A non-woven filter material of fibrous material containing a reactive particulate material is made using the foam process. First and second fibrous webs are made using the foam process, and a foam slurry including reactive particulate material is provided between the webs so as to provide a composite web. Foam and liquid are withdrawn from the composite web and then the composite web is dried so as to produce a final non-woven filter material with reactive material having substantially optimum reactivity (that is the reactive material loses a minimum amount of reactivity during the web production process). The webs and slurry may be made using substantially pure water, and the particulate part of the reactive material is mixed with the foam no more than about ten seconds before the foam is withdrawn from the composite web. Activated carbon and titanium dioxide are two particularly desirable reactive particulates; the reactive loading is at least 0.01 g/cm , and the air permeability of the final filter material is at least 3000 liters per square meter per second.

Abstract translation: 使用泡沫工艺制造含有反应性颗粒材料的纤维材料的非织造过滤材料。 使用泡沫工艺制造第一和第二纤维网，并且在网之间提供包含反应性颗粒材料的泡沫浆料，以提供复合网。 将泡沫和液体从复合纤维网中取出，然后干燥复合纤维网，以便产生具有基本上最佳反应性的反应性材料的最终非织造过滤材料（即反应性材料在幅材生产期间失去最小量的反应性 处理）。 纤维网和浆料可以使用基本上纯的水制成，并且将反应性材料的颗粒部分与泡沫混合不超过约10秒钟，然后将泡沫从复合纤维网中取出。 活性炭和二氧化钛是两种特别理想的反应性颗粒; 反应负荷至少为0.01g / cm 3，最终过滤材料的透气度至少为3000升/平方米/秒。