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    Foam process web production with foam dilution
    1.
    发明授权
    Foam process web production with foam dilution 失效
    泡沫工艺网生产泡沫稀释

    公开(公告)号：US6444088B2

    公开(公告)日：2002-09-03

    申请号：US77962801

    申请日：2001-02-09

    Applicant: AHLSTROM GLASSFIBRE OY

    Inventor： ROEKMAN KAY ,  JANSSON JUHANI

    IPC: D21F1/00 ,  D21F11/00 ,  D21F1/02

    CPC classification number: D21F11/002

    Abstract: A nonwoven web of fibrous material is made by the foam process using a manifold of a particular construction. The manifold has a casing with first and second opposite ends including an inlet for a foam-fiber-surfactant slurry at the first end, and optionally a valved outlet at the second end. A center section of the manifold casing has a (e.g. rectangular) cross-section that becomes smaller moving from an inlet toward the outlet. First and second substantially closed side walls, a porous front wall having an effective length, and a back wall opposite the front wall, are provided for the center section, the walls planar or curved. Any suitable structures are provided for introducing a second (e.g. substantially fiber-free, or a fiber-foam slurry) foam into the center section through the back wall. Pressure sensors penetrating one or both of the side walls may sense the pressure within the center section, and automatically control the introduction of slurry into the inlet, withdrawal through the outlet, and/or introduction of the second foam into/through the back wall, so as to maintain the basis weight of the foam-fiber slurry passing through the front wall substantially constant along the effective length of the front wall.

    Abstract translation: 通过使用特定结构的歧管的泡沫工艺制造纤维材料的非织造纤维网。 歧管具有壳体，其具有第一和第二相对端，其包括在第一端处用于泡沫 - 纤维 - 表面活性剂浆料的入口，以及任选地在第二端处的带阀的出口。 歧管壳体的中心部分具有从入口朝向出口移动的较小的（例如矩形）横截面。 第一和第二基本封闭的侧壁，具有有效长度的多孔前壁和与前壁相对的后壁设置用于中心部分，壁面平坦或弯曲。 提供任何合适的结构，用于通过后壁将第二（例如基本上不含纤维的纤维泡沫浆料）泡沫引入中心部分。 穿过一个或两个侧壁的压力传感器可以感测中心部分内的压力，并且自动控制浆料引入入口，通过出口抽出和/或将第二泡沫引入/穿过后壁， 以便沿着前壁的有效长度保持通过前壁的泡沫纤维浆料的基重基本上恒定。

    CHOPPED STRAND NON-WOVEN MAT AND A METHOD FOR ITS PRODUCTION
    2.
    发明申请
    CHOPPED STRAND NON-WOVEN MAT AND A METHOD FOR ITS PRODUCTION 审中-公开
    CHOPPED STRAND非织造布及其生产方法

    公开(公告)号：WO0175204A3

    公开(公告)日：2002-06-20

    申请号：PCT/FI0100331

    申请日：2001-04-05

    Applicant: AHLSTROM GLASSFIBRE OY ,  ROEKMAN KAY ,  JANSSON JUHANI ,  KOSTAMO HARRI ,  BOHM JUHA

    Inventor： ROEKMAN KAY ,  JANSSON JUHANI ,  KOSTAMO HARRI ,  BOHM JUHA

    IPC: D06M15/333 ,  D04H1/58 ,  D04H13/00 ,  D06M15/55 ,  D06M101/00 ,  D21H13/14 ,  D21H13/18 ,  D21H13/24 ,  D21H13/26 ,  D21H13/40 ,  D21H13/50 ,  D21H15/00 ,  D21H15/02 ,  D21H21/16 ,  D04H1/70

    CPC classification number: D21H13/40 ,  D04H1/593 ,  D04H1/64 ,  D04H1/72 ,  D04H1/732 ,  D21H13/14 ,  D21H13/18 ,  D21H13/24 ,  D21H13/26 ,  D21H13/50 ,  D21H15/02 ,  D21H21/16 ,  Y10T442/2402 ,  Y10T442/30 ,  Y10T442/60 ,  Y10T442/614 ,  Y10T442/619

    Abstract: A non-woven mat useful for a wide variety of purposes, including forming reinforced resin products, is produced in a manner having different specific uses of, and advantages over, conventional chopped strand mats and conventional glass tissue. The mat is preferably made by the foam process (but may be made by the liquid process), and at speeds well in excess of 60 m./min., and has a substantially uniform construction even when low density (e.g. 100 g/m or less). At least 20 % (preferably at least 85 %) of the fibers are in fiber bundles with between 5-450 fibers/bundle. The fibers (typically at least 85 %) have a length between 5-100 mm, preferably 7-50 mm, substantially the same as the length of the fiber bundle they are in. The fibers are preferably held in the bundles by substantially non-water soluble sizing, such as epoxy resin or PVOH. The fibers in the bundles typically have diameters of approximately 7-500 microns, preferably about 7-35 microns. The bundles may comprise at least 10 % reinforcing fibers, such as glass, aramid or acrylic.

    Abstract translation: 用于各种目的的无纺布垫，包括形成增强树脂产品，以与常规短切纤维毡和常规玻璃纸组织不同的特定用途和优点的方式生产。 垫优选通过泡沫方法制造（但可以通过液体方法制成），并且速度优于60m /分钟，并且即使当低密度（例如100g / m 2）时也具有基本均匀的结构 <2>以下）。 至少20％（优选至少85％）的纤维是纤维束，其中5-450纤维/束。 纤维（通常为至少85％）的长度为5-100mm，优选为7-50mm，基本上与其所处的纤维束的长度相同。纤维优选通过基本上不变的纤维束保持在束中， 水溶性上浆，如环氧树脂或PVOH。 束中的纤维通常具有约7-500微米的直径，优选约7-35微米。 束可以包括至少10％的增强纤维，例如玻璃，芳族聚酰胺或丙烯酸。

    METHOD AND APPARATUS FOR FOAM CASTING USING THREE-DIMENSIONAL MOLDS
    4.
    发明申请
    METHOD AND APPARATUS FOR FOAM CASTING USING THREE-DIMENSIONAL MOLDS 审中-公开
    使用三维模型进行泡沫铸造的方法和装置

    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。

    METHOD AND APPARATUS FOR FOAM CASTING USING THREE-DIMENSIONAL MOLDS
    6.
    发明申请
    METHOD AND APPARATUS FOR FOAM CASTING USING THREE-DIMENSIONAL MOLDS 审中-公开
    使用三维模型进行泡沫铸造的方法和装置

    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。

    8.
    发明专利
    未知

    公开(公告)号：AT233345T

    公开(公告)日：2003-03-15

    申请号：AT97947753

    申请日：1997-12-18

    Applicant: AHLSTROM GLASSFIBRE OY

    Inventor： ELONEN JORMA ,  JANSSON JUHANI ,  KOSO ARTO ,  ROEKMAN KAY

    IPC: D04H1/70 ,  B01D19/00 ,  D21F11/00

    Abstract: 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
    未知

    公开(公告)号：NO20014122L

    公开(公告)日：2001-10-24

    申请号：NO20014122

    申请日：2001-08-24

    Applicant: AHLSTROM GLASSFIBRE OY

    Inventor： ROEKMAN KAY ,  JANSSON JUHANI

    IPC: D21F1/00 ,  D21F11/00 ,  D21F

    Abstract: A nonwoven web of fibrous material is made by the foam process using a manifold of a particular construction. The manifold has a casing with first and second opposite ends including an inlet for a foam-fiber-surfactant slurry at the first end, and optionally a valved outlet at the second end. A center section of the manifold casing has a (e.g. rectangular) cross-section that becomes smaller moving from an inlet toward the outlet. First and second substantially closed side walls, a porous front wall having an effective length, and a back wall opposite the front wall, are provided for the center section, the walls planar or curved. Any suitable structures are provided for introducing a second (e.g. substantially fiber-free, or a fiber-foam slurry) foam into the center section through the back wall. Pressure sensors penetrating one or both of the side walls may sense the pressure within the center section, and automatically control the introduction of slurry into the inlet, withdrawal through the outlet, and/or introduction of the second foam into/through the back wall, so as to maintain the basis weight of the foam-fiber slurry passing through the front wall substantially constant along the effective length of the front wall.

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