Eductor airforming apparatus
    1.
    发明授权
    Eductor airforming apparatus 失效
    电机气流成型装置

    公开(公告)号:US4701294A

    公开(公告)日:1987-10-20

    申请号:US818568

    申请日:1986-01-13

    摘要: The present invention provides an improved apparatus and method for forming a fibrous web. In accordance with the invention, a distributor housing delimits a fiberizing zone, and a delivery mechanism supplies a fiberizable material into the fiberizing zone. A moveable striking mechanism located in the fiberizing zone contacts the fiberizable material to initially separate the material into individual fibers. A discharging mechanism exits the fibers from the fiberizing zone into a web forming zone and toward a foraminous web forming layer. A gas delivering mechanism forces a stream of gas into the fiberizing zone to entrain the fibers therein and to eject a moving stream of the gas and fibers through the discharging mechanism into the web forming zone. The gas-fiber stream moves at a velocity sufficient to draw an induced supplementary gas flow past the discharging mechanism and toward the foraminous forming layer. A steering mechanism located in the web forming zone selectively guides the induced supplemental gas flow to direct the fibers toward selected areas of the foraminous forming layer.

    摘要翻译: 本发明提供了一种用于形成纤维网的改进的装置和方法。 根据本发明,分配器壳体限定纤维化区域,并且输送机构将可纤化材料供应到纤维化区域中。 位于纤维化区域中的可移动打击机构接触可纤化材料,以将材料初始分离成单个纤维。 排出机构将纤维从纤维化区域排出到成网区域并朝向多孔的网状物形成层。 气体输送机构迫使气流进入纤维化区以将纤维夹带在其中并将气体和纤维的移动流通过排出机构喷射到幅材形成区域中。 气体纤维流以足以将诱导的辅助气流流过排放机构并朝向多孔形成层的速度移动。 位于卷材形成区域中的转向机构选择性地引导感应的补充气流,以将纤维引向多孔形成层的选定区域。

    Method and apparatus for fiberizing fibrous sheets
    2.
    发明授权
    Method and apparatus for fiberizing fibrous sheets 失效
    纤维片纤维化的方法和装置

    公开(公告)号:US4650127A

    公开(公告)日:1987-03-17

    申请号:US696948

    申请日:1985-01-31

    摘要: A fiberizer for disintegrating fibrous sheets and a method of fiberizing using a rotor having peripheral teeth arranged within bands which extend transversely around the rotor axis is disclosed. The tooth pattern in each band is circumferentially extending and shaped approximately in a sinusoidal wave on the rotor periphery extending in the direction of rotation, and providing a substantially sinusoidal distribution of impacts against a sheet fed to an anvil in the form of simple harmonic motion along a cross direction impact line adjacent the anvil and thus transversing impacts within adjacent strips of the sheet corresponding to the bands. Individual points along the width of the fibrous sheet are periodically impulsively loaded by the impacts when they are at a period of highest response, i.e., when the initial stress level has been increased to the highest optimal stress without causing fiber damage, and producing mechanical disturbances within the sheets which cause vibrations and break interfiber bonds so as to precondition the sheet as it is fed to the anvil.

    摘要翻译: 公开了一种用于分解纤维片的纤维化机和使用具有排列在围绕转子轴线横向延伸的带内的具有周向齿的转子的纤维化方法。 每个带中的齿图沿圆周方向延伸并形成在旋转方向上延伸的转子周边上的正弦波,并以简单的谐波运动形式提供基本正弦分布 邻近砧座的横向冲击线,从而横切与片段相对应的片段的相邻条带内的冲击。 当纤维片的宽度处于最高响应时期时,即当初始应力水平增加到最高最佳应力而不引起纤维损伤并产生机械扰动时,沿着纤维片宽度的单个点周期性地被冲击加载 在片材内引起振动并破坏纤维间粘合,以便在片材被送入砧座时对片材进行预处理。

    Use-dependent indicator system for absorbent articles
    3.
    发明授权
    Use-dependent indicator system for absorbent articles 有权
    用于吸收制品的使用依赖性指示剂系统

    公开(公告)号:US06794318B2

    公开(公告)日:2004-09-21

    申请号:US09746719

    申请日:2000-12-22

    IPC分类号: B32B2704

    摘要: A use-dependent indicator system for detecting the exhaustion of an active chemical within an absorbent article is provided. The indicator system includes at least one dye component and a polymer mixture. The dye component(s) can be non-reactive and/or reactive dyes. The polymer mixture can contain a polymer, such as a latex adhesive, to facilitate control over the dissolution rate of the dye component(s). By controlling the dissolution rate of the dye component(s), an indicator system of the present invention can impart a change in color to signal the exhaustion of an active chemical incorporated within the absorbent article, such as an anti-microbial agent.

    摘要翻译: 提供了一种用于检测吸收制品内的活性化学物质耗尽的依赖用途的指示剂系统。 指示剂系统包括至少一种染料组分和聚合物混合物。 染料组分可以是非反应性和/或活性染料。 聚合物混合物可以含有聚合物,例如胶乳粘合剂,以便于控制染料组分的溶解速率。 通过控制染料成分的溶解速度,本发明的指示剂体系可赋予颜色变化,以表示吸收物品(如抗微生物剂)中引入的活性化学物质的排出。

    Process for making a hydraulically needled superabsorbent composite
material and article thereof
    8.
    发明授权
    Process for making a hydraulically needled superabsorbent composite material and article thereof 失效
    制备液压针刺超吸收复合材料及其制品的方法

    公开(公告)号:US5328759A

    公开(公告)日:1994-07-12

    申请号:US786437

    申请日:1991-11-01

    摘要: Disclosed is a process of making an superabsorbent composite material which contains a hydraulically-needled fibrous web and superabsorbent materials. The method includes the steps of providing a nonwoven fibrous web; hydraulically needling the nonwoven web to enhance its liquid distribution properties; and introducing dry superabsorbent materials into intimate bonding contact with at least one surface of the hydraulically needled fibrous web. Also disclosed is the superabsorbent nonwoven composite material made by the described process. The hydraulically needled fibrous web component of the material may contain pulp fibers, synthetic fibers, natural fibers, bicomponent fibers, continuous filaments or mixtures thereof. The superabsorbent composite material has a saturation capacity greater than about 500 percent and a wicking rate greater than about 12 centimeters per 15 minutes. The superabsorbent composite material may be used as a liquid management material in an absorbent product or absorbent structure.

    摘要翻译: 公开了一种制备含有水压针刺纤维网和超吸收材料的超吸收复合材料的方法。 该方法包括提供非织造纤维网的步骤; 液压针刺非织造纤维网以增强其液体分布性能; 并且将干燥的超吸收材料引入与液压针刺纤维网的至少一个表面紧密接合。 还公开了通过所述方法制备的超吸收性非织造复合材料。 材料的液压针刺纤维网部件​​可以含有纸浆纤维,合成纤维,天然纤维,双组分纤维,连续长丝或其混合物。 超吸收复合材料的饱和容量大于约500%,芯吸速率大于每15分钟约12厘米。 超吸收性复合材料可以用作吸收产品或吸收结构中的液体管理材料。