Controlled draft and efficiency filter element for smoking articles
    1.
    发明授权
    Controlled draft and efficiency filter element for smoking articles 失效
    吸烟制品的控制吃水和效率过滤元件

    公开(公告)号:US4961415A

    公开(公告)日:1990-10-09

    申请号:US3980

    申请日:1987-01-16

    IPC分类号: A24D3/08

    CPC分类号: A24D3/08 Y10S264/75

    摘要: Nonwoven web comprising thermoplastic meltblown fibers or filaments predominantly present as agglomerates or multiple fused fiber areas. Such agglomerates in the web act as columns and impart a desired degree of strength and resistance to compaction. In contrast to prior art webs where such agglomerates have been considered undesirable, the webs of the present invention find particular utility when formed into cylinders as filter plugs for smoking articles. In smoking articles of the invention, the filter plugs have a desired pressure drop while demonstrating an unexpected degree of firmness, all at an economically attractive cost. Preferred embodiments include those where the machine direction strength to cross machine direction grab tensile ratios in the range of from about 1:1 to 4:1 and the fibers or filaments are made from polypropylene. Other embodiments include webs and filter plugs containing additives distributed throughout the web.

    摘要翻译: 主要以聚集体或多个熔融纤维区域形式存在的热塑性熔喷纤维或细丝的非织造纤维网。 纤维网中的这种附聚物作为柱状物并赋予所需的强度和抗压实性。 与现有技术的网相比,其中这种附聚物被认为是不期望的,本发明的纤维网在形成为气瓶作为吸烟制品的过滤嘴时特别有用。 在本发明的吸烟制品中,过滤塞具有期望的压降,同时表现出意想不到的坚固度,所有这些都以经济上有吸引力的成本。 优选的实施方案包括其机器方向强度与机器方向抓取拉伸比在约1:1至4:1范围内并且纤维或长丝由聚丙烯制成的那些实施方案。 其它实施方案包括含有分布在整个幅材上的添加剂的网和过滤塞。

    Use-dependent indicator system for absorbent articles
    5.
    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。

    Method and apparatus for fiberizing fibrous sheets
    10.
    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。