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    Method of forming a fibrous web using a variable transverse webber
    53.
    发明授权
    Method of forming a fibrous web using a variable transverse webber 失效
    使用可变横向网织物形成纤维网的方法

    公开(公告)号：US4921659A

    公开(公告)日：1990-05-01

    申请号：US297728

    申请日：1989-01-17

    申请人： Gerald M. Marshall ,  Allan P. Farrington

    发明人： Gerald M. Marshall ,  Allan P. Farrington

    IPC分类号： A61F13/15 ,  D04H1/72

    CPC分类号： D04H1/72 ,  A61F13/15658

    摘要： A web or structure is formed by feeding separate supplies of fibrous material into contact with two separate lickerins that are parallel to each other and rotated toward each other. The fibers from the two lickerins pass through a mixing zone and are accumulated on a moving conveying screen that is moved parallel to the axes of the lickerins. Segmented baffle plates may be inserted into the mixing zone to control the lateral or cross-sectional composition of a web formed by the fibers accumulated on the screen. A segmented feed may be used to advantageously deliver different fiber materials at different rates to each lickerin. Radially layered composite web structures having circular cross-sections may be formed with the same apparatus by forming the conveying screen into a U-shape and selectively controlling the air flow through the screen.

    摘要翻译： 通过将分开的纤维材料供给与彼此平行并彼此相对旋转的两个单独的刺针相接触而形成网或结构。 来自两个刺针的纤维通过混合区并且积聚在平行于刺针的轴线移动的移动的输送筛上。 分段的挡板可以插入混合区域中以控制由积累在筛网上的纤维形成的腹板的横向或横截面组成。 可以使用分段饲料来有利地以不同的速率将不同的纤维材料递送到每个刺针。 可以通过将输送筛网形成为U形并且选择性地控制通过筛网的空气流动而以相同的装置形成具有圆形横截面的径向层状复合网状结构。

    Moisturizing mat and process for making the same
    55.
    发明授权
    Moisturizing mat and process for making the same 失效
    保湿垫和制作相同的工艺

    公开(公告)号：US4219600A

    公开(公告)日：1980-08-26

    申请号：US1801

    申请日：1979-01-08

    申请人： Philip Surowitz ,  William L. Wetzel

    发明人： Philip Surowitz ,  William L. Wetzel

    IPC分类号： A01G27/04 ,  B32B27/12 ,  A01G7/00 ,  B32B5/26 ,  B32B7/14 ,  B32B27/14

    CPC分类号： B32B27/12 ,  A01G27/04 ,  Y10T428/2481 ,  Y10T428/24826 ,  Y10T442/159

    摘要： A moisturizing mat, and process for making it, are disclosed. The moisturizing mat is suitable for use as a base to promote trickle watering of plants in greenhouses. The mat comprises a wood pulp/fabric layer having an impervious plastic film backing layer. The moisturizing mat is produced by a process including the steps of (a) depositing wood pulp on a first fibrous layer, (b) placing a second fibrous layer on top of the wood pulp, (c) bonding the product of step (b), and (d) bonding an impervious plastic film to one face of the product of step (c).

    摘要翻译： 公开了一种保湿垫及其制造方法。 保湿垫适用于促进植物在温室中滴灌的基础。 垫包括具有不透水塑料膜背衬层的木浆/织物层。 通过包括以下步骤的方法制备保湿垫：（a）在第一纤维层上沉积木浆，（b）将第二纤维层放置在木浆的顶部，（c）将步骤（b）的产物 ，和（d）将不透水的塑料膜粘合到步骤（c）的产物的一个面上。