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    Nonwoven web material for medical towels and the like
    1.
    发明授权
    Nonwoven web material for medical towels and the like 失效
    用于医用毛巾等的非织造网材料

    公开(公告)号：US4319956A

    公开(公告)日：1982-03-16

    申请号：US159681

    申请日：1980-06-16

    申请人： Charles E. Snyder ,  Colin Elston

    发明人： Charles E. Snyder ,  Colin Elston

    IPC分类号： D04H1/64 ,  A61L15/42 ,  D04H1/587 ,  D21H17/35 ,  D21H3/44

    CPC分类号： D21H17/35 ,  A61L15/42 ,  D04H1/587 ,  D04H1/64 ,  Y10T442/692

    摘要： A new and improved, highly absorbent, nonwoven web material that exhibits a cytotoxicity level of zero is provided for use as a disposable medical towel and the like. The web material possesses a unique combination of physical properties, such as absorbent holding capacity equal to or greater than present commercially available products, rapid rewettability, high wet tensile strength, high delamination resistance and superior wet abrasion resistance. This unique material includes a water laid nonwoven base web saturated with an inherently hydrophobic latex binder containing up to 2 percent by weight of a polyol surfactant.

    摘要翻译： 提供展示细胞毒性水平为零的新的和改进的，高吸收性非织造纤维网材料用作一次性医用毛巾等。 纤维网材料具有物理性质的独特组合，例如等于或大于目前市售产品的吸收保持能力，快速再润湿性，高湿拉伸强度，高耐分层性和优异的耐湿磨损性。 这种独特的材料包括用含有高达2重量％的多元醇表面活性剂的固有的疏水性胶乳粘合剂饱和的无水网布。

    Heat seal fibrous web and method of its manufacture
    3.
    发明授权
    Heat seal fibrous web and method of its manufacture 失效
    热封纤维网及其制造方法

    公开(公告)号：US4289580A

    公开(公告)日：1981-09-15

    申请号：US93441

    申请日：1979-11-13

    申请人： Colin Elston ,  Herbert A. Hoffman ,  H. Joseph Murphy

    发明人： Colin Elston ,  Herbert A. Hoffman ,  H. Joseph Murphy

    IPC分类号： D21F11/04 ,  D04H1/04 ,  D04H1/54 ,  D21H13/14 ,  D21H21/24 ,  D21H23/28 ,  D21H23/50 ,  D21H27/02 ,  D21H27/08 ,  D21H5/02

    CPC分类号： D21H27/08 ,  D21H13/14 ,  D21H21/24 ,  D21H23/28 ,  D21H23/50 ,  D21H27/02

    摘要： Improved infusion web material for tea bags and the like is provided by using synthetic pulp in the heat seal phase and forming therein an array of a large number of small discrete craters. These craters, which exhibit an average planar area of at least about 1.times.10.sup.-3 square centimeters, are formed prior to drying the initially formed multi-phase material by directing a low impact mist-like liquid spray onto the heat seal phase. The droplets from the spray displace the fibers to form the shallow craters and, at times, expose portions of the underlying non-heat seal fiber phase. The small craters are present throughout the heat seal phase at a concentration of at least about 40 per square centimeter and occupy about 10-75 percent of the total exposed surface area of the heat seal fiber phase of the material. The web also is treated with a surfactant.

    摘要翻译： 通过在热封相中使用合成纸浆形成用于茶袋等的改进的输液网材料，并且在其中形成大量小的离散凹坑的阵列。 在通过将低冲击雾状液体喷雾引导到热封相之前，在干燥初始形成的多相材料之前，形成具有至少约1×10 -3平方厘米的平均平面面积的这些凹坑。 来自喷雾的液滴使纤维形成浅凹坑，有时暴露下面的非热封纤维相的部分。 小的空穴在整个热封阶段以至少约40个/厘米2厘米的浓度存在，并且占该材料的热封纤维相的总暴露表面积的约10-75％。 纤维网也用表面活性剂处理。