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    Absorbent sheet material having cut-resistant particles and methods for making the same
    3.
    发明授权
    Absorbent sheet material having cut-resistant particles and methods for making the same 失效
    具有抗切割颗粒的吸收性片材及其制造方法

    公开(公告)号：US06592983B1

    公开(公告)日：2003-07-15

    申请号：US09560068

    申请日：2000-04-27

    Applicant: John Kit Carson ,  Steven Michael Schennum

    Inventor： John Kit Carson ,  Steven Michael Schennum

    IPC: B32B1902

    CPC classification number: B32B3/08 ,  B29C47/0021 ,  B29C47/8805 ,  B32B5/02 ,  B32B5/16 ,  B32B27/20 ,  Y10T428/25 ,  Y10T428/253 ,  Y10T428/254 ,  Y10T428/27 ,  Y10T428/31

    Abstract: A cut-resistant and shred-resistant absorbent sheet material including an absorbent substrate and cut-resistant particles distributed through the substrate. Preferably, the absorbent substrate comprises cellulosic material and the particles comprise polymeric materials having an average size of at least about 100 micrometers, and most preferably between 100 and 1000 micrometers. It is also preferred that the absorbent substrate is provided in an amount of at least 50 percent by weight and is substantially free of inorganic free filler particulate. In addition, it is preferred that the sheet material has a basis weight of at least 100 pounds per 3000 ft2, and that the particles are provided in an amount of between about 10 percent and about 50 percent by weight of the sheet. The sheet material can be made using typical paper making processes. Preferably, heat and/or pressure are applied to the sheet material to cause the particles to at least partially flow, so as to bond to the absorbent substrate. It is also preferred that the sheet material exhibit an absorbent efficiency of at least 0.2, a cut-resistance at least 30 kgf/cm, a wet abrasion loss of less than about 400 mg/100 revolutions, and a dry abrasion loss of less than about 300 mg/100 revolutions.

    Abstract translation: 一种耐切割和抗撕裂的吸收性片材，包括吸收性基材和分散在基材上的耐切割颗粒。 优选地，吸收性基材包含纤维素材料，并且颗粒包含平均尺寸为至少约100微米，最优选为100至1000微米的聚合材料。 还优选的是，所述吸收性基材以至少50重量％的量提供，并且基本上不含无机游离填料颗粒。 此外，优选的是，片材的基重至少为100磅/ 3000英尺2，并且所述颗粒以片材的约10重量％至约50重量％的量提供。 片材可以使用典型的造纸工艺制成。 优选地，将热和/或压力施加到片材以使颗粒至少部分地流动，以便结合到吸收性基材上。 还优选的是，片材的吸收效率至少为0.2，抗切割强度至少为30kgf / cm，湿磨耗小于约400mg / 100转，干磨耗小于 约300毫克/ 100转。

    Flexible, cut resistant, and absorbent fibrous sheet materials
    4.
    发明授权
    Flexible, cut resistant, and absorbent fibrous sheet materials 有权
    柔性，耐切割和吸收性纤维片材

    公开(公告)号：US06391806B1

    公开(公告)日：2002-05-21

    申请号：US09336494

    申请日：1999-06-18

    Applicant: John Kit Carson ,  Richard Emil Hildebrand, IV ,  James Cameron Horney ,  John David Norcom ,  Geneva Gail Otten

    Inventor： John Kit Carson ,  Richard Emil Hildebrand, IV ,  James Cameron Horney ,  John David Norcom ,  Geneva Gail Otten

    IPC: B32B300

    CPC classification number: B32B3/08 ,  B32B5/02 ,  B32B5/16 ,  B32B27/12 ,  B32B2262/02 ,  B32B2305/08 ,  B32B2307/546 ,  B32B2307/581 ,  B32B2307/726 ,  Y10T428/24331 ,  Y10T428/24479 ,  Y10T428/2457 ,  Y10T428/24612 ,  Y10T428/24777 ,  Y10T428/24802 ,  Y10T442/273 ,  Y10T442/60

    Abstract: The present invention provides a liquid absorbent fibrous substrate having a plurality of discontinuous cells in which a second material is disposed. This second material is selected from a broad variety of organic or inorganic solids which may provide a reinforcing effect such that a sharp instrument is prevented from passing through the new composite structure. The reinforcing materials are disposed in a discontinuous array, in a cellular form in the fibrous substrate thus providing a path for liquids to be absorbed into said fibrous substrate, while said reinforcing materials provide resistance to penetration by sharp edged instruments. When disposed in this manner, flexibility is maintained since the reinforcing materials are not disposed in a continuous pattern. Preferably, the pattern disposed is free of linear regions that provide a continuous line of penetration for sharp edges. More preferably, the pattern is designed with a pattern of interlocking shapes which constrain said linear regions to essentially short lengths. The reinforcing cellular pattern may be embossed above said absorbent fibrous substrate or may be substantially co-planar with said fibrous substrate. The composite substrate may also be backed with a liquid impervious layer, either as a separate layer applied thereto the bottom surface, or as an applied coating. The liquid impervious surface may be usefully selected with a high co-efficient of friction to provide a non-skid surface.

    Abstract translation: 本发明提供一种具有多个不连续单元的吸液性纤维基材，其中设置有第二材料。 该第二材料选自多种有机或无机固体，其可提供增强效果，使得防止锋利的仪器通过新的复合结构。 增强材料以细胞形式以不连续的阵列布置在纤维基质中，从而为液体吸收到所述纤维基质中提供途径，同时所述增强材料提供对尖锐边缘器械的穿透抵抗力。 当以这种方式设置时，由于增强材料不以连续图案设置，因此保持柔性。 优选地，所设置的图案没有提供用于锋利边缘的连续穿透线的线性区域。 更优选地，图案被设计为将所述线性区域约束到基本短的长度的互锁形状的图案。 增强细胞图案可以在所述吸收性纤维基材上方压花，或者可以与所述纤维基材基本共面。 复合衬底也可以用液体不可渗透层支撑，或作为施加到其底表面上的独立层，或作为施加的涂层。 液体不可渗透的表面可以有效地选择具有高的摩擦系数以提供非滑动表面。

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