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    • 3. 发明授权
    • Fibrous structure and process for making same
    • 纤维结构和制造方法
    • US5938893A
    • 1999-08-17
    • US920204
    • 1997-08-15
    • Paul Dennis TrokhanMark Ryan RichardsMichael Gomer Stelljes, Jr.
    • Paul Dennis TrokhanMark Ryan RichardsMichael Gomer Stelljes, Jr.
    • D21H27/00D21F11/00D21H11/00
    • D21F11/006
    • A differential micro-regions single lamina fibrous web comprises at least two pluralities of micro-regions disposed in a non-random and repeating pattern: a first plurality of micro-regions comprising fibers interconnected with a fiber-bonding substance, and a second plurality of micro-regions, preferably not interconnected with the fiber-binding substance. The fiber-binding substance is selected from the group consisting of hemicelluloses, lignin, polymeric extractives, and any combination thereof. The fibers of the first plurality of micro-regions are bonded together by a process of softening, flowing, and immobilization of the fiber-binding substance between the cellulosic fibers. The process for making the fibrous web comprises the steps of heating the web containing the fiber-binding substance to a temperature sufficient to cause the fiber-bonding substance to soften; pressurizing the fibrous web thereby causing the fiber-binding substance to flow and interconnect those fibers which are mutually juxtaposed in the first plurality of micro-regions; and then immobilizing the fiber-binding substance thereby creating fiber-bonds between the fibers which are interconnected in the first plurality of micro-regions.
    • 差异微区单层纤维网包括以非随机和重复图案布置的至少两个微区域:包含与纤维结合物质互连的纤维的第一多个微区域和第二多个微区域 微区域,优选不与纤维结合物质互连。 纤维结合物质选自半纤维素,木质素,聚合物提取物及其任何组合。 第一多个微区域的纤维通过纤维结合物质在纤维素纤维之间软化,流动和固定的方法结合在一起。 制造纤维网的方法包括以下步骤:将含有纤维结合物质的纤维网加热到足以使纤维粘结物质软化的温度; 对纤维网进行加压,从而使纤维结合物质流动并互连在第一多个微区域中相互并列的纤维; 然后固定纤维结合物质,从而在第一多个微区域中互连的纤维之间产生纤维结合。