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    • 1. 发明授权
    • Differential density cellulosic structure and process for making same
    • 差示密度纤维素结构及其制备方法
    • US5935381A
    • 1999-08-10
    • US870535
    • 1997-06-06
    • Paul Dennis TrokhanMark Ryan RichardsMichael Gomer Stelljes, Jr.
    • Paul Dennis TrokhanMark Ryan RichardsMichael Gomer Stelljes, Jr.
    • D21H27/00D21F3/00D21F5/02D21F11/00D21H11/00
    • D21F11/006
    • A differential density single lamina web of cellulosic fibers comprises at least two pluralities of micro-regions disposed in a non-random and repeating pattern: a first plurality of high density regions and a second plurality of low density regions. The high density regions comprise cellulosic fibers comprising fluid latent indigenous polymers (FLIP), such as hemicelluloses and lignin. The fibers of the high-density regions are FLIP-bonded, i.e., bonded together by a process of softening, flowing and immobilization of the FLIP between the cellulosic fibers of the high density regions. The process for making the web comprises the steps of providing a plurality of papermaking fibers comprising FLIP; providing a macroscopically monoplanar papermaking belt having a web-facing surface and deflection conduits; depositing the plurality of the cellulosic fibers on the papermaking belt to form a web; heating the web to a temperature sufficient to cause the FLIP contained in a first portion associated with the web-facing surface of the belt to soften; impressing the web-side surface of the belt into the web; immobilizing the flowable FLIP and creating FLIP-bonds between the fibers comprising the first portion of the web.
    • 纤维素纤维的差别密度单层网包括以非随机和重复图案布置的至少两个微区域:第一多个高密度区域和第二多个低密度区域。 高密度区域包括包含流体潜在的本地聚合物(FLIP)的纤维素纤维,例如半纤维素和木质素。 高密度区域的纤维是FLIP粘合的,即通过FLIP软化,流动和固定在高密度区域的纤维素纤维之间的方法结合在一起。 制造网的方法包括提供多个包含FLIP的造纸纤维的步骤; 提供具有卷筒纸表面和偏转导管的宏观单平面造纸带; 将多个纤维素纤维沉积在造纸带上以形成网; 将幅材加热到足以使包含在与带的面向卷筒纸的表面相关联的第一部分中的FLIP软化的温度; 将带的腹板侧表面压入网中; 固定可流动的FLIP并在包含纤维网的第一部分的纤维之间产生FLIP粘合。
    • 2. 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。
    • 3. 发明授权
    • Process and apparatus for making foreshortened cellulsic structure
    • 制造缩短的脉冲结构的方法和装置
    • US6139686A
    • 2000-10-31
    • US994927
    • 1997-12-19
    • Paul Dennis TrokhanMark Ryan RichardsMichael Gomer Stelljes, Jr.
    • Paul Dennis TrokhanMark Ryan RichardsMichael Gomer Stelljes, Jr.
    • D21F5/00D21F11/00D21F11/14D21H27/00
    • D21F11/14D21F11/006D21F5/004
    • A process and an apparatus for making a foreshortened paper web are disclosed. A wet web disposed on a fluid-permeable papermaking fabric is being pressed between two parallel and mutually opposed first and second press surfaces, the first press surface contacting the web, and the second press surface contacting the fabric. In the continuous process, the press surfaces, the web and the fabric move in a machine direction. Under pressure, at least selected portions of the web become densified and adhered to the first press surface which can be treated with a creping adhesive. The first surface is heated to create a temperature differential between two surfaces. The temperature differential causes the water contained in the web to move from the web into the fabric, thereby drying the web. After the web is released from the pressure, the web is foreshortened either by creping or by transferring the web to a slower moving transfer fabric. Creping is performed with a creping doctor blade juxtaposed with the creping surface having the web adhered thereto. A creping adhesive may be deposited on the creping surface according to a predetermined pattern. The creping surface may comprise the first press surface. Optionally, the web may be calendered after being foreshortened.
    • 公开了一种制造缩短纸幅的方法和装置。 布置在流体渗透性造纸织物上的湿网被压在两个平行和相互对置的第一和第二挤压表面之间,第一压榨表面接触幅材,第二压榨表面与织物接触。 在连续过程中,压力表面,纤维网和织物在机器方向移动。 在压力下,幅材的至少选定部分变得致密化并粘附到可用起皱粘合剂处理的第一压制表面。 第一表面被加热以在两个表面之间产生温差。 温度差使得包含在幅材中的水从纸幅移动到织物中,从而干燥纸幅。 在幅材从压力释放之后,纤维网通过起皱或通过将幅材转移到较慢移动的转印织物而被缩短。 用起皱刮刀与起皱表面并排的起皱是将纤维网粘附在其上。 起皱粘合剂可以根据预定图案沉积在起皱表面上。 起皱表面可以包括第一压制表面。 可选地,网可以在被缩短之后被压延。