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    • 9. 发明授权
    • Wet pressed paper web and method of making the same
    • 湿压纸网和制作相同的方法
    • US5637194A
    • 1997-06-10
    • US358661
    • 1994-12-19
    • Robert S. AmpulskiAlbert H. SawdaiPaul D. Trokhan
    • Robert S. AmpulskiAlbert H. SawdaiPaul D. Trokhan
    • D21F3/02D21F11/00D21H27/00D21H11/00
    • D21F11/006Y10T428/24455Y10T428/24603
    • The present invention provides a wet pressed paper web. The web has a first relatively high density region having a first thickness K, a second relatively low density region having a second thickness P, which is a local maxima, and a third region extending intermediate the first and second regions. The third region includes a transition region having a third thickness T, which is a local minima. The present invention also provides a method of making a wet pressed web. An embryonic web of papermaking fibers is formed on a foraminous forming member, and transferred to an imprinting member to deflect a portion of the papermaking fibers in the embryonic web into deflection conduits in the imprinting member. The web and the imprinting member are then pressed between first and second dewatering felts in a compression nip to further deflect the papermaking fibers into the deflection conduits in the imprinting member and to remove water from both sides of the web. The imprinting member can have a continuous, monoplanar web contacting surface for molding a wet paper web to have a continuous, relatively high density network and a plurality of relatively low density, discrete domes dispersed through the relatively high density network.
    • 本发明提供一种湿压纸幅。 幅材具有第一相对高密度区域,具有第一厚度K,具有第二厚度P的第二相对低密度区域,其是局部最大值,以及在第一和第二区域之间延伸的第三区域。 第三区域包括具有第三厚度T的过渡区域,其是局部最小值。 本发明还提供一种制造湿压网的方法。 造纸纤维的胚胎网形成在多孔成形构件上,并转移到压印构件以将胚胎网中的一部分造纸纤维偏转到压印构件中的偏转导管中。 然后将卷材和压印构件在压缩压区中在第一和第二脱水毡之间被挤压,以进一步将造纸纤维偏转到压印构件中的偏转导管中,并从网的两侧除去水。 压印构件可以具有连续的单平面接触表面,用于模制湿纸幅以具有连续的,相对高密度的网络和分散在相对高密度网络中的多个相对低密度的离散圆顶。
    • 10. 发明授权
    • Process for applying a thin film containing low levels of a
functional-polysiloxane and a mineral oil to tissue paper
    • 将含有低水平的官能聚硅氧烷和矿物油的薄膜施加到薄纸上的方法
    • US5389204A
    • 1995-02-14
    • US212436
    • 1994-03-10
    • Robert S. Ampulski
    • Robert S. Ampulski
    • D21H19/32D21H21/24D21H23/56D21H21/22
    • D21H21/24D21H19/32D21H23/56
    • Disclosed is a process for making soft tissue paper which includes providing a dry tissue web and then applying a sufficient amount of a functional-polysiloxane softener compound to the dry web. The softener application process includes the steps of mixing a functional-polysiloxane compound with a suitable nonvolatile diluent, such as a mineral oil, forming an emulsion containing the functional-polysiloxane compound and nonvolatile diluent using a volatile solvent, such as water, and surfactant emulsifier, applying the emulsion to a heated transfer surface, evaporating the volatile solvent from the emulsion to form a film, and then contacting the dry tissue web with the heated transfer surface. Preferably, the tissue web is dried to a moisture level below its equilibrium moisture content before application of the functional-polysiloxane material. The process may further include the steps of applying an effective amount of a surfactant material to enhance softness and/or wettability control; and/or an effective amount of a binder material such as starch, for linting control, and/or to contribute tensile strength to the tissue paper.
    • 公开了一种制备软棉纸的方法,其包括提供干燥的纸幅,然后将足够量的官能 - 聚硅氧烷柔软剂施加到干燥幅材上。 软化剂施加方法包括以下步骤:使用挥发性溶剂如水和表面活性剂乳化剂将功能性聚硅氧烷化合物与合适的非挥发性稀释剂如矿物油混合,形成含有官能聚硅氧烷化合物和非挥发性稀释剂的乳液 将乳液施加到加热的转印表面上,从乳液中蒸发挥发性溶剂以形成膜,然后使干纸幅与加热的转印表面接触。 优选地,在施加功能聚硅氧烷材料之前,将组织网干燥至低于其平衡含水量的水分含量。 该方法可以进一步包括施加有效量的表面活性剂材料以增强柔软度和/或润湿性控制的步骤; 和/或有效量的粘合剂材料如淀粉,用于褪色控制,和/或为薄纸提供拉伸强度。