Wet pressed paper web and method of making the same
    1.
    发明授权
    Wet pressed paper web and method of making the same 失效
    湿压纸网和制作相同的方法

    公开(公告)号:US5637194A

    公开(公告)日:1997-06-10

    申请号:US358661

    申请日:1994-12-19

    摘要: 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.

    摘要翻译: 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。

    Process for applying a thin film containing low levels of a
functional-polysiloxane and a mineral oil to tissue paper
    2.
    发明授权
    Process for applying a thin film containing low levels of a functional-polysiloxane and a mineral oil to tissue paper 失效
    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

    公开(公告)号:US5389204A

    公开(公告)日:1995-02-14

    申请号:US212436

    申请日:1994-03-10

    CPC分类号: D21H21/24 D21H19/32 D21H23/56

    摘要: 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.

    摘要翻译: 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。

    Process for applying chemical papermaking additives from a thin film to
tissue paper
    3.
    发明授权
    Process for applying chemical papermaking additives from a thin film to tissue paper 失效
    将化学造纸添加剂从薄膜应用于薄纸的方法

    公开(公告)号:US5246545A

    公开(公告)日:1993-09-21

    申请号:US936161

    申请日:1992-08-27

    摘要: Disclosed is a process for making soft tissue paper which includes providing a dry tissue web and then applying a sufficient amount of a chemical papermaking additive from a thin film to the dry web. The chemical papermaking additives are added to the surface of the tissue paper to enhance properties of the paper such as strength, softener, absorbency, and/or aesthetics. The chemical papermaking additive application process includes the steps of diluting the chemical papermaking additive with a suitable solvent, applying the diluted chemical solution to a heated transfer surface, evaporating the solvent from the dilute solution to form a film, and then transferring the film to the tissue by 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 papermaking additive.

    摘要翻译: 公开了一种制备软棉纸的方法,其包括提供干燥的纸幅,然后将足量的化学造纸添加剂从薄膜施加到干燥幅材上。 将化学造纸添加剂添加到薄纸的表面以增强纸张的性能,例如强度,柔软剂,吸收性和/或美观性。 化学造纸添加剂的应用过程包括用合适的溶剂稀释化学造纸添加剂的步骤,将稀释的化学溶液施加到加热的转移表面,从稀溶液中蒸发溶剂以形成膜,然后将膜转移到 通过使干纸幅与加热的转印表面接触来进行组织。 优选地,在施用造纸添加剂之前,将组织网干燥至低于其平衡水分含量的水分含量。

    PARTICLE FOR GASIFICATION CONTAINING A CELLULOSE CORE WITH A COATING OF LIGNIN
    5.
    发明申请
    PARTICLE FOR GASIFICATION CONTAINING A CELLULOSE CORE WITH A COATING OF LIGNIN 审中-公开
    用于含有LIGNIN涂层的纤维素芯的气体颗粒

    公开(公告)号:US20130248760A1

    公开(公告)日:2013-09-26

    申请号:US13618528

    申请日:2012-09-14

    IPC分类号: D21B1/36 D21H11/00

    摘要: A biomass composition of matter to be used in a torrefaction process or a biomass gasification reaction is described. The biomass in a particle form is created in a pretreatment step that occurs prior to the torrefaction process or the biomass gasification reaction. A bulk structure of the biomass is 1) stripped apart to at least partially separate an outer layer of lignin in the biomass from the cellulose fibers, 2) internally blown apart to create fragments of the fiber bundle, and 3) any combination of the two in the pretreatment step. The biomass in particle form has a length to thickness aspect ratio on average of less than 300 to 1, a thickness on average of less than 100 microns thick and a length on average of less than 3000 microns.

    摘要翻译: 描述了用于烘焙过程或生物质气化反应中的物质的生物质组成。 颗粒形式的生物质是在烘焙过程或生物质气化反应之前发生的预处理步骤产生的。 生物质的体积结构是1)剥离,至少部分地将生物质中的木质素外层与纤维素纤维分开,2)内部吹开以产生纤维束的碎片,以及3)两者的任何组合 在预处理步骤。 颗粒形式的生物质的长宽比平均小于300至1,平均厚度小于100微米厚,平均长度小于3000微米。

    Process and apparatus for making papermaking belt using fluid pressure differential
    6.
    发明授权
    Process and apparatus for making papermaking belt using fluid pressure differential 失效
    使用流体压差制造造纸带的工艺和设备

    公开(公告)号:US06251331B1

    公开(公告)日:2001-06-26

    申请号:US09150385

    申请日:1998-09-09

    IPC分类号: B29C6700

    CPC分类号: D21F11/006 B29C39/148

    摘要: A process and an apparatus for making a papermaking belt are provided, the belt comprising a reinforcing structure and a resinous framework joined together. The preferred continuous process comprises the steps of depositing a flowable resinous material onto a patterned molding surface; continuously moving the molding surface and the reinforcing structure at a transport velocity such that at least a portion of the reinforcing structure is in a face-to-face relationship with a portion of the molding surface; applying a fluid pressure differential to transfer the flowable resinous material from the molding surface onto the reinforcing structure and causing the flowable resinous material and the reinforcing structure to join together; and solidifying the resinous material thereby forming the resinous framework joined to the reinforcing structure. The apparatus comprises a molding member having a patterned molding surface preferably comprising a plurality of molding pockets to carry a flowable resinous material therein; a means for depositing the flowable resinous material into the molding pockets of the molding surface; a means for moving the reinforcing structure and the molding member in a predetermined direction; and a means for creating a fluid pressure differential sufficient to transfer the flowable resinous material from the molding member to the reinforcing structure.

    摘要翻译: 提供了一种制造造纸带的方法和装置,该带包括加强结构和连接在一起的树脂框架。 优选的连续方法包括以下步骤:将可流动的树脂材料沉积到图案化的模制表面上; 以使得所述加强结构的至少一部分与所述成型表面的一部分成为面对面关系的输送速度连续地移动所述成型表面和所述加强结构; 施加流体压力差以将可流动的树脂材料从模制表面转移到加强结构上,并使可流动的树脂材料和加强结构结合在一起; 并固化树脂材料,从而形成与加强结构物接合的树脂骨架。 该装置包括具有图案化模制表面的模制构件,优选地包括多个模制袋以在其中承载可流动的树脂材料; 用于将可流动树脂材料沉积到模制表面的模制袋中的装置; 用于沿预定方向移动加强结构和模制构件的装置; 以及用于产生足以将可流动的树脂材料从模制构件转移到加强结构的流体压力差的装置。

    Process for applying a polysiloxane to tissue paper
    7.
    发明授权
    Process for applying a polysiloxane to tissue paper 失效
    将多晶硅用于组织纸的方法

    公开(公告)号:US5215626A

    公开(公告)日:1993-06-01

    申请号:US732846

    申请日:1991-07-19

    CPC分类号: D21H25/06 D21H17/59 D21H23/50

    摘要: Disclosed is a process for making soft tissue paper which includes the steps of wet-laying cellulosic fibers to form a web; drying the web and elevating the web temperature, creping the hot web, and applying low levels of a polysiloxane material to the hot, creped web. Preferably, the hot web is dried to a moisture level below its equilibrium moisture content before application of the polysiloxane material. The process may further include the steps of applying an effective amount of a surfactant material to enhance softness and/or wetability 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.

    摘要翻译: 公开了一种制备软棉纸的方法,其包括湿法铺展纤维素纤维以形成纤维网的步骤; 干燥纸幅并提高纸幅温度,起皱热网,并将低水平的聚硅氧烷材料施加到热的起皱网。 优选地,在施加聚硅氧烷材料之前,将热幅材干燥至低于其平衡水分含量的水分含量。 该方法还可以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。

    Sulfite process for making pulp having a tactile softness from hardwood
chips
    8.
    发明授权
    Sulfite process for making pulp having a tactile softness from hardwood chips 失效
    用于制造具有硬木屑的触感柔软度的纸浆的亚硫酸盐法

    公开(公告)号:US4634499A

    公开(公告)日:1987-01-06

    申请号:US766063

    申请日:1985-08-14

    IPC分类号: D21C3/14 D21C3/06

    CPC分类号: D21C3/14

    摘要: Pulps having a tactile sense of softness which are made from hardwoods and processes for making such pulps. The process comprises the steps of: providing hardwood chips having specified sizes; introducing the chips into a digester; removing substantially all the free oxygen from the chips within the digester; providing a cooking liquor comprising from about 0.4% to about 3% ammonia and from about 9% to about 14% sulphur dioxide; completely submerging in cooking liquor all the chips within the digester; sulfonating the lignin within the chips at a temperature of less than about 110.degree. C.; rapidly increasing the temperature to an appropriate hydrolysis temperature; hydrolyzing the lignin sulfonation products at a temperature of from about 140.degree. to about 155.degree. C. at a pH from about 2 to about 3; and rapidly reducing the temperature of the system following the hydrolysis. Pulps made by this process were made into useful tissue paper webs having enhanced softness properties.

    摘要翻译: 具有由硬木制成的柔软感的纸浆和制造这种纸浆的工艺。 该方法包括以下步骤:提供具有特定尺寸的硬木屑; 将芯片引入消化器; 从蒸煮器内的碎屑中大部分去除游离氧; 提供包含约0.4%至约3%氨和约9%至约14%二氧化硫的烹饪液; 完全浸没在蒸煮酒中所有的消化器内的芯片; 在低于约110℃的温度下将木质素磺化在芯片内; 将温度迅速升高到适当的水解温度; 在约2至约3的pH下,在约140至约155℃的温度下水解木质素磺化产物; 并迅速降低水解后的体系温度。 通过该方法制成的纸浆被制成具有增强的柔软性的有用的纸巾纸。