Papermaking device for producing a multilayer liner and associated methods
    2.
    发明授权
    Papermaking device for producing a multilayer liner and associated methods 失效
    用于生产多层衬板的造纸装置及相关方法

    公开(公告)号:US06699361B1

    公开(公告)日:2004-03-02

    申请号:US09656563

    申请日:2000-09-07

    CPC classification number: D21F3/045 D21F2/00 D21F3/04 D21F11/04

    Abstract: A method for the production of a liner comprising at least a top layer and a base layer is provided, wherein a forming section with at least two forming units is used to create a fiber web, said fiber web being conveyed through a press section and further to a drying section, said press section comprising a number of roll nips and at least one impermeable transfer belt with at least one smooth surface, wherein said transfer belt runs through the last nip in the press section in such a manner that its top layer is pressed against said smooth surface of the transfer belt.

    Abstract translation: 提供了一种用于生产包括至少顶层和底层的衬里的方法,其中具有至少两个成形单元的成形部分用于产生纤维网,所述纤维网被输送通过压榨部分,并进一步 所述压榨部分包括多个辊口和至少一个具有至少一个光滑表面的不可渗透的转移带,其中所述转移带以压力部分中的最后压区延伸,使得其顶层为 压在转印带的光滑表面上。

    Electrophotographic recording medium and method
    4.
    发明授权
    Electrophotographic recording medium and method 有权
    电子照相记录介质及方法

    公开(公告)号:US06630229B1

    公开(公告)日:2003-10-07

    申请号:US09591040

    申请日:2000-06-09

    Abstract: A recording medium particularly suitable for electrophotographic copying is characterized by coated paper that for a given basis weight has proportionally less coating and proportionally more fiber than conventional coated paper made for electrophotographic processes. The base sheet of the coated paper is preferably formed square on a paper machine wet end and has on the order of 40-50% less filler than conventional sheet paper made for electrophotographic processes. After being formed and dried, the base sheet is provided with a top coat weight that is approximately 60% less than the typical coat weight used for conventional paper. The coating is formulated to have sufficient viscosity to stay more on the surface of the base sheet. The coated sheet is calendered to a medium gloss on the order of a 75° TAPPI gloss of about 45, both to preserve a degree of surface roughness to enhance runnability of the paper through an electrophotographic copier and to provide a pleasant and easily readable surface. In improving on conventional paper, the paper of the invention provides for good fusion of dried toner on the paper at marginal lower temperatures. Additionally, the invention can also be applied to heavier weight papers used to form covers, for example, on reports.

    Abstract translation: 特别适用于电子照相复印的记录介质的特征在于涂布纸,对于给定的基重,与用于电子照相方法制备的常规涂布纸相比,具有比例地较少的涂层和比例地更多的纤维。 涂布纸的基片优选在造纸机湿端形成正方形,并且比用于电子照相方法制备的常规薄片纸具有大约40-50%的填料。 在成型和干燥之后,基片具有比常规纸所用典型涂层重量小约60%的面漆重量。 将涂层配制成具有足够的粘度以更多地保留在基片的表面上。 将涂覆的片材压延至大约45°的75°TAPPI光泽度的中等光泽度,以保持一定程度的表面粗糙度,以增强纸张通过电子照相复印机的运行性并提供令人愉快且容易读取的表面。 在改进传统纸上,本发明的纸提供了在边缘较低温度下在纸上干燥的调色剂的良好融合。 此外,本发明也可以应用于例如用于报告的用于形成盖的较重的重量纸。

    Crossed-linked pulp and method of making same
    5.
    发明授权
    Crossed-linked pulp and method of making same 有权
    交联纸浆及其制造方法

    公开(公告)号:US06620293B2

    公开(公告)日:2003-09-16

    申请号:US09832634

    申请日:2001-04-11

    CPC classification number: D21C9/005 D21H11/20 D21H17/37

    Abstract: The invention provides a method for preparing cross-linked cellulosic fibers. A sheet of mercerized cellulosic fibers with a purity of at least 95% is treated with a solution containing carboxylic acid cross-linking agents. The treated cellulosic fibrous material is dried and cured in sheet form to promote intrafiber cross-linking. Cross-linked fiber products of this method, which is economic, that possess good porosity, bulking characteristics, wet resiliency, and absorption, low fines, low nits, and low knots, are also disclosed. This invention also includes a blended cellulose composition comprising a minor proportion of cellulose fibers having been similarly cross-linked with carboxylic acids and a major proportion of other cellulose fibers. This invention further provides individualized, chemically cross-linked cellulosic fibers comprising mercerized individualized cellulosic fibers with a purity of at least 95%, cross-linked with carboxylic acids. Such cellulosic fibers have excellent fluid acquisition times in absorbent structures.

    Abstract translation: 本发明提供了制备交联纤维素纤维的方法。 用含有羧酸交联剂的溶液处理纯度为至少95%的丝光纤维素纤维片。 经处理的纤维素纤维材料被干燥并以片状固化以促进纤维内交联。 还公开了具有良好孔隙率,膨胀特性,湿回弹性和吸收性,低微细,低尼特和低结的经济性的该方法的交联纤维产品。本发明还包括一种混合纤维素组合物,其包含 已经类似地与羧酸和主要部分的其它纤维素纤维交联的纤维素纤维的较小比例。本发明还提供了包含纯度为至少95%的丝光化个体化纤维素纤维的个体化的化学交联的纤维素纤维, 与羧酸交联。 这种纤维素纤维在吸收结构中具有优异的流体采集时间。

    Process and apparatus for the on-line calendering of SC-A paper
    7.
    发明授权
    Process and apparatus for the on-line calendering of SC-A paper 失效
    SC-A纸张在线压延的工艺和设备

    公开(公告)号:US06500305B1

    公开(公告)日:2002-12-31

    申请号:US09711580

    申请日:2000-11-13

    CPC classification number: D21G7/00 D21G1/0093

    Abstract: A process and an apparatus for the manufacture of SC-A paper having a high gloss and high smoothness, wherein the paper arriving from the paper machine is supplied on-line to a supercalender (multinip soft calendar), and wherein the paper travels through a plurality of nips for achieving the desired gloss and smoothness properties. The paper web arriving from the paper machine and supplied on-line to a supercalender (multinip soft calendar) is moistened with steam immediately prior to the first nip of the supercalender and is guided through the first nip before the increased moisture of the surface resulting from the application of steam has dropped below a predetermined value in the range of 12% to 25%.

    Abstract translation: 一种用于制造具有高光泽度和高平滑度的SC-A纸的方法和设备,其中从造纸机到达的纸张在线供应到超级砑光机(多色软日历)上,并且其中纸张通过 用于实现所需的光泽度和平滑性的多个胶片。 从造纸机到达并且在线提供给超级砑光机(多色软砑光机)的纸幅在紧挨着超级砑光机的第一压区之前被蒸汽润湿,并且在表面增加的湿度之前被引导通过第一压区 蒸汽的使用已经降低到12%至25%的范围内的预定值。

    Process for dewatering a pulp web
    8.
    发明授权
    Process for dewatering a pulp web 有权
    脱浆纸浆网的方法

    公开(公告)号:US06478928B1

    公开(公告)日:2002-11-12

    申请号:US09729035

    申请日:2000-12-04

    CPC classification number: D21F9/003

    Abstract: The invention refers to a process for dewatering a pulp web, particularly a chemical pulp web, where dewatering takes place between twin wire belts or felts in an initial dewatering zone with a set area pressure and then in a second dewatering zone. It is mainly characterized by the area pressure in the initial dewatering zone being pre-set, and in the second dewatering zone it is adjustable, with the web being dewatered in both directions (upwards and downwards). The invention also refers to a device for implementing the process.

    Abstract translation: 本发明涉及一种用于使纸浆网,特别是化学纸浆网脱水的方法,其中在具有设定面积压力的初始脱水区域中的双丝带或毡之间进行脱水,然后在第二脱水区域中进行脱水。 其主要特征在于预先设定的初始脱水区的面积压力,并且在第二脱水区域是可调节的,其中网沿两个方向(上下)脱水。 本发明还涉及一种用于实现该过程的装置。

    Electrically-conductive para-aramid pulp
    9.
    发明授权
    Electrically-conductive para-aramid pulp 有权
    导电对位芳族聚酰胺纸浆

    公开(公告)号:US06436236B1

    公开(公告)日:2002-08-20

    申请号:US09799368

    申请日:2001-03-05

    CPC classification number: D21H13/26 D01F6/905

    Abstract: The present invention relates to electrically-conductive pulp of sulfonated polyaniline blended with para-aramid wherein the para-aramid is a continuous phase in the pulp and the sulfonated polyaniline is a discontinuous phase.

    Abstract translation: 本发明涉及与对位芳族聚酰胺共混的磺化聚苯胺的导电纸浆,其中对位芳族聚酰胺是纸浆中的连续相,磺化聚苯胺是不连续相。

    Method and apparatus for drying a paper web
    10.
    发明授权
    Method and apparatus for drying a paper web 失效
    干燥纸幅的方法和装置

    公开(公告)号:US06365004B1

    公开(公告)日:2002-04-02

    申请号:US09581921

    申请日:2000-08-17

    CPC classification number: D21F5/00 D21F5/042 D21F5/18 D21F7/003

    Abstract: A method and apparatus effect drying of a paper web using a plurality of heated drying cylinders and at least one air impingement module having a hood. The paper web is brought into operative contact with the heated drying cylinders, and at least one of the final moisture content, quality, and cross-direction profile of the paper web is regulated. The regulation is effected by adjusting the efficiency of air impingement drying of the paper web, by adjusting at least one of the blowing velocity of the medium (typically air) blown against the paper web, the humidity of the blowing medium, and the distance of the hood of the impingement module from the paper web. At least one of the final moisture content of the paper web and its quality may also be regulated by adjusting the steam pressure of one or more drying cylinder groups. Typically the final moisture content of the web is measured after the last drying cylinder group and the efficiency of air impingement drying is regulated on the basis of that measurement.

    Abstract translation: 一种使用多个加热的干燥筒和至少一个具有罩的空气冲击模块来干燥纸幅的方法和装置。 纸幅与加热的干燥筒进行操作接触,并且调节纸幅的最终含水量,质量和横向轮廓中的至少一个。 调节是通过调节纸幅的空气冲击干燥的效率,通过调节吹向纸幅的介质(通常是空气)的吹送速度,吹塑介质的湿度和吹扫介质的距离 来自纸幅的冲击模块的罩。 通过调节一个或多个干燥筒组的蒸汽压力,还可以调节纸幅的最终含水量和其质量中的至少一个。 通常,在最后一个干燥筒组之后测量幅材的最终含水量,并且基于该测量来调节空气冲击干燥的效率。

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