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    DEINKING WASTE ELECTROPHOTOGRAPHY COPY PAPER
    6.
    发明申请
    DEINKING WASTE ELECTROPHOTOGRAPHY COPY PAPER 审中-公开
    消除废物电子影像复印纸

    公开(公告)号：WO1981001022A1

    公开(公告)日：1981-04-16

    申请号：PCT/US1980001311

    申请日：1980-10-06

    申请人： WEYERHAEUSER CO

    发明人： WEYERHAEUSER CO ,  QUICK T

    IPC分类号： D21C05/02

    CPC分类号： D21C5/022 ,  B41M7/0009 ,  Y02W30/648

    摘要： The toners used for printing in the electrophotography processes such as xerography or laser printing are removed from copy paper. In the process, the paper is pulped to form an aqueous slurry. The toner is removed from the paper with a dual system of a collector and a collecting chemical. The best collectors have solubility parameters similar to the toners so that the softened toner is slightly soluble in the collector. These include polystyrene, polyvinyl chloride and polyacrylates, e.g., polymethyl methacrylates. Other collectors which are operable but less satisfactory are polyurethane and polypropylene. The collector is in the form of prills, beads or sheets. The specific collector will depend upon the specific chemicals in the toner. There are a number of requirements for the collecting chemical. It should be substantially insoluble in water. It should have a melting point that is at or below the approximate softening point of the toner or collector. It should be a saturated aliphatic primary alcohol, a mixture of such alcohols, an unsaturated aliphatic primary alcohol, a mixture of such unsaturated alcohols, a saturated secondary alcohol, a saturated aliphatic primary hydrocarbon, a mixture of such hydrocarbons, or a mixture of hydrocarbons and alcohols. The process is operable at or above the melting point of the collecting chemical, and at a temperature at which the toner is softened, generally 38-75 C.

    METHODS TO CONTROL ORGANIC CONTAMINANTS IN FIBERS USING ZEOLITES
    7.
    发明申请
    METHODS TO CONTROL ORGANIC CONTAMINANTS IN FIBERS USING ZEOLITES 审中-公开
    使用ZEOLITES控制纤维中有机污染物的方法

    公开(公告)号：WO2015026507A1

    公开(公告)日：2015-02-26

    申请号：PCT/US2014/049516

    申请日：2014-08-04

    申请人： BUCKMAN LABORATORIES INTERNATIONAL, INC.

    发明人： BAN, Weiping ,  THOMAS, George, S.

    IPC分类号： D21C9/08 ,  D21H21/02 ,  D21H17/68 ,  D21C9/083

    CPC分类号： D21C9/083 ,  D21C5/005 ,  D21C5/022 ,  D21C9/08 ,  D21H17/68 ,  D21H21/02

    摘要： Methods to control organic contaminants in fibers are described. One method involves contacting the fibers with a) at least one zeolite and optionally b) detackifier, or an ester hydrolyzing enzyme, or both, for a sufficient time and in a sufficient amount to control the organic contaminants present in the fibers. This method is effective to reduce stickies in paper mill furnish formed with recycled fibers. A method for pitch control in paper mill furnish formed with virgin fibers is also provided. Resulting paper products formed from the processed fibers are also described as well as methods to make them.

    摘要翻译： 描述了控制纤维中有机污染物的方法。 一种方法包括使纤维与a）至少一种沸石和任选的b）防粘剂或酯水解酶或两者接触足够的时间和足够量以控制存在于纤维中的有机污染物。 该方法有效减少由再生纤维形成的造纸厂配料中的粘性。 还提供了一种用原始纤维形成的造纸厂配料中的沥青控制方法。 还描述了由加工纤维形成的所得纸制品以及制造它们的方法。

    REMOVAL OF IMPURITIES IN WASTE PAPER PROCESSING
    8.
    发明申请
    REMOVAL OF IMPURITIES IN WASTE PAPER PROCESSING 审中-公开
    废物处理中的污染物去除

    公开(公告)号：WO2012116907A3

    公开(公告)日：2012-11-08

    申请号：PCT/EP2012052922

    申请日：2012-02-21

    申请人： SIEMENS AG ,  SCHWARZ HERMANN ,  SCHAEFER JOCHEN

    发明人： SCHWARZ HERMANN ,  SCHAEFER JOCHEN

    IPC分类号： D21C5/02 ,  D21B1/32

    CPC分类号： D21C5/022 ,  D21B1/325 ,  D21C5/027 ,  Y02W30/646 ,  Y02W30/648

    摘要： The invention relates to a method for removing impurities in waste paper processing. In order to increase the separation rate of impurities relative to known solutions, according to the invention the impurities are separated from the paper fibers in liquid or supercritical carbon dioxide or in a mixture of liquid or supercritical carbon dioxide and at least one organic solvent.

    摘要翻译： 本发明涉及在废纸处理中去除杂质的方法。 为了增加分离杂质的程度，从已知的解决方案，所以建议在液体或超临界二氧化碳或液态或超临界二氧化碳和至少一种有机溶剂的混合物的纸纤维中的杂质分离。

    METHODS TO CONTROL ORGANIC CONTAMINANTS IN FIBERS
    9.
    发明申请
    METHODS TO CONTROL ORGANIC CONTAMINANTS IN FIBERS 审中-公开
    控制纤维中有机污染物的方法

    公开(公告)号：WO01098579A2

    公开(公告)日：2001-12-27

    申请号：PCT/US2001/019144

    申请日：2001-06-15

    IPC分类号： D06M16/00 ,  D21C5/02 ,  D21C9/08 ,  D21H11/14 ,  D21H21/02 ,  D21C

    CPC分类号： D21H21/02 ,  D21C5/022 ,  D21C9/086 ,  D21H11/14 ,  Y02W30/648 ,  Y10S162/04

    摘要： Methods to control organic contaminants in fibers are described. One method involves contacting the fibers with a composition containing at least one esterase or lipase or both for a sufficient time and in a sufficient amount to control the organic contaminants present in the fibers. Preferably, the fibers are recycled fibers originating from a variety of sources such as old corrugated containers, old newsprint, mixed office waste, and the like. Resulting paper products formed from the processed fibers are also described as well as methods to make them.

    摘要翻译： 描述了控制纤维中有机污染物的方法。 一种方法包括使纤维与含有至少一种酯酶或脂肪酶或两者的组合物接触足够的时间和足够的量以控制存在于纤维中的有机污染物。 优选地，纤维是源自各种来源的再循环纤维，例如旧的瓦楞纸箱，旧的新闻纸，混合的办公室废物等。 还描述了由加工纤维形成的所得纸制品以及制造它们的方法。