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    • 71. 发明申请
    • CELLULOSIC PRODUCT AND PROCESS FOR ITS PRODUCTION
    • 纤维素产品及其生产工艺
    • WO2004046464A1
    • 2004-06-03
    • PCT/SE2003/001727
    • 2003-11-07
    • AKZO NOBEL N.V.EKA CHEMICALS ABTOKARZ, MarekNILSSON, Jerker
    • TOKARZ, MarekNILSSON, Jerker
    • D21H21/02
    • D21H19/68D21H17/68D21H21/02D21H21/10
    • The present invention relates to a process for the production of a cellulosic product which comprises (i) providing an aqueous suspension containing cellulosic fibres, and optional filler; (ii) adding to the suspension a clay having 3R2 stacking; and (iii) dewatering the obtained suspension. The invention also relates to a process for the production of a cellulosic product which comprises (i) providing an aqueous suspension containing cellulosic fibres, and optional filler; (ii) adding to the suspension a cationic clay;(iii) adding to the suspension one or more drainage and retention aids comprising at least one cationic polymer; and (iv) dewatering the obtained suspension. The invention further relates to a cellulosic product comprising clay having 3R 2 stacking.
    • 本发明涉及一种生产纤维素产品的方法,其包括(i)提供含有纤维素纤维和任选填料的含水悬浮液; (ii)向悬浮液中加入具有3R2堆叠的粘土; 和(iii)对获得的悬浮液进行脱水。 本发明还涉及一种生产纤维素产品的方法,其包括(i)提供含有纤维素纤维的水性悬浮液和任选的填料; (ii)向所述悬浮液中加入阳离子粘土;(iii)向所述悬浮液中加入一种或多种包含至少一种阳离子聚合物的引流和助留剂; 和(iv)使得到的悬浮液脱水。 本发明还涉及包含具有3R2堆叠的粘土的纤维素产品。
    • 73. 发明申请
    • AN ORGANIC COAGULANT COMPOSITION FOR TREATING COATED BROKE
    • 用于处理涂层车的有机焦油组合物
    • WO01063050A1
    • 2001-08-30
    • PCT/US2001/005231
    • 2001-02-16
    • D21H17/37D21H17/45D21H17/56D21H21/02
    • D21H21/02D21H17/375D21H17/455D21H17/56
    • Coated broke is treated with an organic coagulant composition comprising preferably a branched polyamine and a copolymer comprising an acrylamide and a DADMAC in a preferred weight percent ratio of 50 to 50 based on the weight of the copolymer. The weight ratio of the branched polyamine to the copolymer ranges from 1:4 to 4:1 in a blended composition which is added to the coated broke slurry so the white pitch attaches to the fiber in the furnish thereby reducing the tendency for the coating binders and pigments of the coated broke to accumulate resulting in deposits on the paper making machinery which ultimately can result in defects in the formed paper. The average weight molecular weight of the branched polyamine and the DADMAC ranges from 500,000 to 7 million and that of the acrylamide is from 3 to 7 million.
    • 用有机凝结剂组合物处理涂布的破裂物,该有机凝结剂组合物优选包含基于共聚物重量的优选重量百分比为50至50的支链多胺和包含丙烯酰胺和DADMAC的共聚物。 支链聚胺与共聚物的重量比在掺入组合物中的比例为1:4至4:1,这种混合组合物加入到涂覆的破碎浆液中,使得白色沥青附着在配料中的纤维上,从而降低涂料粘合剂的趋势 并且涂覆的颜料破碎以积累,导致造纸机械上的沉积物,其最终可能导致成形纸的缺陷。 支链多胺和DADMAC的平均重量分子量范围为50万至700万,丙烯酰胺的平均重量分子量为3至700万。
    • 74. 发明申请
    • METHOD FOR PAPER MACHINE CLEANLINESS
    • 纸机清洁方法
    • WO01025535A1
    • 2001-04-12
    • PCT/US2000/026570
    • 2000-09-27
    • D21F1/30D21F5/02D21G9/00D21H21/02
    • D21F1/30D21F5/02D21G9/0009D21H21/02
    • Disclosed is a method for considering system-wide operation parameters in a paper machine for overall regulation of machine operations, including, e.g. runnability and/or cleanliness, and are especially suited for paper making systems having a high degree of water closure. Disclosed methods include combinations of retention agent in the wet end of a paper machine and dryer passiviation in the dryer section of a paper machine. Also disclosed are methods for controlling operation parameterss in disparate segments of a paper machine; methods for measuring variables and adjusting parameters which couple operations in disparate segments of a paper machine; and methods for maintaining cleanliness in a papermaking machine through control of parameters in the wet and dry ends of the machine.
    • 公开了一种用于考虑机器操作的总体调节的造纸机中的全系统操作参数的方法,包括例如。 运行性和/或清洁度,并且特别适合于具有高水封闭的造纸系统。 公开的方法包括在造纸机的湿端中的保留剂和造纸机的干燥器部分中的干燥器的干燥剂的组合。 还公开了用于控制造纸机的不同部分中的操作参数的方法; 用于测量变量和调整参数的方法,该参数在造纸机的不同部分中耦合操作; 以及通过控制机器的湿端和干端的参数来保持造纸机中的清洁度的方法。