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    Method of providing bleached papermaking fibres with durable curl and their absorbent products
    3.
    发明公开
    Method of providing bleached papermaking fibres with durable curl and their absorbent products 审中-公开
    一种用于生产具有永久卷曲漂白纸纤维和其吸收产品过程

    公开(公告)号：EP1132517A1

    公开(公告)日：2001-09-12

    申请号：EP01302057.3

    申请日：2001-03-06

    申请人： GEORGIA-PACIFIC CORPORATION

    发明人： Lee, Jeffrey A.

    IPC分类号： D21C9/10 ,  D21H11/16

    CPC分类号： D21H11/16 ,  D21C9/007 ,  D21C9/1089 ,  D21C9/163 ,  Y10T428/249921

    摘要： A process for bleaching high bulk cellulosic fiber and producing a durable elevated curl index includes: (a) concurrently bleaching, heat treating and convolving cellulosic fiber pulp at elevated temperature and pressure at high consistency generally under conditions selected so as to preclude substantial fibrillation and attendant paper strength and fiber bonding development; and (b) recovering the pulp wherein the length weighted curl index of the treated fiber is at least about 20% higher than the length weighted curl index of the fiber prior to the heat treatment and convolving thereof. Preferably, the curl imparted to the fiber persists upon treatment for 30 minutes in a laboratory disintegrator at 3000 rpm at 1% consistency at a temperature of 125°F. Moreover, the curl may be imparted to the fiber in a disk refiner at very short residence times, on the order of several seconds or less. In general, the process is carried out in the presence of saturated steam at a pressure of from about 5 to about 150 psig.

    摘要翻译： 一种漂白高堆积纤维素纤维和制造耐用升高的卷曲指数过程包括：（1）同时漂白，热处理和在升高的温度和压力下在高稠度基因反弹选择，以便排除大量原纤化和随之而来的条件下进行卷积纤维素纤维浆 纸的强度和纤维粘结发展; 和（b）回收所述纸浆worin处理的纤维的长度加权卷曲指数比现有的热处理和它们的卷积纤维的长度加权卷曲指数高至少约20％。 优选地，给予纤维的卷曲在以1％的稠度3000rpm下处理时供在实验室粉碎机30分钟持续在125℃F的温度更结束，卷曲可能在非常短的赋予在盘磨机的纤维 停留时间，几秒钟或更小的量级。 一般来说，该方法是在饱和蒸汽在约5的压力存在下进行，以约150psig。

    HERSTELLUNG UND VERWENDUNG VON IMINODIBERNSTEINSÄURESALZEN
    4.
    发明公开
    HERSTELLUNG UND VERWENDUNG VON IMINODIBERNSTEINSÄURESALZEN 失效
    HERSTELLUNG UND VERWENDUNG VONIMINODIBERNSTEINSÄURESALZEN

    公开(公告)号：EP0975582A1

    公开(公告)日：2000-02-02

    申请号：EP98917048.5

    申请日：1998-03-23

    申请人： BAYER AG

    发明人： GROTH, Torsten ,  JOENTGEN, Winfried ,  WAGNER, Paul ,  DÖBERT, Frank ,  WENDEROTH, Eckhard ,  ROICK, Thomas

    IPC分类号： C07C229/24 ,  C07C227/08

    CPC分类号： D21C9/1089 ,  C07C227/06 ,  D21C9/1042 ,  D21C9/163 ,  C07C229/24

    摘要： Iminodisuccinic acid alkaline salts can be prepared by reacting maleic acid anhydride (MAA), alkali metal hydroxide (MeOH), NH3 and water in a molar ratio of MAA : MeOH : NH3 : H2O = 2 : 0.1 - 4 : 1.1 - 6.5 : 5 - 30 at 70 - 170 °C and 1 - 80 bar for 0.1 - 100 hours. The reaction mixture is mixed with additional H2O and optionally MeOH and is freed distillatively of NH3 at 50-170 °C and 0.1-50 bar and then set at a solids content of 5 - 60 weight % using H2O. The iminodisuccinic acid alkaline salts can be used to increase the brightness and brilliance of plant fibres in paper manufacture.

    摘要翻译： 亚氨基二琥珀酸碱性盐可以通过马来酸酐（MAA），碱金属氢氧化物（MeOH），NH 3和水以摩尔比MAA:MeOH:NH 3 :H 2 O = 2:0.1-4:1.1-6.5:5反应来制备 - 在70-170℃和1-80巴30℃下进行0.1-100小时。 将反应混合物与另外的H 2 O和任选的MeOH混合，并在50-170℃和0.1-50巴下蒸馏除去NH 3，然后使用H 2 O将固体含量设定为5-60重量％。 亚氨基二琥珀酸碱性盐可用于增加造纸厂中植物纤维的亮度和光泽度。

    Process for deinking recycled paper pulp
    9.
    发明公开
    Process for deinking recycled paper pulp 失效
    一种用于回收废纸纸浆的脱墨方法

    公开(公告)号：EP0777011A3

    公开(公告)日：1997-09-17

    申请号：EP97100778.6

    申请日：1993-06-29

    申请人： MORTON INTERNATIONAL, INC.

    发明人： Hache, Maurice ,  Prosperi, Sheri

    IPC分类号： D21C5/02 ,  D21C9/10

    CPC分类号： D21C9/1089 ,  D21C5/027 ,  D21C9/1084 ,  Y02W30/648

    摘要： Recycled paper pulp is deinked by treating it at neutral or alkaline pH with an aqueous deinking composition comprising sodium hydrosulfite Na 2 S 2 O 4 as a reducing agent. The deinking composition is preferably an alkaline solution containing sodium hydroxide. The pulp is preferably treated at a consistency from 2 to 15%, and the treatment works particularly well with pulp at a relatively low consistency such as 4%. The hydrosulfite can be generated by a reaction of sodium bisulfite and sodium borohydride in aqueous alkaline solution.

    Process for de-inking recycled paper pulp
    10.
    发明公开
    Process for de-inking recycled paper pulp 失效
    Verfahren zum Deinken von wiederverwendeten Papierzellstoff。

    公开(公告)号：EP0577396A1

    公开(公告)日：1994-01-05

    申请号：EP93305091.6

    申请日：1993-06-29

    申请人： MORTON INTERNATIONAL, INC.

    发明人： Haché, Maurice ,  Prosperi, Sheri

    IPC分类号： D21C5/02 ,  D21C9/10

    CPC分类号： D21C9/1089 ,  D21C5/027 ,  D21C9/1084 ,  Y02W30/648

    摘要： Recycled paper pulp is de-inked by treating it at neutral or alkaline pH with an aqueous deinking composition comprising one or more reducing agents. The preferred reducing agents are sodium bisulfite and sodium borohydride. Sodium hydroxide is preferably used to give the desired pH.

    摘要翻译： 使用包含一种或多种还原剂的水性脱墨组合物在中性或碱性pH下处理再循环纸浆脱墨。 优选的还原剂是亚硫酸氢钠和硼氢化钠。 优选使用氢氧化钠以得到所需的pH。