VERFAHREN ZUR HERSTELLUNG EINES CHEMIEZELLSTOFFES
    31.
    发明公开
    VERFAHREN ZUR HERSTELLUNG EINES CHEMIEZELLSTOFFES 有权
    用于生产化学电池物质

    公开(公告)号:EP1753908A1

    公开(公告)日:2007-02-21

    申请号:EP05741840.2

    申请日:2005-05-20

    发明人: SIXTA, Herbert

    IPC分类号: D21C11/04 D21C11/00 D21C9/08

    摘要: The invention relates to a method for producing a chemical conversion pulp, which comprises the following steps: obtaining a chemical pulp by conventional pulping methods, at least one alkaline pulping step, in which the chemical pulp is treated with lye and then squeezed out, optionally additional steps of cleaning and/or bleaching the chemical pulp. A least a part of the lye remaining from the alkaline pulping step after squeezing is returned to treat the chemical pulp. The inventive method is characterized in that the content in beta cellulose of at least a part of the lye to be returned is reduced before the chemical pulp is treated.

    CELLULOSEFASER
    34.
    发明公开
    CELLULOSEFASER 有权
    使用纤维素纤维

    公开(公告)号:EP1534882A1

    公开(公告)日:2005-06-01

    申请号:EP03793457.7

    申请日:2003-09-01

    IPC分类号: D01F2/00

    CPC分类号: D01F2/00

    摘要: The invention relates to a cellulose fiber which is characterized by a biological decomposition rate of less than 60 percent after 20 weeks and in which the grade for sensitivity to eurotium rubrum at 85 percent atmospheric humidity is less than 2 after 4 weeks.

    VERFAHREN ZUR HERSTELLUNG CELLULOSISCHER FASERN
    38.
    发明公开
    VERFAHREN ZUR HERSTELLUNG CELLULOSISCHER FASERN 有权
    方法制备纤维素纤维

    公开(公告)号:EP1299583A1

    公开(公告)日:2003-04-09

    申请号:EP01944725.9

    申请日:2001-06-28

    IPC分类号: D01F2/00 D01D5/088

    CPC分类号: D01D5/088 D01F2/00

    摘要: The invention relates to a method for producing cellulose fibres. According to said method, a solution of cellulose in a tertiary amino oxide is extruded through the spinning holes of a spinneret and the extruded filaments are fed into a precipitation bath whilst being drawn via an air gap. The filaments are exposed to a gaseous stream in the air gap. The invention is characterised in that the temperature (T) of the gas prior to the contact with the filaments is represented by the formula: 60 °C

    VERFAHREN ZUM AUSTRAGEN EINER CELLULOSESUSPENSION AUS EINEM GEFÄSS
    40.
    发明授权
    VERFAHREN ZUM AUSTRAGEN EINER CELLULOSESUSPENSION AUS EINEM GEFÄSS 无效
    方法用于排出容器的纤维状纤维素悬浮液

    公开(公告)号:EP0766753B1

    公开(公告)日:1999-08-11

    申请号:EP96905590.4

    申请日:1996-03-25

    IPC分类号: D01D1/06 D01F2/00

    CPC分类号: D01D1/06 D01F2/00

    摘要: The invention relates to a process for monitoring a flowing suspension of powdered cellulose in a liquid, aqueous tertiary amine oxide and features the combination of steps: (A) the suspension is inserted into a container with an inlet aperture for the suspension; (B) the suspension in the container is conveyed through it; and (C) the suspension conveyed through the container is extracted therefrom via an outlet aperture; in which (D) the container is weighed and the intake or extraction of the suspension is controlled in accordance with the differences from a predetermined reference value.