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    • 3. 发明申请
    • PROCESS FOR THE MANUFACTURE OF SOLID REGENERATED VISCOSE FIBRES
    • 固体再生粘胶纤维的制造工艺
    • WO2004005595A1
    • 2004-01-15
    • PCT/EP2003/006926
    • 2003-06-30
    • LENZING AKTIENGESELLSCHAFTSCHMIDTBAUER, JosefSCHMIDT, HeinrichSCHIEMER, Susanna
    • SCHMIDTBAUER, JosefSCHMIDT, HeinrichSCHIEMER, Susanna
    • D01F2/06
    • D01D5/06D01D5/253D01F2/06D01F2/08D01F11/02
    • The present invention concerns a process for the manufacture of solid regenerated viscose fibres, comprising the steps of: - spinning a viscose spinning dope through a spinneret comprising spinning holes into a regenerating bath thereby forming filaments, - said viscose spinning dope having an alkali ratio immediately before spinning of from 0.7 to 1.0, preferably from 0.8 to 0.9, - at least part of said spinning holes having a circular orifice, - said regenerating bath containing - from 70 to 120 g/l, preferably 90 to 110 g/1 sulfuric acid, - from 240 to 380 g/l, preferably 330 to 370 g/l sodium sulphate, - form 20 to 50 g/l, preferably 25 to 35 g/l zinc sulphate and said regenerating bath having a temperature of from 45 to 55°C, preferably 48 to 50°C, - stretching said filaments after leaving said regenerating bath in a secondary bath and/or in air at a stretching ratio of from 70 % to 90 %, preferably 80 % to 90 % of the maximum stretching ratio as hereinbefore defined and - treating said filaments with a fatty acid ester.
    • 本发明涉及一种制造固体再生粘胶纤维的方法,包括以下步骤: - 将粘胶纺丝原液通过包括纺丝孔的喷丝头纺丝到再生浴中,从而形成长丝, - 所述粘胶纺丝原液具有碱比率 在旋转0.7至1.0之间,优选0.8至0.9之间, - 至少部分所述纺丝孔具有圆形孔口, - 所述再生浴含有70至120g / l,优选90至110g / l硫酸 ,240〜380g / l,优选为330〜370g / l硫酸钠, - 20〜50g / l,优选为25〜35g / l的硫酸锌,所述再生浴的温度为45〜55℃ ℃,优选48至50℃, - 在第二浴和/或空气中将所述再生浴在拉伸比为最大拉伸的70%至90%,优选80%至90%的拉伸比下拉伸所述长丝 比例如上所述和 - 治疗 用脂肪酸酯处理所述长丝。