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    • 4. 发明授权
    • VERFAHREN ZUR HERSTELLUNG CELLULOSISCHER FASERN
    • EP0797696B1
    • 1998-07-29
    • EP96932374.0
    • 1996-10-08
    • LENZING AKTIENGESELLSCHAFT
    • EIBL, MarkusEICHINGER, Dieter
    • D01F2/00D02J1/06
    • D01F2/00D04H1/425D04H1/4258D04H3/16
    • The invention relates to a process for producing cellulose fibres comprising the steps (A) dissolving a cellulose-containing material in an aqueous tertiary amine oxide to obtain a spinnable cellulose solution; (B) spinning the cellulose solution and taking it through an aqueous precipitation bath, giving water-containing swollen filaments; (C) crushing the water-containing swollen filaments at different points so that there are at least two crushed points per millimetre of filament length, and (D) drying the crushed filaments to obtain cellulose fibres; in which the filaments are crushed under sufficient pressure so that the crushed points also remain on the dried fibre and are visible as colour changes when observed under linearly polarised light.
    • 本发明涉及生产纤维素纤维的方法,其包括以下步骤:(A)将含纤维素材料溶解在含水叔胺氧化物中以获得可纺纤维素溶液; (B)将纤维素溶液纺丝并将其通过含水沉淀浴,得到含水膨胀丝; (C)在不同点将含水溶胀长丝压碎,使每毫米长丝至少有两个压碎点,和(D)干燥粉碎的长丝以获得纤维素纤维; 其中细丝在足够的压力下被粉碎,使得粉碎的点也保留在干燥的纤维上,并且当在线偏振光下观察时可见颜色变化。