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    • 5. 发明公开
    • CELLULOSEFASER UND VERFAHREN ZU IHRER HERSTELLUNG
    • VERFAHREN ZU IHRER HERSTELLUNG的细胞培养基
    • EP2294259A1
    • 2011-03-16
    • EP09768599.4
    • 2009-06-18
    • Lenzing Aktiengesellschaft
    • FUCHS, HeidrunDOBSON, Peter
    • D06M11/71D06M11/76D06M11/82D06M13/184D06M13/358D06M13/432D06M101/06
    • D06M13/358D06M11/71D06M11/76D06M11/82D06M13/184D06M13/432D06M2101/06Y10T428/2965Y10T442/30Y10T442/40
    • The invention relates to a cellulose fiber of the lyocell type, which has been treated with a cross-linking agent, wherein the cross-linking agent induces fibrillation protection on the fiber and has the following properties: - the fibrillation protection induced by the cross-linking agent changes during storage of the fiber within a pH range of 4.0 to 10.0, particularly under the action of moisture and/or heat, – within the pH range of 4.0 to 10.0 an optimum value exists, at which the stability of the fibrillation protection induced by the cross-linking agent during storage is the greatest, - around the optimum value a suitable range exists, in which the stability with respect to the stability at the optimum value is reduced by no more than 20%, - the suitable range is delimited within the pH range of 4.0 to 10.0 by at least one threshold value, at which the stability with respect to the long-term stability at the optimum value is reduced by 20% and beneath or above which the stability is further reduced, - the cross-linking agent has the potential to change the pH value. The fiber according to the invention is characterized in that the fiber comprises a substance that buffers in the suitable range and in the suitable range has a buffer capacity of at least 12 mmol/kg fiber, preferably 15 to 70 mmol/kg fiber.
    • 本发明涉及用交联剂处理的Lyocell属的纤维素纤维,其中交联剂诱导纤维上的原纤维保护,并表现出以下性质:通过交联诱导的免于原纤维化的保护 如果纤维储存在4.0至10.0的pH范围内,特别是在水分和/或热的影响下,在4.0至10.0的pH范围内,则药剂会发生变化,存在保护免于原纤维化的稳定性的最佳值 在保存期间由交联剂诱导的最高值是在与最佳值下的稳定性相比在4.0至10.0的pH范围内最稳定性降低20%的最佳值存在适当的范围, 合适的范围受到与最佳值下的长期稳定性相比稳定性降低20%的极限值和稳定性进一步降低的至少一个极限值的限制 分别低于和高于所述值,并且交联剂具有改变pH值的能力。 根据本发明的纤维的特征在于纤维包含适当范围的缓冲物质,并且在合适的范围内表现出至少约12mmol / kg纤维,优选约15至约70mmol / kg纤维的缓冲能力 范围。