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    • 10. 发明申请
    • CELLULOSE FIBER AND PROCESS FOR THE PRODUCTION THEREOF
    • 纤维素纤维及其生产方法
    • US20110171865A1
    • 2011-07-14
    • US13001098
    • 2009-06-18
    • Heidrun FuchsPeter Dobson
    • Heidrun FuchsPeter Dobson
    • D03D15/00D21H17/07B32B5/02D04B1/14D02G3/02
    • D06M13/358D06M11/71D06M11/76D06M11/82D06M13/184D06M13/432D06M2101/06Y10T428/2965Y10T442/30Y10T442/40
    • The invention concerns a cellulose fiber of the genus Lyocell which is treated with a cross-linking agent, with the cross-linking agent inducing a protection from fibrillation on the fiber and exhibiting the following properties: the protection from fibrillation induced by the cross-linking agent changes if the fiber is stored within a pH range from 4.0 to 10.0, in particular under the influence of moisture and/or heat, within the pH range from 4.0 to 10.0, an optimum value exists at which the stability of the protection from fibrillation induced by the cross-linking agent during storage is highest a suitable range exists around the optimum value in which the stability is reduced by 20% at the most, compared to the stability at the optimum value, within the pH range from 4.0 to 10.0, the suitable range is limited by at least one limiting value at which the stability is reduced by 20% compared to the long-term stability at the optimum value and with a further decrease in stability occurring below and above said value, respectively, and the cross-linking agent has the capability to change the pH value. The fiber according to the invention is characterized in that the fiber comprises a buffering substance in the suitable range and exhibits a buffer capacity of at least about 12 mmol/kg fiber, preferably from about 15 to about 70 mmol/kg fiber, in the suitable range.
    • 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具有以下性质:通过交联诱导的免于原纤维化的保护 如果纤维在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范围内储存,则会发生变化,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 环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。