Wool regeneration protein and polyacrylonitrile crossblend fiber are tested and analyzed, and the results show that this new fiber has maintained fine properties of both wool and polyacrylonitrile, such as higher elongation at break, lower breaking strength, higher crimp elasticity and higher moisture adsorption ratio. Meanwhile it is resistant to mild acid, weak alkali, and ordinary organic solvents, and resistant to some reducing agent and oxidant under low temperature conditions. It has characteristic functional groups of both wool and polyacrylonitrile, so it can he dyed by acid dye or cationic dye. There are special characteristics in bleaching and dyeing of this fdber. The optimum bleaching condition after pretreated fdber with FeSO4 is using H2O2 bleaching, thus, the fiber can be maintain required whiteness. A new idea was brought out, that is, to make a new type of mixed dyestuff designed specially for the dyeing of this fiber. The method of making this special dyestuff is drying the cationic dye and the anti-precipitant as the mass ratio is 1 : 7 ～ 1 : 9, and then mixed with acid dyes. This has provided a theoretic reference for dyestuff exploitation of this new type of fiber or similar fibers and fir dyeing and finishing.%测试、分析并评价羊毛再生蛋白-聚丙烯腈共聚纤维的部分物理化学性能.发现该纤维的断裂伸长率较大,断裂强度较低,卷曲弹性较高,吸湿回潮率高,保持了羊毛和腈纶的各自的优良性能;耐弱酸、弱碱性较好,且耐酸性较耐碱性好,耐一般有机溶剂性好,在中、低温条件下耐还原氧化性能好.纤维具有羊毛及腈纶的特征基因.研究羊毛再生蛋白-聚丙烯腈共聚纤维的染整性能与加工工艺可用酸性染料或阳离子染料染色.认为染整加工中该纤雏的漂白与染色问题具有特殊性.确定了亚铁离子预处理,H2O2漂白的工艺条件,达到了染整加工要求的白度.提出制备一种新型混合染料专门用于该纤维的染色加工的新思路.采用电导法确定阳离子染料与防沉淀剂的质量比按1:7～1:9混合后,再与酸性染料混合,制备出了该纤雏的专用染料,为这种新型纤维品种或类似纤维品种的染料开发与染整加工提供参考.
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