Analysis of Dyeing Mechanism in Multiple Layrs Wool Fabric (Laminates) as Fiber Assembly Model

纤维集合体染色过程中，由于扩散边界层造成的吸附延迟是不可避免的。在羊毛染色中，染色速度会受到扩散层和表层等屏障的传质过程的影响。我们测量了未经处理的羊毛纤维和电晕放电羊毛纤维(16倍)的平衡上染率和上染率。电晕放电羊毛纤维的平衡上染率与未处理羊毛纤维的平衡上染率相同。电晕放电羊毛纤维的上染率略高于未处理羊毛纤维。采用亲水性多功能环氧体(甘油聚缩水甘油醚-GPE)对羊毛纤维进行处理。切片的透射电子显微镜观察结果AgNO_3染色的样品表明，GPE主要分布在非角化区，如CMC和大纤维间区，类似于染料分子在羊毛中的扩散。在浓的氯化钠水介质中，反应部位局限在纤维的外表面非角化区。这些信息证实了染料分子在CMC中的扩散机理。研究了羊毛纤维作为色谱柱固定相的行为，证实了这种扩散机理。建立了多层织物浓度分布曲线的理论方程。为了简化扩散过程，使用了去鳞(去鳞)羊毛织物。我们测试了我们的方法对酸性染料在多层羊毛织物中扩散的适用性。我们估算了用于羊毛纤维组装的有用扩散参数。

The sorption delay due to the diffusional boundary layr is inevitable in dyeing of fiber assembly. In the case of wool dyeing, the dyeing rate can be influenced by the mass-transfer process in the diffusional layr and the barrier such as an epicuticle. We measured the equilibrium dye uptake and the dyeing rate for a untreated wool fiber and a corona discharged wool fiber(sixteen-fold). The equilibrium dye uptake of the corona discharged wool fiber was the same as that of the untreated wool fiber. The dyeing rate of the corona discharged wool fiber was slightly larger than that of the untreated wool fiber. Wool fibers were treated with hydrophilic multifunctional epoxid(glycerol polyglycidyl ether-GPE). TEM observation results of the cross-sections the samples stained with AgNO_3 revealed that GPE were mainly accommodated in nonkeratinous region such as CMC and intermacrofibrillar region, like the diffusion of dye molecules in wool. In the concentrated NaCl aqueous medium, the reaction sites were restricted in the outer surface nonkeratinous region of fiber. The diffusion mechanism of dye molecules across CMC was confirmed by these information. Liquid chromatographic behavior of wool fiber, as column stationary phase was investigated to confirm this diffusion mechanism. The theoretical equation was set up for a concentration distribution curve in a multiple layrs of fabric. A descaled(decuticled) wool fabric was used to simplify the diffusion process. We examined the applicability our method to the diffusion of an acid dye in multiple layrs of decuticled wool fabric. We estimated the useful diffusion parameters for wool fiber assembly.