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通过进行直接染料标准溶液的吸光度A-浓度[C]的标准曲线和PVA膜染色实验,分析了染料的吸光系数与PVA膜的染色深度成正比关系,与偏光子的透过率成反比关系。并阐述了染料吸光系数在染料系偏光片PVA膜染色中的应用,为染料系偏光片试验、生产使用各种染料的需用量提供了一个有效的分析方法,不同染料可以根据吸光系数来判断达到规定透过率的染料用量,同时可以选择吸光系数较大的染料进行生产,既提高效率降低成本,又大大降低环境染料。这些研究对于染料系偏光片的工艺完善有着重大研究意义。
Through the standard curve of absorbance A-concentration [C] and the PVA film dyeing experiment of direct dye standard solution, it was analyzed that the absorption coefficient of the dye is directly proportional to the depth of dyeing of the PVA film and inversely proportional to the transmittance of the polarizer. The application of dye absorption coefficient in PVA film dyeing of dye-based polarizer is described. An effective analytical method is provided for dye-based polarizer test and production of various dyes. The different dyes can be judged according to the extinction coefficient The provisions of the transmittance of the dye dosage, while the choice of larger absorbance dye production, both to improve efficiency and reduce costs, but also greatly reduce the environmental dye. These studies for the dye-based polarizer process has great significance.