不同纺纱流程下色纺纱色差对比

针对有些企业用一种纺纱方法纺色纺纱小样，在小样被接受后，用另一种纺纱方法纺批次样，然而所得批次样与小样之间的色差能否被接受的问题，本文将相同配比的有色纤维混合体，分别通过环锭纺、转杯纺以及快速纺三种不同的小样纺纱流程纺成纱线，绕在纸板上，再经过测色仪测色，比较不同纺纱流程下纱线之间的色差，并对造成色差的原因进行分析。结果表明：转杯纺纱线与快速纺纱线之间的色差均值为0.36CMC(2:1)单位，环锭纺纱线与快速纺纱线之间色差均值为0.95CMC(21:1)单位，环锭纺纱线与转杯纺纱线之间色差均值为0.77CMC(2:1)单位，造成色差的主要原因是成纱方法不同，引起纱线结构与纱线表面状态不同，进而对不同波长的光线反射率也不同。

Color difference comparison of colored spun yarns by different spinning processes

After colored spun yarn samples produced by one spinning method are accepted, sometimes it is not sure that the color difference between this sample and batch samples prodrced by another spinning method isaccepted. In this paper, colored fiber mixtures with the same proportion were spun into yarns byring spinning, rotor spinning and fast spinning, respectively. Then the yarns were wound onto a paperboard and messured with the color measurement instrument.The color differences were compared and the reasons werediscussed. The results showed that the color difference mean value of thecolored yarns spunby rotor spinning process and fast spinning process is 0.36 CMC(2:1) , the color difference mean value of the colored yarn spunby ring spinning process and fast spinning process is 0.95 CMC(2:1) , andthe color difference mean of the colored yarn spunby ring spinning process and rotor spinning process is 0.77 CMC(2:1). The main reason is the different structures andsurface of the yarns caused by different spinning processes, which leads to different reflectances at various wavelengths.