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    色牢度仪器评级法对不同纺织品的适用性

    Applicability of Instrument Rating Methods for Color Fastness on Different Types of Textiles

    • 摘要: 为了研究仪器评级法对不同类型纺织品的适用性,利用分光光度计、色差仪和数字图像评级系统,在多种测试条件下对具有不同表面特征的织物进行色牢度评定,并将评级结果与目光法评级结果进行对比分析;其中测试条件包括色差公式、标准光源、几何条件和视场角等,纺织品的类型有不平整织物、涂层织物、网眼织物、多色花型织物、绒毛织物、光泽织物。结果表明:织物色牢度受织物表面特征的影响较大;除个别颜色织物外,仪器评级法适用于大多数织物;不同的仪器适用于评定不同类型的织物;在使用仪器法评价织物色牢度等级时,应综合考虑织物的表面特征来选择合适的测试仪器和条件;对于特殊织物的色牢度,应将仪器评级法与目光评级法结合进行综合评价。

       

      Abstract: In order to study the applicability of instrument rating methods on different types of fabrics, the spectrophotometer, colorimeter and digital image grading system were used to evaluate the color fastness of textiles with different surface characteristic in different conditions. The rating results of instruments were compared with the visual rating results. The testing conditions included color-different formulas, standard illuminants, geometric conditions, field angles and so on. The types of fabrics included uneven fabrics, coating fabrics, mesh fabrics, multicolor pattern fabrics, nap fabrics and shiny fabrics. The results show that: the color fastness of fabrics was greatly affected by the surface characteristic of fabrics; instrument rating methods were suitable for most textiles except individual textiles in some colors; different instruments were suitable to evaluate different types of fabrics; the surface characteristic of fabrics should be taken into account comprehensively when choosing suitable testing instruments and conditions to evaluate the color fastness of textiles; for the color fastness of special fabrics, instrumental methods should be combined with visual assessment to evaluate comprehensively.

       

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