基于分光光度法的自校准式纺织面料颜色测量方法

Self-calibration method for color measurement of textile fabrics based on spectrophotometry

评定纺织品的色度和色差是纺织品检验的重要项目之一,传统人工比对方法效率低且易受主观因素影响,仪器测色方法因为检测的准确度和稳定性尚未充分检验而推广受限。本研究建立了一种基于分光光度法的自校准式颜色测量方法。该方法对传统分光测色仪改进,通过专用软件控制试样载台移动实现一测一校式颜色测量,由分光光度传感器获取样品的反射光谱数据后,自动计算纺织品颜色的三刺激值X、Y、Z等值。先后对三组包含不同组织和颜色特征的织物试样进行测量,分析该方法对颜色数据检测的准确性、可重复性和稳定性,结果表明:基于分光光度法的自校准颜色测试方法测量结果准确,数据稳定性高、重复性好,并且仪器校准快速,对环境因素变化的抗干扰能力好,适用于纺织面料色度色差测量。

The assessment of color and color difference in textiles is a crucial aspect of textile inspection.Traditional manual comparison methods are inefficient and susceptible to subjective factors.Instrumental color measurement methods,although limited in widespread adoption due to insufficient evaluation of accuracy and stability,present an opportunity for improvement.In this study.a self-calibration color measurement method based on spectrophotometry is proposed.The method enhances traditional spectrophotometers by utilizing dedicated software to control the movement of the sample platform for a one-measurement-one-calibration approach.After acquiring the reflectance spectral data through a spectrophotometric sensor,the method automatically calculates the tristimulus values X,Y,Z for textile color.Three sets of fabric samples with different structures and color characteristics were measured successively to analyze the accuracy,repeatability,and stability of the color data obtained by this method.The results indicate that the self-calibration color measurement method based on spectrophotometry provides accurate results,high data stability,good repeatability,rapid instrument calibration,strong resistance to environmental changes,and is suitable for measuring color and color difference in textile fabrics.