【摘要】 主要研究了pH值对天然绿色棉颜色的影响变化规律,并用测色配色系统测试处理后织物的明度变化ΔL值、色调变化Δa、Δb值,结果表明绿棉在酸性条件下明度增大,红黄色光增加;在碱性条件下明度降低,红蓝色光增加.采用化学方法检验绿棉色素的主要官能团,并结合绿棉织物的颜色变化规律证明绿棉色素中含有黄酮类化合物.更多还原

【Abstract】 The influence of pH on the color of the naturally green cotton is studied in this paper. Moreover, ΔL,Δa and Δb are obtained with the color measuring and matching system. Conclusion has been drawn that the color of green cotton turns to light, red and yellow under the acidic term, however turns to dim, red and blue under the alkaline term. The analysis shows that there is flavonoid substance in the pigment in the green cotton.更多还原