The result shows that the lightness and colour saturation of the yarn vary with the twist according to the rule of negative exponent, and its hue of colour increases slightly.

测试结果表明：随着纱线加捻程度的增加，着色涤纶长丝纱线颜色的色度指标明度、饱和度呈负指数规律下降，色调角略有增大。

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Any of a group of colors between red and yellow in hue that are medium to low in lightness and low to moderate in saturation.

一组介于红黄间的颜色，亮度由适中到低，色彩的饱和度由低到适中。

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Any of a group of colors reddish in hue, of medium to high lightness, and of low to moderate saturation.

粉红色色彩中略带红色的颜色中的一组，亮度中到高等。

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