Utilization supercritical CO₂ to conduct the anhydrous dyeing of polymers, as one of the most important candidates instead of water dyeing, has been highly concerned by textile industry due to its environmental friendliness, energy preservation and recyclability of CO₂ and chemicals. In order to investigate an efficient color matching database of supercritical CO₂ dyeing, polyester dyeing was carried out with Disperse Red 54, Disperse Blue 79 and Disperse Red 167. The basic database of the three disperse dyes in supercritical CO₂ was established using the Kubelka-Munk Theory with Single Constant. The results showed that the build-up curves of Disperse Blue 79, Disperse Red 54 and Disperse Red 167 at 610 nm, 480 nm and 520 nm are convex upwardly rather than straight. Large deviation between the calculated K/S data and the experimental ones of the dyed polyester is emerged because the color depth at the maximum absorption wavelength is affected by other dyes in supercritical CO₂. By introduction of correction coefficients, less than 6 % deviation values between the calculated K/S values and the experimental ones can be obtained with the revised Kubelka-Munk Theory with Single Constant. The revised equation displays obvious potential application value to reduce the chromatic aberration in the color measurement and matching of supercritical CO₂ waterless dyeing.

利用超临界CO ₂进行聚合物的无水染色，而不是水染，是最重要的候选方法之一，由于其对环境友好，节能，CO ₂和化学物质可回收利用，因此受到了纺织工业的高度关注。为了研究超临界CO ₂染色的高效配色数据库，使用分散红54，分散蓝79和分散红167进行了聚酯染色。超临界CO _2中三种分散染料的基本数据库是使用具有单常数的Kubelka-Munk理论建立的。结果表明，分散蓝79，分散红54和分散红167在610 nm，480 nm和520 nm处的累积曲线向上凸，而不是笔直。由于在超临界CO _2中其他染料影响最大吸收波长的色深，因此计算出的K / S数据与染色聚酯的实验数据之间会出现较大偏差。。通过引入校正系数，可以使用修正的具有单常数的Kubelka-Munk理论获得小于等于6％的K / S值与实验值之间的偏差值。修正后的方程显示出明显的潜在应用价值，可降低色度测量和超临界CO ₂无水染色的配色。