品阶

印刷品阶调与明度感觉的关系

The Relationship between Dot Area of Printed Products and Perceived Lightness

镭射卡纸表面特性及印品阶调、色彩再现的研究

Surface Properties and Printed Matter Tone and Color Rendering of Laser Paper

较强的淀粉阳离子性，较高的S：MA比例有利于最终印品阶调、色偏、轮廓清晰度和墨层匀度的提高。

The stronger cationic of starch , the higher ratio of S : MA help to improve the gray scale , color difference , contour sharpness and uniformity of ink film of end prints .

在实验中以铜版纸为对比，通过作出镭射卡纸的阶调再现曲线，分析网点扩大情况，来研究镭射卡纸对印品阶调再现产生的影响。

In the experiments , we will draw the tone rendering curve of laser by contrasting with art paper and analyze dot enlargement in order to study the affection to tone rendering of laser paper .

为了确保印品阶调和色彩再现的合理性，通过实验作出印刷反差和色彩反差曲线，得到镭射卡纸的最佳实地密度的范围所在。

In order to assure rationality of tone arid color rendering of printed matter , we will draw the printing contrast and color contrast curve through the experiments , meanwhile we will analyze the two contrast by mathematical way to get the optimal solid density of laser paper .