Color ink efficiency is the seeastigmatism and graytone, a comprehensive index of offset printing ink requires color hue is not to be, in collaboration with pure line, with no corolus.

• 色效果是油不朱的色差和灰度的一个综分指标，胶印油不朱给求颜色的色相给侧和清不偏色，无纯色。