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BuKePrinting >> knowledge >> 灰色平衡在印刷廠中的應用

灰色平衡在印刷廠中的應用

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2021-05-12 | 1540 Views | Share:
灰色平衡在印刷廠中的應用

灰色平衡在印刷廠中的應用

通過三原色套印達到中性灰色的手段叫做灰色平衡。具體地講,是在一定印刷適性下(一定性能的紙張、油墨、版材、打樣或印刷的條件下),黃、品紅、青三原色版從淺到深按一定的網點比例組合套印,獲得不同明度的消色(白、淺灰、灰、深灰、黑),這個全過程叫印刷的灰色平衡。其意義是通過對畫麵灰色部分的控制,來間接控制整個畫面上的所有色調。它是衡量分色製版和彩色印刷是否正確的一種尺度,是復制全過程中各個工序進行數據化、規範化生產共同遵守和實施的原則。

灰色平衡在印刷廠中的應用
灰色平衡在印刷廠中的應用



印刷過程中影響灰色平衡的因素包括：

(1)印刷所用的原材料,主要指油墨、紙張等


(2)印刷條件,包括機器精度、印刷壓力、潤濕液等


(3)印刷色序;


(4)墨層厚度;


(5)環境溫濕度。


上述因素對印刷的灰色平衡有不同程度的影響。但灰色平衡一般都存在如下的事實上:任何一個灰色區域,青版的網點覆蓋率最大,黃品紅的網點覆蓋率基本接近,各種因素的影響會導致灰色平衡在數值上的不同。

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