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BuKePrinting >> Bookprinting >> PS版上機印刷後為什麽會出現底臟?

PS版上機印刷後為什麽會出現底臟?

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2020-09-14 | 388 Views | Share:
PS版上機印刷後有時出現底臟,也有不同的情況和不同的產生原因。

PS版上機印刷後為什麽會出現底臟?

PS版上機印刷後有時出現底臟,也有不同的情況和不同的產生原因。

其一,可能是曝光不足,這其中有兩種可能:

             一是膠片的透明度不好或膠片過期灰霧度大;

    二是曝光光源使用時間過長,出現老化現象。如果遇到第一種情況,只能是重新製作膠片;若是曝光光源的問題則要借用灰梯尺,適度調整曝光時間或直接更換曝光光源。


其二,PS版沖洗時顯影不良,也有可能造成版面出現底臟,此時就要檢查出顯影不良的具體原因,及時調整到標準條件,如沖洗液的濃度、溫度等。

PS版上機印刷後為什麽會出現底臟?
PS版上機印刷後為什麽會出現底臟?

 

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