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包裝印刷廠怎樣註意水墨平衡

From:Buke printing factory of China深圳步殼印刷廠 | Author:China Bukeprinting factorybook0755 | Published time: 2020-07-15 | 471 Views | 🔊 Click to read aloud ❚❚ | Share:
在日常印刷過程中,始終保持水墨平衡是十分重要的。除了要根據版面圖文大小和分佈情況及印刷用紙的性質、油墨的性能等實際情況正確掌握外,還應特別註意以下幾點
包裝印刷廠怎樣註意水墨平衡?

在日常印刷過程中,始終保持水墨平衡是十分重要的。除了要根據版面圖文大小和分佈情況及印刷用紙的性質、油墨的性能等實際情況正確掌握外,還應特別註意以下幾點

包裝印刷廠
(1)開印前必須使水輥均勻上水

(2)機器空轉時,應停止供水供墨,防止因水大墨大而使水墨失去平衡。

(3)(水車)新換的水輥絨套要緊而平,並且要兩端縫合牢固上機前,首先要將水輥充分潤濕,印刷時,還要將水分控制在能保持版面空白部分清潔的最低程度

(4)調墨時千萬不要把油墨調得過稀。如果油墨過稀,其流動性偏大,黏度和內聚力自然降低,導致抗水性能下降,易引起嚴重乳化,使墨跡在滾筒的壓力下鋪展擴大,嚴重時將產生糊版,影響產品質量。

(5)包裝印刷廠在印刷過程中,油墨往往容易黏在水輥錶面,且越積越厚面積越來越大,阻隔了水輥對印版的正常潤濕,造成上水不均勻使水墨失去平衡,造成印刷質量事故。

(6)正確調整水輥、墨輥的壓力是保證水墨平衡的先決條件如果壓力調節不當,往往會引起輸水輸墨不暢。

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