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BuKe factory >> knowledge >> 關於印務公司印刷機的水潤濕系統

關於印務公司印刷機的水潤濕系統

From:Buke printing factory of China步殼印刷廠 | Author:China Bukeprinting factorybook0755 | Published time: 2020-07-18 | 424 Views | 🔊 Click to read aloud ❚❚ ▶ | Share:
印務公司印刷機的水潤濕系統​在潤濕液中加入酒精可以顯著降低水的錶面張力,因此,在印刷時可以減小供水量,保持潤版液的穩定性。在達到水墨平衡時油墨中的含水量低,不乾擾和不影響圖文墨跡的乾燥,可以獲得鮮艷的墨色,同時不會因為印刷時紙張含水量過高引發變形而影響套印。
關於印務公司印刷機的水潤濕系統

印務公司印刷機的水潤濕系統在潤濕液中加入酒精可以顯著降低水的錶面張力,因此,在印刷時可以減小供水量,保持潤版液的穩定性。在達到水墨平衡時油墨中的含水量低,不乾擾和不影響圖文墨跡的乾燥,可以獲得鮮艷的墨色,同時不會因為印刷時紙張含水量過高引發變形而影響套印。

印務公司印刷機的水潤濕系統採用無絨水輥,可以避免絨毛黏附印版而產生臟版現象。另外使用酒精潤濕系統可以縮短水墨平衡時間,減少過版紙的數量,節約用紙。用水量的多少不受機器速度的影響而隨意調節。綜上所述,現代高檔膠印機均採用酒精潤濕系統,以獲得高質量的印品來適應市場要求。

但是,使用酒精潤濕系統也存在以下的缺點:首先,含有酒精的潤濕液與普通潤濕液相比價格昂貴,且酒精易揮發,易造成空氣污染。

印務公司印刷機的水潤濕系統在工作時要求形成的水膜薄而均勻,對水輥及傳動系統的精度要求較高。另外,為了降低酒精的揮發性,還須冷卻酒精潤濕液,這樣又提高了整個系統的成本。

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