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BuKe factory >> Questions >> 深圳印刷廠家有水膠版印刷使用潤版液的目的是什麽

深圳印刷廠家有水膠版印刷使用潤版液的目的是什麽

From:Buke printing factory of China步殼印刷 | Author:China Bukeprinting factorybook0755 | Published time: 2020-07-10 | 504 Views | 🔊 Click to read aloud ❚❚ ▶ | Share:
(1)在印版的空白部分形成排斥油墨的水膜,抗拒圖文上的油墨向空白部分擴張,防止臟版。​(2)增補印刷中被破壞的親水層,維持空白部分的親水性。​(3)降低印版錶面的溫度。
深圳印刷廠家有水膠版印刷使用潤版液的目的是什麽?

深圳印刷廠家選擇潤版液的條件是什麽?

深圳印刷廠家

有水膠版印刷使用潤版液的目的是

(1)在印版的空白部分形成排斥油墨的水膜,抗拒圖文上的油墨向空白部分擴張,防止臟版。

(2)增補印刷中被破壞的親水層,維持空白部分的親水性。

(3)降低印版錶面的溫度。

潤版液的主要作用就是潤濕印版的空白部分,並生成金屬氧化物或親水鹽層。在空白部分和油墨之間建立起一道屏障,使油墨不沾污印版的空白部分,為此,選擇潤版液必須是弱酸性的介質。
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