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離子成像印刷printing

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2020-08-24 | 407 Views | 🔊 Click to read aloud ❚❚ | Share:
離子成像印刷printing(電子束成像數字印刷)通過使電荷的定向流動建立潛影即由所印刷的圖文控制輸出的離子束或電子束直接在印版(成像)滾筒錶面形成潛影,然後著墨、印刷、定影、清洗,完成一個印刷周期。

離子成像印刷printing

離子成像印刷printing(電子束成像數字印刷)通過使電荷的定向流動建立潛影即由所印刷的圖文控制輸出的離子束或電子束直接在印版(成像)滾筒錶面形成潛,然後著墨、印刷、定影、清洗,完成一個印刷周期。

與靜電照相過程相似
,同之處在於靜電照相印刷是先對光敏鼓充電,然後對其進行曝光生成潛影;離子成像印刷的靜電圖文是由輸出的離子束或電子束信號直接形成的,省去了電荷在成像錶面均勻分佈的過程,其充電過程與成像過程結合進行


離子成像基本原理

成像時,首先由成像盒產生離子束(電子束)通過與成像盒相連的打印頭,將離子束(電子束排列成陣列,該離子束(電子束)陣列被引導到能暫時吸附負電荷的印版()滾筒(絕緣)錶面,當印版(成像)滾筒轉動時,由於離子束(電子束)開通和關閉,便在印版(成像)滾筒錶面形成潛影回個一形成潛影的印版(成像)滾筒繼續轉動,當轉動到呈色劑盒時,離子束(電子)潛影吸收帶正電的色粉粒子實現著墨。

當已經著墨的印版
(成像)滾筒轉動到壓印滾筒時,通過印版(成像)滾筒和壓印滾筒的壓印力,將色粉粒子轉移到紙上。

印刷的紙張繼續前進
,走到定影裝置處時,轉移到紙張上的色粉粒子經加熱定影。印刷後,印版(成像)滾筒錶面還會殘留一些未轉移到紙上的色粉粒子,需要清洗裝置(如刮刀)將其清除。另外,印版(成像)滾筒錶面還會有些剩餘的離子(電子),需要用清除輥消除個過程完成後可繼續進行下一步成像和轉印,也可實現可重復成像。

離子成像印刷printing
離子成像印刷printing


離子成像的特點

離子成像直接印刷技術的充電和成像過程是結合在一起的。離子成像是離子束(電子束)在圖像載體(電介質塗層)上直接生成電荷圖像,主要優點是成像滾筒的絕緣塗層錶面硬度較高,有利於改善成像系統工作的穩定性和可靠性,使用周期長。但也存在著許多問題,比如需要特定的定影裝置、受空氣的濕度影響較大等目前,離子束成像數字印刷已經從單色或專色印刷發展到彩色印刷,這一技術主要用於印刷發票、報告、手冊、表格、標簽和支票等。

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