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步殼印刷​紙箱的柔印

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2021-08-12 | 636 Views | Share:
柔性版印刷技術使用具有彈性的柔性版材,如感光樹脂版材,雕刻橡膠版等進行印刷柔印紙箱工藝也分為柔版直接印刷和預印刷兩種方式。

                   步殼印刷紙箱的柔印


柔性版印刷技術使用具有彈性的柔性版材,如感光樹脂版材,雕刻橡膠版等進行印刷柔印紙箱工藝也分為柔版直接印刷和預印刷兩種方式。


直接印刷是使用水性油墨直接在瓦楞紙板上印刷,目在我國的紙箱印柔性版印刷具有幅面大、色彩多、品質高的優點。寬幅柔印機的最大幅寬可達2.5-2.8m用得最多。


衛星式柔版印刷機組可同時印刷6色。柔印採用不同網線印刷表現圖案,可使網點膩,色彩鮮艷,一致性強。另外,柔印方式是輕壓印刷,對瓦愣紙板的強度破壞性小。


水性油墨印刷,價格較低且符合環保要求。該方式可聯動生產,印刷、開槽、壓痕等工序一次即可完成,效率較高。


但由於柔性版材受壓易變形,油墨傳遞及印刷壓力較難控制,圖案的高光部分網點易丟失或增大嚴重,在斯調部分,同點大約在8%就會並級為實地狀態,


階調還原範圍有限僅約為8%-85%,因此很難用柔印工藝呈現豐富的層次和色彩。這使得目前大多數柔版直印刷的紙箱印刷質量處在中低檔狀態,印刷速度還有待提高接印要版印刷技術的進步,


水墨質量的提高會逐步改觀柔印速度問題。如在高速運轉的印刷機上,可較好地保證輸墨系統的有效供之每測磨系統的採用能充分保證較少的油墨表層面積接觸網紋輥,


菱形,六角形等存邊網穴能夠提供更好的油高質量的紙箱柔版印刷是各相關環節相互調整和配合的過程,如印刷設備、製版參數水墨等各個環節都很重要


步殼印刷紙箱的柔印


步殼印刷紙箱的柔印

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