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BuKePrinting >> knowledge >> 深圳印刷廠分析印刷的貼版工藝

深圳印刷廠分析印刷的貼版工藝

From:Buke printing factory of China深圳步殼印刷廠 | Author:China Bukeprinting factorybook0755 | Published time: 2020-08-04 | 822 Views | Share:
深圳印刷廠分析印刷的貼版工藝。貼版膠帶的作用是將感光樹脂柔性版貼在版滾筒上。。。

深圳印刷廠分析印刷的貼版工藝

貼版膠帶的作用是將感光樹脂柔性版貼在版滾筒上

(1)貼版雙面膠主要由中間基材層、兩面粘貼層、單面或雙面保護層紙組成。

①基材。
基材是決定貼版膠帶厚度及其性能的重要組成部分。基材按其成分主要可以分為薄膜類基材和泡棉類基材兩種類型。薄膜類基材彈性好,且均勻;泡棉類基材不僅在材質上不同,密度也不相同,這樣會影響膠帶的壓縮性和回復性等。


②粘接層。
粘接層的作用一方面是將保護層紙附著在基材錶面,另一方後緊密地黏附在印版滾筒與印版之間,粘接層可分為橡膠與丙烯酸兩種念領在保護紙撕開


③保護紙。
保護紙的作用是防止基材層被劃傷並起防塵的作用,同時便於解捲。一些柔性版固定膠帶具有雙面保護紙,第二層保護紙將保護膠帶的另一膠面及整體的質量水平。


(2)貼版操作。
在柔性版印刷機上,印版需要事先粘貼到印版滾筒錶面,然後再進行印刷。所以,印版在滾筒上的位置直接關繫到印刷的質量。為了保證貼版的精度,多採用版機


上版機的作用主要是保證每張印版在滾筒上的角度不歪斜,並保證統一套版中所有版在滾筒的橫向位置一致。

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