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畫冊印刷UV上光怎么選擇?

來源:http://www.703248.com/   發布時間:2021-06-03
畫冊印刷時候選用的上光機即涂布機,不同涂布方式時涂布材料有不同要求,主要是粘度要求。一般速度高粘度低,如高速畫冊印刷凹印、柔印機上光,印刷速度高約60一200m/min。若粘度高則光油轉移到承印物上少,并且不易流平,因此需粘度低于28s(涂四杯)。機速在20一50m/min的普通上光機,光油粘度不能低于35s,一般為35一80s。而用膠印畫冊印刷機、凸版機上光時,uv油粘度好在100一200s。
When printing picture books, the selection of glazing machine is coater. Different coating methods have different requirements for coating materials, mainly viscosity requirements. General high speed, low viscosity, such as high-speed picture printing gravure, Flexo machine glazing, printing speed is about 60-200m / min. If the viscosity is high, varnish transferred to the substrate less, and not easy to level, so the viscosity is less than 28s (coated four cups). When the machine speed is 20-50m / min, the viscosity of varnish can not be lower than 35S, generally 35-80s. The viscosity of UV oil is better than 100-200s when using offset printing press and relief machine.
濟南畫冊印刷
一般印刷畫冊的時候先燙金后上光效果好,因為金膜層背面有粘性與印刷的紙張附著牢固,正面性好與Uv光膜附著牢。如果畫冊印刷的工藝只能先上光后燙金,如柔版畫冊印刷機、不干膠機,應該上uv油后經電暈處理再燙金才行,否則易出現金膜脫落現象。
Generally, when printing picture books, the effect is good after gilding, because the back of the gold film is sticky and firmly adheres to the printed paper, the front is good and firmly adheres to the UV light film. If the album printing process can only be polished and then gilded, such as flexographic album printing machine, self-adhesive machine, should be on the UV oil after corona treatment and then gilded, otherwise easy to appear gold film off phenomenon.
若此現象不嚴重,一般無重力摩擦是不會脫落的。像說明書,疊放時上下頁摩擦力不大就沒問題。而書就不行,因為包裝疊放、運輸時,上下書相互摩擦會將金膜磨掉。另外包裝盒也不行,因為包裝盒碼放時,盒挨著盒相互摩擦。
If this phenomenon is not serious, it will not fall off without gravity friction. Like the manual, the friction between the upper and lower pages is not big, so it's OK. But books can't, because when packing is stacked and transported, the gold film will be worn off by the friction between the upper and lower books. In addition, the packing boxes are not good, because when the packing boxes are stacked, the boxes rub against each other.
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