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BuKe factory >> knowledge >> 印刷廠家告訴你什麽是濕覆膜式冷燙印工藝

印刷廠家告訴你什麽是濕覆膜式冷燙印工藝

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2020-11-21 | 598 Views | 🔊 Click to read aloud ❚❚ ▶ | Share:
​濕覆膜式冷燙印工藝​是在塗布了UV膠黏劑之後,先燙印然後再對UV膠黏劑進行固化,主要工藝步驟如下

印刷廠家告訴你什麽是濕覆膜式冷燙印工藝


濕覆膜式冷燙印工藝是在塗布了UV膠黏劑之後,先燙印然後再對UV膠黏劑進行固化,主要工藝步驟如下


①在捲筒承印材料上印刷自由基型UV膠黏劑。


②在承印材料上復合冷燙印箔。


③對自由基型UNV膠黏劑進行固化,由於膠黏劑此時夾在冷燙印箔和承印材料之間,UV光線必須要透過燙印箔才能到達膠黏劑層。


④將燙印箔從承印材料上剝離,並在承印材料上形成燙印圖文。


需要說明的是:其一,濕覆膜式冷燙印工藝用自由基型UV膠黏劑替代傳統的陽離子型UV膠黏劑;其二,UV膠黏劑的初黏力要強,固化後不能再有黏性;其三,燙印箔的鍍鋁層應有一定的透光性,保證UV光線能夠透過並引發UV膠黏劑的固化反應。


濕覆膜式冷燙印工藝能夠在印刷機上連線燙印金屬箔或全息箔,其應用範圍也越來越廣。目前所採用的膠黏劑也可以是非UV類的,利用普通膠印印版印刷到承印材料上,然後黏性油墨將金屬箔從載體上轉印下來。在同一臺印刷機上,還可以在金屬箔上疊印油墨,金屬箔與油墨疊印後形成有顏色的金屬光澤。


印刷廠家告訴你什麽是濕覆膜式冷燙印工藝
印刷廠家告訴你什麽是濕覆膜式冷燙印工藝

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