破(po)壞(huai)了電(dian)(dian)化(hua)(hua)鋁(lv)表面(mian)光澤(ze)性(xing)，圖文輪廓發(fa)虛：需要覆(fu)膜加(jia)工的燙(tang)金(jin)(jin)(jin)(jin)，因擔心金(jin)(jin)(jin)(jin)箔容易擦落(luo)而(er)先燙(tang)印再(zai)覆(fu)膜。這易造(zao)(zao)成(cheng)(cheng)(cheng)薄膜（尤(you)其是亞光膜）會破(po)壞(huai)電(dian)(dian)化(hua)(hua)鋁(lv)的表面(mian)光澤(ze)性(xing)，也不宜采用(yong)水(shui)溶性(xing)膠水(shui)覆(fu)膜，否則會造(zao)(zao)成(cheng)(cheng)(cheng)電(dian)(dian)化(hua)(hua)鋁(lv)表面(mian)發(fa)黑，同(tong)時極易造(zao)(zao)成(cheng)(cheng)(cheng)金(jin)(jin)(jin)(jin)粉(fen)粘在圖文邊緣(yuan)造(zao)(zao)成(cheng)(cheng)(cheng)發(fa)虛現象(xiang)。燙(tang)金(jin)(jin)(jin)(jin)后(hou)因壓力作用(yong)而(er)凹陷，再(zai)加(jia)上膠水(shui)不易滲透電(dian)(dian)化(hua)(hua)鋁(lv)表層，易造(zao)(zao)成(cheng)(cheng)(cheng)燙(tang)金(jin)(jin)(jin)(jin)處0PP與紙(zhi)張分(fen)離而(er)影(ying)響產品質量。正確的工藝(yi)是應先覆(fu)膜再(zai)燙(tang)金(jin)(jin)(jin)(jin)，選(xuan)擇(ze)與OPP相匹配的電(dian)(dian)化(hua)(hua)鋁(lv)。