破(po)壞(huai)了電(dian)(dian)化(hua)鋁(lv)(lv)表(biao)(biao)面(mian)(mian)光(guang)澤(ze)性(xing)，圖文(wen)輪廓發(fa)虛：需要(yao)覆膜(mo)(mo)加(jia)工(gong)的燙(tang)(tang)金，因擔心金箔容易擦(ca)落而先燙(tang)(tang)印(yin)再覆膜(mo)(mo)。這易造(zao)(zao)成(cheng)薄(bo)膜(mo)(mo)（尤其是亞光(guang)膜(mo)(mo)）會破(po)壞(huai)電(dian)(dian)化(hua)鋁(lv)(lv)的表(biao)(biao)面(mian)(mian)光(guang)澤(ze)性(xing)，也不(bu)宜(yi)采用(yong)水溶性(xing)膠水覆膜(mo)(mo)，否則(ze)會造(zao)(zao)成(cheng)電(dian)(dian)化(hua)鋁(lv)(lv)表(biao)(biao)面(mian)(mian)發(fa)黑，同時(shi)極易造(zao)(zao)成(cheng)金粉粘在圖文(wen)邊緣(yuan)造(zao)(zao)成(cheng)發(fa)虛現象。燙(tang)(tang)金后因壓力作用(yong)而凹陷(xian)，再加(jia)上膠水不(bu)易滲透電(dian)(dian)化(hua)鋁(lv)(lv)表(biao)(biao)層，易造(zao)(zao)成(cheng)燙(tang)(tang)金處0PP與紙張分離而影響產(chan)品質(zhi)量。正確的工(gong)藝是應(ying)先覆膜(mo)(mo)再燙(tang)(tang)金，選擇(ze)與OPP相匹配(pei)的電(dian)(dian)化(hua)鋁(lv)(lv)。