破壞了電(dian)(dian)化(hua)(hua)鋁表(biao)面(mian)光澤(ze)性，圖文輪廓發虛(xu)：需(xu)要覆(fu)膜加(jia)(jia)工的燙金(jin)(jin)，因(yin)擔心金(jin)(jin)箔容易(yi)(yi)(yi)擦落而先(xian)燙印(yin)再(zai)覆(fu)膜。這易(yi)(yi)(yi)造(zao)成(cheng)(cheng)薄膜（尤其是亞光膜）會破壞電(dian)(dian)化(hua)(hua)鋁的表(biao)面(mian)光澤(ze)性，也(ye)不宜采(cai)用水溶性膠水覆(fu)膜，否則會造(zao)成(cheng)(cheng)電(dian)(dian)化(hua)(hua)鋁表(biao)面(mian)發黑，同時極易(yi)(yi)(yi)造(zao)成(cheng)(cheng)金(jin)(jin)粉(fen)粘在圖文邊(bian)緣造(zao)成(cheng)(cheng)發虛(xu)現象。燙金(jin)(jin)后因(yin)壓力作用而凹陷，再(zai)加(jia)(jia)上膠水不易(yi)(yi)(yi)滲透(tou)電(dian)(dian)化(hua)(hua)鋁表(biao)層，易(yi)(yi)(yi)造(zao)成(cheng)(cheng)燙金(jin)(jin)處0PP與紙張分離而影響產品質量(liang)。正確的工藝是應先(xian)覆(fu)膜再(zai)燙金(jin)(jin)，選(xuan)擇(ze)與OPP相匹配(pei)的電(dian)(dian)化(hua)(hua)鋁。