破(po)壞了電(dian)(dian)(dian)(dian)化鋁(lv)(lv)(lv)表面(mian)(mian)光(guang)澤性，圖(tu)文(wen)輪廓發虛(xu)：需要覆膜(mo)加工(gong)的(de)燙(tang)金(jin)(jin)，因擔心金(jin)(jin)箔容易(yi)擦落而(er)先(xian)燙(tang)印再覆膜(mo)。這(zhe)易(yi)造(zao)(zao)成(cheng)(cheng)薄(bo)膜(mo)（尤其(qi)是亞光(guang)膜(mo)）會(hui)破(po)壞電(dian)(dian)(dian)(dian)化鋁(lv)(lv)(lv)的(de)表面(mian)(mian)光(guang)澤性，也不宜采用水(shui)溶性膠(jiao)水(shui)覆膜(mo)，否則會(hui)造(zao)(zao)成(cheng)(cheng)電(dian)(dian)(dian)(dian)化鋁(lv)(lv)(lv)表面(mian)(mian)發黑(hei)，同時極易(yi)造(zao)(zao)成(cheng)(cheng)金(jin)(jin)粉粘在圖(tu)文(wen)邊緣造(zao)(zao)成(cheng)(cheng)發虛(xu)現象。燙(tang)金(jin)(jin)后(hou)因壓力(li)作用而(er)凹陷，再加上膠(jiao)水(shui)不易(yi)滲透(tou)電(dian)(dian)(dian)(dian)化鋁(lv)(lv)(lv)表層，易(yi)造(zao)(zao)成(cheng)(cheng)燙(tang)金(jin)(jin)處0PP與(yu)紙張分離而(er)影(ying)響產品質(zhi)量。正(zheng)確的(de)工(gong)藝是應先(xian)覆膜(mo)再燙(tang)金(jin)(jin)，選擇與(yu)OPP相(xiang)匹配(pei)的(de)電(dian)(dian)(dian)(dian)化鋁(lv)(lv)(lv)。