燙(tang)金(jin)工藝是(shi)(shi)利用(yong)熱(re)壓轉移的(de)原(yuan)理，將電(dian)(dian)(dian)化(hua)鋁(lv)中的(de)鋁(lv)層(ceng)(ceng)(ceng)轉印(yin)到承印(yin)物表面以形(xing)成(cheng)特殊的(de)金(jin)屬效果(guo)，因(yin)燙(tang)金(jin)使用(yong)的(de)主要材(cai)料是(shi)(shi)電(dian)(dian)(dian)化(hua)鋁(lv)箔，因(yin)此燙(tang)金(jin)也(ye)叫電(dian)(dian)(dian)化(hua)鋁(lv)燙(tang)印(yin)。電(dian)(dian)(dian)化(hua)鋁(lv)箔通(tong)常(chang)由多層(ceng)(ceng)(ceng)材(cai)料構(gou)成(cheng)，基材(cai)常(chang)為(wei)P E，其次是(shi)(shi)分(fen)離(li)涂(tu)層(ceng)(ceng)(ceng)、顏(yan)色涂(tu)層(ceng)(ceng)(ceng)、金(jin)屬涂(tu)層(ceng)(ceng)(ceng)（鍍鋁(lv)）和膠水涂(tu)層(ceng)(ceng)(ceng)。