燙金(jin)工(gong)藝是利用熱(re)壓轉(zhuan)移(yi)的原理，將電(dian)(dian)化(hua)(hua)(hua)鋁(lv)(lv)中(zhong)的鋁(lv)(lv)層(ceng)(ceng)轉(zhuan)印(yin)(yin)(yin)到承印(yin)(yin)(yin)物表面(mian)以形(xing)成特殊的金(jin)屬效果，因(yin)燙金(jin)使用的主(zhu)要材(cai)料是電(dian)(dian)化(hua)(hua)(hua)鋁(lv)(lv)箔(bo)，因(yin)此燙金(jin)也叫電(dian)(dian)化(hua)(hua)(hua)鋁(lv)(lv)燙印(yin)(yin)(yin)。電(dian)(dian)化(hua)(hua)(hua)鋁(lv)(lv)箔(bo)通常(chang)由(you)多層(ceng)(ceng)材(cai)料構成，基(ji)材(cai)常(chang)為P E，其次是分離涂(tu)(tu)層(ceng)(ceng)、顏色涂(tu)(tu)層(ceng)(ceng)、金(jin)屬涂(tu)(tu)層(ceng)(ceng)（鍍鋁(lv)(lv)）和膠(jiao)水涂(tu)(tu)層(ceng)(ceng)。