燙(tang)(tang)金(jin)(jin)(jin)工藝是(shi)利(li)用熱壓轉移(yi)的原(yuan)理，將(jiang)電(dian)(dian)(dian)化(hua)(hua)(hua)鋁(lv)(lv)中的鋁(lv)(lv)層(ceng)(ceng)(ceng)轉印(yin)到承印(yin)物表面以(yi)形成(cheng)特殊的金(jin)(jin)(jin)屬(shu)效果(guo)，因燙(tang)(tang)金(jin)(jin)(jin)使用的主要材料是(shi)電(dian)(dian)(dian)化(hua)(hua)(hua)鋁(lv)(lv)箔(bo)(bo)，因此(ci)燙(tang)(tang)金(jin)(jin)(jin)也叫電(dian)(dian)(dian)化(hua)(hua)(hua)鋁(lv)(lv)燙(tang)(tang)印(yin)。電(dian)(dian)(dian)化(hua)(hua)(hua)鋁(lv)(lv)箔(bo)(bo)通(tong)常由多(duo)層(ceng)(ceng)(ceng)材料構成(cheng)，基材常為P E，其次(ci)是(shi)分離涂(tu)(tu)層(ceng)(ceng)(ceng)、顏色涂(tu)(tu)層(ceng)(ceng)(ceng)、金(jin)(jin)(jin)屬(shu)涂(tu)(tu)層(ceng)(ceng)(ceng)（鍍鋁(lv)(lv)）和膠水涂(tu)(tu)層(ceng)(ceng)(ceng)。