燙金(jin)工藝(yi)是利用(yong)熱(re)壓(ya)轉(zhuan)移的原理，將電(dian)(dian)(dian)化鋁(lv)(lv)(lv)中的鋁(lv)(lv)(lv)層(ceng)(ceng)轉(zhuan)印到(dao)承印物(wu)表面(mian)以形成特殊的金(jin)屬效(xiao)果，因燙金(jin)使(shi)用(yong)的主(zhu)要(yao)材(cai)料(liao)(liao)是電(dian)(dian)(dian)化鋁(lv)(lv)(lv)箔，因此燙金(jin)也叫(jiao)電(dian)(dian)(dian)化鋁(lv)(lv)(lv)燙印。電(dian)(dian)(dian)化鋁(lv)(lv)(lv)箔通(tong)常由多(duo)層(ceng)(ceng)材(cai)料(liao)(liao)構(gou)成，基材(cai)常為(wei)P E，其次(ci)是分離涂(tu)(tu)(tu)層(ceng)(ceng)、顏色涂(tu)(tu)(tu)層(ceng)(ceng)、金(jin)屬涂(tu)(tu)(tu)層(ceng)(ceng)（鍍鋁(lv)(lv)(lv)）和膠水涂(tu)(tu)(tu)層(ceng)(ceng)。