PET碎片的洗滌

洗(xi)滌(di)(di)常釆(bian)用(yong)(yong)(yong)80-100℃熱水來(lai)軟化(hua)或溶解粘(zhan)(zhan)貼標簽和(he)底座(zuo)的EVA粘(zhan)(zhan)接劑(ji)或其(qi)他類型粘(zhan)(zhan)接劑(ji)，為(wei)防止脫落的粘(zhan)(zhan)接劑(ji)再粘(zhan)(zhan)附PET碎片，需在(zai)水中加(jia)入添(tian)加(jia)劑(ji)，如堿(jian)、乳化(hua)劑(ji)或其(qi)它(ta)專用(yong)(yong)(yong)化(hua)學劑(ji)。清(qing)(qing)洗(xi)液一般(ban)由工廠根據(ju)廢(fei)瓶來(lai)源和(he)粘(zhan)(zhan)接特性來(lai)確定其(qi)配方組成和(he)含(han)量，清(qing)(qing)洗(xi)液可濾(lv)去(qu)雜質(zhi)重新(xin)加(jia)熱後(hou)循環(huan)使用(yong)(yong)(yong)，洗(xi)滌(di)(di)可在(zai)裝有攪拌器的特別清(qing)(qing)選罐內進行，為(wei)保證清(qing)(qing)洗(xi)的效果，洗(xi)滌(di)(di)可釆(bian)用(yong)(yong)(yong)二級洗(xi)滌(di)(di)工藝