水性油墨新闻纸洗涤脱墨工艺探讨  

The Study of Washing Deinking Technology for ONP Printed With Water-Based Ink

作　　者：张学铭[1] 何北海[1] 李军荣[1] 赵光磊[1] 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广州510640

出　　处：《造纸科学与技术》2006年第5期18-21,共4页Paper Science & Technology

摘　　要：本文对水性油墨废纸洗涤脱墨工艺的影响因素进行了研究。结果表明,水性油墨废纸洗涤脱墨的最优条件为:浆浓8%,碎浆温度50℃,碎浆时间10m in,pH=7,脱墨剂脂肪醇聚氧乙烯(7)醚(AEO-7)用量0.6%。在此条件下,洗涤法脱墨可以提高脱墨浆白度6.5%ISO,使残余油墨量下降了950.2mg/kg。AEO-7的洗涤脱墨效果优于六偏磷酸钠和十二烷基磺酸钠。The parameters of washing deinking for old newspaper printed with water-based ink were studied in this paper. The results showed that the optimum washing deinking conditions were as follows： pulp consistency 8% , operating temperature 50℃, operating time 10min, pH = 7, alcohol ethoxylate with an ethoxylation number of 7 （AEO -7） was used as a deinking agent and the dosage was 0.6%. The results showed that at the optimum conditions the brightness of deinked pulp improved 6.5 % ISO and the effective residual ink concentration reduced 950.2 mg/kg, and the results also showed that AEO -7 achieved the better effects than sodium hexametaphosphate and sodium dodecylsulfonate.

关 键 词：洗涤法脱墨 水性油墨 废新闻纸 表面活性剂 

分 类 号：TS749.7[轻工技术与工程—制浆造纸工程]