非接触印刷废纸的碱法热预处理脱墨研究  

Alkaline Thermal Pretreatment Deinking of Non-Impact Printed Wastepaper

作　　者：李新生[1] 陈中豪[1] 陈壁波[1] 罗清[2] 

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 [2]陕西科技大学造纸工程学院,陕西咸阳712081

出　　处：《中国造纸》2005年第4期17-19,共3页China Pulp & Paper

摘　　要：介绍了非接触印刷废纸的概况及其在二次纤维回收利用中的地位,研究了非接触印刷废纸的碱法热预处理脱墨工艺,通过测定脱墨浆的白度、尘埃度及可脱墨因子,对其进行了综合评价。正交实验结果表明,当脱墨剂用量0.4%,用碱量2.0%,热预处理时间80min,热预处理浓度15%,碎浆时间40min时,非接触印刷废纸浆脱墨后的白度能够达到85.4%ISO,尘埃度9.2mm2/m2,可脱墨因子达到99.61%。The alkaline thermal pretreatment deinking of non-impact printed wastepaper was studied in this paper, it was evaluated by determining the brightness, dirt and deinkability factor of the deinked pulp. The results indicated that deinking agent charge is 0.4%, alkali charge 2.0%, the time of thermal pretreatment is 80 min, pulp consistency is 15% and pulping time is 40 min, the brightness of deinked pulp can reach 85.4%ISO, and the dirt is 9.2mm2·m(-2),the deinkability factor is 99.61%.

关 键 词：脱墨浆 非接触印刷废纸 二次纤维 热预处理 

分 类 号：TS744[轻工技术与工程—制浆造纸工程]