超声处理对激光打印废纸脱墨效果的影响  

Influence of Ultrasonic Pretreatment on the Laser Printed Paper Deinking

作　　者：张中山[1] 杨桂花[1] 裴丽华[1] 刘小宁[1] 陈嘉川[1] 

机构地区：[1]齐鲁工业大学制浆造纸科学与技术教育部重点实验室,山东济南250353

出　　处：《纸和造纸》2016年第4期8-11,共4页Paper and Paper Making

基　　金：国家自然科学基金(31270627;31370580;31470602);山东省重大科技专项(2014ZZCX09101;2015ZDZX09002);泰山学者工程专项经费的资助

摘　　要：超声波在液体中能引起周期性的压缩与膨胀,有利于油墨与纤维的分离。实验探讨超声波预处理对激光打印废纸脱墨效果的影响。结果显示:未经超声波预处理的化学法脱墨废纸浆有效残余油墨浓度为81.13 mg·kg-1,白度为78.8%ISO;经过超声化学法协同酶法处理后的废纸浆有效残余油墨浓度为53.13 mg·kg-1,白度为85.8%ISO。与未经过超声波处理的废纸浆相比,油墨脱除率提高了33.68%,白度提高了6%ISO,而废纸浆的抗张指数、撕裂指数、耐破指数等物理强度性能无明显变化,废纸浆的光学和物理性能指标可以满足中低档箱纸板的质量要求。Ultrasonic can cause cyclical compression and expansion in liquid, it is conducive to the separation of the ink and fibers. The influence of ultrasonic pretreatment experiments on laser print deinking was discussed, The results showed that with the optimal pretreatment conditions, pulp effective residual ink concentration is 81.13 mg·kg^-1, its whiteness is 78.8%ISO. Compared with pulp without pretreated, deinking rate, whiteness of the de-inking pulp pretreated were improved respectively 33.68% and 6%. While its tensile index, burst index and tear index of the de-inking pulp were also good, its optical and physical properties can also meet the requirements of middle and low quality containerboard.

关 键 词：废纸 超声波 酶处理 

分 类 号：TS749.7[轻工技术与工程—制浆造纸工程]