水性油墨粒子沉积及其抑制作用的研究  

STUDY ON PREVENTION OF WATER-BASED INKS REDEPOSITION

作　　者：王瑞[1] 陈荣煜[1] 张学铭[1] 赵强[1] 

机构地区：[1]北京林业大学材料科学与技术学院,北京100083

出　　处：《陕西科技大学学报（自然科学版）》2009年第4期43-47,共5页Journal of Shaanxi University of Science & Technology

基　　金：国家大学生创新性实验计划"水性油墨粒子再沉积作用的机理研究"(GLS07025);制浆造纸工程国家重点实验室开放基金(200720)

摘　　要：通过采用模拟体系对水性油墨粒子沉积的抑制作用进行了研究.结果表明,模拟体系中加入无机钙离子和铝离子均可有效抑制油墨粒子的沉积,而无机钙离子效果更佳.无机钙离子对于实际水性油墨废纸最优的浮选脱墨条件为:CaCl2用量2%,碎浆温度50℃,碎浆时间4 min,碎浆浆浓8%,浮选浆浓1%,浮选时间10 min,浮选温度50℃,活性剂用量0.3%.通过采用扫描电镜对油墨粒子沉积的机理进行了初步研究.The prevention of the water-based ink redeposition problem during repulping was established with a model system consisting of virgin TMP pulp and a commercial water-based ink. The results showed that the brightness of deinked pulp increased significantly with the addition of calcium ions and aluminium ions,and calcium ions had a much greater effect than aluminium ions. The optimum deinking conditions of real newspaper printed with waterbased inks in addition of calcium ions was shown as calcium charge 2 %, pulping temperature 50 ℃ ,pulping time 4 min, pulping consistency 8%, flotation consistency 1%, flotation time 10 min, flotation temperature 50 ℃, surfactant charge 0. 3%. The redeposition mechanism was briefly studied with scanning electron microscope （SEM）.

关 键 词：水性油墨 浮选脱墨 油墨沉积 

分 类 号：TS749.7[轻工技术与工程—制浆造纸工程] TQ427.6[化学工程]