油墨种类及特性对废纸可脱墨性的影响  

Effect of Ink Types and Properties on the Deinkability of Wastepaper

作　　者：傅英娟[1] 秦梦华[1] 胡惠仁[2] 

机构地区：[1]山东轻工业学院制浆造纸工程省级重点学科,山东济南250100 [2]天津科技大学化学工程与材料学院,天津300222

出　　处：《中国造纸学报》2005年第2期155-159,共5页Transactions of China Pulp and Paper

基　　金：国家自然科学基金(20376042);山东省自然科学基金(Y2002B08)资助

摘　　要：针对旧报纸、激光打印废纸及静电复印废纸油墨的不同,探讨了油墨种类及特性对废纸脱墨性能的影响。研究结果表明,旧报纸的油墨成膜性差,碎解时油墨容易剥离和分散,形成的油墨粒子粒径很小,容易重新沉积在纤维上,妨碍油墨的有效脱除;激光打印墨粉的成膜性好,熔融固化在纸张表面后形成较厚的成片油墨膜,碎浆后的油墨粒子呈较大的片状,脱除较困难;静电复印用显像剂在纸张表面固化后会形成连续成片的油墨膜,废纸碎浆后的油墨粒子为尺寸较大的扁平片状颗粒,但加强机械作用可将其分散得相对较小,通过浮选可有效除去。The effect of ink types such as newsprint oil-based inks, laser-print and xerographic toners on the deinkability of wastepaper was studied in this paper. Results showed that the differences in wastepaper types, ink compositions and properties could lead to the different deinkabilities. Compared with the oil-based ink of newsprint, the non-impact toners of laser-print paper and xerographic paper were more difficult to be removed. The ink sticked on the old newspaper was easily detached and dispersed by saponification, but some particles with small size were also readily produced, which could precipitate on the fiber of pulp again and was difficult to be removed. The toners sticked as a state of thick film in the old xerographic paper and old laser-print paper were shivered into particles of larger size, which made the removal of these toners particles more difficualt. As a result, the proper mechanical force was needed to decrease the size of these particles to mcet the requirement of flotation and washing.

关 键 词：旧报纸 激光打印废纸 静电复印废纸 油墨 可脱墨性 

分 类 号：TS744[轻工技术与工程—制浆造纸工程]