无墨喷水可重复打印纸工业化制备

摘要

"无墨喷水打印"技术因其绿色环保的特点引起了广泛关注,推进无墨喷水可重复打印纸的产业化具有重要的意义.本文以具有水致变色性质的吲哚并[2,1-b]噁唑啉染料分子(TM)为例,选定聚对苯二甲酸乙二醇酯(PET)代替滤纸基材,通过筛选合适的表面活性剂、调整染料用量以及涂层厚度,探究并得到了一种无墨喷水可重复打印纸的工业化制备工艺.结果表明,利用优化后的制备工艺得到的无墨喷水可重复打印纸具有良好的可重复书写性能,并通过小量生产测试验证该制备工艺可以应用于实际工业生产.%"Water-jet printing" has attracted wide attention owing to its green process and environmental friendliness.Therefore, it is significant for industrial preparation of water-jet rewritable paper.In this work, taking a hydrochromic dye indole [2,1-b] oxazolidine( TM) for example, the industrial preparation process of water-jet rewritable paper based on polyethylene terephthalate ( PET ) instead of filter paper was explored in detail and successfully obtained via screening of surfactant, adjusting the amount of dye, and modulating coating thickness.The paper prepared via the optimized process exhibits great rewritable performance. Furthermore, successful small-scale production of this paper indicates that the optimized process can be widely applied in industrial production.