真空喷铝纸转移涂层性能研究  

Transfer Coating Properties of Vacuum Transfer Metalized Paper

作　　者：陈洋 陈然 CHEN Yang;CHEN Ran(SVG(Yancheng)Optronics Co.,Ltd.,Jiangsu Yancheng 224100,China;Shanghai Zijiang MetallizationEnvironmental Protection Material Co.,Ltd.,Shanghai 201102,China)

机构地区：[1]苏大维格(盐城)光电科技有限公司,江苏盐城224100 [2]上海紫江喷铝环保材料有限公司,上海201102

出　　处：《包装工程》2022年第13期94-99,共6页Packaging Engineering

摘　　要：目的为了解决真空喷铝转移纸胶印掉墨问题,同时研究掉墨现象的原因机理。方法通过实验对纸张表面转移涂层的油墨结合牢度、表面张力、涂层结合牢度、涂层耐温性和耐溶剂性进行测试,同时对比涂层红外谱图和X射线光电子能谱(XPS)。结果真空喷铝转移纸放置12个月后会出现表面张力降低到真空镀铝纸行业标准(BB/T 0054—2010)以下,放置18个月后会出现大面积掉墨现象,但涂层牢度并未出现变化。6—15个月涂层表面硅原子数分数由0增至0.6%,18个月的涂层表面硅原子数分数剧增为3.5%;同时表面涂层的耐温性、耐溶剂性未随着时间出现明显变化。结论纸张中的硅含量以及喷铝纸加工过程中水性背涂里面的硅含量逐步向纸张正面的转移涂层表面转移,造成硅物质富集,形成有机硅低分子物质的弱界面层,降低了涂层的表面张力,并使其印刷适性变差。研究所得结论对真空喷铝转移纸产业化生产具有指导意义。The work aims to solve the problem of ink loss during offset printing of vacuum transfer metalized paper and study the cause and mechanism of the ink loss phenomenon.The ink binding fastness,surface tension,coating binding fastness,temperature resistance and solvent resistance of the transfer metalized paper coating were tested by experiment.Infrared spectrum and X-ray photoelectron spectroscopy(XPS)of the coating were compared.The results showed that the surface tension of the vacuum transfer metalized paper decreased to below the industry standard of environmental vacuum metalized paper(BB/T 0054-2010)after it was placed after 12 months,and the ink dropped in a large area after placed for 18 months,but the coating fastness did not change.The mass fraction of silicon on the coating surface increased from 0 to 0.6%at 6-15 months,and increased to 3.5%at 18 months.Meanwhile,the solvent resistance and temperature resistance of the surface coating did not change significantly with time.The silicon content in the paper and the silicon content in the water-based back coating during the processing of the vacuum transfer metalized paper will gradually transfer to the sur-face of the transfer coating on the front of the paper.The silicon substance is enriched to form a weak interface layer of organosilicon low molecular substances,which reduces the surface tension of the coating and deteriorates its printability.The conclusion has a guiding significance for the industrial production of the vacuum transfer metalized paper.

关 键 词：真空喷铝转移纸 胶印 转移涂层 时间 

分 类 号：TS895[轻工技术与工程]