印刷铜金粉的表面包覆改性研究  

Modification of Printing Bronze Powder by Covering with Surfactant

作　　者：冯拉俊[1] 徐大鹏[1] 雷阿利[1] 

机构地区：[1]西安理工大学材料科学与工程学院,陕西西安710048

出　　处：《中国造纸学报》2007年第4期84-87,共4页Transactions of China Pulp and Paper

摘　　要：针对我国铜金粉光泽度差的实际,通过表面包覆对铜金粉进行化学改性,采用湿法将月桂酸钠、油酸、十二烷基磺酸钠、硬脂酸、硬脂酸钠等8种单一表面改性剂按不同的比例包覆于铜金粉的表面。结果表明,经2%硬脂酸包覆的铜金粉的光泽度提高最多。选择对光泽度影响最大的硬脂酸等5种表面改性剂为影响因素,添加量为研究水平,以光泽度为考核目标,得到的最佳表面改性剂复配配方为:复配表面改性剂总用量占铜金粉质量的2%;硬脂酸钠占复配表面改性剂总量的15.38%,十二烷基磺酸钠占复配表面改性剂总量的23.08%,硬脂酸占复配表面改性剂总量的30.77%,油酸占复配表面改性剂总量的30.77%。这种配方可使市售的1000目80%Cu、20%Zn的铜金粉与调金油调制成满足凸、凹版印刷要求的金油墨,金油墨印刷后的光泽度达到84.8。Considering the fact of low gloss of bronze powder, the bronze powder is chemically modified by covering with eight kinds of single surfactants such as sodium laurate, oleic acid, sodium dodecyl sulfonate, stearic acid and sodium stearate in different proportions on the surface of bronze powder and the gloss of printed gold ink concocted with the covered bronze powder is tested. The results show that the gloss of the bronze powder covered by two percents stearic acid increases most significant. In order to upgrade the gloss of the gold ink, a orthegonal experiment is carried out by choosing five surfactants such as stearic acid as influencing factors and their addition amounts as researched levels. The optimal surface modification formula is obtained based on the experiment. The dosage of surfactant is two percent of the bronze powder, sodium stearte accounts for 15.38% of the total surfactant＇s weight, sodium dodecyl sulfonate accounts for 23.08% of the total surfactant＇s weight, stearic acid accounts for 30. 77% of the total surfactant and oleic acid accounts for 30. 77% of the total surfactant＇s weight. The prescription can concoct the commodity bronze powder containing eighty percent of copper and twenty percent of zinc and passed 1000 mesh to the gold ink with commodity ink to satisfy the request of relief printing and intaglio printing. The gloss of the printed gold ink reaches 84.8.

关 键 词：铜金粉 表面改性剂 光泽度 正交实验 金油墨 

分 类 号：TS802.3[轻工技术与工程]