Water-based gold-silver ink and preparation method thereof

The invention belongs to the technical field of water-based ink, and particularly discloses water-based gold-silver ink and a preparation method thereof, wherein the water-based gold-silver ink is prepared from the following raw materials: water, ethanol, a coalescing agent, a pH stabilizer, a leveling agent, an antifoaming agent, organic pigment nano color paste, coated aluminum paste or/and coated cyan red bronze powder paste, and modified water-based acrylic resin liquid. The invention solves the problems of oxidation and precipitation in the production and use processes of the water-based gold and silver ink in the prior art. 本发明属于水性油墨技术领域，具体公开了一种水性金银墨及其制备方法，其中配制所需原料包括水、乙醇、成膜助剂、pH稳定剂、流平剂、消泡剂、有机颜料纳米色浆、包膜铝银浆或/和包膜青红铜金粉浆、改性水性丙烯酸树脂液。本发明解决了现有技术中存在的水性金银墨在生产和使用过程中存在的氧化、沉淀问题。