The invention provides an ink composition including water, a colorant, a water-soluble organic solvent, a surfactant and a water-soluble silicate, the water-soluble silicate being comprised in an amount of from 0.0001% by mass to 0.5% by mass with respect to a total mass of the ink composition, and the water-soluble organic solvent including a water-soluble organic solvent having a value of solubility parameter (SP) of 27.5 or less in an amount of 40% by mass or more with respect to a total mass of the water-soluble organic solvent; an ink composition including a water-soluble alkali metal silicate and a pigment coated with a water-insoluble resin, the water-insoluble resin including a structural unit having an acidic group; and an ink composition including a water-soluble alkali metal silicate, self-dispersing polymer particles, and a pigment.
本发明提供了一种油墨组合物,包括
水、
着色剂、
水溶性有机溶剂、表面活性剂和
水溶性
硅酸盐,其中
水溶性
硅酸盐的含量为油墨组合物总质量的 0.0001% 至 0.5%,
水溶性有机溶剂包括溶解度参数 (
SP) 为 27.5 或以下的
水溶性有机溶剂,其用量占
水溶性有机溶剂总质量的 40% 或以上;一种油墨组合物,包括
水溶性碱
金属
硅酸盐和涂有
水不溶性
树脂的
颜料,
水不溶性
树脂包括具有酸性基团的结构单元;以及一种油墨组合物,包括
水溶性碱
金属
硅酸盐、自分散聚合物颗粒和
颜料。