| abstract |
PROBLEM TO BE SOLVED: To provide an ink jet ink capable of forming an image with high safety and high productivity on an eggshell surface. SOLUTION: An edible dye that forms a water-insoluble salt with water, a humectant, and eggshell calcium ions and adheres to the eggshell surface, and a water-soluble that forms a three-dimensional gel structure on the eggshell surface by eggshell calcium ions Inkjet ink for printing on eggshells containing resin. |