Color-changing ink is a special ink that changes color through a reactive substance. It can be used in the anti-counterfeiting industry, toy industry, gift industry, clothing industry, handicraft industry, etc.
The optical color-changing effect of optically variable ink is produced by the optically variable pigments in the ink. The main components of optically variable pigments are fragments of optically color-changing films with specific spectral properties. Optical color-changing films are designed based on the light interference principle of multi-layer films. They are made of a variety of materials with different refractive indexes and use high vacuum coating technology to accurately control the thickness, ratio and composition of each film layer according to specific film structure design requirements. Sequentially deposited on the same carrier.
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Drying method: (self-drying, baking drying, UV curing), and can be diluted with the corresponding diluent when used. (Water-based ink can also be customized and diluted with water) It is recommended to use white or light white for the printing background, which can increase the difference in color changes.
Screen version selection: The mesh size is selected between 150 mesh and 200 mesh.
Storage: Thermochromic ink should be stored in a sealed, dry, dark place, away from direct sunlight. Toxicity and safety: The thermochromic ink is slightly irritating to the skin and respiratory tract. It should be sealed during transportation and the environment during printing operations should be well ventilated. After the ink is completely dry, it will not have any odor or irritation and meets the safety toy and food packaging specifications.
Baidu Encyclopedia-Color Changing Ink