2. Drop the ink on the opening side of the sealing cover. You don't need too much ink at a time, because too much ink may not be absorbed and will pollute the used seals.
Put the seal in the shade, wait for about half an hour, and let the ink penetrate slowly. After observation, you can wipe it off with a slightly soft paper towel.
There are many kinds of inks, and each ink corresponds to a seal, so check carefully before printing ink. Add it after confirmation. The types of printing ink can be distinguished according to main components, solvents, printing media and sealing materials:
1. It can be divided into pigment printing ink and dye printing ink according to its main components. Paint inks can be divided into inorganic paint inks and organic inks. Because organic pigment is insoluble in water, it is usually the first choice for printing ink.
2. According to the solvent, it can be divided into oily ink, alcohol ink and water-based ink. Oily ink is mainly hydrocarbon solvent, so it has good weather resistance and is widely used.
3. According to the hot stamping medium, it can be divided into special ink for metal materials, special ink for ceramics, special ink for food, special ink for glass and special ink for textile materials.
4. According to materials, it can be divided into photosensitive printing, ordinary printing and atomic printing. This classification method is also the most familiar to the public and is generally used to distinguish printing oils.