Gold and silver ink printing problems and solutions

1. What should be noticed when printing other colors on the surface of gold ink or silver ink?

Answer: The viscosity of the ink should be noticed. Because the general hue of gold and silver ink is not high, the printing technician will increase the amount of ink to increase its color. However, doing so will increase the viscosity of the ink and the drying time will be longer, affecting the ability to cover the next color. Therefore, some gold and silver inks with a higher hue should be selected to print with the appropriate amount of ink, and the printing speed should not be too fast. .

2. How to make black characters printed on the surface of gold ink or silver ink (can not be grayed out)?

Answer: The black ink with higher hue should be used. If you can, it is better to divide it into two printings so that the gold and silver inks have time to dry.

3. How to prevent the reflection (bottom) situation when printing gold and silver ink?

A: This is related to the excessive amount of ink and the quality of the paper. It should be printed with appropriate ink and high quality paper. In addition, many companies use a gold and silver ink to print on different types of paper. This is incorrect. Since different types of paper have their own printability, appropriate inks should be used to match. The relevant information can be consulted with the supplier.

4, many times in order to catch the goods, printing technicians will join the "quick-drying agent" in gold and silver ink in order to speed up the drying, this is feasible?

A: Mixing inappropriate additives will affect its color performance and its dryness. In general ink manufacturers, in the process of manufacturing ink, the desiccant is added after the pigment and the liquid medium are mixed, and some gold and silver inks mix the pigment and the liquid medium together in an oxidized form. Therefore, the compatibility is relatively high. High, drying performance is also good.

5. What is the pH value of the bucket water when printing gold and silver ink?

Answer: If the pH of the bucket water is too high, ie less than 5, the prints will be difficult to dry and should be between 5-6.

Source: China Silk Screen Professional Network