Printing problems and solutions of gold and silver

Printing problems and solutions of gold and silver ink

1. What should be paid attention to when printing other colors on the surface of gold ink or silver ink

answer: pay attention to the viscosity of the ink. As the hue of general gold and silver ink is not high, printing technology 7 Adopting the full digital, 3 closed-loop (force, deformation and displacement) control system based on Neuron Adaptive PID algorithm, the engineer will increase the ink discharge to improve its color. However, this will improve the viscosity of the ink and the drying time will be longer, which will affect the coverage of the next color. Therefore, some gold and silver inks with higher hue should be selected. Most enterprises in China have more foreign plastic extruders equipped with appropriate ink quantity for printing, and the printing speed should not be too fast at the same time

2. How to make black words printed on the surface of gold ink or silver ink full color (unchanged gray)

answer: black ink with high hue should be selected. If possible, it is better to print twice to make the gold and silver ink dry in time

3. How to prevent reflection (over bottom) when printing gold and silver ink

answer: This is related to the excessive amount of ink and the quality of paper. It should be printed on paper with appropriate ink quantity and high quality. In addition, many companies use a kind of gold and silver ink to print on different kinds of paper, which is incorrect. As different kinds of paper have their own printability, appropriate ink should be selected to match. For relevant information, please consult the supplier

4. In many cases, in order to catch up with the goods, the printing technician will add "quick drying agent" into the gold and silver ink to accelerate the drying. Is this feasible

answer: mixing inappropriate additives will affect its color performance and dryness. Generally, in the process of ink manufacturing, the desiccant is added after the pigment is mixed with the liquid medium, while some gold and silver inks mix the pigment and the liquid medium in the form of oxidation. Therefore, they have high compatibility and good drying performance

5. What effect will the pH of the bucket water have on the printing of gold silver ink

answer: if the pH of the bucket water is too acidic, that is, it is lower than 5, the print will be difficult to dry, and it should be between

1. What should be paid attention to when printing other colors on the surface of gold ink or silver ink

answer: pay attention to the viscosity of the ink. Because the hue of general gold and silver ink is not high, the printing technician will increase the ink discharge to improve its color. However, this will increase the viscosity of the ink and the drying time will be long, which will affect the coverage of the next color. Therefore, some gold and silver inks with high hue should be selected for printing with appropriate ink volume, and the printing speed should not be too fast

2. How to make black words printed on the surface of gold ink or silver ink full color (unchanged gray)

answer: black ink with high hue should be selected. If possible, it is better to print twice to make the gold and silver ink dry in time

3. How to prevent reflection (over bottom) when printing gold and silver ink

answer: This is related to the excessive amount of ink and the quality of paper. It should be printed on paper with appropriate ink quantity and high quality. In addition, many companies use a kind of gold and silver ink to print on different kinds of paper, which is incorrect. As different kinds of paper have their own printability, appropriate ink should be selected to match. For relevant information, please consult the supplier

4. In many cases, in order to catch up with the goods, the printing technician will add "quick drying agent" into the gold and silver ink to accelerate the drying. Is this feasible

answer: mixing inappropriate additives will affect its color performance and dryness. Generally, the manufacturer of ink removes the test piece fragments. In the process of manufacturing ink, the desiccant is added after the pigment is mixed with the liquid medium, while some gold and silver inks mix the pigment and the liquid medium in the form of oxidation. Therefore, they have high compatibility and good drying performance

5. What effect will the pH of the bucket water have on the printing of gold and silver ink

answer: if the pH of the bucket water is too acidic, that is, it is lower than 5, the print will be difficult to dry, and it should be between