[China Glass Network] How to choose high temperature ink is also a key issue. Currently, a high temperature ink, UV mixed high temperature ink, has been added. This high temperature ink is very meaningful to the printing industry and can be used on printing presses. High temperature inks without replacing the blanket or the inking roller. If a press is set up for UV high temperature inks, it can also run normal high temperature inks. This is a great improvement for the printer because it is extremely flexible.
The great advantage of this UV high temperature ink system is the ability to perform on-line UV coating without lengthening the transfer process to complete the water-based coating. These improvements are mainly due to the additional conditions of UV curing, and the price will therefore increase, but the researchers predict that the final productivity will increase. They expect hybrid technology to continue to improve, improve product quality and reduce printing costs. Single-fluid high-temperature inks and hybrid high-temperature inks are two improvements that are currently being talked about, but some of the larger high-temperature ink companies are working on other products. Energy-curing high-temperature inks are an area that has developed rapidly in the high-temperature ink industry, especially electron beam (EB) technology, which will have a place in the future market.
In the printing process, no matter how it is printed, whether it is multi-color or monochrome printing, the primary problem encountered before printing is the color matching of the ink to adapt to the needs of the printed product; no matter how bright the ink, if it is operated Those who do not understand some ink properties and color matching knowledge, the mixed ink can not achieve a satisfactory appearance and the level of quality that should be. To this end, Xiaobian interviewed industry experts to sort out the problems that should be paid attention to in the printing of high-temperature ink colors for reference:
Looking forward, carefully observe the color samples, pay special attention to the substrate to be printed, and select the ink from the roughness and smoothness of the substrate. For example, high-temperature inks are printed on smooth, reflective aluminum sheets or cans. Selecting high-transparency inks will greatly enhance the metallic luster of high-temperature inks. When choosing the high-temperature inks required for color matching, avoid mixing too much high-temperature ink as much as possible, and try to use high-temperature inks that are close to the standard color and made of a single pigment. The more colors used in color matching, the farther away from the standard colors, the worse the brightness, and the higher the matte level of the mixed colors, it is impossible to modulate the primary colors by matching colors.
Second, pay special attention to high temperature ink tinting strength. If the selected high-temperature ink concentration is not high enough, the standard color density cannot be achieved no matter how it is blended. When white and black inks need to be added, special attention should be paid to the added components and the accuracy of weighing. In all high-temperature inks, the white ink has a strong hiding power, and adding too much will not only dilute the color, but also prevent the substrate from being reflected. When making a light-colored high-temperature ink, it should be judged from the degree of light transmission of the ink film to determine how much white ink or varnish (dilution agent) should be added for coloring. Solvent (dilution water) is not allowed to be used to dilute the color. Too much solvent addition will not only affect the printing performance, but also destroy the high temperature ink structure, causing the pigment to separate from the resin oil, causing precipitation or greatly reducing the gloss of the high temperature ink.
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