For several years, screen printing technicians have been suggested to use high-tension screens. The advantages of a proper, tension-controllable screen are clearly stated, including improved positioning accuracy, faster printing speeds, and reduced blanket wear and tear. Another advantage is that the thickness of the ink layer is thinner, and the impression given by the print product is softer; if it passes through a low-tension screen, it will have to put too much pressure on the blanket cylinder to transfer a large amount of ink to the paper. At the time of printing, the feeling of giving people is extremely rough. You may want to deposit a uniform, uniform thickness layer of ink on the substrate when the ink passes through the screen. It is also desirable that when the opaque ink passes through the screen, only a thin layer is printed to cover the paper fibers. If a transparent or translucent ink is used, it is desirable that the ink layer behind the screen should meet the designer's intent and the density cannot be reduced. In general, a screen with insufficient tension or a screen with a loose screen may cause insufficient density. But on the other side of high-tension screens, there is very little discussion about their effect on color density. Regardless of the specific application, since the screen tension affects the thickness of the ink layer deposited on the substrate, it obviously affects the hue of each ink printed on the substrate in turn. For four-color inks and fluorescent inks, translucent inks such as reflective blue, and high-density inks such as completely opaque gold inks, the high-tension screens affect their hue is confirmed. Color density is the result of the light being reflected (and sometimes penetrating) onto the ink layer and reflected back into the viewer's eye. The density is not only affected by the applied technology, but also by the formation of the ink layer. For example, if light strikes a clear ink layer, more light will penetrate the ink and reflect back from the paper base, and if it hits a layer of opaque ink of the same thickness, it will return to the surface of the ink layer. less. The density of the pigments and fillers of opaque inks is high, which greatly reduces the light that penetrates the ink layer to the surface of the paper. Due to the difference in physical composition, the transparent ink is most affected by changes in screen tension. The density of the substance that forms the transparent ink is less, which means that most of the light can penetrate it. The thicker the ink layer of the clear ink, the less light is reflected, and the thicker and more saturated the color appears. In the case of transparent ink, a high-tension screen is used, and a smaller blanket pressure allows a thin layer of ink to be obtained, allowing a large amount of light to penetrate the ink layer to the surface of the paper. As a result, less light is returned from the surface of the ink, and more light is returned from the surface of the paper, so if the white paper fiber is printed with clear ink, the color of the print appears to be lighter than the desired color. If printed on black paper, the result is the opposite: the color of the ink looks darker, because black paper absorbs some light. Translucent inks are very similar to the various principles of transparent inks, but the density of the materials forming the translucent ink is relatively large, and the color intensity is also strengthened. This means that they prevent more light from reaching the surface of the paper. As the ink layers become thicker, the intensity of the color they express also increases accordingly. The more opaque ink provides the highest internal energy, so the color of the ink printed on the paper is very similar to the desired color hue. Their opaque features are made up of their pigments, resins, and fillers, but dot features and printing methods are only determined by the ink's opacity. In other words, even the most opaque ink layer can be obtained by printing with a lower tension screen and low-level printing technology. The opacity of an ink is determined by its composition and the method used to print it on paper. For each type of ink—transparent, translucent, or opaque—a standard must be established to define which colors are acceptable and which are not acceptable. The method of transferring ink to paper plays a huge role in meeting various capabilities of the printing standard. Higher tension screens allow for the use of minimal blanket cylinder pressure, embossing the surface of the paper, leaving a uniform, thin layer of ink. The lower tension screen forces the pressure of the blanket cylinder to increase. The consequence is not only that the blanket cylinder and the mesh opening are severely worn, but also that the ink is pressed into the interior of the sheet. Once the ink is pressed into the interior of the paper, there will be more paper fibers protruding out of the ink layer, and the effect of the ink layer on the color printed on the paper will increase. Is there any way to remedy this? Printing can be repeated to achieve high opacity and ideal color. However, the impression given by the printed products will be rough. Only printing through screens with controllable tension can prevent time-consuming and costly reprinting of the same screen and prevent rough prints. If a completely opaque ink is used, printing can be done with 504 lines/inch, which gives the desired color and opacity. In fact, in order to hide the color of the paper surface, the opaque ink must be printed with a specific ink layer thickness. The continuous development of plastisol products is changing the composition of opaque inks, making it easier to achieve the desired opacity and color characteristics. However, even if a new composition of ink is produced, it must be admitted that the thickness of the ink layer needs to be controlled by a higher screen tension. This requires improving the process of making the screen, using mechanical or pneumatic stretching equipment, tensioning the frame, and/or other fixing tools to tighten the screen securely. The effective color control is the ability to get the desired ink layer thickness through normal printing processes. Understanding the characteristics of the various inks used is an important part of the printing process.