How to minimize color difference in Beautiful Cosmetic Boxes printed packaging?

How to minimize color difference in Beautiful Cosmetic Boxes printed packaging?

The color adjusted by the ink factory often has errors with the standard color when it is used in the printing factory. This is a problem that is difficult to completely avoid. The only way to minimize the color difference is to minimize the color difference, what causes this problem, and how to control it. , How to improve the accuracy of color matching in ink factory?

1. Printing method: Most of the ink factories use small printing machines imported from the UK. The mesh of this machine is on a flat plate, and the printing is completed by moving the printing film with a round embossing roller. The machine in the printing factory is a circular printing machine. In the rounding method, the mesh is on the rotating circumferential roller. The number of lines and angles of these two meshes are quite different, which makes the same ink have a lot of difference between the two printing methods. Sometimes it is not only the problem of dark color and light color, but also Hue, lightness, etc. will bring about a big difference in the effect. Some small factories use a squeegee to match the sample, which is even worse. Using the proofing machine of the plate making factory to match the color, the effect will be much better than that of the imported small printing machine, but the price is similar. This kind of proofing machine can be made into the same version as the printing factory, and can design different levels and shades of printing according to the needs. The pattern, which makes the printing method basically the same as that of the printing house, and an important factor affecting the hue, the printing plate, is also the same as that of the printing house.

2. Version depth: Different printed parts have different version depths, and the ink factory's understanding or estimation of the version depth used in the printed parts also affects the accuracy of color matching. Obviously, if the ink factory uses a 45μm-deep version to print the color, but the customer's version is much smaller than 45μm, the printed color will become lighter, and vice versa, it will become darker. Some people think that the ink is adjusted according to the standard ink control provided by the user, and the plate depth can be ignored. In fact, this is a theoretical view, but it is not the case in practice. In theory, two identical inks (such as dividing a cup of ink into two parts) have the same hue regardless of the dark and light (other conditions are the same). However, in actual color matching, it is impossible to mix the exact same ink, so there is often such a phenomenon; sometimes the color of the lighter version is closer (which can meet customer requirements), but if the darker version is printed, the color It is much worse, so it is very important to master the depth of the plate. The depth of the plate of the customer must be used to print the color matching.

3. Viscosity: The printing viscosity of the color matching in the ink factory should be as consistent as possible with the printing viscosity when the printing factory prints this ink. The farther the two are, the greater the color difference will eventually be. The ink factory uses 22s for color matching, and the customer uses 35s. At this time, the color must be much darker, and vice versa. Some ink factories do not pay much attention to this problem, regardless of the viscosity used by the printing factory, they will always compare the customer's standard samples (including ink samples and printed samples) with a uniform viscosity, which will cause a large color difference.

4. Printing materials: The materials used by the ink factory for color matching are different from those of the printing factory (including other processes), which will also cause a large color difference. Some inks with a layer of white ink will be closer in color to the customer print, and some will be the opposite. Some ink customers do not change much after compounding, but some change greatly, such as some transparent colors. Therefore, when the ink factory is coloring, it is necessary to understand the customer's process conditions. The most basic ones include: whether to print a white ink base and what materials to compound. , whether to varnish. Theoretically speaking, the closer the printing conditions of the ink factory to color matching and the printing conditions of the printing factory using the ink, the higher the accuracy of the transferred ink. However, due to the limitations of conditions, there are still many differences between the two, such as: printing speed, color viewing environment, and printing pressure roller pressure are impossible to unify. The accuracy of toning in the ink factory.

https://www.minongpackaging.com/paper-box/cosmetic-box/beautiful-cosmetic-boxes.html