Printing Corrugated Packaging Box With paper tube Packaging cuts off color to a minimum?

Printing Corrugated Packaging Box With paper tube Packaging cuts off color to a minimum?

Ink factory good color, when used in the printing factory, often with the standard color error, this is a difficult to completely avoid the problem, can only be reduced to a minimum, what is the cause of this problem, and how to control, how to improve the accuracy of ink factory color?

1. Printing mode: most of the ink factories use small printing presses imported from Britain. The mesh of this machine is on the flat plate, and the printing is completed by the circular impression roller moving with the printing film. The number of lines and angles of the two kinds of mesh are very different, which makes the same ink in the two printing methods have a great difference, sometimes not only the problem of dark color, but also the color, brightness and so on will bring great difference. Some small factories use scraping sticks to match samples, which is even worse. With plate making factory proof press to color, the effect will be smaller than imported printing machine is much better, and the price is about the same, this kind of machines can be made into the same version of printing, and can according to need to design different levels, the depth of the printing design, this makes the basic way of printing and printing is the same, and an important factor affect the hue - plate, also with the same printing.

2. Plate depth: different printing parts have different plate depth, ink factory on the printing part of the plate depth understanding or estimation also affects the accuracy of color mixing. Obviously, if the ink factory color with 45μm deep version of printing, and the customer's version is much less than 45μm, the color will become lighter, otherwise, it will become darker. Some people think that is according to the standard ink provided by the user to adjust the ink, version depth can not be considered, in fact, this is a theoretical view, but in practice is not the case. In theory, two identical inks (such as dividing a cup of ink into two parts) will have the same hue regardless of the depth or lightness of the version (other things being the same). But in the actual color, it is impossible to mix the same ink, so there is often such a phenomenon; Sometimes the printing light plate color is closer (can meet customer requirements), but if the printing depth of the plate, the color is much worse, so it is very important to master the plate depth, the customer's plate depth, you must use the plate depth to print color.

3. Viscosity: the printing viscosity of the printing ink factory to adjust the color should be consistent with the printing viscosity of the printing ink. The farther the difference between the two is, the greater the color difference will eventually result. Ink factory color with 22s, and the customer with 35s, at this time the color must be much darker, otherwise much lighter. Some ink factories do not pay much attention to this problem, do not consider the use of the printing factory viscosity, all to the unified viscosity of the customer's standard sample (ink sample, printing sample), which causes a large color difference.

4 printing materials: ink factory on the color of the material and printing factory (including other processes) will also cause a large color difference. Some inks with a second layer of white ink will be closer to the color of the customer print, some will be the opposite. Some ink customers compound after little change, some have changed very much, such as some transparent color, so ink factory color, we must make clear the customer's process, the most basic including: whether printing white ink substrate, compound what material, whether glazing oil. In theory, the printing conditions of the ink factory and the printing factory use the ink printing conditions, the higher the accuracy of the ink. However, due to the limitations of the conditions, there are still many differences between the two, such as: printing speed, viewing the color environment, printing roller pressure is impossible to be unified, as long as the control of these four parts, surely can greatly improve the accuracy of the ink factory color.