In packaging and printing, there are a lot of short prints ranging from a few thousand to 10,000 copies, of which a considerable number are live print jobs. In the deployment of spot color ink, the adjustment is more, resulting in waste; less adjustment, but also re-adjustment, not only time-consuming, it is difficult to ensure consistency before and after the transfer of ink color, resulting in color cast. Therefore, how to accurately control the amount of spot color ink is critical.
Determine the amount of ink transferred according to the number of prints
Based on my many years of experience, I have obtained empirical formulas for controlling the amount of ink transferred, which can help the ink adjuster accurately grasp the amount of ink transferred, and also provide a basis for management personnel to manage material costs.
1kg ink ≈1 order full version of the paper ink (positive positive off)
Involving papers with different openings and solid blocks of different areas can be converted according to the specific conditions of the prints according to the above formula. Note that when the ink is dispensed, the amount of ink transferred is 0.5 times more than that obtained by the conversion. Kg (such as printed version, 1kg of ink can print about 16 large-scale folios).
Remaining ink treatment of ink
For the residual ink treatment of short-run spot-printing spot color inks, many manufacturers are currently placing them for a long period of time, resulting in long-term crusting, dust accumulation, and even oxidative deterioration until they are scrapped. In fact, we may take the following two methods.
The first is when another batch of dark spot solid spot inks is blended, according to the differences in its components and its hue, it is blended with the original spot color residual ink, but the hue of the transferred ink cannot be changed.
The second is to mix long-term inks of various colors (commonly known as miscellaneous inks) according to the color rendering principle of the three primary colors of the ink color materials.
"Black" ink. If the darkness is not enough, black ink can be properly added. The "black" ink called out in this way can be used for book printing and general coated paper color printing. As we all know, in the four-color printing, the black version only plays a role of “delineating†and “emphasizing†the skeleton of the pattern in the dark, it will not affect the basic color of the pattern. However, because the “miscellaneous ink†has many inks, the spot will be spotted on the spot during the printing process, and the “black ink†blackness will be limited, which will cause the gray part of the field bar to appear gray, so it cannot be used to print the black field. Bar pattern.