Offset printing belongs to lithographic printing, which is by far the most widely used printing method because of its simple working principle and low cost. This printing method is fast, high printing clarity, accurate overprinting, and full of printing levels. It is the main printing method for beautiful packaging boxes and the first choice for creating brand packaging.
Offset printing of the main substrate is: paper and PVC. generally can be printed in the thickness of 0.5 mm or less.
Printing color can do four-color printing and spot color printing:
Four colors that is: cyan (C), magenta (M), yellow (Y), black (K) four inks, all colors can be mixed by these four inks, the final color graphics, this is the most common and most common way of printing, however, different substrates printed out of the effect is also different.
Spot color printing: spot color printing refers to the printing is dedicated to a special ink to print colors, than the four colors mixed out of the color more vivid, such as gold and silver.
Spot color has many colors, usually refer to the international version of the Pantone color card, spot color can not achieve gradient printing.