The general characteristics of self-adhesive material label printing are: bright colors, large contrast, and obvious shelf effect when pasted to the goods. Ordinary color prints emphasize clear layers, strong three-dimensional sense, complete tones, and rich colors. So there is a special printing method for label printing.
Label printing machines are all more than four colors, up to twelve colors printing. The layout design of the label is generally a combination of spot color printing and spot color printing and three-color printing. Therefore, high-grade labels are printed many times, and the text of the field or title is printed in spot colors, while the image of the person is printed in a four-color mesh tone. Even if the color is the same, the solid and mesh cables are printed twice to achieve the best visual effect.
Ordinary color prints are mostly printed in four colors on offset printing machines. The printing presses used are single, two-color and four-color offset presses. If the label is printed with offset printing, the solid color blocks, lines and text on the label are printed together with the gradation of the layout. Due to the limitation of offset printing characteristics, the ink color and pressure of each part are consistent, so it is difficult to reflect the characteristics of label printing on the finished label. Generally, the spot color on the offset printing machine is made of flat screen printing, while the label machine printing color.
It is printed by spot color ink, and the effect of the two is different.
The layout of label printing is designed according to the characteristics of the label, and the label printing machine is also designed for label printing, which is a special equipment. Although the ordinary offset printing machine can print exquisite prints, it has certain limitations for high-grade label printing, so at present, the high-grade self-adhesive labels are printed by more than six color label machines.