For cigarette packs based on color blocks, lines or medium tones, flexo printing is very promising. First of all, the narrow-format flexo printing machines introduced in China are mostly "6 + 1" color groups, and the last color group is used for glazing, so that the advantages of flexo printing in spot color printing can be exerted; second, the current domestic flexibility The plate-making factory has figured out a set of effective flexographic plate-making process methods, which can basically meet the requirements of tone-level printing. In addition, flexographic printing is often equipped with online indentation, bronzing, die-cutting and other stations, with high production efficiency. At the same time, flexographic printing uses water-based ink, which is conducive to the realization of environmental protection goals. In the process of formulating the cigarette pack flexo printing process, the plate-making process should be determined according to specific process conditions, such as: paper smoothness, anilox roller parameters, ink gray balance data, etc. In the printing process, due to the water-based ink Viscosity and dryness are affected by the value, so the PH value of the ink must be strictly controlled; considering that the flexographic printing dot expansion is more serious than offset printing, as with offset printing, the printing pressure must be adjusted to a minimum. During the printing of cigarette packs using the flexo process, the following points should be noted. (1) Because the ink is transferred through the anilox roller, and the amount of ink required for solid and tone gradation printing is different, the solid and screen lines of the same color should be plated separately. (2) Since the angle of the anilox roller is mostly 60 °, the screen angle of the gradation version should avoid 60. To prevent moire. (3) Considering that the ink drying method is volatile drying, in order to improve the contrast, it is recommended to use KCMY Printing color sequence, and then printing spot colors. (4) The anilox roller, which is the "heart" of flexographic printing, should be configured to meet the needs of cigarette pack printing. Hot reading: Editor in charge: Liu Yang Dining Chair Modern,Dining Chair Velvet,Dining Chair Modern Elegant,Dining Chair Wood BOSA FURNITURE CO.,LTD. , https://www.bosafurniture.com
