Corrugated carton flexo

(a) The flexo version can not only copy the field version but also copy the wire version. The hand-engraved rubber version can only be used to print lines, characters and the field.
Corrugated box printing has evolved from monochromatic and bicolor to multicolor screen printing. This is an inevitable rule. Flexible version can make solid version and can make cable version, in line with the trend of the times and corrugated paper printing requirements, and easy plate making, good quality (b) flexible plate material can be deformed deformation of corrugated medium is the thickness of the printing substrate error and the surface roughness is the worst A material, especially A, C tile. The flexographic plate can compensate for the thickness error and surface unevenness of the corrugated paper with its own compression deformation in the printing, thereby satisfying the pressure requirement, making the ink more uniform, improving the quality and reducing the reject rate. Therefore, the flexographic plates used in corrugated boxes are usually relatively thick, typically between 3 and 7 mm in thickness.
(3) Flexographic printing belongs to light pressure printing due to corrugations, uneven pressure during printing, high pressure at high corrugation, light pressure at low corrugation, and low corrugated paper contact at low plate, ink marks cannot be printed. Phenomenon, so the plain printing, gravure printing can not overcome the thickness error and the defect of corrugated unbalanced pressure, while the flexo printing is light pressure printing (kiss pressure), on the one hand the printing plate can evenly contact the corrugated paper, and the corrugated height is not There will be great pressure and serious traces.
(d) Flexographic printing can use water-based ink paper made of fibers intertwined, and its hydrophilicity is better than that of lipophilicity. Therefore, the plate needs only light contact with the corrugated cardboard, and the water-based ink will be almost completely absorbed by the corrugated cardboard. Lithography is a long way to pass ink, and the use of water-based ink can be used for the transmission of ink using a metal anilox roller in the flexographic printing.
Water-based inks are not contaminated, have low cost, are quick-drying, and are easy to operate, prompting people to use them.
Therefore, the flexible version of light pressure, water-based ink is an ideal combination of corrugated box printing.
(5) The flexo printer has a simple structure and is suitable for large corrugated cartons. The area is as large as 2 to 3 meters. If an ink transfer system for offset printing is used, the equipment is huge, manufacturing, operation and maintenance are difficult, and the flexo printing press has a simple structure. The four rollers are made into one color group, and the diameter of the rollers is enlarged appropriately, and the mechanical degree and stability can be improved, and the loading, adjustment and cleaning are very convenient. As the plates, anilox rollers, and water-based inks are all mature, corrugated cartons are developing rapidly with flexographic printing technology.
(6) It can be combined with other processes. The corrugated board of the production line is heavy. Each sheet is labor-intensive and can not meet the requirements of mass production, nor can it form a scale. Due to its simple structure, the flexo printer can be combined with other processes to form a production line, which greatly increases work efficiency and reduces labor intensity. Nowadays, most corrugated box printers are linked with indentation and grooving. The machine with good functions can be connected with indentation, slotting, die cutting, gluing, box making and counting. The machine can be directly transported on the truck. Go, the printing speed is very high.
The above six points indicate that the flexographic printing technology is the most ideal printing method for corrugated cartons, which not only suits the characteristics of corrugated cardboard, but also meets the product quality requirements, and can also form scale production. It is a high-quality, high-speed, and high-efficiency printing method.