The advantage of rotary offset in label printing

[guangzhou printing company] in label printing, reciprocating half - and full-wheel offset printing equipment is a new type of printing, mostly used in combination printing, but also suitable for single printing in short (long) plate processing. In the Labelexpo Asia 2007 held in Shanghai, the TR2 label offset press of iwasaki company, which is the only offset offset reciprocating paper transfer offset press in the exhibition, attracted the strong attention of visitors. Some domestic machinery manufacturers also began to develop the non-drying label drum offset press, such as ruian donghai printing machinery co., LTD. Production of ZX - 320 batch PS version of label printing machine has achieved good market effect, the transit day jersey printing machinery co., LTD., shanxi taihang machinery manufacturing co., LTD. In 2009 south CHINA printing exhibition on display at the rotary offset printing equipment, northerners Fuji printing machinery co., LTD will display the latest in CHINA PRINT 2009 rotary offset printing machine.

In the current label printing printing methods, a variety of printing methods such as offset printing, gravure printing, flexo printing and screen printing are applied. Rotary offset printing is a new entry into the label printing market, it provides a new printing method for label printing processors and their customers. Unlike flexo, it offers higher quality.

Offset printing and flexo printing advantages

Offset printing and flexographic printing can also be used for label production, but in a different way, although the use of flexographic printing in narrow-band printers is more common, offset printing has its own advantages and disadvantages.

Offsctdruckereien ink transfer system is more complex, by a number of rollers composed of a longer ink road. Offset printing plate is positive, and flexo is negative. Offsctdruckereien is a widely used printing technique that transfers inked images onto a blanket and then onto the surface of a printed material.

The two printing methods use different inks. Dave coast, sales manager at LabelOneConnect, explains: "flexo printing USES an ink consistency similar to milk. The printing plate is made of nylon or plastic and the ink on the plate is transferred directly to the substrate or paper substrate. Offsctdruckereien inks are mushy, heavy, coloring power. The ink is transferred to the plate, and then transferred to the substrate by blanket, ink transfer system is more complex.

Jose m. Soler, managing director of the Spanish company Rotatek, points to other differences. The maximum printing accuracy of flexo printing is 170 to 180dpi, while the rotary offset printing can reach 200 to 300dpi, and the printing method is simpler and more economical than flexo printing, he said. JesHilfling, general manager of Etipol, Denmark, points out that offset printing must be UV dried and flexo can be either hot air or UV dried.

Offset printing and flexo printing ink flow is also different. Hilfling explains: "the flow of ink in flexo printing is controlled by the mesh volume of the anilox roller, while offset printing is controlled by the ink bucket key." Hilfling points out the similarities between flexo and rotary offset. "The pre-press preparation time is the same," he said. Both have high printing speeds of about 100 to 200 meters per minute." Soler also believes that the two printing speed is not very different, both can reach about 1000 feet per minute.