Commercial rotary digital presses used by most Chinese companies are transformed from sheetfed presses. With the development of new technologies and the use of new equipment, many staff members are not fully aware of commercial rotary digital printing machines due to the long-term operation of traditional sheetfed presses, especially the cooling and drying of commercial rotary digital printing. Dry equipment is not taken seriously, so it is easy to cause problems in practical production activities. Cooling and drying equipment in commercial rotary digital presses is a major component. Since commercial prints are generally printed with thermoset inks, they must be equipped with a drying system on high speed multicolor printing equipment to handle the problem of solidification of the ink on the print. The hot air drying method is usually adopted, and the high-temperature hot air flow is used to take away the solvent evaporated on the surface of the printed matter at the fastest speed, so that the printed matter of the digital printing machine can be solidified in the shortest time. The cooling system in the commercial rotary digital press works with the drying system. After drying, the printed matter is prone to the problem of shortening deformation and paper brittleness, which will directly affect the post-press processing. The cooling system in the commercial digital printing press can control the appearance temperature of the printed matter, and ensure the dimensional stability, gloss and post-processing characteristics of the printed matter. It is worth noting that because the printing speed of the commercial rotary digital printing machine is very fast, in addition to cooling the dried paper during the printing work, the ink on the ink roller must be cooled. This problem is even more pronounced because the ink is heated, especially in high-speed web presses, because the ink is cut, crushed, and chopped by the process of ink leveling, especially in high-speed web presses. The increase in temperature during the working process of the commercial rotary digital printing machine will inevitably affect the fluidity of the ink, causing the damage of the ink and water balance and affecting the printing quality. Article source address: http:// Slip Sheet,Slip Sheet For Shipping,Slip Sheet For Transport,Slip Sheet For Pallet DONGGUAN YEE HUP TRADING CO,.LTD , https://www.yeehupacks.com
The role of cooling and drying devices in commercial rotary digital presses