Carton Preprinting Technology Introduction

The preprinted production equipment is a large-scale reel gravure printing machine. Carton preprinted paper gravure printing machine has the following features:

1. High printing speed and high overlay accuracy

Paper pre-print gravure printing speed of up to 150 meters / minute, overprint accuracy of less than 0.2 mm.

2, printing format large

The paper pre-print gravure printing machine can be printed from 1000 × 600 to 1700 × 1700 mm.

3, printing, oiling once completed

Paper pre-print gravure printing machine can achieve 4-12 color ink printing and varnish once completed. In order to reduce the cost of plate making, the oiling unit is driven by a separate motor and it is not necessary to replace the oiled plate roller when changing the printing plate roller.

4, can use environmentally friendly ink printing

The paper pre-print gravure printing machine is equipped with a double oven hot air drying system, which can fully dry and cure the ink, ensuring that the printed surface does not fade when the corrugated paper production line is rubbed against the hot plate. The automatic ink circulation system and the ink stick make the color of the batch print uniform and colorless.

5, high-speed automatic non-stop refueling

The paper pre-print gravure printing machine can realize the automatic rewinding of the material roll at a high speed without stopping the machine, which can greatly increase the yield and save the auxiliary working time.

6, automated control

Paper gravure printing machine adopts 8-motor vector frequency full closed loop tension control system, computer automatic color registration system, computer static image observation system, computer ink automatic circulation viscosity control system, computer automatic refueling control system, human-machine dialogue system and steam force. Hot temperature automatic control system. At the same time, the use of pneumatic shaftless plate, pneumatic scraper, pneumatic imprint, pneumatic shaftless material, two-cycle hot air drying, paper preheating, water cooling and other structures, so that the operation of the machine is very simple.

The preprinting production auxiliary equipment is a computer crosscutting and longitudinal of a tile paper production line.

In most of the previous corrugated paper production lines, the cross-cutting of the computer was only a fixed-length cross-cut, and the pre-printed production was to print a good pattern first, so it had to be added to the cross-cutting knife. The labeling cross-cutting control is installed, and its main control mechanism is to identify the cross-cut mark on the printed pattern of the corrugated cardboard by the photoelectric eye, and the time when the cut-off mark reaches the photoelectric eye is transmitted to the control computer, and the cross-cutting knife is controlled by the control computer. The moment of cutting, in order to achieve accurate cut off the corrugated cardboard at the border of the pattern. This point, the current domestic and foreign cross cutting machine manufacturers can easily add this feature. Cross-cutting accuracy can be controlled within 1mm.

The same principle applies to computer slitting and computer crosscutting.

In order to prevent the printing surface from rubbing the printed surface on the hot plate of the corrugated paper production line, some simple processing of the hot pole is required.

Preprinted gravure printing ink is water-based paper gravure ink, about 30 yuan a kilogram, the cost of ink is similar to offset printing, the ink meets national environmental protection requirements.

The preprinted plates are made of steel plated aluminum electrogravure, except that the paper gravure plate is deeper than the general plastic gravure plate when carving. The plate making cost is: advanced level edition 0.7 yuan/cm2, ordinary level edition and line version 0.35 yuan/cm2.

The preprinting method for producing cartons is still in the ascendant in China. With the joint efforts of machinery manufacturers, ink, paper, plate suppliers, and the vast majority of carton manufacturers, we have brought a new option to China's high-end carton production, which will increase the packaging grade of our country to one. New level.