Where are the structural characteristics of the flexographic printing machine reflected?

In the stage of rapid economic development in China, the contradiction between economic growth, environmental pollution and cost inflation has become increasingly acute, but this contradiction is not contradictory. In the highly polluting printing industry, green printing is very popular. In the process of continuous improvement of many printing equipment, how can flexographic printing machines have advantages in cost savings and pollution reduction?

The plate rollers of flexographic printing machines are usually in direct contact with the printing material. Therefore, the printing plate roller needs to be scraped off the ink on the roller surface with a scraper before the ink outlet tank comes into contact with the printing material, and then the ink in the concave holes is transferred to the substrate through the pressure of the pressure roller and the capillary action of the printing material. Most high-speed flexo printing machines are drum printing machines and are used for continuous printing.

During the preparation process, the rolls are heated in hot water and then placed in a chloric acid solution to peel off the chromium and rust layers. Then it is rinsed, the iron roller is nickel plated, the iron roller is plated with stable copper, the aluminum roller is galvanized, and it arrives on the same day.

Many equipment improvements can reduce contamination. Using vegetable oil instead of gasoline as a solvent, using water-based ink technology will reduce environmental pollution, and using less polluting solvent materials to replace existing solvents is also a better method.

What are the structural characteristics of a flexographic printing machine? As an important printing machinery, flexographic printing machine has good applications in many industries. What are the structural characteristics of a flexo printing machine?

1. The structure of sleeve printing cylinder and anilox roller makes the upper and lower printing plates simple, flexible, convenient for storage, high system precision, and has the function of "quick plate change".

2. The discharge receiving unit adopts a two-position rotating frame with double arms of the separation tower and has a high-speed non-stop roller changing function.

3. The drying box adopts direct air inlet type, which has small air loss and high efficiency. The oven with a new structure can realize the secondary utilization of heat energy and is controlled by an intelligent constant temperature system.

4. Adopt a closed double-squeegee chamber ink delivery system to reduce environmental pollution, facilitate quick cleaning, and reduce ink replacement time and downtime. The scraper device is pneumatically pressurized and the ink chamber is closed. It has rotation and quick disassembly functions, which is convenient for cleaning and replacing blades and ink sticks.

5. The wall panels adopt an integral structure and are not easily deformed.

6. The central embossing cylinder adopts a double-wall structure and a constant temperature water circulation system to keep the outer surface temperature of the embossing cylinder constant and prevent thermal expansion of the embossing cylinder; it adopts a mechanical braking device for reliable operation.

In the actual printing process, the factors that affect the printing effect of high-speed flexo printing machines are as follows:

1. When proofing, of course, use a laser typesetting machine to proof, and the individual accuracy is between 0.01-0.1mm. However, some errors may occur due to the different films used.

2. Due to problems in papermaking technology, the brightness, thickness and texture of the same paper produced by different paper mills will be different.

3. After printing is completed, the next step is to cut the printed matter with a paper cutter. When cutting the finished product, due to the error of the tool itself, the error after cutting the finished product also exists objectively.

4. The high-speed flexo printing machine is faulty. One is overprint accuracy and the other is ink color.