Which is the best solution, small character coders or laser coders? This depends on restrictions imposed by local or export requirements, the combination of egg colors running on the equipment, the egg wetness, and the number of characters that need to be printed.
While the internal structure of a CIJ printer varies slightly depending on the model, the basic structural elements are constant and can be divided into two categories: the core (sometimes called the ink module) and the printhead.
The CO2 laser source was filled CO2 gas in the tube, the discharge tube is filled with CO2, helium, nitrogen, hydrogen and xenon, mainly CO2, supplemented by others. Because there are many kinds of gases in the working chamber of the CO2 laser, which can be actually understood as a kind of consumable. The characteristics of CO2 laser are rich spectral lines. There are dozens of spectral lines in the vicinity of 10 μ M. the output speed of light has high optical quality, good coherence, narrow line width and stable operation. With high power and high energy conversion efficiency, the energy conversion efficiency can reach 30-40%, which is also higher than the general gas laser. The service life of CO2 laser is generally 20000 hours.
Similar to food, canned and bottled beverages must display batch numbers, barcodes and expiration dates to comply with retailer requirements and regulations. Continuous inkjet printers are typically used to apply these marks because CIJ printheads can achieve a print distance of 1-3 inches to accommodate the curved surface of the package.
Whatever Fiber, CO2 or UV Laser marking machine, their laser will hurt skins. Sometimes the skin is damaged to some extent, which is caused by photochemical reaction. The cause of skin injury may be photochemical reaction or thermal effect. In general, the severity of the injury depends on the length of the exposure. The damage of CO2 laser to epidermis is due to the heat conduction from cuticle to deeper. The intense irradiance at the fiber tip is used to vaporize or peel the tissue, so it is very dangerous for the skin near the focus.
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