Nowadays, consumers are paying more and more attention to the shelf-life, and they should look at everything they buy, but many people do not know the shelf-life of eggs. As an important food, we eat eggs every day, and the shelf life is also very important. Almost everyone thinks that as long as the eggs are not bad, they are good, and often don’t pay much attention to the shelf life.
Experts have proved that the lower the temperature, the longer the shelf-life of eggs; the higher the temperature, the shorter the shelf-life, but the longest is not more than 40 days. After the expiration of the shelf life, the nutritional composition of eggs will change and lose their edible value. However, we can’t find anything just by looking at the shell, so we need to print its label on the eggs, such as production date, manufacturer’s trademark, bar code, two-dimensional code and other information.
The eggs are marked with ink jet code and laser jet code, but the ink jet code is easy to be worn and tampered with, and the contact processing is easy to crush the fragile eggs, and the eggs are arc-shaped, so manual jet code is not easy to master. Because ink is harmful to human body, it can’t be used to spray code.
Laser marking eggs expose deep substances through evaporation of surface substances, showing the barcode, two-dimensional code, production date, etc. to be etched, which can realize automatic coding, serial number, date, etc; Never fade after marking No contact processing, no damage to eggs; Non toxic, no environmental pollution; It can carry out ultra-fine and micro graphic marking, and the processing is fast; The flight marking system is equipped with a pipeline device, which is more efficient and faster.
