Low density polyethylene (LDPE) and flexible metalized films are widely used in confectionery and savory snack packaging. Soft packaging materials can be seen as the main carrier of modern product packaging. How to achieve perfect and clear marking on soft packaging film and aluminum foil is a problem that the marking industry needs to consider at the beginning of the development of the marking sc
XIONG Bingming, the French-Chinese artist and philosopher, once put that: "The core of Chinese culture is Chinese philosophy, while the essence of the core is calligraphy."