With the continuous enhancement of people's spiritual needs, in the consumer industry, besides product quality, packaging has also become an important factor affecting consumers' purchase decisions. Packaging convenience, novelty, safety and so on will affect the sales of goods. Laser perforation technology can provide better solutions for packaging and greatly enhance the added value of flexible packaging.
What is laser perforation?
Laser drilling is a part of the laser cutting process. Laser drilling refers to a laser processing process in which the laser is heated as a high intensity heat source after the laser is focused, so that the material in the laser action zone melts or vaporizes and then evaporates, and the holes are formed.
The use of laser technology (polyester), aluminum foil, paper and other soft packaging materials for cutting, marking, drilling and layer cutting, its processing method is the use of laser beam, in the design of solid line, dotted line, wavy line, easy to tear line cut into a thin line only a few microns deep. Using the advantages of laser focusing, the focus can be as small as submicron magnitude, which has a great advantage in the micromachining of materials. When the laser energy is low, the high energy density can be obtained, and the material can be processed efficiently.
Advantages of laser drilling
Compared with the traditional packaging method, this process has a considerable advantage. Whereas previously manufacturers had to find the most suitable packaging available on the market, with laser perforation, they can customize the packaging to ensure optimal product preservation.
High precision. As with all digital processes, laser drilling uses data provided by software to accurately determine the accuracy of the drilling. You can adjust the parameters according to the actual situation of the bag, and then adjust the size of the hole.
High efficiency. Laser punching is a fully automated process that is faster than regular punches and can be integrated into existing production processes to achieve full automation and improve manufacturing quality throughout the entire production line.
Reduce wastage. The special selectivity of laser to different film materials makes it possible to cut one film layer without affecting other layers, and minimize the possibility of accidental damage to plastic film materials. At the same time, unlike mechanical processing, laser processing, no contact and wear occur, which ensures the reliability of the process in the process of high-speed machining.
Be more flexible. Laser technology can be used to perform different processes in the same production cycle. The same machine can perform multiple processes, such as punching holes in plastic film and marking product traceability information.
It is more convenient. The packing bag of mechanical processing production, can't control easy tear to mouth, a lot of people to tear apart when packing can lead to internal leakage, and laser punching technology can avoid this problem, use laser cutting technology is easy tear line, does not destroy the packaging function, and can make the tear can tear along easy tear line, and basic invisible notch, tear consumer packing more convenient.
Suitable for material
Most plastic films can be perforated using laser technology. Most thermoplastic polymers absorb CO2 laser radiation well and are therefore ideal for this type of processing, with polyethylene and polypropylene particularly suitable for laser drilling on these materials for precise and clean results.
