The lasers used in the packaging industry are used to:
Perforation of plastic film or laser microperforation in flexible packaging.
Cut plastic film to cut it into slices or various shapes.
Cut the plastic film in layers to form an easily tearable package.
Why laser drilling?
Laser drilling is making many small and well-defined holes in plastic film. The purpose of the perforated plastic film is as follows: The film will then be processed (converted to packaging):
Since the packaging gas can be controlled by adjusting the gas exchange in the packaging, the packaging performance is improved. The adjustment of packaging gas can be used to improve the quality and extend the shelf life of products. Another application is the ability to compress bulky packaging, making it occupy a smaller volume.
The laser is used for perforation due to its high precision and low installation cost. Since no tools or any contact with the material causing wear is required, costs can be reduced.
The picture shows a laser perforation with holes of different sizes. From the smallest hole diameter
of 0.076 mm to the largest hole diameter of 0.381 mm.
Easy to open package with laser?
Providing easy-to-open packaging is a competitive advantage. Using a laser, it is possible to achieve a precise processing depth in the packaging. The ability to accurately determine the depth of the notch makes it possible to cut through certain layers in the laminate without disturbing the second layer. Can be cut according to the respective packaging and use.
The picture shows the laser scoring used to create easy-open packaging. The package in question has a "zipper closure" where the package is easy to open and reseal.
Sample display of flexible packaging
Microporous vegetable pack. Laser drilling can improve product quality and make the product fresh-keeping period longer.
Sino-Galvo Tech. was founded in 2001, and our galvanometer scanners already have got CE, ROHS, FCC and REACH certifications, quality control in accordance with ISO9001 quality system standard, and we exported our products to many countries and regions.We also provide complete marking system including fiber laser marking machine, CO2 laser marking machine, production date batch number serial number laser marking machine and other laser equipment.
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