The food packaging industry has strict requirements in terms of functional characteristics: extending the shelf life of food, increasing the attractiveness of food appearance, easy to unpack, improving food safety, etc. At present, the commonly used sealing technologies include high-frequency sealing, hot plate sealing, infrared radiation sealing, and ultrasonic sealing. The ultrasonic sealing technology has attracted more and more attention due to its good sealing quality, high efficiency, cleanliness, and other advantages.
After years of development, the development of ultrasonic technology has also made it possible to use ultrasonic waves to cut products. Ultrasonic food cutting is currently widely used in many food industries.
Ultrasonic welding beverage packaging has good sealing performance, and the joint firmness is close to that of raw materials, so there is no need to worry about leakage and storage. Ultrasonic welding will not generate excess heat. For temperature-sensitive liquid food, the interior of the packaging will not be affected.
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Ultrasonic welding seams are air-tight and water-tight and can even process contaminated areas such as grease, liquids, fibers, or powders. In addition, ultrasonic welding can satisfy very thin packaging materials, which is beneficial both economically and ecologically for the production of food packaging.