Saldatura di imballaggio in plastica

Traditionally, high-temperature packaging once used to be the most commonly method due to its low investment costs and easy-to-master proven technology. However, with the technological development, Plastic Ultrasonic Welding Machine has become more and more popular and is widely used in recent years, because of its advantages in quality over traditional heating methods.
The advantages of ultrasonic welding technology in food packaging applications are as follows:Ultrasonic Welding Machine, mainly composed of ultrasonic generator, energy-changing vibration system, pressurized system and workbench (lower electrode) ,etc, which including frequency automatic tracking system, amplitude control system and time control system. The basic principle of ultrasonic technology in packaging industry is to transfer vertical ultrasonic vibration from the ultrasonic horn directly to the contact surface of thermoplastics. With tens of thousands of high-frequency vibration per second, the sound resistance is increasing between two welding contact surface, which result in local high temperature; also because of the plastic thermal conductivity is relatively poor making heat hard to dissipate and gathered in the welding area, finally plastic melting happened. In this way, simultaneously under the continuous contact pressure, the contact surface of the welding parts is melted into one, so as to achieve the welding purpose. Materials are melted without expensive and easily contaminated aids such as adhesives, nails or adhesives, which bring many benefits to the packaging industry's quality assurance.
Today, packaging is becoming more and more important in food, beverage, retail and pharmaceutical industries. A good packaging not only protects the product from damaging, but also increases shelf life of the product. Meanwhile, a good packaging appearance will attract more attention to the consumers. Therefore, the quality of packaging is an important factor which affect consumers when they evaluate the value of merchandise.
The advantages of ultrasonic welding technology in food packaging applications are as follows:
Ultrasonic welding does not produce excess heat, which is especially important in food packaging. This means inside the package the temperature sensitive product ,such as food and beverages, will not affected by heat. This helps to better preserve food. Typical application such as food bags.
A solid joint area
The seams are as firm as the original material, which can better protect the product and seal well. Therefore, there is no need to worry about the leaking issues or saving issues. Typical applications such as welding milk carton and juice packaging nozzles.
Without warming up and maintain a constant temperature
20K Ultrasonic Plastic Welder does not produce excess heat, which is especially important in food packaging. This means inside the package the temperature sensitive product ,such as food and beverages, will not affected by heat. This helps to better preserve food. Typical application such as food bags.

parametro

Sealed welding can be performed through contamination (eg liquids, greases, powders, etc.) without affecting the welding effect. While, the high temperature packaging method is not competent for this kind of work. Typical applications such as squeezable tubes.
The combination of materials does not produce contaminants. Internal products will not been contaminated. In addition, processed food packaging products are environmentally friendly and renewable, and the process does not require the use of expensive and easily contaminated auxiliary products, which makes operating costs are very low and saves a lot of heat.
Non-standard welding equipment can be designed according to customer requirements through welding unit.