Tetra Laval International has patented a method for creating sealed packages containing pourable products. This process involves forming a tube from packaging material, filling it with the product, and introducing sterile gas to maintain a gas cushion that separates the product column into upper and lower portions. GlobalData’s report on Tetra Laval International gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Tetra Laval International, Fiber-reinforced material joining techniques was a key innovation area identified from patents. Tetra Laval International's grant share as of July 2024 was 62%. Grant share is based on the ratio of number of grants to total number of patents.
Method for forming sealed packages with gas cushion
The patent US12065279B2 outlines a method and apparatus for creating sealed packages filled with pourable products. The method involves forming a tube from a packaging material web, filling it with the pourable product, and directing a sterile gas into the product column to create a gas cushion. This gas cushion serves to separate the product column into upper and lower portions, ensuring that the gas directly contacts both sections. The sterile gas pressure within the cushion is controlled, typically ranging from 5 kPa to 40 kPa above ambient pressure, to maintain the integrity of the product during packaging. Additional features include controlling an auxiliary sterile gas pressure to match that of the gas cushion and utilizing a delimiting element within the tube to enhance the packaging process.
The apparatus described in the patent includes a tube forming and sealing device, a filling device, and a gas feeding device that work in conjunction to create the sealed packages. The gas feeding device is designed to maintain the sterile gas pressure within the specified range, and it may include a gas feeding tube that extends into the product column. The apparatus also features a pressurizing device to control the auxiliary sterile gas pressure and an isolation chamber to separate the internal packaging environment from the external one, ensuring sterility during the tube formation and sealing process. Overall, the patent presents a comprehensive approach to efficiently packaging pourable products while maintaining their quality and safety.
To know more about GlobalData’s detailed insights on Tetra Laval International, buy the report here.
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