Vacuum packaging technology originated in the 1940s. Since the successful application of polyester and polyethylene plastic films in commodity packaging in 1950, vacuum packaging machines have developed rapidly, and their technological development trends are mainly reflected in high productivity, automation, single machine multi-function, composition of production lines, and adoption of related new technologies These 5 aspects.
1. High productivity. The productivity of the vacuum packaging machine has grown from several pieces to ten pieces per minute, and the productivity of the thermoforming-filling-sealing machine can reach more than 500 pieces / minute.
2. Automation. The automatic vacuum packaging machine has the functions of vacuuming, sealing, printing and cooling at one time. It is mainly used for the packaging of food such as tea, peanuts, shrimps, corn, etc.
