Stretch Film Packaging Solutions for Seafood Manufacturers

Stretch film packaging for seafood (seafood packaging forming film) adopts processes such as blowing co-extrusion and cast co-extrusion to combine and process raw materials such as PA, EVOH, PEPP to produce packaging film products, which can effectively block oxygen and water vapor and extend the shelf life of the product.

The working principle is to heat and soften the skin packaging film and cover it on the product and the bottom plate, and at the same time enable vacuum suction under the bottom plate to form the skin film according to the shape of the product and stick it on the bottom plate (high barrier skin box), which can achieve the purpose of oxygen isolation, moisture-proof, mildew-proof, and corrosion-proof, and extend the shelf life and freshness period.

There are various forms of packaging containers, such as box-shaped, disc-shaped, cup-shaped, round, square, etc. The size of the packaging container can also be customized according to needs. For larger containers, 1-2 pieces can be formed at a time, while for small containers, several pieces, more than a dozen pieces, or even more can be formed at a time, depending on the actual size of the packaging.

The principle of thermoforming vacuum stretch film packaging is to match the fully automatic stretch film vacuum packaging machine, using a continuous stepping method, with the lower roll film forming and the upper roll film sealing. The packaging process is completed automatically by the machine, and the food filling can be done manually or mechanically as needed. The lower roll film is pulled and stepped at a fixed step, and is formed by air pressure, vacuum or die in the preheating area and heating area. After filling the material in the filling area, it enters the heat sealing area. In the heat sealing area, the upper roll film is covered on the forming box after passing through the guide roller. According to the packaging needs, it can be vacuumed or filled with protective gas, and then hot-pressed and sealed. After the heat sealing is completed, the production batch and production date data can be printed, and it can also be printed in color. After cross-cutting and longitudinal cutting, the finished package is formed. The cut edge material can be collected and cleaned by the suction barrel or the hoisting device.

Especially suitable for basa fish, tilapia, salmon, tuna packaging