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[Chemical Knowledge]：How to install sealing film

Read： 605 Time：18months ago Source：Transform the World with Simplicity

Sealing film is a very important auxiliary material in the modern packaging industry. Its function is to cover a layer of transparent film on different packaging containers to protect the quality and shelf life of food, medicine, cosmetics and other products. However, how to properly install a parafilm can be a confusing task for someone just starting to use it. In this article, we will discuss the installation steps and some precautions of the sealing film to help readers better understand how to operate it correctly.

First of all, let us understand the types and uses of the sealing film. Sealing films are generally classified into two types: hot sealing films and cold sealing films. The heat sealing film needs to be heated to fuse it with the surface of the container to form a close fit and prevent the product from being affected by the external environment. The cold sealing film does not need to be heated, only needs to be manually covered on the container, and the container can be sealed by its own adhesive force. During the installation process, it is necessary to select the corresponding installation method according to different types of sealing films.

Next, let's explain in detail the installation steps of the sealing film. First of all, prepare the container that needs to be sealed, which can be plastic bags, glass bottles, stainless steel cans and other containers of different materials. Then, select the sealing machine suitable for the container and sealing film type, and adjust its parameters. For the hot sealing machine, it is necessary to set the appropriate temperature and pressure; for the cold sealing machine, it is necessary to check the adhesive performance of the sealing machine and whether the adhesive performance of the sealing film meets the requirements.

Next, we can begin to operate the sealing film. For the heat sealing film, first lay the sealing film laterally on the outer ring of the sealing machine, then place the container on the sealing film and press it down to make it fit tightly with the sealing film. After determining the position, start the sealing machine. In a short period of time, the heat sealing film will be heated to fuse it with the surface of the container to form a perfect sealing effect.

For cold sealing films, the operation is relatively simple. First of all, the contents of the container are packed, and then the cold sealing film is laid on the inside of the container mouth, and the positional relationship between the sealing film and the container is sorted out. Then use your fingers to press from the top of the container, along the edge of the container to the bottom, so that the sealing film is completely attached to the container, so as to achieve the sealing effect.

, it should be noted that during the entire process of installing the sealing film, it is necessary to ensure that the surface of the sealing film and the container is clean and dry to ensure the firmness of the sealing. In addition, sealing films of different types and specifications need to be reasonably selected and matched to avoid problems such as incomplete sealing and easy opening due to the mismatch between the sealing film and the container.

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