How to seal the edges of aluminum foil vacuum packaging bags more securely?

During the production or product packaging of vacuum aluminum foil bags, there may be wrinkling of the edges or situations where the edges cannot be sealed directly. This not only increases production costs for manufacturing enterprises, but also increases product costs for packaging procurement enterprises. It may even directly affect the display image of the product at the end and reduce the brand image. So, how can aluminum foil vacuum packaging bags be sealed more securely? The technical personnel of Jinde Packaging provided the reasons and solutions.

Generally speaking, the wrinkling of edge banding is mainly caused by the following reasons:

1. Poor performance of raw materials, wrinkling after high-temperature sealing and ironing;
2. During the production process, glue and ink have poor temperature resistance;
3. Excessive residual solvents in the adhesive and ink used for packaging can cause bubbles and wrinkles during the sealing and ironing process due to the accumulation and evaporation of these solvents;
4. The parallelism of the bag making machine's heat sealing knife, the softness, hardness, and flatness of the silicone do not meet the requirements for heat sealing, and there are foreign objects on the heat sealing knife.

The main reasons why vacuum aluminum foil bags cannot be sealed are:

1. Quality issues with heat sealing materials, such as excessively high starting temperature or unstable heat sealing performance.
2. The temperature and pressure of the heat sealing knife are too low.

The above information is compiled by Jinde Packaging. Jinde Packaging is a manufacturer specializing in vacuum packaging bags, with more than 10 years of experience in vacuum packaging bag production and excellent equipment. It provides spot wholesale and small order customization services. Hotline: 15902743510