【Case Study of Partner's Bag Production】Successfully solved the customer's problem with 【Seal Reinforcement】!

We addressed the weaknesses of the laminate processing by reinforcing the sides with seal support.

The lamination process involves bonding OPP film and CPP film together. It is common to use OPP film on the outside for good ink adhesion and high moisture resistance, and CPP film on the inside for excellent heat sealability and abrasion resistance. The customer this time also requested OPCP laminated bags. However, we heard that when they previously had bags made, the seal strength was weak, and the sides of the bag's opening were very prone to tearing. The reason for this is that during the lamination process, slight differences in the tension applied by the machine when bonding the films and the way the adhesive adheres can create minor variations in adhesion. This can lead to the edges opening when the film is placed on the bag-making machine, resulting in issues with proper fusion of the sides. To address this problem, we utilized a "reinforcement seal." When applying the reinforcement seal, we took care to ensure that: - The temperature was not too high to prevent deformation of the bag. - The marks left by the reinforcement on the bag were minimized. To consider these two points, we made sure to manage the temperature during the process. The issue was successfully resolved, and the customer was satisfied!

Packaging Bags