In IML production, trapped air can cause blistering, poor adhesion, and surface defects, leading to visible quality issues and rejected products. These problems often come from insufficient venting, unstable molding conditions, or incompatible film performance.
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Are trapped air bubbles ruining your in-mold labeled containers?
2026-07-01
Trapped air bubbles in IML occur when air cannot escape properly during injection molding, resulting in blistering, weak adhesion, and visible surface defects. The main causes are poor mold venting, unstable processing parameters, or inconsistent film quality. These issues can reduce product appearance and increase rejection rates. By improving vent design, optimizing molding conditions, and using stable IML film, manufacturers can effectively eliminate air trapping and achieve smooth, high-quality container surfaces.
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