Common in-mold label film materials and their applications

The in-mold label materials are divided into four types according to the material characteristics: BOPP, PP+PE, PE, and paper. Due to the different processing characteristics of the materials, the application effects are also different.

1. BOPP biaxially stretched and deformed, with special coating on the surface, good printability. The disadvantage is that it is easy to deform on a large area of ​​the container. If the material of the barrel is PE and the label material in the mold is PP, because the shrinkage ratio of the two is different, the orange peel phenomenon will appear on the surface of the barrel after the application of the label.
2. PE is not stretched, the material surface needs corona treatment, poor printability, large deformation after hot stamping, because it is a PE material, no deformation occurs in the PE bottle body.

3.PP+PE uniaxial tensile deformation, the material surface needs corona treatment, printability is good, tension is stable. Since the material contains a PE component, a low-temperature hot stamping foil is required in the label hot stamping process. The biggest advantage is that the label has a smooth surface, no distortion, and good visual effect after application.

4. The paper is applied to low-grade packaging products, suitable for non-deformed or small deformation of the barrel. The commonly used materials are high-grade coated papers, and the printability of paper materials is better.