In the molding process of composite paper, the selection of blister paper is crucial, which directly affects the quality and performance of the final product.
First, consider the application scenario. If it is in the field of food and medical packaging, PET (APET/PETG) is a good choice. It is environmentally friendly and non-toxic, with high transparency, and meets the requirements of direct contact with the human body such as food boxes and medicine trays. PP blister paper is resistant to high temperatures and is suitable for packaging microwave tableware and heat-resistant containers.
Second, select according to the characteristics of the material. In terms of mechanical properties, if the product needs to withstand greater external forces, such as blister packaging with thick-walled structures such as equipment shells, ABS/PC blister paper can be selected, which has high strength and impact resistance. For those who pay attention to the appearance and touch, such as high-end gifts and cosmetics linings, flocking sheets with a velvety surface can be selected.
Furthermore, the processing technology is also the basis for selection. Thin-wall molding (0.14 - 5.0mm) is suitable for PVC/PET blister paper, which can be quickly molded in a fully automatic blister machine; thick-wall molding (0.14 - 8.0mm) is suitable for ABS/PC/PMMA and other blister paper.
Environmental protection requirements cannot be ignored. In today's high environmental protection demand, recyclable blister paper such as PET and PP are more popular, and chlorine-containing PVC should be avoided as much as possible.
Finally, cost control should also be taken into consideration. PVC or PS blister paper can be used in low-cost scenarios, and PETG or acrylic blister paper can be used in high-end scenarios. In short, the selection of blister paper requires a comprehensive consideration of many factors to meet different packaging needs.