Common plastic packaging materials include PET, PP, PS, and PVC. Choosing the right material requires comprehensive consideration based on the nature of the packaging and the packaging requirements.
1. PET Material
PET is a commonly used material for food packaging, pharmaceutical packaging, and daily chemical packaging. It is waterproof, moisture-proof, transparent, and has strong tensile strength. It is also environmentally friendly and recyclable. However, it is relatively fragile and has a low heat resistance, making it unsuitable for products with high filling temperatures.
2. PP Material
PP is an environmentally friendly, recyclable material with high temperature resistance, good toughness, acid and alkali corrosion resistance, and abrasion resistance, making it suitable for products with high filling temperatures.
3. PS Material
PS material offers excellent transparency, impact resistance, high rigidity, and chemical stability. It is a commonly used opaque plastic packaging material suitable for food products that do not require heating.
PVC: PVC has excellent plasticity, allowing packaging boxes to be formed into various shapes to suit product requirements. It is also tear-resistant, waterproof, and moisture-proof. However, it can sometimes release harmful substances, making it unsuitable for food packaging.
