August 7, 2025

Plastic-based materials rely on molecular stability for safety. Biaxially oriented polypropylene (BOPP) is widely used due to its excellent chemical inertness. BOPP films that meet GB 4806.7-2016 standards must have monomer residues below 0.5 mg/kg and be free from phthalate plasticizers. For low-temperature environments, low-density polyethylene (LDPE) is preferred—it maintains flexibility even at -40°C, making […]

Material properties also influence design language. Eggshell surfaces are smooth and prone to glare, so large areas of high-saturation color should be avoided. Line-dominant lightweight designs are recommended. Fine lines of 1–2 mm ensure clarity while minimizing light reflection. Japanese designer Haruyo Morita used 0.8 mm black curves to depict a chick breaking out of