Based on the type of base material, semi-opaque white films can be categorized into polyethylene (PE), polypropylene (PP), and polyester (PET) variants. Among these, PE semi-opaque white films offer good flexibility and are widely used in packaging; PP films feature high rigidity and heat resistance; and PET films possess excellent mechanical strength and dimensional stability, making them common choices for electronics and high-end packaging.
In terms of production processes, semi-opaque white films primarily include cast films and blown films. Cast films offer uniform thickness and superior surface smoothness, making them suitable for applications requiring high aesthetic quality; blown films provide good tensile properties and lower production costs, leading to widespread use in general packaging and industrial sectors.
Regarding structural composition, these films can be classified as either monolayer or multilayer composite films. Monolayer films feature a simple structure and rely on relatively mature processing technology; multilayer composite films combine various functional layers to provide a blend of properties-such as opacity, strength, heat resistance, and printability-thereby meeting more complex application requirements.
Based on application, semi-opaque white films are categorized into types such as packaging, labeling, decorative, and functional films. Packaging films are primarily used for food, consumer goods, and industrial products; labeling films offer excellent printability and opacity; decorative films focus on visual aesthetics; and functional films provide specialized capabilities-such as thermal insulation, UV protection, and moisture resistance-offering broad application prospects in electronics, construction, and industrial manufacturing.
