1. Transparency and clarity
Advantages of high transparency: High-quality PVC shrink film usually has high transparency, which can clearly show the appearance, color and details of the product, and is suitable for products that require visual appeal (such as food, gifts).
Risks of low transparency: If the film is turbid or matte/frosted effects are added, visibility may be reduced, which is suitable for products that pursue low-key texture or need to hide some content.
2. Surface gloss
High gloss enhances texture: Smooth surface can reflect light and enhance the visual appeal of the product, but it may produce reflections under strong light, and the display angle needs to be adjusted.
Matte treatment anti-glare: Reduces reflection interference, suitable for display in bright environments, but may weaken the gloss of the product.
3. Printing and design
Partial printing retains window: By leaving transparent areas (such as label hollowing), brand information display and product visibility can be balanced.
Limitations of full-width printing: Large-area patterns or text may block the product, and key display content needs to be selected according to marketing strategies.
4. Shrinkage uniformity and flatness
The importance of uniform shrinkage: Good production technology ensures that the film is close to the product and has no wrinkles, keeping the appearance neat; if the shrinkage is uneven, it may cause distortion and affect the appearance. Edge treatment: Whether the edge is neat after shrinkage will also affect the overall appearance, and the heating parameters need to be optimized.
5. Thickness and light transmittance
Advantages of thin film: Thinner PVC film has better light transmittance and higher visibility, but may sacrifice some tear resistance. Trade-offs of thick film: Increased protection may reduce transparency, which is suitable for products with high durability requirements but low visibility requirements.
