In the realm of advanced packaging materials, aluminum roll films stand out as a cornerstone of reliability, offering unparalleled barrier protection and versatility across industries. Composed of thin aluminum layers laminated with polymers (such as PET, PE, or CPP), these flexible films combine the superior properties of aluminum with the flexibility and processability of plastic, making them ideal for preserving product integrity, extending shelf life, and ensuring safety. From food and pharmaceuticals to cosmetics and industrial goods, aluminum roll films have become indispensable for products that demand protection against oxygen, moisture, light, and contaminants. This article explores the core characteristics, key types, industry applications, and comparative advantages of aluminum roll films, with a detailed analysis of leading variants.