Aluminum foil bags are also called pure aluminum bags. Advantages of aluminum foil bags: The biggest feature of aluminum foil bags is to avoid light, that is, the lowest light transmittance. Some products that are afraid of light exposure must use aluminum foil bags, such as some light-sensitive drugs. In addition, because the aluminum foil is opaque and has better light reflection performance, the printing effect of the bag is better, the color is fuller, and the gloss is better. Furthermore, the aluminum foil bag has a stiffer body.
Disadvantages of aluminum foil bags: First, it is easier to produce wrinkles, and the wrinkles produced are not easy to disappear because aluminum foil metal has no elasticity; second, the material cost is higher; third, a large order quantity is required to start the machine, because if the order is too small, It will be difficult to order aluminum foil raw materials.
The aluminum foil bag has strong air barrier properties, oxidation resistance, water resistance, and moisture resistance; high blast resistance, puncture resistance and tear resistance; high temperature resistance, low temperature resistance, oil resistance, good fragrance retention performance; non-toxic and tasteless, in line with food and pharmaceutical packaging hygiene Standard; good heat-seal performance, flexibility, high barrier performance and other characteristics.