Views:0 Author:Site Editor Publish Time: 2021-09-14 Origin:Site
Material: bright aluminum foil composite material (PET/Al/PE), matt aluminum foil composite material (MPET/Al/PE).
Characteristics of aluminum foil: the surface of aluminum foil is very clean and sanitary. No microorganisms can grow on its surface. It can be in direct contact with food without any danger to human health. As an opaque packaging material, it has good protection for products exposed to sunlight, such as oily products, solid drinks, coffee, etc. It is a good packaging material, whether at high or low temperature, the aluminum foil will not be soaked. The air and water transmittance are low, which can well protect the inner products. The aluminum foil is not volatile, and itself and the packaged food will not dry or shrink. The tasteless and odorless packaging material will not make the packaged food have any peculiar smell. It has stable performance, which can adapt to various high and low temperature environments, and has certain resistance to corrosion corrosive.
Aluminum foil is also widely used as isolation layer, heat exchange, and as a conductor. Usually, the thickness of aluminum foil used in paper packaging, beverage packaging and food packaging bags is only 6.5 microns. This thin aluminum layer can be waterproof, keep fresh, prevent harmful microorganisms and antifouling. It is opaque, silvery white, anti gloss and good Barrier, high / low temperature resistance, oil resistance, heat sealing, optical rotation shielding, fragrance retention, no odor, softness, etc.
Aluminum plated packaging bag is also called aluminum plastic packaging bag. Because the inner layer structure contains pure aluminum foil, it is referred to as aluminum foil packaging bag for short, also known as pure aluminum bag. In fact, aluminum foil bag is a bag made of a variety of plastic films and 99.9% pure aluminum layer, which is cut through bag forming and Mechanical sealing. In terms of performance, the cooling effect is better than aluminum plated bag.
For the same product, water loss and a large number of microorganisms may occur in a month when it is placed in an aluminum plated package. However, a similar situation may not occur until half a year later when it is placed in an aluminum foil packaging bag. In order to ensure the quality of the internal products, many packages are vacuum treated. After vacuum, the internal oxygen will be reduced and micro-organisms will grow Biology has no growth environment, so it can protect products.
First, because the interlayer of aluminum foil bag is pure aluminum foil, its moisture-proof, light-proof, waterproof and oxidation are much stronger than aluminum plated packaging bags. It is durable It is the endorsement of aluminum foil packaging bags. Both kinds of packaging bags can be printed with patterns. The feel of aluminum foil bags is soft, and the feel of aluminum plated bags is hard.
Secondly, aluminum foil packaging bags have good stability and generally will not deteriorate under the influence of the external environment. The functional role is that the two are very different.
Therefore, aluminum foil bags are more suitable for food, medicine, chemical products, some electronic accessories and mechanical accessories. Aluminum foil bags are often used because of the need of sealing. Aluminum plated bags are mostly used for fast food products. This does not mean that aluminum plated packaging bags are bad, but It is proved that the cost performance of aluminized packaging is very high.