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What are the characteristics of aluminum foil bags?

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the surface of a common aluminum foil bag generally has the characteristics of reflective luster, which means that it does not absorb light and is made in multiple layers. Therefore, aluminum foil paper not only has good shading, but also has strong isolation, and has good oil resistance and softness due to the composition of aluminum inside. Aluminum foil bags can be seen from the name. Aluminum foil bags are not plastic bags, and even better than ordinary plastic bags. What kind of bag should you choose when you want to refrigerate or pack food at present and ensure that the preservation period of food is as long as possible? Don’t worry about which kind of packaging bag to choose. Aluminum foil bag is the best choice

aluminum foil bag features: strong air barrier performance, anti-oxidation, waterproof and moisture-proof. Strong mechanical performance, high blasting resistance, strong puncture and tear resistance. High temperature resistance (121 ℃), low temperature resistance (- 50 ℃), oil resistance and good fragrance retention. It is non-toxic and tasteless, and meets the hygienic standards for food and drug packaging. Good heat sealing performance, flexibility, high barrier performance. Advantages of aluminum foil bag: shell maintenance: the shell can separate food from oxygen, steam and stains. Anti leakage is also the demand element of packaging design. Some packages include a drying agent or deoxidizer to extend the shelf life. Vacuum packaging or air pumped into the packaging bag is also the primary food packaging method. Keeping food clean, novel and safe within the shelf life is the primary function of packaging bags. Physical maintenance: the food stored in the packaging bag needs to prevent extrusion, impact, vibration, temperature difference and other scenes. Package or put into the same package: inserting small objects of the same variety into one package is a good way to reduce volume. Powder and granular objects need to be encapsulated. Conveying information: packaging and labeling inform people how to use, transport, receive, take over or dispose of packaging or food. Safety: packaging can play a major role in reducing transportation safety risks. Bags can also prevent food from returning to other goods. Food packaging can also reduce the risk of food being eaten secretly. Some food packages are strong and have anti-counterfeiting marks. The effect is to protect the benefits of businesses from being damaged. The packaging bag can have laser logo, special color, SMS authentication and other labels. In order to prevent theft, other retailers pasted electronic monitoring labels on food packaging bags, waiting for consumers to take them to the outlet of the store for degaussing. Marketing: Marketing often uses package labels to encourage potential buyers to buy goods. Packaging design has become an insignificant and changing scene for decades. Marketing communication and graphic design are used in the outer packaging box and (for some reasons) the highlights of sales display. Convenience: packaging can facilitate the purchase, loading and unloading, stacking, display, sale, opening, reassembly, application and reuse

aluminum foil packaging bags are more and more widely used in food packaging. Aluminum foil bags are bags containing aluminum foil in composite materials. Aluminum foil bag is widely used, which is related to the material characteristics of aluminum foil itself. The biggest advantage of the aluminum foil in the aluminum foil bag is that it blocks oxygen and moisture very well. The water permeability and oxygen permeability are both 1. It is a good barrier material. In addition, the aluminum foil in the aluminum foil bag has good heat resistance, good light reflection and gloss, and good shape at high and low temperature. It is suitable for high-temperature cooking and can withstand up to 125 ℃

however, as the material itself, the aluminum foil in the aluminum foil bag also has its own limitations. First of all, the biggest disadvantage of aluminum foil is that it is very brittle and easy to break. It’s hard to compound. Secondly, the biggest disadvantage of aluminum foil is its poor acid resistance, so when packaging fruit juice or acidic products, it is generally not placed in the sealing layer close to the inside, so as to ensure that it will not be penetrated and separated by acid. Moreover, it has no heat sealing property and cannot be used as the innermost layer of the composite bag. Based on the above material characteristics, the aluminum foil in the aluminum foil bag can only be used as the middle material of the bag

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