Aluminum foil bag usually refers to aluminum-plastic composite vacuum bags, which is suitable for large-scale precision machinery and equipment, chemical raw materials, moisture-proof, lucifuge and vacuum-packaging for pharmaceutical intermediates. Aluminum foil bag is also known as anti-static aluminum foil bag and aluminum foil packaging bag. The appearance features of the product: opaque, silvery white, anti-gloss, good barrier properties, heat salability, optical shade, high temperature resistance, low temperature resistance, oil resistance, fragrance preservation; non-toxic and tasteless and softness characteristics. It mostly uses a four-layer structure, which has good water and oxygen isolation function. It is unrestricted and can be customized into bags with different specifications and styles, which can also be made of flat pockets, three-dimensional bags, organ bags and other styles.The aluminum foil bags subject to the GB and ASTM standard testing, which comply with the requirements of environmental protection (available third-party test report) and meet the most stringent environmental standards for packaging materials in the European Union and North America.
Methods to distinguish the quality of aluminum foil bag
After the aluminum foil bag printing factories make out the bags, of course, the quality is good or bad, and then how to distinguish its quality? We first need to see the overall effect from the material to printing and then to product printing. First, aluminum foil bag material selection. In material selection, we need no smell, and then ask some of the details from the aluminum foil bag manufacturers according to the requirements of its bags. Secondly, printing. During the printing process, we hope that the quality and material object are kind of realistic; the aluminum bags food packaging not appear wire drawing, fog version, plug version and printing missing. Of course, there cannot have steal workers or nutrients. Again, check the firmness of aluminum foil bags and whether the heat seal is firmly, for example, sprinkle its sealing by hands, but it will not open, or check whether it will crack or deform under overweight provisions.
Check the appearance and overall degree of aluminum foil bags
Finally, see the uniformity, transparency and color coordination of the appearance. We can often see the products with very poor level of packaging bags on the shelf in the market, and we are disgusted once we see such products. Some products will be off the printed color, such products are defective, it cannot happen. In addition, the overall degree on the surface of the aluminum foil bags, which does not appear folding, etc.
The article is come from:http://www.power-supplier.info/aluminum-foil-bags/methods-to-identify-the-quality-of-aluminum-foil-bags.htm