Aluminum foil bag is the compound bag containing aluminum foil, which is made into aluminum foil bags by high barrier material after a dry laminating based on aluminum unique nature. Film substrate of composite bag: outer layer printable film BOPA, BOPET, BOPP; inner layer heat-sealable film CPP, PE, and there is also co-extruded film. AL (aluminum foil) is one of them, which is usually used as a middle layer. These materials are composited into composite film upon request by glue!
Common structure of aluminum foil bags: PET / PA / PE or CPP/ PET / AL / CPP PA / AL / CPP PET/PA0 / AL / CPP. Basic characteristics: PE is suitable for low temperature use; CPP is suitable for high temperature cooking. PA can increase physical strength, puncture resistance; AL aluminum foil is used in order to increase the barrier properties, PET generally is used as an intermediate layer, to increase mechanical strength, stiff. Then, according to the needs, combinations, various properties, there are transparent, in order to increase the barrier properties [oxygen barrier wet resistance, we can use water resistant PVA high barrier coating.
Features:
1. Strong air barrier performance, oxidation resistant, water-proof, moisture-proof 2. Strong mechanical properties, high anti-blasting performance, strong anti-puncture and tear resistance 3. High temperature resistant (121℃), low temperature resistant (-50℃), oil resistance, excellent aroma retention performance 4. Non-toxic and tasteless, in line with the food, pharmaceutical packaging hygiene standards 5. Good heat-sealing properties, softness, and good barrier properties 6. Aluminum foil bag has metallic luster, which has a higher reflective ability to heat and light, and aluminum foil bag printing color is more beautiful and bright. 7. Aluminum foil bags have good isolation performance, strong protection performance, which have impervious to gases and water vapor characteristics, so they can effectively prevent moisture absorption and gasification of items in the packaging, less susceptible to bacteria and insects, good shape stability, not subject to changes in humidity impact. 8. Use shield or elution to part aluminize, you can get any pattern and any transparent window, so that the customer can see the contents in the packaging, which is a significant advance in the technology of production of aluminum foil bags, but also a notable feature of aluminum foil bags.
Environmental standards for aluminum foil bag
Aluminum foil bag usually refers to aluminum-plastic composite vacuum bag, such aluminum foil bag product is suitable for moisture-proof, keeping out of the sun, vacuum packaging of large-scale precision machinery and equipment, chemical raw materials, pharmaceutical intermediates. It mostly uses a four-layer structure, which has good impermeable, oxygen barrier function. Unrestricted and can be customized with different specifications, style aluminum bags food packaging, which can be made into flat pockets, three-dimensional bags, organ bags and other styles. Aluminum foil bag products should be subject to the GB and ASTM standard testing, the products comply with the requirements of environmental protection (third-party test report available); aluminum foil bag products comply with the most stringent environmental standards for packaging materials in the European Union and North America.
www.chinaunipak.com is a professional soft packing manufacturer, which focus on all kinds of plastic bags with advanced equipments and experienced hi-technology. The main products of our company are all kinds of plastic bags used in food, garment, electronic, gift, chemical and medicine industries, such as color-printing multilayer compound middle-seal bag and three side-seal bag, compound header bag, plat bag, zip lock bag, stand up zip lock bag, anti-static bag, vacuum nylon bag, retort bag, aluminium foil bag, etc.
This article is come from:http://www.handbagmanufacturer.com.cn/index.php/aluminum-foil-bag-features-and-selection-standard.htm
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