How to choose environmentally friendly aluminum foil packaging bag?

Now there is a big market for aluminum foil packaging bags, so how to choose aluminum foil packaging bags? Aluminum foil packaging bag has good shade separation, high heat sealing performance, good moisture-proof performance and high transparency. And acid resistance, wear resistance and other functions are also very good, so it is widely used in packaging bags in the food industry. Now packaging bags have attracted more and more attention. How to choose packaging bags, we need to pay attention to the green environmental protection of printing equipment and machinery. Do not produce harmful gases, odors and liquids. The production process is free of pollution and any harmful substances.

Materials without coating and plating shall be selected as far as possible. Colored plastic packaging bags shall not be used for food packaging. This kind of aluminum foil packaging bag is often made of recycled plastic. When leaving the factory, food packaging bags are odorless and odorless. Plastic packaging bags with special smell cannot be used for food packaging. Packaging materials without coating and plating shall be selected as far as possible to avoid serious disease insurance for children.

The appearance of vacuum packaging bag needs to be checked. The appearance inspection mainly depends on whether the packaging bag has obvious scratch; Whether there are pinholes; Whether there is pollution; Whether the sealing is standard. Test of compressive strength and bursting strength. The method of strength and breaking strength is to use the weight extrusion method, put the packaging bag on the table, and then add weight on it. After lasting for one minute, first vacuum the packaging bag to check whether there is deformation, leakage and so on. When selecting materials, environmental protection materials shall be selected. Attention shall be paid to the recyclability of aluminum foil packaging materials and the green environmental protection of materials. No secondary waste shall be used, especially industrial waste or recycled materials shall not be used for food packaging bags.