There are many kinds of food packaging materials, and different kinds of packaging bags will use different materials. Here are some common food packaging materials:
Polyethylene (PE) : This is a common plastic material that is widely used to make food packaging. It has good flexibility and durability, and can be adjusted for thickness as needed.
Polypropylene (PP) : This is also a common plastic material used to make packaged foods such as crisps, sweets and biscuits. It has good transparency, strength and durability.
Polyester (PET) : This material is commonly used to make transparent packaging bags, such as those used to wrap fruits and vegetables. It has good transparency and rigidity.
Paper: Paper is a biodegradable material, so it is widely used in food packaging. It is commonly used to pack dry goods and dried foods such as instant noodles.
Aluminum foil: Aluminum foil is a commonly used material, usually combined with plastic film to make food packaging. This material can prevent moisture, air and light from entering the packaging, so it is suitable for packaging foods that need to be fresh.
It should be noted that although the above materials are widely used in food packaging bags, different materials have different application scopes, so it is necessary to choose according to the specific situation. At the same time, in order to ensure food safety, food packaging packages also need to meet the relevant national and regional regulations and standards.
