Aluminum foil is a high-end printing and packaging material, and aluminum foil bags produced using it as a material are also a very common high-end packaging bag in our daily lives. Aluminum foil bags have good insulation, which is impermeable to gases and water vapor, and are not easily damaged by bacteria and pests. So, it has a wide range of applications in the packaging of food, medicine, and other industries.In addition, some precision instruments also use this type of packaging.
Although aluminum foil bags have a series of advantages, they also have some points to pay attention to :
If we want to heat food in an aluminum foil bag, we should ensure that the surface of the bag is clean, free of oil and dust, and the surface tension must reach at least 72mN/m. Distilled water can be used for inspection, and distilled water should be completely soaked on the surface of the aluminum foil. Once the surface of the aluminum foil bag is heavily oiled, it will affect the composite strength of the aluminum foil and other materials. At this time, if the aluminum foil bag is used to wrap food for heating, it may cause delamination and peeling of the aluminum foil, affecting food safety.
Aluminum foil has good toughness and a soft texture, so that it will not break when folded. In addition, the purchased aluminum foil bag should be stored in a dry place when not in use, and should be used as soon as possible to prevent moisture absorption and oxidation caused by the aluminum foil being stored for too long, resulting in poor quality.
The number of pinholes in aluminum foil should not be too large, as pinholes greatly reduce the insulation of the aluminum foil bag. Light and gas can directly enter the aluminum foil bag through the pinholes, affecting the objects inside the bag. Generally speaking, thicker aluminum foil should have fewer pinholes, such as 7μm The number of pinholes in aluminum foil should be less than 200 per square meter, with a thickness of 9μm The number of pinholes in aluminum foil should be less than 100 per square meter,And the aperture of all these pinholes cannot be greater than 20μm.
About Us
Fujin New Materials, after several years of development, has developed into a packaging enterprise with a certain scale. Our company integrates R & D, design, printing, bag making, testing and after-sales service into a comprehensive printing company. Our company is specialized in producing vacuum food bag, aluminum foil bag, opp bags, recyclable coffee bag, kraft paper ziplock bags, snacks packaging pouches, stand up ziplock bags, pet food bag,etc.
Stand Up Bag
3 Side Seal Bag
Flat Bottom Bag
Coffee Bag