How to distinguish whether composite packaging is made of aluminum foil or aluminized film material?
There are many ways to distinguish whether composite packaging is made of aluminum foil or aluminized film. Generally, you can refer to the following methods to distinguish:
1.Look : The package made of aluminum foil is not as bright as the package made of aluminized film. The aluminum foil has a thick aluminum layer and strong light-shielding; aluminized film has poor light-shielding, so the ones that can transmit strong light are made of aluminized films, and the ones with poor light transmittance are made of aluminum foil. The light-shielding and shielding performance of the composite packaging bag using aluminum foil is better than that of aluminized film. The aluminum foil package is silvery white or silver gray, and the aluminized film package is silvery yellow or silver black.
2. Hand feeling: The hand feeling of aluminum foil packaging is thick and firm, harder and heavier. The hand feeling of aluminum foil packaging is lighter and softer than aluminum foil packaging.
3. Folding: The aluminum foil packaging is easy to fold to produce dead folds and dead marks, and the aluminized packaging will not fold into dead folds and dead marks, and it will rebound soon.
4. Twisting: After the aluminum foil package is twisted, the coalescence is not easy to rebound, and the aluminum layer will break. After twisting, the aluminum-plated film package will bounce away quickly at the kinks, and the aluminum layer will not have obvious cracks.
5. Knife scraping: The aluminum foil can be scraped off with a knife, and the aluminum film will not be scraped off.
6. Fire: The aluminum foil is not easy to burn with the fire point, the aluminum layer will be rolled back, and the aluminum foil packaging will leave gray aluminum slag after burning. When the aluminized film is fired, different plastic films will burn, and there is no residue of aluminum slag.
Henan Tendeli Metallurgical Materials Co., Ltd. is a company that has been engaged in aluminum foil processing and sales for decades. We produce aluminum foil for various purposes, such as household aluminum foil, food container aluminum foil, flexible packaging aluminum foil, beer neck lable aluminum foil, heat sealing aluminum foil, industrial aluminum foil, etc. If you have the need for aluminum foil, welcome to come consult. Your inquiry will get our prompt attention!