The thickness of the aluminum foil
Differences can be divided according to the thickness of aluminum foil thick foil, single zero foil and double zero foil.
① foil thickness: 0.1 ~ 0.2mm thickness of the foil.
② single zero foil: the thickness of 0.01mm and less than 0.1mm / foil.(aluminum foil roll)
③ double zero foil: the so-called double-zero when the foil thickness is in mm units of measurement after the decimal two zero foil, usually aluminum foil having a thickness of less than 0.01, i.e., 0.005 ~ 0.009mm aluminum foil.
aluminum foil Characteristics
Aluminum foil having a clean, hygienic and shiny appearance, it can be used with many other packaging materials made of integrated packaging materials, aluminum foil and surface printing effects than other materials are good, in addition to aluminum foil as well as the following features:
(1) the aluminum foil surface is extremely clean, sanitary, any bacteria or micro-organisms can not grow on its surface.
(2) is a non-toxic aluminum foil packaging material, it can be in direct contact with food without any hardship can be harmful to human health.
(3) aluminum foil as a packaging material is odorless, it does not make any packaged food smell.
(4) If the foil itself is not volatile, and packaging of its own food will not dry or shrink.
(5) whether in high or low temperatures, there will be no grease foil infiltration phenomenon.
(6) as an opaque aluminum foil packaging material, so the sun rays of products, such as margarine is a good packaging material.(colored aluminum foil)
(7) Al foil has good plasticity, it can be used to package products of various shapes. It may result in any of various containers.
(8) aluminum foil hardness, tensile strength is also large, but its small tear strength, so easy to tear.
(9) itself can not heat sealed aluminum foil, must be applied on the surface of a material can be hot, hot as pe can be closed.(industrial aluminum foil)
(10) when the aluminum foil and other heavy metals or heavy metals in contact, there may be adverse reactions.