The aluminum foil can be classified  according to thickness, shape, state or material 
The thickness of aluminum foil can be divided into thick foil, single - zero foil and double - zero foil. Thick foil: the thickness is 0. 1 to 0. 2 mm of the foil. Single zero foil: the thickness is 0. Olmm and less than 0. 1 mm/foil. Double zero foil: the so-called double zero foil is the foil with two zeros behind the decimal point when its thickness is measured in mm, usually of aluminum foil with a thickness of less than 0.0075 mm. When expressed in English, the thick foil is called "heavy gaugefoil", which is called "medium gaugefoil" and "lightgaugefoil". The aluminum foil with a thickness of less than 40ltm is sometimes referred to as light gauge foil, while the aluminum foil of >40btm is referred to as heavy gaugefoil.
Aluminum foil can be divided into rolled aluminum foil and flake aluminum foil. Most of the aluminum foil processing woolen material is in rolled supply. Only a few handicraft packaging occasions use sheet aluminum foil.
Aluminum foil can be divided into hard foil, semi-hard foil and soft foil. Hard foil: aluminum foil without softening treatment (annealing) without degreasing treatment. Therefore, the hard foil must be degreased before printing, bonding and coating. If it is used for forming, it can be used directly. Semi-hard foil: aluminum foil hardness (or strength) of aluminum foil between hard foil and soft foil, usually used for forming processing. Soft foil: aluminum foil with soft and soft material after rolling, with no residual oil on the surface. Most current applications, such as packaging, composite, electrical materials, etc., use soft foil.
Aluminum foil according to the surface can be divided into a light aluminum foil and two - faced aluminum foil. One side of the aluminum foil: a double - rolled aluminum foil, and then a bright, - surface hair, such aluminum foil is called an optical foil. The thickness of a light aluminum foil usually does not exceed o. 025 mm. Two sides of aluminum foil: single sheet rolled aluminum foil, two drawing and roll contact, the two sides of aluminum foil because of the surface roughness of the roller surface is divided into mirror two - sided aluminum foil and ordinary two - sided aluminum foil. The thickness of the aluminum foil is not less than 0. 01 mm.
Aluminum foil can be divided into plain aluminumfoil, embossing aluminum foil, composite aluminum foil, coating aluminum foil, tinsel foil and printed aluminum foil. 1. Foil: aluminum foil without any other processing after rolling, also known as light foil. Embossed foil: the surface is pressed with various decorative aluminum foil. Composite foil: aluminum foil and paper, plastic film and cardboard are glued together to form composite aluminum foil. Coating foil: aluminum foil coated with various kinds of resin or lacquer. Colour aluminum foil: surface coated with a single color of aluminum foil. Aluminum foil: aluminum foil that forms a variety of patterns, patterns, text or pictures on the surface, can be a color, with up to 12 colors.
Aluminum foil has good light material, airtight, and coated - a series of advantages, such as reason, many departments in the national economy and people get extensive application in daily life, but now it is mainly used for packaging, electrical and building three areas

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