1. The inner layer of the aluminum foil dog grain bag is PE polyethylene, which is odorless, tasteless, colorless and nontoxic. Its mechanical strength is relatively low, the thickness error is relatively large, and it is easy to stretch, so it is not conducive to multi-color printing and accurate positioning. Because of its good heat sealing property, good water resistance, acid and alkali resistance, it is not suitable for printing In general, it is used as a heat seal inside the composite material to directly contact the product.

2. The surface printing layer is PET polyester -- PET film, with good transparency, low haze, odorless, tasteless, colorless and nontoxic; it has good mechanical properties, strong rigidity, good stiffness, good tensile strength, and good thickness, which is conducive to printing; it has good air tightness, general water resistance, and good fragrance retention; aluminum foil dog grain bag has excellent high and low temperature resistance, and can withstand most acid and alkali, oil resistance, but not strong alkali 。

3. The intermediate layer is al aluminum foil -- the appearance of Al aluminum foil is silver opaque, with strong reflective property and soft texture; it is colorless, tasteless, odorless and nontoxic; it is a very thin material, commonly used for composite is only 7-wire thickness, although its density is very light due to its thin thickness; it has strong temperature adaptability, heat resistance and cold resistance, and aluminum foil dog grain bag is not easy in high and low temperature It has a high barrier, moisture and gas barrier is very superior, it can resist oil, shading is very good, it also has heat sealing, can also be printed. http://www.dgbpk.com/
Dongguan Beite packaging materials Co., Ltd
Aluminum foil packaging bags, mask bags, self-supporting zipper bags, eight side sealing bags, red wine bags, dog food bags, beverage bags, box bags, packaging roll film, perforated fruit bags, Dongguan bate packing material Co., Ltd.