The following three-dimensional marijuana mylar bag manufacturers teach you how to identify the quality of aluminum foil marijuana mylar bags: 1. First of all, the materials used for aluminum foil marijuana mylar bags: when you look at the samples and buy them, first smell them for any special smell. If there is a peculiar smell, it does not meet the hygienic standards and may affect the normal use of the aluminum foil marijuana mylar bag. If there is no special smell, you can check the transparency of the aluminum foil marijuana mylar bag, whether the clarity is uniform, whether there is a sense of impurities, etc. Second, look at the firmness of the aluminum foil marijuana mylar bag: the firmness of the aluminum foil marijuana mylar bag is mainly divided into two types, which are consistent with firmness and hot air firmness. Aluminum foil marijuana mylar bags are made of different materials, so the degree of firmness is also different. The main way to distinguish is to tear it by hand at the edge of the marijuana mylar bag. marijuana mylar bags made of nylon and high-pressure film are generally difficult to tear apart by hand, and can be used to hold relatively heavy products such as semiconductor items, large particles, etc., while marijuana mylar bags made of OPP heat-sealing film are easy to tear. It can only hold some light products; after the marijuana mylar bag is torn, it depends on the shape and structure of the section. If it is torn evenly from the middle of the heat seal of the marijuana mylar bag, it means that the heat seal of the marijuana mylar bag is poor and it is easy to break during the production process. If the edge is torn off, it means that the quality of heat sealing is better; secondly, it depends on the composite firmness of the packaging marijuana mylar bag. The method is to check how many layers of structure there are at the crack, and then see if it can be separated by hand. If it is not easy to separate , it means that the composite firmness is good, if it is pulled apart lightly, it means that the quality is poor; so to check the firmness of the aluminum foil marijuana mylar bag, it is also necessary to check whether there are bubbles or wrinkles on the surface of the packaging marijuana mylar bag. 3. Look at the uniformity of the appearance of the aluminum foil marijuana mylar bag: first observe the flatness of the aluminum foil marijuana mylar bag. Generally, the higher the flatness, the better, except for the different needs of the material, such as the packaging marijuana mylar bag made of nylon and high-pressure film, the heat seal of the marijuana mylar bag will have a wave shape; it is also necessary to observe whether the trimming of the packaging marijuana mylar bag is neat , the neater the better. YLTpacking not only produces aluminum foil marijuana mylar bags, but also anti-static shielding marijuana mylar bags and transparent vacuum marijuana mylar bags. Fourth, look at the printing quality of aluminum foil marijuana mylar bags: the printing quality of aluminum foil marijuana mylar bags can be seen from the physical map, the higher the level of fidelity, the better. Secondly, check whether the marijuana mylar bag has drawing, fogging, blocking, missing printing, etc. If this happens, it means that the printing requirements are not standard.