The main varieties of plastic containers are high-density polyethylene, low-density polyethylene and polystyrene. Rigid polyvinyl chloride, polypropylene, vinylidene chloride, cellulose plastic, polycarbonate, ethylene copolymer, nylon, etc.　　1. High-density polyethylene container 　　

high-density polyethylene blow-molded container is one of the most used blow-molded products. Polyethylene has low moisture permeability, non-toxic, and odorless. It is suitable for food packaging, but it is resistant to gas and fragrance. Organic vapor is permeable to food. Drugs and chemicals are not suitable for long-term storage. Generally used to contain liquid detergent, household bleach, salt, condiments, milk, sulfuric acid, acetic acid, antifreeze, etc.　　Second, low-density polyethylene container　　 low-density polyethylene is rich in flexibility, cold-resistant, moisture-proof, waterproof, and molded. It is convenient to burn, and the cost of the container is low, so it has more applications. It can be used to manufacture squeeze containers to store viscous products and be used for packaging honey, powder insecticides, liquid detergents, and chemicals.　　3. Rigid PVC container 　　 Rigid PVC has low gas and aroma permeability, oil resistance and chemical resistance. It is combined with impact resistance agents such as acrylonitrile-butadiene-styrene copolymer (abs) and methyl a-bromocrotonate Bottle mould/mold (MBS) to increase its strength and can be used for packaging food, cosmetics, liquid detergents, etc. Rigid polyvinyl chloride can also be made into plastic transparent cans or canned fruit containers.　　

Four, polystyrene container 　　 polystyrene container, can adopt sheet heat synthesis type and injection molding. General polystyrene is transparent, and impact-resistant polystyrene is translucent. Polystyrene containers can be used as packaging for yogurt, sour cheese, powdered chemical seasonings, etc.　　5. Polypropylene container 　　

Polypropylene is an ideal material for making transparent cans. Polypropylene sheets can be used to make transparent cans, and oriented polypropylene can be used as transparent hard containers. Polyflashene blow molding containers are often used for vinegar, infusion, liquid detergents, etc.