The cost of the plastic bag is low, and it is convenient and easy to use. The shopping bag is one of the major inventions of the 20th century, and it is also the image of human progress and civilization. The main raw materials of plastic bags are petroleum by-products polyethylene (PE) and polypropylene (PP). Polyethylene, abbreviated as PE, is its raw material. Custom Plastic Kraft Zip Lock Nut Packaging Bag Suppliers It is recognized as the best material in contact with food in the world. It is non-toxic, tasteless and odorless. It is used in cling film, vest-style plastic bags, plastic food bags, etc. It is the most important and most important material used in plastic packaging printing; polypropylene (PP) ) Plastic film, plastic bag, with high transparency, mainly used for packaging of bread and snacks. As long as we can do a good job in the recycling of waste plastic packaging materials in time, the recycling technology will be further developed, and pollution can be avoided; plastic bags do not require additional exploitation of natural resources for manufacturing, so plastic bags can be used as best as they can be, and they are lightweight. High tensile impact resistance strength, energy saving and other advantages.Nowadays, plastic bags have been greatly improved in terms of technology and safety. I produce various plastic bags such as: food packaging bags, flexible packaging composite bags, vacuum bags, aluminum foil bags, retort bags, quick-freeze bags, plastic wrap/preservation Bags, heat shrinkable film/shrinkable bags, etc. have passed QS certification, convenient, lightweight, durable, high plasticity, waterproof and antibacterial, cheap, and are unmatched by other packaging products. It also reduces food waste. The anti-bacterial and anti-mildew nature also protects people’s health. Plastic bags can also replace other packaging materials, such as cans, paper, glass, etc., to reduce energy loss and greenhouse gas emissions. Plastic bags have various benefits. Plastic bags have always been widely used. Plastic bags are the most common packaging for daily shopping.Plastic is an indispensable material in our modern society, ranging from artificial satellites and airplanes to mobile phones and ball pens. Plastics can be seen everywhere, and these plastics are petrochemical products. Plastic film is one of the varieties, and plastic bags are bags made of plastic film.