Plastic polymailer bags are mainly divided into two types: Polyethylene Bags and polypropylene bags. Polyethylene bags refer to Plastic Bags made of polyethylene as the main raw material. Polyethylene bags have good flexibility and transparency, and have good tensile strength, tear resistance and abrasion resistance. Polyethylene bags also have good water resistance and chemical stability, and can be used in different environments. Polyethylene bags are usually used in supermarket shopping bags, garbage bags, packaging bags and other fields.
Polypropylene bags refer to plastic bags made of polypropylene as the main raw material. Polypropylene bags have excellent heat and chemical resistance for extra durability. In addition, polypropylene bags also have excellent moisture resistance and air permeability, which can effectively protect the packaging. Polypropylene bags are usually used in food packaging bags, cosmetic packaging bags, pharmaceutical packaging bags and other fields. Therefore, polyethylene bags and polypropylene bags have their own characteristics, and different plastic bags can be selected according to different needs. In addition, the production process of polyethylene bags and polypropylene bags is also different. Polyethylene bags generally adopt the extrusion molding process, that is, the heated polyethylene material is extruded through an extruder, and then processed by cooling, cutting, etc. to make Poly Mailers. Polypropylene bags can be made into different types of bags by using different processes such as blow molding and heat sealing. It should be noted that since plastic bags will pollute the environment, are non-degradable, and affect the ecological balance, care must be taken during use to minimize the impact of plastic bags on the environment. For example, plastic bags can be reused, or biodegradable alternatives such as environmental protection bags and paper bags can be chosen to reduce the harm of plastic bags to the environment. We support Custom Printed Poly Mailers, please contact us if you are interested.
