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Many people only know that the material is plastic bags, but from a deeper level, the plastic is also a combination of a lot of raw materials, mainly the polymer. And watermark convenient bag has many kinds of performance are also different. On the basis of the original need to join some other accessories such as plasticizing agent, lubricant, coloring agent and etc..
The important process watermark convenient bag is polyethylene blow molding, divided into high and low density two. In simple terms, the process of watermark is convenient:
1 , small film blowing machine is the necessary equipment, it can realize the process of heating melting into polyethylene film cylinder material;
2, bag making machine or sealing machine, the cylinder material cutting thermal synthetic plastic bags.
Watermark the convenient bag is usually a large batch. Therefore, it is necessary more professional mechanical equipment and operating personnel, before they can make a better quality of the watermark convenient bag, and decrease the harm from pollution.