Production process of plastic packaging bags

As a very large consumer product, the use of plastic packaging bags provides great convenience to people's daily life. Whether it is to go to the market to buy food, to go shopping in the supermarket, or to buy clothes or shoes, it is inseparable from its use. Although the use of plastic packaging bags is very extensive, many friends do not know anything about its production process. So do you know what the production process of plastic packaging bags is? The following editor will introduce to you: Production process of plastic packaging bags: 1. Raw materials Select the raw materials of plastic packaging bags and determine the materials used. 2. Printing refers to making the text and patterns on the original into a printing plate, coating the surface of the printing plate with ink, and transferring the graphics and text on the printing plate to the surface of the printed material by pressure, and copying them accurately and in large quantities. produce the same print as the original. Under normal circumstances, printing is mainly divided into surface printing and inner printing. 3. Composite Basic principle of plastic composite flexible packaging: each material has different advantages and disadvantages, and the technology of bonding two or more layers of materials together through a medium (such as glue) to make packaging films and bags achieve better performance. This technology is called in the production process“Compound process”. 4. Curing The purpose of curing is to speed up the curing speed of glue between materials. 5. Slitting Cut the printed and compounded materials into specifications required by customers. 6. Bag making The printed, compounded and slitted materials are made into various bags required by customers. A variety of bag types can be made: middle-sealed bags, side-sealed bags, stand-up bags, K-shaped bags, R bags, four-side sealed bags, and zipper bags. 7. Quality control The quality control of plastic packaging bags mainly includes three aspects: inspection of raw materials before storage, online inspection of products, and inspection of products before shipment. The content introduced above is the production process of plastic packaging bags. However, due to the difference of each plastic packaging bag manufacturer, the production process may also be different. Therefore, the actual manufacturer should prevail.
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