Plastic bags can be said to be common in our lives. They are especially useful for shopping, shopping, garbage bags, etc. Do you know how plastic bags are made? Next, Jinan plastic bag manufacturer will take you to know.
1. The process of printing plastic bags.
The premise of plastic bag printing is the placement of plastic film and plastic plate. The above steps describe the blow-molded film with order specifications. It is time to start printing. According to the required printing plate pattern, the printing plate and blow molding are generally synchronized. That is to say, after the blow molding is completed, the printing plate should also be prepared. The printing plate generally takes about 4 days.
The printing plastic bag is different from the color on one or both sides. For example, supermarket shopping bags, usually one or two colors are common on one or both sides, one color corresponds to one version, but different colors on both sides can be completely different, which is not good, for example, two colors have four versions on both sides. Plastic bag printing is generally intaglio printing, copper printing and offset printing. The printing unit sets the printing plate and roll plate, and adjusts the ink to print.