What are the production processes of baking bags?

Packaging design -- copperplate printing -- composite packaging -- bag cutting

1. Baking bag design: This is to design the layout of the food packaging bag according to the requirements of the food company, that is, the pattern of the food packaging bag. A good design layout of food packaging bags plays a very good role in improving the sales volume of products. After all, the first glance is still very important ^ - ^. This pattern is generally designed by food companies, and then given to packaging bag manufacturers.

2. Copperplate: it is to make copper plate on food packaging printing machine according to the confirmation draft of food packaging bag design. The version into a cylinder, and is a set, not a single one, the specific size of the plate number to be determined according to the previous step of packaging design. One color makes one copperplate. If there are five colors, you have to make five copperplates ^ - ^. Of course, sometimes it can be used together.

3. Layout printing: the prepared copper plate is loaded on the food packaging printing machine, and then printed according to the first layer material confirmed by the food company, because a food packaging bag is usually composed of three layers of materials. Printing requires only one layer of printing surface. There is no difference between the printed effect drawing and the design draft. Dongguan Yuli packaging uses nine color automatic computer-controlled printing machine. The printing effect can be compared with the poster.

4. Composite: the so-called composite is to bond the two materials together and stick the ink surface between the two layers of materials, such as PA (nylon) / PE (reinforcement). Among them, nylon is the first layer of material, that is, the printing material, and PE (reinforcement) is the second layer material, that is, composite material. In some cases, there will be a third or fourth layer of material. The third layer is needed for ordinary aluminum foil bag (OPP light film / Al foil / PE reinforced). Note: it is usually necessary to check the previously printed materials before lamination, and eliminate the materials with poor printing effect.

5. Bag making and bag cutting: bag making and bag cutting are completed on one machine. When the composite material is finished, it is put on the bag making machine. After debugging the bag making machine, it can heat seal the food packaging bag material according to the adjusted size, and finally cut the bag according to the adjusted size. Automatic bag making to bag cutting. Giant packaging has a fully automatic bag making machine. Higher efficiency and better quality.