What is the production process of food packaging bags?

Technology: packaging design-copperplate making-layout printing-composite packaging-bag cutting.

1, packaging design: this is the layout of packaging bags designed according to customer requirements. It is usually designed by the customer and then handed over to the manufacturer.

2. Copper plate production: the required copper plate is produced on the printing machine according to the confirmation draft of the packaging bag design.

3. Typesetting and printing: Install the prepared copper plate on the packaging and printing machine, and then print according to the first layer material confirmed by the customer, because a food packaging bag usually consists of three layers of materials. And printing only needs to print one layer of surface.

4. Compounding: Compounding means bonding two materials together and sticking the ink surface between the two materials.

5. Bag making and bag cutting: Bag making and bag cutting are completed on one machine. After the materials are compounded, they are placed on the bag-making machine. After the debugging of the bag-making machine, you can heat seal the packaging bag material according to the adjusted size, and finally cut the bag according to the adjusted size. BY: Chenggong packaging in Jiangyin, Jiangsu Province: The production process of food packaging bags is: packaging design-copperplate production-layout printing-composite packaging-bag cutting. Mainly divided into these five parts;

1, packaging design: This is to design the layout of food packaging bags according to the requirements of food companies, that is, the pattern of food packaging bags. A good layout of food packaging bags plays a good role in improving the sales of products. After all, the first sight is very important. This pattern is usually designed by food companies and then handed over to the packaging bag manufacturer.

2. Copper plate production: According to the confirmation draft of food packaging bag design, the copper plate required for food packaging printing machine is produced. The version is a cylinder, and it is a complete set, not a single one. The specific size and version number should be determined according to the packaging design in the previous step. One color needs to make a copper plate, and five colors need to make five copper plates-of course, sometimes you can make a * * * version.

3. Typesetting and printing: Install the printed copper plate on the food packaging printing machine, and then print according to the first layer material confirmed by the food company, because a food packaging bag usually consists of three layers of materials. And printing only needs to print one layer of surface. The printed renderings are no different from the design drawings. Dongguan Yuli packaging adopts nine-color automatic computer-controlled printing machine. The printing effect can be comparable to that of posters.

4. Compounding: Compounding means bonding two materials together and sticking the ink surface between two layers of materials, such as pa (nylon) /pe (reinforced), where nylon is the first layer of printing material, pe (reinforced) is the second layer of composite material, and sometimes there are third and fourth layers of materials. If you make an ordinary aluminum foil bag (opp optical film /al aluminum foil /pe reinforced), you need a third layer. Note: It is usually necessary to combine the materials printed before checking in the previous step, 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 materials are combined, they are put on the bag-making machine. After debugging the bag-making machine, the food packaging bag materials can be heat-sealed according to the adjusted size, and finally the bags can be cut according to the adjusted size. Fully automatic from bunching to cutting. Yuli packaging has a fully automatic bag-making machine. Higher efficiency and better quality.

Well, this is the specific food packaging process-