The eight-sided sealed bag is strong and beautiful, which is often seen in large size food packaging such as cat food and dog food. But compared with other bags, the production cycle of eight edge seal is longer, for which many customers express perplexity. Today, giant packaging for you to analyze the production process of eight edge sealing bags, from the process to see why the cycle is long.
Eight edge seal food packaging bag production process: pattern design - customer satisfaction after signing - plate - printing - peritoneum - curing - bag - inspection - factory.
1. In terms of design, eight side seals are not different from other bags. They all need customers to determine the design scheme and then make a drawing. Generally speaking, the designer can produce the design in one or two days, and the duration of the design depends on the time chosen by the client.
2. Plate making generally requires a process. It usually takes three to five days to publish, and printing, peritoneum, curing and bag making are arranged after publication. Some eight-sided sealed bags need two versions due to their larger specifications and more responsible patterns, which will also increase the production time.
3. Printing. During the printing process, the ink will flow continuously because the ink will condense. Squeegee embedded in ink printing and film printing processes. The squeegees the ink from the protrusion of the plate roller so that the intaglio roller can print. If there is dust on the scraper, it will cause ink pollution. The eight-sided sealed bag has more printed pages.
4. Compound. After the film is printed, the recombination begins. The film produced by our company generally adopts dry and wet compound method, that is, color printing film coated with glue, dry for 2 minutes, and then composite with PE. The composite tension is 5.6kg. The packaging bags used by our company are double-layer composite materials.
5, curing: with glue adhesive film curing. The curing effect is mainly to stick the glue firmly. Curing generally at 50℃ curing 24 hours. In fact, the composite membrane was stored at 50 ° C for 24 hours. If the time and temperature do not meet the requirements, the film complex will not be tight. There are more materials used in the eight-sided sealing bag, and it often takes longer to cure in order to compound tightly. Then check the cured film. Inspection is performed by feeding a print of a standard template into a computer and then passing the cured film through a computer-controlled white screen. In case of nonconformity, a black mark will be pasted directly on the film.
6. The film after inspection should be cut, and the film after cutting is used for bag making. Bag making is directly through the machine automatic film. The edges are automatically sealed and compressed during bag-making.
7. Inspection. Regular packaging bag manufacturers will inspect the packaging bags before leaving the factory, including appearance inspection, performance inspection, size inspection and so on. The appearance includes whether the plastic bag is printed on the plate, whether the color is accurate, whether the bag incision is neat, whether the edge line is neat, whether the easy tearing position is accurate and other items. Measure the thickness of the finished plastic packaging bag through spot check to see if it reaches the agreed thickness with the customer. Plastic packaging bags through the packaging fall experiment, test the plastic packaging bag finished product resistance to fall and pressure, this index is related to the plastic packaging bag is not strong, if there are a large number of unqualified bags, we should check the quality of raw materials, composite process and bag making process and other links.
8, factory.
After reading the production process of eight-sided sealed bags, do you understand the long production cycle? In order to better guarantee the quality, in order to better let the packaging bag for the product service, longer cycle is not so difficult to accept?
