Now in the market, we can see all kinds of food packaging bags emerging in an endless stream, the main ones are food packaging bags. For ordinary people, they don't know why a food packaging bag needs so many kinds. In fact, in the packaging industry, according to the type of bags, they are also divided into many bags. Today, Best Packaging will take you to understand the types of food packaging bags, so that you can understand and use them with confidence!

Three-side sealed packaging: As the name suggests, three sides are heat-sealed, leaving one side open for the product, which is a common type of food packaging bag. The three-sided pack has two side connectors and a top connector and can be folded or stand upright on a shelf.

Four-sided packaging: After four-sided packaging, the four sides are heat-packed. Usually, the entire packaging film is divided into two halves for relative packaging. The overall heat-sealing and single-bag cutting method is adopted. The production control is aligned on one side to achieve a good packaging effect. The four-sided packaging product is Cubic, well packed.

Stand-up pouch: Stand-up pouch food packaging bag is as easy to understand as the name, it can stand up independently and stand on the shelf. So the effect is better and more beautiful.

Self-supporting zipper bag: self-supporting zipper bag, that is, an opening zipper is added to the top of the package of the self-supporting bag, which is convenient for storage and use, and avoids moisture. This kind of bag has good flexibility, is moisture-proof and waterproof, and is not easy to be damaged.

Octagonal bag: This is a bag type based on a stand-up pouch. Because the bottom is square, it can also stand upright. This bag is more three-dimensional, with three planes: the front, sides and bottom. Compared with stand-up bags, octagonal bags have more printing space and product display, which can better attract customers' attention.

Suction nozzle bag: The nozzle bag is composed of two parts, the product has a better isolation effect and does not leak. The top is an independent suction nozzle, and the bottom is an independent bag. This bag is the choice for packing liquids, powders and other products, such as juices, beverages, milk, soy milk, etc.

Back-seal bag: A back-seal bag is a type of packaging in which the edge of the back of the bag is sealed. These bags have no opening and need to be torn by hand, and are mainly used for douche bags, candies, dairy products, etc.

Special-shaped bags: Special-shaped bags have a variety of shelf appeal and are a popular packaging form in foreign markets. With the improvement of people's quality of life, special-shaped bags have gradually become a means for Chinese commodity manufacturers to improve brand promotion and product selling points.

Automatic packaging roll film: The main advantage of roll film used in the packaging industry is to save the cost of the entire packaging process. Roll film is used in automatic packaging machinery, without any edge sealing by packaging manufacturers, only one-time edge sealing in production is enough. Roll film packaging is fully electric and integrated, which can save manpower and financial resources through mechanical self-made food packaging bags. But it needs to be used with a machine that automatically packs roll film.