What Are The Types Of Packaging Bags?

Bag making machine is a machine used to make various types of packaging bags, and plays an important role in the packaging and packaging industry. Bag making machines are usually able to automatically insert, seal and cut plastic film or paper, thus providing convenience and flexibility for enterprises to develop and produce efficient packaging.

There are many types of packaging bags on the market, which are dazzling. Among the complicated packaging bags, we can initially divide them into three-side sealed packaging bags, four-side sealed packaging bags, eight-side sealed packaging bags, middle sealed packaging bags, self-supporting bags and other basic bag types according to the structure of the bag. After adding different functional accessories, there are bag types with outstanding functional characteristics such as zipper bags and spout bags.

 

1. Three-side sealed bags

Three-side sealed packaging bags are the most common type of packaging bags. The bags received by customers are sealed on three sides, and the last side is sealed by the customer after loading. This type of bag can have an easy-to-tear opening or a zipper self-sealing opening to meet more personalized needs.

Three-side sealed packaging bags are common in various condiment packaging bags, such as chicken essence, monosodium glutamate, etc. Some snack products will also choose three-side sealed packaging bags.

Compared with other bag types, the cost of three-side sealed packaging bags will be lower. For price-sensitive products, this type of packaging can be used to control production costs and increase product profits.

 

2. Four-side sealed bags

Four-side sealed bags are commonly seen in bread bags. They have folds on the left and right sides, and the space is larger than that of three-side sealed bags. They can hold more products, and the overall shape is more three-dimensional, which is more upscale than three-side sealed bags. Some nut products and grain products also use this type of bag.

 

3. Eight-side sealed bags

Eight-side sealed bags are more three-dimensional than four-side sealed bags. In addition to the folds on the left and right sides, the bottom is also folded. After filling the product, the bottom can be flattened to achieve a self-standing effect, so as to better display the product. This type of bag is more common in nut snack products and is the best choice to improve the grade of the product.

 

4. Stand-up bags

Also a bag that can achieve a self-standing effect, unlike the eight-side sealed bag, the stand-up bag adds a separate oval bottom at the bottom. After filling the product, the bottom is fully stretched out to achieve a self-standing effect. The display effect of this kind of self-supporting bag is similar to that of the eight-side seal, but the overall space is slightly insufficient, and the three-dimensional effect is relatively weaker. However, the cost is lower than that of the eight-side seal, which is more suitable for friends who need to improve the grade of products but want to control costs.

 

5. Middle-sealed packaging bag

The middle-sealed packaging bag is a bag type with obvious characteristics. There will be an obvious extra sealing edge in the middle of the back of the bag, so it is also called a back-sealed bag. The most common packaging of this kind of bag is candy, ice cream, dumplings, rice, flour and other products.

Like the three-side seal, the middle-sealed bag has the advantage of lower cost, but unlike the three-side seal, the middle-sealed bag has a wider applicability and higher expansibility than the three-side seal. It can meet some personalized packaging needs under the premise of controlling costs, such as increasing the capacity by folding the left and right sides.

 

6. Zipper bag/sucking spout bag

Zipper bag and sucking spout bag are personalized bag types that are evolved by adding zippers and sucking spouts to the basic bag type. Currently, self-sealing zipper bags are very common and can be seen in various bag types. The more common sucking spout bag is jelly packaging and ketchup packaging. Of course, some bagged beer also uses sucking spout bags.

 

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