What Is a Stand-Up Bag?
Stand-up bags, also called freestanding bags, are so-called hand-cut plastic bags with a bottom gusset.
The bags are made of thicker material, and as the name “stand” implies, the bags themselves can stand on their own and be managed when filled with contents.
Because they are polyethylene bags, they are highly transparent, making it possible to see the contents at a glance without having to open the bag.
Some bags are equipped with zippers, making them even more functional.
Uses of Stand-Up Bags
Stand-up bags are often used for food applications.
They are often used for displaying produce such as mini-tomatoes and strawberries, and for selling detergents and cosmetics.
Zippered bags are also often used to put cookies and other snacks, tea leaves, and other items that move frequently in and out of the bags.
Some types are also used to hold liquids such as health food jellies, juices, and medicines.
Principle of Stand-Up Bags
Stand-up bags stand on their own because they have a gusset at the bottom.
Stand-up bags with a zipper for opening have a notch at the top of the pack, which makes it easy for consumers to open the pack by hand at the top of the zipper.
In addition, the bag is cut at the top of the zipper, allowing the bag to be resealed with the zipper after opening.
Other Types of Stand-Up Bags
1. Flat Bags
There is another similar type of bag called a flat bag. It is flat and there are no gussets on the sides, so it does not stand up on its own and is not suitable for thick raw materials.
However, these bags have the advantage of being less bulky.
2. Gusset Bags
Gusset bags are flat bags with gussets on the sides. They can hold thicker raw materials than flat bags.
3. Three-Side-Seal Bags
Three-side-seal bags are made by heat-sealing the top and sides of the bag at the time of production.
4. Square Bottom Bags
Square bottom bags have a gusseted, square bottom and can hold a large amount of raw materials.