What Is Stand up Pouch

A stand-up pouch, also known as a Doypack (trademark associated with a pouch), is a flexible package capable of standing upright on its base for display, storage and use. It is a type of plastic bag, but it also sometimes has the properties of a plastic bottle. Doypacks are typically used in powdered or ready-to-drink beverages. The bottom of the stand-up pouch is padded for support for display or use.

They can be filled aseptically or on conventional packaging lines.

History

Leon and Louis Doyen did the early work on the stand-up pouch in France. Louis Doyen was president of the Thimonnier Company, which traded under the trade name "Doypack" (from DOY en "PACK ageing").

In the 1980s and 1990s, the development of materials, design choices and equipment increased. Currently, it is a very widely used form of packaging.

Construction

Flexible pouches are usually made of multiple layers of materials: various plastic films, paper, foil, etc. The pouches are often printed with high-impact graphics or sometimes have labels. These materials must have special heat sealing properties to be converted into pouches.

The most common bags have a bottom gusset to create a "W" shape that opens to allow for a flat bottom. Sometimes side gussets are also used. Several design options are offered.

 Stand-up bags usually have two designs: pouring spouts and foldable zippers. The difference between them lies in their functions and uses.

 1. Pour spout: The pour spout design of the stand-up bag is suitable for situations where products need to be poured quickly, such as powdered or granular products. Pour spouts often have a disposable seal that allows users to easily pour the product out and then reseal it to keep the product fresh.

 2. Foldable zipper chain: The foldable zipper chain design of the stand-up bag is suitable for situations that need to be opened and closed multiple times, such as liquid or granular products. The foldable zipper chain can be opened and closed repeatedly, making it convenient for users to access products multiple times, and can effectively maintain the freshness and quality of products.

 Therefore, the design of the pouring spout and foldable zipper chain varies according to the characteristics of the product and the needs of the user. Choosing a stand-up bag design suitable for the product can provide a better use experience and freshness preservation effect.