Spout couch refers to a type of flexible packaging bag featuring a tube or lip projecting from the container.
It is specifically designed for liquid or semi-liquid products and is becoming an economical and eco-friendly alternative to plastic bottles, tins, and tubs.
They come in different sizes, shapes, and styles, making it easy for you to get one that meets your preference.
Technically, a spout pouch is sealed using specialized sealing machines.
Heat sealing is the last step in packaging a product in this bag.
Normally, two main types of plastics are used for producing spout pouches, and they include thermosetting plastic and thermoplastic.
You can close a barrier pouch made of thermoplastic material repeatedly.
On the other hand, a spout pouch made of thermosetting plastic is permanent.
Here is the main industrial technique of sealing a spout pouch;