The simplest version is three side sealed pouches, or 3SS pouches. They are also called pillow pouches. A seal, ranging from 1/4″ to 1/2″, is produced by heat to weld the edges together. There are many features that can be added to a basic pouch. Read More >>

A package that is made with a heat sealed seam in the center of the back side is a bag. Think of snack food packaging, like that commonly used for potato chips. Read More >>