What makes stand-up pouches make these a favorable product for food packaging? The answer lies in its body that is made of multiple layers of films laminated together. Here is the break up of the film composition of these pouches.
- Mylar layer: This is the outermost layer of the film that imparts it exceptional strength and gives foods requisite covering from air and moisture. It is also known as polyester layer which comes with a distinctly high melting point. There is additional lamination which holds all the layers together, we can say, it provides a substrate for all layers to hold together.
- Ink layer: It offers the surface for printing graphics. It is inside the Mylar layer. There will be another film that will cover this layer from inside. Thus, graphics ink does not get exposed to food nor is it likely to get faded or distorted due to weather conditions. Thus, all details about the food are visible all the time.
- LLDPE: This is the innermost layer that is in direct contact with the food. The layer is moisture-proof and helps keep the food healthy and eatable. Also, it has low melting point so it melts down to form a proper seal for the food.
Thus, these layers are the region why these package material proves to be better than plastic boxes. Food retains flavor, does not get moist or crumbled for long and has its graininess intact in stand-up pouches made of this bio-degradable material.
Advantages worth considering
Wouldn’t it be better if the food gets longer shelf-life? The users are not forced to consume the food beyond permissible limit in order to finish the items before their expiry. So, it certainly can bring down the monthly food expenses.
Nil exposure to oxygen is another reason that helps increase the shelf-life. The oxygen is sealed completely from entering the food through LLDPE; thus, the quality of food remains intact.