5 Layer Co-Ex Tubes

Function: The outermost layer provides the structural integrity and durability of the tube. It offers protection against external factors such as physical damage, moisture, and UV radiation. This layer also serves as the primary surface for printing and decoration, allowing for high-quality graphics and branding.

Function: This bonding layer ensures strong adhesion between the outer PE layer and the central barrier layer. It plays a crucial role in maintaining the structural integrity of the tube and preventing delamination, ensuring that the layers stay securely bonded under various conditions.

Function: The central barrier layer is essential for providing excellent protection against gases (such as oxygen), solvents, and other contaminants. EVOH significantly enhances the shelf life and quality of the contents by preventing oxidation and maintaining the freshness of the product.

Function: Similar to the first bonding layer, this layer ensures strong adhesion between the barrier layer (EVOH) and the inner PE layer. It is crucial for the overall stability and durability of the tube, maintaining the multi-layer structure's integrity.

Function: The innermost layer is in direct contact with the product inside the tube. It provides an additional barrier against moisture and chemicals while ensuring compatibility and safety for various formulations, including cosmetics, pharmaceuticals, and food items. This layer is designed to be non-reactive and safe for direct contact with the contents.