With the improvement of living standards, the rapid pace of society, the extension of product life, especially in the field of food and medicine packaging requirements are getting higher and higher.
How to prevent oxygen and water vapor in the air from entering the packaging? Thereby preventing food and medicine from spoiling and extending shelf life. At the same time, the materials have different characteristics.
We can compare the characteristics of Dry laminated film and Multilayer co-extrusion barrier film as follows:
Price Level
The price level of Dry laminated film is relatively low, while that of Multilayer co-extrusion barrier film is high. This is because co-extruded films typically use more advanced materials and processes to achieve better barrier performance and physical properties, which leads to relatively higher costs.
Bonding Strength
Dry laminated film is susceptible to environmental influences, while Multilayer co-extrusion barrier film is not affected by the environment. Co-extruded films are tightly bonded together through physical means, making their structure more stable and resistant to environmental changes.
Printability
Dry laminated film can be printed internally, while Multilayer co-extrusion barrier film cannot. This may be because the structure and surface characteristics of co-extruded films are not suitable for internal printing, or the printing process is limited on co-extruded films.
Transparency
Dry laminated film has good transparency, while Multilayer co-extrusion barrier film has excellent transparency. Co-extruded films can achieve superior transparency and appearance due to precise control of layer thickness and material selection.
Product Performance
Dry laminated film has high strength, while Multilayer co-extrusion barrier film has good softness. Co-extruded films can achieve better softness and feel through the combination of different materials while maintaining necessary physical properties.
Smell
Dry laminated film has odor issues, while Multilayer co-extrusion barrier film has no odor. Co-extruded films do not have odor issues due to solvent residues because they do not use solvents in the production process.
Environmental Friendliness
Dry laminated film has air pollution issues, while Multilayer co-extrusion barrier film meets environmental requirements. The production process of co-extruded films can achieve zero emission and zero residue of organic solvents, making them more environmentally friendly.
In summary, Multilayer co-extrusion barrier film has advantages in terms of price, environmental stability, transparency, softness, odorlessness, and environmental friendliness, while Dry laminated film is more competitive in cost and can be printed internally. These characteristics make Multilayer co-extrusion barrier film more and more popular in the market.
Resistance to high temperatures, water vapor and oxygen penetration. Multi-layer co-extrusion technology effectively controls costs by integrating the advantages of various materials, allowing for a high degree of customization in the production process. The co-extrusion heads are designed to ensure more constant thickness and consistent speed for each layer, with the thickness of the layers controlled by varying the extruders' output.
