The benefits of using Multi Layer LD extrusion for flexible plastic packaging
Flexible plastic packaging is one of the most widely used and versatile packaging solutions in the world. It can be used to pack a variety of products, such as food, beverages, cosmetics, pharmaceuticals, and more. Flexible plastic packaging offers many benefits, such as convenience, durability, protection, and aesthetics.
However, not all flexible plastic packaging is created equal. There are different techniques and technologies that can affect the performance and quality of the packaging films. One of the most advanced and effective techniques is Multi Layer LD extrusion.
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Enhanced mechanical and thermal resistance of the packaging films
Another advantage of using Multi Layer LD extrusion for flexible plastic packaging is that it can enhance the mechanical and thermal resistance of the packaging films. This means that the films can withstand higher levels of stress, strain, and temperature, without compromising their integrity and functionality.
For example, HDPE is a polymer that has high stiffness and strength, while LDPE has good flexibility and elongation. By coextruding these polymers, the resulting film can have a balanced combination of rigidity and elasticity, which can resist punctures, tears, and cracks. This can improve the durability and reliability of the packaging, especially for products that require high mechanical protection, such as liquids, powders, and granules.
Moreover, Multi Layer LD extrusion can also create packaging films with high thermal resistance, by incorporating polymers that can withstand high or low temperatures, such as PP, PET, or nylon. These polymers can enable the packaging films to endure hot filling, pasteurization, sterilization, freezing, and microwaving, without affecting their barrier properties and sealability. This can expand the range of applications and markets that can use flexible plastic packaging, such as ready-to-eat meals, soups, sauces, and more.
Increased design flexibility and customization of the packaging properties
Another benefit of using Multi Layer LD extrusion for flexible plastic packaging is that it can increase the design flexibility and customization of the packaging properties. This means that the packaging films can be tailored to meet the specific needs and preferences of the product and the consumer, such as appearance, functionality, and convenience.
For example, Multi Layer LD extrusion can create packaging films with different colors, patterns, and effects, by adding pigments, additives, or modifiers to the polymers. This can enhance the aesthetic appeal and brand identity of the packaging, as well as provide information and communication to the consumer, such as freshness indicators, QR codes, or smart labels.
Furthermore, Multi Layer LD extrusion can also create packaging films with different shapes, sizes, and features, by adjusting the coextrusion die, the stretching process, or the post-processing methods. This can improve the functionality and convenience of the packaging, such as resealability, easy opening, spouts, handles, or stand-up pouches.
