Comparative Analysis: Cross-Linked Shrink Film vs. POF Film

With the continuous advancement of packaging technology, film materials play an increasingly important role in the protection and packaging of various products. As a new type of packaging material, Cross-Linked Shrink Film shows better performance than traditional POF film, especially in high-strength protection and high temperature resistance.

By optimizing the raw material formula and polymerization process, the water-based resin synthesized by cross-linked film has the characteristics of adjustable carboxyl content, small particle size, easy solubility in water, and compatibility with multivalent metal cross-linking agents. This material is also environmentally friendly, odorless, and has active active genes. It can react with double bonds, hydroxyl groups, and other genes under the action of catalysts, making it a key ingredient in products such as equalizing foaming agents, defoaming agents, and water-soluble silicone oils. It also offers remarkable waterproof properties, suitable for applications such as glass, paper, metal, ceramics, and cement.

1. Advantages of Cross-Linked Shrink Film

Higher Shrinkage and Lower Shrinkage Temperature

The shrinkage of this film is usually more than 70% in both directions, while POF film typically shrinks by 60%. This feature allows it to achieve a stronger shrinkage effect at a lower temperature, making it more suitable for packaging needs that require a high shrinkage rate.

Stronger Heat-Sealing Strength and Wider Heat-Sealing Temperature Range

The heat-sealing strength of this film is significantly higher than POF film, and its heat-sealing temperature range is also wider. This means it can achieve efficient sealing under a variety of packaging conditions and is not as easily affected by temperature fluctuations.

Reduce Delamination Problems

This material avoids the delamination issue that POF film is prone to during packaging, especially during long-term storage and transportation, maintaining better integrity.

Lower Shrinkage Rate Variation

After aging treatment and storage, the shrinkage rate variation is much lower than that of POF film, ensuring the stability of packaging performance.

Uniform Thickness

This film exhibits better thickness uniformity than non-cross-linked films, ensuring consistent shrinkage and improved packaging quality.

Stronger Resistance to Mechanical Scratches

The surface hardness and stiffness are enhanced, making the material more resistant to external mechanical scratches, especially suitable for electronic products, household appliances, and other high-protection scenarios.

Higher Impact Resistance

The impact resistance is significantly higher, making it more advantageous in transportation and handling, effectively reducing the risk of breakage.

Special Formula Improves Performance

Through special formula and process control, films with high shrinkage rates and low shrinkage forces can be produced, a characteristic POF film cannot easily achieve. In applications that require gentle shrinkage, this film performs exceptionally well.

Longer Shrinkage Time and Protection

The initial shrinkage temperature is lower, slowing the shrinkage process during commodity packaging, which reduces deformation and damage to packaged items. This feature is particularly beneficial for fragile products.

2. Production Process of Cross-Linked Film

The production process of this film is different from that of ordinary POF film. During its production, PE film undergoes electron beam irradiation for cross-linking, which stabilizes its molecular chain structure and enhances the film's overall performance. Compared with ordinary POF film, this film offers better shrinkage and heat-sealing properties. Its production process is more complex and demanding, making it more valuable than ordinary films.

3. Application Fields of Cross-Linked Film and POF Film

Due to its remarkable performance, this film is widely used in various fields, such as electronic product protection, glass protective film, automotive protective film, and food preservation. It is particularly effective in protecting electronic products like mobile phones, tablets, and computers. Due to its compression and scratch resistance, it is often used in applications with high packaging protection requirements.

4. What is the difference between cross-linked film and POF film? You will understand it when you read on.

Heat Resistance: "Full Score" Performance

Ordinary films can soften, deform, or even decompose at high temperatures, while cross-linked films can maintain impressive performance under high-temperature environments due to their stable molecular structure. For applications such as photovoltaic modules that require high-temperature resistance, this film is clearly more suitable.

Mechanical Strength: Tougher Material

The molecular chain structure of this film is locked, which gives it stronger tensile and tear resistance. When subjected to external forces, it can maintain its form, making it more popular in high-strength protection scenarios like electronic packaging.

Weather Resistance: The "Long-Distance Runner"

Ordinary films age quickly due to exposure to ultraviolet rays, moisture, and oxidation, whereas this film has outstanding weather resistance and can withstand harsh environments for a long time. It is widely used in fields like photovoltaic modules, which require long-term outdoor exposure.

Electrical Insulation Performance

This film's molecular structure provides premier electrical insulation, effectively preventing risks such as electrical leakage or short circuits. In battery packaging and power equipment protection, its electrical insulation properties are increasingly sought after.

Price and Cost-Effectiveness

Although the price of this film is slightly higher than ordinary films, its long-term performance advantages outweigh the price difference. Especially for applications requiring high-strength protection, high-temperature resistance, and weather resistance, it helps reduce long-term maintenance and replacement costs.

Compared to POF films, this material outperforms in heat resistance, mechanical strength, weather resistance, and electrical insulation. Despite its more complex production process and slightly higher cost, its premier performance makes it the preferred material for many high-demand applications. For packaging that requires long-term protection, anti-aging, and high-temperature resistance, this film is undoubtedly the more suitable choice.