PP Vs. PET Synthetic Paper—Which Is The Optimal Choice for Your Labeling Requirements?

1. The Challenge: Not All "Plastic Papers" Are Equal 

In the field of labeling, selecting an inappropriate substrate can result in significant operational failures—such as labels detaching in freezer environments or deforming during high-temperature printing processes. At Lizheng, we recognize that performance reliability is paramount. Whether the priority lies in durability, print fidelity, or cost efficiency, the decision between polypropylene (PP) and polyester (PET) represents a critical first step.

2. In-Depth Analysis: A Performance Comparison by Lizheng  

To support informed decision-making, we have conducted a comprehensive evaluation of the key characteristics distinguishing our LZ-PP and LZ-PET product lines:  

3. When to Select Lizheng PP: The Solution for Flexibility  

Lizheng PP is the preferred choice for applications involving repeated flexing or curved surfaces.  

Squeeze Test Performance: Particularly suitable for personal care products such as shampoo bottles, where the material conforms seamlessly to container movement without wrinkling or lifting at the edges.  

Sustainability Advantage: Our PP-based synthetic paper is 100% recyclable, making it ideal for brands committed to environmental sustainability.

4. When to Select Lizheng PET: The Solution for Durability  

For demanding environments where long-term resilience is essential, Lizheng PET offers unmatched performance.  

Thermal Stability: Unlike PP, which may shrink under elevated temperatures, Lizheng PET maintains dimensional integrity, making it the optimal choice for electronics, automotive components, and laser-printed labels.  

Mechanical and Chemical Resistance: Highly resistant to tearing and exposure to aggressive chemicals, ensuring that QR codes safety instructions and other critical information remain legible over extended periods.

5. Lizheng Expert Recommendation: Practical Selection Guidelines  

Choose PP when: A cost-effective, waterproof labeling solution is required for consumer goods or cold-chain packaging applications.  

Choose PET when: Labels are exposed to high-temperature processing equipment, outdoor conditions, or high-speed laser printing systems.

6. Proven Success in Real-World Applications  

At Lizheng, we do not merely supply materials—we deliver engineered labeling solutions tailored to specific application needs.  

Rather than relying on assumptions, validate performance through testing.