Lab Testing
At Sanraj Polyprinters, quality is not an afterthought - it is built into every stage of packaging. Our in-house performance and testing laboratory ensures that every film, laminate, and pouch meets the highest global standards. From bond strength to barrier properties, every parameter is verified so customers receive packaging that not only looks great but also performs consistently in real-world conditions.
Our Lab Testing Capabilities
- Bond Strength Testing – ensuring laminates hold under pressure and usage.
- Seal Strength Testing – validating pouch durability and consumer safety.
- COF (Coefficient of Friction) Testing – to ensure smooth machinability on high-speed filling lines.
- Barrier Property Testing – measuring oxygen, moisture, and gas transmission rates.
- Adhesion & Print Quality Testing – ensuring inks, coatings, and finishes remain consistent.
- Thickness & GSM Measurement – maintaining accuracy across substrates.
- Performance Simulation – replicating storage, handling, and end-use conditions.
- Tearing Tester – evaluating film resistance to tearing and handling stress.
- Leakage Tanks – verifying seal integrity under water/pressure immersion.
- Vacuum Test – detecting pinholes, weak seals, and micro-leakages.
- Haze Test – measuring clarity, transparency, and optical performance of films.
- Density Testing – confirming material uniformity and compliance with specifications.
- Dart Impact Testing – assessing toughness and resistance to drop/impact damage.
Why It Matters ?
Reliable Packaging
Reduces risk of leaks, damage, or failures during logistics.
Customer Confidence
Every batch tested to meet client and regulatory requirements.
Global Standards
Testing aligned with international benchmarks for flexible packaging.
End-to-End Assurance
From raw material to finished pouch, quality is monitored at every stage