High-Temperature Resistance Tests For Plastic bags

Steam Sterilization (Autoclave) Test

• Temperature: 115–135°C (usually 121°C or 125°C)
• Duration: 15–45 minutes, depending on product requirement
• Purpose: Ensure the laminate withstands steam without delamination, bubbling, or leakage.

🔸 Hot-Fill Test

• Filling temperature: 85–125°C
• Test checks if bags maintain structure during hot filling and cooling.
• Pressure & Seal Integrity Tests
• 🔸 Burst Strength Test
• Measures internal pressure required to rupture the pouch.
• Ensures strong mechanical resistance of the laminate.
• 🔸 Seal Strength Test
• Evaluates the peeling strength of sealing seams.
• Ensures consistent sealing across the pouch.
• 🔸 Vacuum Leak Test / Water Bath Leak Test
• Fill the pouch, apply vacuum pressure under water.
• Purpose: Identify pinholes, improper sealing, or micro-leaks.
• 3. Lamination Bond Strength Tests
• Evaluates adhesive bonding between film layers.
• Ensures no delamination during sterilization or retort processing.