Five Pillars of Mechanical Packaging Defense
How our calibrated quality control laboratory ensures cartons maintain complete structural integrity under high-humidity ocean transit and brutal postal sorting conveyor impacts.
Edge Crush Test (ECT) - TAPPI T 811
The Edge Crush Test measures the exact edgewise compressive force a segment of corrugated board can support before its flutes buckle. While generic packaging suppliers cut costs by using thin recycled fluting that yields 29 to 32 ECT, NaikePack utilizes dense virgin Scandinavian wood pulp fluting with an empirical average of 44.8 lb/in.
- ✓ Test Apparatus: Computerized Servo ECT Crush Gauge
- ✓ Specimen Condition: Preconditioned at 23°C ± 1°C and 50% ± 2% RH (TAPPI T 402)
- ✓ Procurement Benefit: Overcomes side-wall bulging and prevents top carton sinking when stacked 8 layers high in 40HQ containers.
In-House Servo Compression Gauge & TAPPI Verification Bench
BCT Box Compression & Cobb 60 Moisture Defense
Box Compression Test (ASTM D642): Measures the ultimate compressive load of the entire assembled carton under continuous dynamic platen pressure. NaikePack mailers and cartons exceed 520 kgf before 1/2-inch deflection.
Cobb 60 Water Sizing Test (TAPPI T 441): In humid sea containers, unprotected paper absorbs ambient moisture, cutting compression strength by up to 50%. Our water-based aqueous repellent reduces 60-second surface water absorption to < 26 g/m² (standard uncoated board absorbs 65+ g/m²).