The deadly pain point of wine transportation

The global wine industry lost $2.3 billion due to transportation damage in the year (Vinexpo 2024 report), and the core risks are:

Fragility of glass bottle: the wall thickness of the bottle is less than 4mm, and the breakage rate of 1m drop is up to 35%;

Cork dry crack crisis: when the humidity is less than 50%, the cork stopper contracts and leaks; when the humidity is more than 70%, mold grows;

Temperature fluctuation deterioration: temperature difference> 8℃ accelerates tannin polymerization and increases the rate of taste passivation by 60%.

Polyurethane soft foam (PU Foam) has become the standard packaging solution for Bordeaux chateaux with its multi-physical field protection capabilities.

I. The core role of sponge in red wine packaging

1. Mechanical protection: engineering scheme for zero breakage of wine bottles

Three-dimensional energy absorption: The honeycomb structure (aperture 5-8mm) disperses the impact force through cell collapse, reduces the stress from 12,000N to 800N (ISTA 3B test) from 1.2m drop, and reduces the breakage rate from 32% to 0.4%;

Vibration control: dissipate low frequency vibration of 4-15Hz in road transportation (attenuation rate of 90%), prevent bottle shoulder crack (vibration damage reduced by 87%).

2. Microclimate management systems

Constant temperature barrier: thermal conductivity 0.034 W/m·K (1/4 of EPS), the heating rate of the box is reduced by 70% when the external temperature changes suddenly;

Dynamic humidity control: the composite structure of open hole and closed hole (open hole rate 55%) balances the humidity, maintains the golden range of RH 60%-65%, and the cork swelling rate is stable at ±2%.

3. Pollution prevention and stack optimization

Fragment characteristics: Passed ISO 21904-1 food contact test, no fiber shedding pollution on the label;

Compression reinforcement: 25% compressive hardness supports 6 layers of stacking (pressure ≤18kPa) to avoid the explosion of the bottom wine bottle.