| Parameter | Specification |
|---|---|
| Base Material | Pure wood pulp extending kraft paper, 120-250 g/m² basis weight |
| Auxiliary Materials | Moisture-proof food-grade PE coating, high-strength kraft paper valves |
| Adhesive | Environmentally friendly water-based glue, odorless with no heavy metal residue |
| Manufacturing Process | Fully automated valve bag-making machine, smooth surface, uniform stitching |
| Printing | 1-6 color flexographic printing with environmentally friendly water-based inks |
| Dimension Tolerance | ±5 mm for bag dimensions, ±0.05 mm for thickness, ±1 mm for valve inner diameter |
| Storage Conditions | 15°C-30°C temperature, ≤60% humidity, max stacking height 1.2 meters |
| Shelf Life | 2 years unopened, prompt use recommended after opening |