| Parameter | Specifications |
|---|---|
| Material Requirements | Virgin wood pulp kraft paper, 70-120 GSM, free from damage, odors, or impurities |
| Dimensional Tolerance | Length ±5mm, Width ±5mm, Fold edge width ±5mm, Valve dimensions ±5mm |
| Printing Standards | Clear text and patterns, consistent colors, strong adhesion, no shadows or missing prints |
| Appearance Standards | Smooth surface, no wrinkles, damage, or stains. Properly aligned and sealed valve mouth |
| Industry | Materials | Key Requirements |
|---|---|---|
| Chemical Industry | Carbon black, plastic masterbatch, pigments, dyes, chemical fertilizers | Moisture resistance, anti-static, corrosion resistance, dust-free filling |
| Building Materials | Cement, dry powder mortar, gypsum powder, insulation materials | High load-bearing, drop resistance, powder leak prevention, stackability |
| Food and Feed | Flour, starch, sugar, salt, feed, grains, food additives | High cleanliness, light avoidance, moisture resistance, odor-free |
| Minerals and Energy | Mineral powder, coal powder, metal powder, activated carbon | Dust prevention, moisture resistance, high strength, leak-proof |
| Other Industries | Pharmaceutical intermediates, daily chemical powders, refractory materials | 25-50 kg granular or powder material packaging |