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By certification 
Paper Cup Raw Paper Technical Indicators
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Indicator name | Unit | Standard Indicators | |||||||||||
| Quantitative | g/㎡ | 135 | 140 | 150 | 160 | 170 | 190 | 200 | 210 | 230 | 240 | 250 | |
| Quantitative difference | g/㎡ | ±5 | ±7 | ±8 | |||||||||
| Moisture | ﹪ | 7.0±1.0 | |||||||||||
| Thickness | μm | 222 | 230 | 0 | 263 | 279 | 312 | 0 | 345 | 377 | 394 | 410 | |
| Thickness difference | μm | ±10 | ±12 | ||||||||||
| Smoothness | S | ≥2 | |||||||||||
| Transverse folding strength | 次 | ≥20 | |||||||||||
| Ash | % | ≤7.0 | |||||||||||
| BaiDu | ﹪ | ≥77 | |||||||||||
| Surface Absorbed Weight | g/㎡ | ≤45 | |||||||||||
| Stiffness | vertical | mN.m | ≥3.0 | ≥3.0 | ≥4.5 | ≥5.0 | ≥5.2 | ≥8.0 | ≥9.0 | ≥11.5 | ≥12 | ≥18.0 | ≥19.0 |
| horizontal | mN.m | ≥1.2 | ≥1.3 | ≥2.0 | ≥2.0 | ≥2.2 | ≥3.0 | ≥4.0 | ≥5.0 | ≥5.00 | ≥6.0 | ≥7.0 | |
| Penetration | mm | ≤3.0 | |||||||||||
| Warping | mm | just10-opposite10 | |||||||||||
| Dust | ﹙0.3-1.5﹚mm2 | indivual/㎡ | ≤100 | ||||||||||
| ＞1.5mm2-2.5mm2 | ≤5 | ||||||||||||
| ＞2.5mm2 | Not allowed | ||||||||||||
| ≥2.5mm2black dust | |||||||||||||
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