| ITEMS | JH-IMAGE | METHOD | ||||
| Basis Weight | g/m² | CB 48, 50, 55 CFB 50 CF 48, 50, 55 |
GB/T 451.2 | IS0537 | ||
| Basis Weight Variation | % | ≤±5 | ||||
| Paper Density | g/cm³ | ≥0.67 | GB/T 451.3 | IS0534 | ||
| Brightness | White Paper | % | ≥85 | GB/T 7974 | IS02470 | |
| Opacity | White Paper | % | ≥60 | GB/T 1543 | ||
| Surface strength(medium viscosity ink) | m/s | ≥0.3 | Internal | |||
| Tensile Strength | MD | N.m/g | ≥50 | GB/T 453 | IS01924 | |
| CD | ≥15 | |||||
| Tear Resistance | CD | mN.m²/g | ≥3.0 | GB/T 455 | IS01974 | |
| MD | ≥2.5 | |||||
| Optical Density △D | CB(3 ply prints) | ≥0.70 | GB 16797 | |||
| CFB(5ply prints) | ≥0.78 | |||||
| CF(5 ply prints) | ≥0.80 | |||||
| Imageing Sensitivity |
△D | % | ≥85 | GB 16797 | ||
| △E | % | ≥80 | ||||
| Light Resistance | 144h | % | ≥60 | GB 16797 | ||
| Friction resistance(△E) | % | ≤5 | ||||
| Curls | mm | ≤15 | GB 16797 | |||
| Moisture on delivery | % | 6.5±2 | GB/T 462 | ISO 287 | ||