China 100% Uncoated Woodfree Offset Paper for Printing, Find details about China Printing Paper, A4 Paper from 100% Uncoated Woodfree Offset Paper for Printing
Items | Units | Target | Test Standard | |
Basis Weight | g/m2 | 70 | 80 | ISO 536 |
Thickness | µm | 95 | 105 | ISO 534 |
Brightness | % | 110 | ISO 2470 | |
CIE | 165 | GB/T7975 | ||
Opacity ≥ | % | 91 | 93 | ISO 2471 |
Stiffness ≥ | mN | 75 | 100 | ISO 5629 |
Water absorption ≤ | g/m2 | 25-30 | ISO 535 | |
Smoothness (average of both sides ) ≥ | s | 22 | ISO 5627 | |
Stretch CD ≤ | % | 3.5 | ISO 5635 | |
Moisture content | % | 5.5+/-0.5 | ISO 287 |