Office copy paper
High quality 70g/80g copy a4 copy paper
1.100% wood pulp
2.Smoothness on surface
3.Smart Packing
4.Long time storage of image
A4 COPY PAPER
1. Technical Specifications
Basis Weight | g/m2 | 70 | 75 | 80 |
Caliper | um | 95 | 100 | 105 |
Brightness | % | 100% 108% | ||
Opacity | ≥ | 91 | 92 | 93 |
Cobb | G/m2 | 25 | 27 | 30 |
Smoothness | Average of both sides ≥ | 25s | 25s | 25s |
Difference of both sides ≤ | 15% | 15% | 15% | |
Roughness | ≤Ml/min | 330 | 330 | 330 |
Dirt(0.3-1.5mm2) | Point/m2≤ | 40 | 40 | 40 |
Stiffness | ≥mN | 75 | 90 | 100 |
Moisture content | % | 5.0+/_0.5 | 5.0+/_0.5 | 5.0+/_0.5 |
Tensile Strength | MD (K/mm) | ≥4.5 | ≥4.5 | ≥4.5 |
CD (K/mm) | ≥2.0 | ≥2.0 | ≥2.0 | |
Wax picking | ≥ | 14 | 14 | 14 |
.Paper Sheet Size:
A0:1189mmx841mm
A1: 841mmx594mm
A2: 594mmx420mm
A3: 420mmx297mm a
A4: 210mmx297mm
A5: 210mmx148mm
American Letter size(F4): 216mmx279mm(8-1/2inchx11inch)
Legal size: 216mmx356mm
And A4 size is the most widely used size for office copy paper in the world.
