white copy paper a4

PHYSICALTEST UNIT SPECIFICATION Grammage g/m2 70 75 80 Thickness µm ≥91 95 101 Density g/cm3 ≥0.72 Roughness WS ml/min. 200 350 200 400 200 400 FS ml/min. 200 350 200 400 200 400 Brightness % ≥92 ≥96 ≥98 ≥102 ≥106 Opacity % ≥82 ≥84 ≥86 Cobb60Data g/m2 ≤30 Tensile MD Kg/15mm 4.5 5 6.2 Strenghth CD Kg/15mm 2 2 2.5 Moisture % 4 7 Waxpicking A ≥14 Usage Office MachineCompatibility 1.Copiers,2.LaserPrinters,3.InkjetPrinting.4.PlainPaperFaxMachines Packing 500sheets/ream,5-10reams/carton. Origin China