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Item | Un i t | GradeA | |||||||||||
Ba s i c W eight | g/m2 | 60±1 | 68± 1 | 70±1. 5 | 78±1. 5 | 80±1. 5 | 98±1. 5 | 100±1. 5 | 110±1. 5 | 120±2. 0 | 140±2. 0 | 160±2. 0 | 180±2 .0 |
B rightness | % | 101±1 | |||||||||||
Opacity≥ | % | 88 | 89 | 90 | 92 | 92 | 93 | 94 | 94 | 96 | 97 | 98 | 98 |
T h i ckness D eviation | µm | 73.2 | 83 | 85.4 | 95.2 | 97.6 | 108 | 118 | 120 | 142 | 165 | 190 | 212 |
T h i ckness D i stribution | % | 15 | |||||||||||
C o b b Value ≤ | g/m2 | 35 | |||||||||||
S m oo thn ess | S | 40-50 | 40- 50 | 40-50 | 40-50 | 40-50 | 40-50 | 35-50 | 35-50 | 35-50 | 27-40 | ≥25 | ≥25 |
D i f f e rence of Smoothness of Both Side | % | 10 | |||||||||||
M oi sture | % | 5.5-7.0 | |||||||||||
B reaking L ength(MD) | m | 5.5 | 5.5 | 5.5 | 5 | 5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
D i rt (0.3- 1 . 5 m m 2 ) ≤ | Piece /m2 | 40 | |||||||||||
Printing Surface Strength | m/s | 3 | 3 | 3 | 2.7 | 2.7 | 2.5 | 2.5 | 2.5 | 2.5 | 2 | 2 | 2 |