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SIZING MEDIUM is coated a liquid that helps to improve the water-resistance of the paper whilst also allowing inks and pigments to sit on the surface of the fibres instead of being absorbed. Sizing also affects abrasiveness, creasibility, finish, printability, smoothness and surface bond strength.
Basic weight (g/m2) ± 4% |
Bursting strength (kgf/cm2) |
Ring crush CD (kgf/6 inch) |
---|---|---|
100 | 2.5-2.9 | 9.0-11.5 |
105 | 2.7-3.0 | 10.0-12.5 |
112 | 2.8-3.2 | 11.0-13.5 |
125 | 3.0-3.4 | 12.0-14.5 |
150 | 3.4-3.8 | 19.0-23.0 |
185 | 4.0-4.4 | 25.0-28.0 |
Moisture content: 7-9%
Water absorption Cobb 60: 60 ± 10g/m2
Relative humidity: 60 ± 5%
Temperature: 25 ± 30C