OP Polar Bright is uncoated with an extra high blue shade brightness and good opacity. Its high brightness is guaranteed by the inclusion of OBA. Lower bulk&high stiffness provide an unique properties giving excellent results in runnability and folding of the paper.
Can be used for multicolour print too. This grade can be provided in tailor-made applications in the respect of bulk according customer needs. Thinpolar bright is the ultimate for any inserts and leaflets.
Offset printing
Parameter | Unit | Standard | OPB37 | OPB40 | OPB45 | OPB50 | OPB60 |
Substance | g/m² | ISO 536 | 37 | 40 | 45 | 50 | 60 |
Basis weight | lbs | 25"x38"/500 | 25 | 27 | 30,5 | 34 | 40,5 |
Caliper | µm | ISO 534 | 44,5 | 48 | 54 | 60 | 72 |
UV Brightness (D65) | % | ISO 2470-2 | 104 | 104 | 104 | 104 | 104 |
CIE Whiteness | ISO 11475 | 130 | 130 | 130 | 130 | 130 | |
Opacity | % | ISO 2471 | 79 | 81 | 82 | 84 | 87 |
Roughness | ml/min | ISO 8791-2 | <250 | <250 | <250 | <250 | <250 |
Tear resistence CD | mN | ISO 1974 | 180 | 200 | 220 | 240 | 280 |
Tensile strength | kN/m | ISO 1924-2 | 2,0 | 2,1 | 2,4 | 2,7 | 3,2 |
Luminescence | Laetus | 10 | 10 | 10 | 10 | 10 |