C-Opak
C-Opak is a thin, opaque paper specially designed for books with high pagination.
Available in 40, 45, 50 and 60g/m2, it offers enhanced opacity that is exceptional for its thickness.
Its warm colour means greater reading comfort, and its silky feel makes it a pleasure to grip and turn the pages. The innovative C-Opak paper offers excellent performance on high-speed inkjet, rotary and offset presses.
C-Opak is only available for production on request.
110 CIE
Whiteness
0
Roughness
More papers
Virgin fibre -
Print type
Offset - Laser - Inkjet compatible -
Forest Stewardship Council
Papier sans chlorine
The advantages of the paper C-Opak
- Thin paper with enhanced opacity,
- Natural colour for greater reading comfort,
- For high-speed offset and inkjet presses.
| Substance | g/m² | 40 | 45 | 50 | 60 | NF EN ISO 536 |
| Thickness | µm | 50 | 56 | 63 | 75 | NF EN ISO 534 |
| Bulk | cm³/g | 1.25 | 1.25 | 1.25 | 1.25 | NF EN ISO 534 |
| Whiteness | CIE ISO | 110 92 | 110 92 | 110 92 | 110 92 | NF ISO 11475 ISO 2470-2 |
| Lissé Bekk | s | 130 | 130 | 130 | 130 | NF ISO 5627 |
| Absolute humidity | %H₂O | 5.3 | 5.3 | 5.3 | 5.3 | NF EN ISO 20287 |
| Relative humidity | % in the air | 42 | 42 | 42 | 42 | Sword measurement |
| Opacity | % | 82 | 84 | 86 | 89 | NF ISO 2471 |
You can also download or print all of our documents in English and German.
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