Duplex Board Descriptions
Physical properties | Unit | Grammage | |||||||
200 | 230 | 250 | 300 | 350 | 400 | 450 | |||
Grammage | g/m2 | 193-200 | 225-230 | 243-250 | 293-298 | 342-348 | 392-398 | 442-448 | |
CD Difference of Gram | g | ≤ 10g | ≤ 10g | ≤ 10g | ≤ 12g | ≤ 15g | ≤ 20g | ≤ 20g | |
Moisture Range | % | 6.0-6.5 | 6.0-6.5 | 6.0-7.0 | 6.0-7.5 | 7.0-8.0 | 7.5-8.5 | 8.0-9.0 | |
Thickness | μm | 22.7-24 | 26-27.5 | 29-30.5 | 35.3-37 | 41-43 | 46.5-48.5 | 53-55 | |
Difference of Thickness | μm | 1 | 1 | 1.2 | 1.5 | 2 | 2 | 2 | |
Whiteness | % | ≥78.5 | |||||||
Smoothness | s | ≥ 80 | |||||||
Surface water absorption | Positive | g/m2 | ≤ 50 | ||||||
Back | 40-80 | ||||||||
Stiffness(CD) ≥ | mN.m | 1.2 | 1.5 | 2.2 | 3.2 | 5.5 | 7 | 8.5 | |
Folding resistance ≥ | Time | CD≥5 TD≥8 | |||||||
Brightness(ISO) | % | ≥ 74 | |||||||
Coating | g/m2 | Top coating 10-12 Medium coating 27-30 Primer coating 9-11 Total coating 50-55 | |||||||
Dirt count | pcs/m2 | ≤60 | |||||||
Grade | / | B/A/AA/AAA | |||||||
Paper type | / | By Roll/By Sheets | |||||||
Standard size | MM | 787MM/889MM/1092MM/1194MM Roll/Customized 787*1092MM/889*1194/Customized | |||||||
Roll Diameter | MM | 1250MM | |||||||
Paper tube core | Inch | 3 Inches/6 Inches | |||||||
Packaging | / | The whole pallet is wrapped by waterproof film with Paper Corner protector and fixed by two piecess teel strip | |||||||
Shipment | / | By sea/By Air |
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