. Ivory Board Technical Specification:
Caliper | PT ±0.2 | 9.7 | 10.6 | 12 | 13.2 | 14 | 16.1 | 18 | 21.3 |
Grammage | g/m2 | 190 | 210 | 230 | 250 | 270 | 300 | 350 | 400 |
Caliper | um | 245 | 270 | 300 | 335 | 356 | 410 | 480 | 540 |
Bulk | cm3/g | 1.29 | 1.29 | 1.33 | 1.34 | 1.32 | 1.37 | 1.37 | 1.35 |
Brightness top/bottom | % | 89 / 86 | 89 / 86 | 89 / 86 | 89/ 86 | 89 / 86 | 89 / 86 | 89/ 86 | 89 / 86 |
Water Absorption T/C/B | g/m2 | ≤50/≤100/≤50 | ≤50/≤100/≤50 | ≤50/≤100/≤50 | ≤50/≤100/≤50 | ≤50/≤100/≤50 | ≤50/≤100/≤50 | ≤50/≤100/≤50 | ≤50/≤100/≤50 |
ply bond | J/m2 | ≥120 | ≥120 | ≥120 | ≥120 | ≥120 | ≥120 | ≥120 | ≥120 |
Gloss | % | ≥42 | ≥42 | ≥42 | ≥42 | ≥42 | ≥42 | ≥42 | ≥42 |
Roughness PPS | um | ≤1.7 | ≤1.7 | ≤1.7 | ≤1.7 | ≤1.7 | ≤1.7 | ≤1.7 | ≤1.7 |
Stiffness | mN•m | >3.5/1.8 | >4.5/2.6 | >6.5/3.2 | >8.0/4.2 | >11/5.9 | >14/7.5 | >22/10.5 | >30/14.8 |
Printing Surface strength/IGT | m/s | ≥1.8 | ≥1.8 | ≥1.8 | ≥1.8 | ≥1.8 | ≥2.0 | ≥2.0 | ≥2.0 |
Ink absorption / K&N | % | 20±3 | 20±3 | 20±3 | 20±3 | 20±3 | 20±3 | 20±3 | 20±3 |
Moisture | % | 8.0±0.3 | 8.0±0.3 | 8.0±0.3 | 8.0±0.3 | 8.0±0.3 | 8.3±0.3 | 8.3±0.3 | 8.3±0.3 |
Folding Times | ≥28 | ≥28 | ≥28 | ≥28 | ≥28 | ≥28 | ≥28 | ≥28 | |
Shade T/B | a | 1.5/1.2 | 1.5/1.2 | 1.5/1.2 | 1.5/1.2 | 1.5/1.2 | 1.5/1.2 | 1.5/1.2 | 1.5/1.2 |
b | -4.5±0.5/-1.2±0.5 | -4.5/-1.2 | -4.5/-1.2 | -4.5/-1.2 | -4.5/-1.2 | -4.5/-1.2 | -4.5/-1.2 | -4.5/-1.2 | |
Curl | mm | -5~15 | -5~15 | -5~15 | -5~15 | -5~15 | -5~15 | -5~15 | -5~15 |