| Substance (GSM) |
Caliper (μM) |
Bulk (cc/gm) |
Stiffness (Table 15˚) mNm |
||
|---|---|---|---|---|---|
| Tappi T410 |
Tappi T411 |
MD | CD | GM | |
| 230 | 292 | 1.27 | 115 | 56 | 79 |
| 250 | 318 | 1.27 | 160 | 75 | 109 |
| 260 | 333 | 1.28 | 177 | 80 | 119 |
| 270 | 346 | 1.28 | 195 | 86 | 129 |
| 280 | 361 | 1.29 | 216 | 95 | 143 |
| 290 | 380 | 1.31 | 240 | 110 | 162 |
| 300 | 393 | 1.31 | 260 | 120 | 177 |
| 320 | 422 | 1.32 | 320 | 145 | 215 |
| 330 | 439 | 1.33 | 350 | 160 | 236 |
| 340 | 452 | 1.33 | 390 | 170 | 257 |
| 350 | 466 | 1.33 | 418 | 183 | 277 |
| 360 | 482 | 1.34 | 440 | 195 | 293 |
| 370 | 496 | 1.34 | 480 | 210 | 317 |
| 380 | 513 | 1.35 | 508 | 220 | 334 |
| 390 | 527 | 1.35 | 533 | 230 | 350 |
| 400 | 540 | 1.35 | 572 | 247 | 376 |
| 420 | 571 | 1.36 | 690 | 300 | 455 |
| 430 | 585 | 1.36 | 720 | 312 | 474 |
| 450 | 612 | 1.36 | 780 | 335 | 511 |
| 2σ Tol ± 4% |
± 5% | ± 15% on Geometric Mean Values |
|||
| Parameter | Units | Value |
|---|---|---|
| Cobb (60 sec) Top Back |
g/m2 | <40 <50 |
| Roughness - PPS | microns | <2.0 |
| Plybond | J/m2 | >100 |
| IGT - Dry PICK - (Medium Viscosity) |
m/sec | >0.7 |
| Brightness ISO | % | >77 |
| Gloss at 75˚ | % | >42 |
| Moisture ≤300 GSM >300 GSM |
% | 6.5 - 8.0 7.0 - 8.5 |
| Colour: b* (for the blue -yellow colour components) |
Value | -3.5 ( ±0.5 ) |
Note :
1. All properties are according to Mehali Paper Pvt. Ltd, Unit : Dahej Lab measurements
2. Test Climate 23˚C ± 1 & 50% ± 5RH
3. Tolerance are based upon 95% confidence limit of single mill measurement of conditioned random samples
4. All parameters are measured as per relevant Tappi Standards.