L.W.C Grey Back Paper - Srithik Paper LLP
L.W.C Grey Back Paper
LWC papers are typically used for heat-set web offset and rotogravure printing of magazines, brochures and catalogues. A hybrid grade known as LWC Hi-Brite provides higher brightness and opacity than MWC.
| SUBSTANCE (GSM) TAPPI T 410 OM - 02 |
CALIPER (MICRONS) TAPPI T 411 OM - 97 |
BULK (CC/GM) | STIFFNESS (TABER) GM. CM TAPPI T 489 OR 99 | ||
|---|---|---|---|---|---|
| MD | CD | GM | |||
| 200 | 250 | 1.25 | 45 | 20 | 30 |
| 210 | 263 | 1.25 | 50 | 22 | 33 |
| 230 | 288 | 1.25 | 60 | 26 | 39 |
| 250 | 315 | 1.26 | 70 | 30 | 46 |
| 260 | 328 | 1.26 | 75 | 32 | 49 |
| 270 | 345 | 1.26 | 87 | 38 | 57 |
| 285 | 359 | 1.26 | 105 | 45 | 69 |
| 296 | 337 | 1.26 | 115 | 50 | 76 |
| 310 | 397 | 1.28 | 125 | 55 | 83 |
| 320 | 410 | 1.28 | 145 | 65 | 97 |
| 330 | 422 | 1.28 | 153 | 66 | 100 |
| 340 | 435 | 1.28 | 161 | 70 | 106 |
| 350 | 448 | 1.28 | 170 | 75 | 113 |
| 360 | 468 | 1.30 | 185 | 80 | 122 |
| 370 | 481 | 1.30 | 202 | 88 | 133 |
| 380 | 494 | 1.30 | 22 | 95 | 145 |
| 400 | 528 | 1.32 | 255 | 110 | 167 |
| 410 | 541 | 1.32 | 265 | 115 | 175 |
| 420 | 555 | 1.32 | 285 | 124 | 188 |
| 430 | 568 | 1.32 | 291 | 127 | 192 |
| 440 | 581 | 1.32 | 298 | 130 | 197 |
| 450 | 594 | 1.32 | 312 | 136 | 206 |
| Tol +-3% | +-5% | +-5% | +-10% | ||
| PARAMETERS | UNIT | TEST PROCEDURE | VALUE |
|---|---|---|---|
| Plybond | FT.LB/1000lN2 | Tappi T - 403 | 80 (Min) |
| Smoothness | ml/min | ISO-8791-2 | 70 (Max) |
| IGT Dry Pick (MV) | m/sec | Tappi T 459 om 99 | 1.0 |
| Brightness (Top) | % | Tappi T - 452 OM 98 | 78 (Min) |
| Gloss at 75o | % | Tappi T - 480 | 40 (Min) |
| Cobb Top | g/m2 | Tappi T - 441 om 98 | 50(Max) |
| Cobb Back | g/m2 | Tappi T - 441 om 98 | 60 (Max) |
| Moisture 200-260 GSM | Tappi T - 412 om 02 | 6.5+-0.5 | |
| 261-350 GSM | % | Tappi T - 412 om 02 | 7.0+-0.5 |
| 351-400 GSM | Tappi T - 412 om 02 | 7.5+-0.5 | |
| Burst Factor | Tappi T - 403 | 15(min) For ≤ 300 GSM | |
| 12(min) For > 300 GSM |
