White Back Paper - Srithik Paper LLP
White Back Paper
White Back Paper are created with white exterior and interior layers. Coated with bright white pigments, it provides a glossy appearance and the feature also facilitates for better-quality printability. The fabricated end product, as the name suggest, is made out of White Virgin Waste Pulp.
| 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 | |||
| 250 | 288 | 1.17 | 65 | 28 | 43 |
| 260 | 340 | 1.17 | 70 | 30 | 46 |
| 285 | 333 | 1.17 | 90 | 40 | 60 |
| 300 | 346 | 1.22 | 105 | 46 | 69 |
| 310 | 366 | 1.22 | 118 | 52 | 78 |
| 320 | 378 | 1.22 | 125 | 55 | 83 |
| 330 | 389 | 1.22 | 135 | 58 | 88 |
| 340 | 401 | 1.22 | 145 | 63 | 96 |
| 350 | 413 | 1.22 | 155 | 70 | 104 |
| 360 | 425 | 1.22 | 170 | 75 | 113 |
| 370 | 437 | 1.22 | 187 | 81 | 123 |
| 380 | 456 | 1.22 | 205 | 89 | 135 |
| 390 | 468 | 1.22 | 222 | 97 | 147 |
| 400 | 488 | 1.25 | 240 | 110 | 162 |
| 410 | 500 | 1.25 | 250 | 115 | 170 |
| 420 | 517 | 1.25 | 265 | 115 | 175 |
| 430 | 538 | 1.25 | 272 | 118 | 179 |
| 440 | 550 | 1.25 | 280 | 122 | 185 |
| 450 | 563 | 1.25 | 292 | 127 | 193 |
| 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 |
| 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 |
