Duplex Board Grey Back
Duplex Board Grey Back is a high-quality paperboard used in a variety of packaging applications. Known for its strength and durability, this board features a smooth grey back and a white top, making it ideal for printing and packaging solutions. It is commonly used for folding cartons, retail displays, and other applications where a sturdy, reliable board is essential.
TOP PIGMENT COAT WITH BAR : 10 ± 1 GSM
PRE PIGMENT COAT WITH BAR : 10 ± 1 GSM
SIZE PRESS STARCH
TOP LAYER (RECYCLED WHITE PULP)
UNDER LAYER (RECYCLED WHITE PULP)
FILLER LAYER (RECYCLED MIXED WASTE PULP)
BACK LAYER (RECYCLED SELECTED WASTE PULP)
BACK STARCH COAT : 02 ± 1 GSM
Specifications
| Gsm | Caliper | Bulk | Stiffness (Taber) g-cm Tappi T 489 om 99 | ||
|---|---|---|---|---|---|
| Tappi T 410 om-02 | Tappi T 411 om 97 | (cm3/g) | MD | CD | GM |
| 200 | 230 | 1.15 | 29 | 13 | 19 |
| 230 | 267 | 1.16 | 40 | 18 | 27 |
| 250 | 290 | 1.16 | 55 | 25 | 37 |
| 260 | 307 | 1.18 | 65 | 28 | 43 |
| 285 | 337 | 1.18 | 85 | 38 | 57 |
| 296 | 352 | 1.19 | 100 | 43 | 66 |
| 310 | 372 | 1.20 | 110 | 50 | 74 |
| 320 | 385 | 1.20 | 120 | 52 | 79 |
| 350 | 421 | 1.20 | 150 | 65 | 99 |
| 360 | 432 | 1.20 | 160 | 70 | 106 |
| 400 | 485 | 1.21 | 210 | 91 | 138 |
| 410 | 497 | 1.21 | 225 | 97 | 148 |
| 450 | 545 | 1.21 | 275 | 119 | 181 |
| Tol. : ± 3% | ± 5% | ± 5% | ± 10% | ± 10% | ± 10% |
| Parameters | Unit | Test Procedure | Values |
|---|---|---|---|
| Plybond | (J/m2) | Tappi T 569 pm 00 | 135 (Min) |
| Roughness (PPS) | microns(μ) | Tappi T 555 om 99 | 3.0 (Max) |
| IGT Dry pick (MV) | m/s | Tappi T 514 | 0.7 (Min) |
| Brightness (Top) | (%) | Tappi T 452 om 98 | 76 ( Min) |
| Gloss at 75o | (%) | Tappi T 480 om 92 | 40 (Min) |
| Cobb 60 : T/S | g/m2 | Tappi T 441 om 98 | 50 (Max) |
| B/S | g/m2 | Tappi T 412 om 02 | 60 (Max) |
| Moisture 200/300 Gsm | % | Tappi T 412 om 02 | 6.5 ± 0.5 |
| Moisture 301/500 Gsm | % | Tappi T 807 | 7.5 ± 0.5 |
| Burst Factor | 14 (Min) |