Duplex Board - Grey Back HWC
  • Specification Sheet (GREY BACK - CPB) - M/C Deckle Width : 248-258 cm

    Substance (GSM)
    Tappi T 410 om-02

    Caliper (Microns)
    Tappi T 411 om 97

    Bulk (cc/gm)

    Stiffness (Taber) gm-cm Tappi T489 om-99

    MD

    CD

    GM

    230 283 1.23 48 20 31
    250 310 1.24 60 25 39
    260 322 1.24 65 28 43
    270 335 1.24 72 31 47
    285 359 1.26 92 40 61
    296 379 1.28 105 45 69
    310 397 1.28 120 52 79
    320 410 1.28 130 56 85
    330 422 1.28 135 58 88
    340 435 1.28 140 60 92
    350 448 1.28 155 66 101
    360 461 1.28 180 78 118
    370 474 1.28 185 80 122
    380 486 1.28 195 85 129
    400 512 1.28 230 105 155
    410 525 1.28 235 108 159
    420 538 1.28 250 115 170
    450 576 1.28 300 140 205
    500 640 1.28 360 165 244

    TOLERANCE : ± 3 %

    CALIPER : ±  5 %

    BULK: ±  5 %

    STIFFNESS: ± 10%

    PARAMETER

    UNIT

    TEST PROCEDURE

    VALUE

    Plybond  (J/m2) Tappi T 569 pm 00   135 (Min)
    Roughness (PPS) microns(μ) Tappi T 555 om 99 2.8 (Max)
    IGT Dry pick (MV)   m/s Tappi T 514 1.0 (Min)
    Brightness (Top) (%) Tappi T 452 om 98 77 ( Min)
    Gloss at 75o  (%) Tappi T 480 om 92 40 (Min)
    Cobb 60 :  T/S g/m2 Tappi T441 om 98 50 (Max)
                     B/S g/m2   60 (Max)
    Moisture 200/300 GSM % Tappi T412 om 02 6.5 ± 0.5
    Moisture 301/500 GSM Tappi T412 om 02 7.5 ± 0.5
    Burst Factor   Tappi T807 15 (Min)
  • Board Construction

    • TOP PIGMENT COAT WITH BLADE 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 PAPER)
    • BACK LAYER (RECYCLED SELECTED WASTE PAPER)
    • BACK STARCH COAT : 02 ± 1 GSM
  • Features

    • Product Certified by CFTRI, Under USFDA 176.170 Test method
    • Low levels of heavy metals (Each <20PPM)
    • Suitable for high quality offset and gravure printing.
    • Suitable for high quality embossing, foil stamping.
    • Used in multi purpose post print applications.
    • Board for Blister pack, polycoatings produced on demand.
The above tests are done as per TAPPI’s standard procedures, details of which will be supplied on request.
NOTE :-
  • Tolerances are based upon 95% confidence limit on single mill measurements if random samples.
  • Specifications are subject to changes without any prior notice.

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