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Coated Board Grey Back (CBGB) - HIGH STIFFNESS


Specifications

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SUBSTANCE (GSM) CALIPER (microns) Bulk STIFFNESS-L&W (mN)
Tappi : T - 410 Tappi : T - 411 (cc/gm) Tappi : T - 556
      MD CD GM
230
304
1.32
123
58
84
250
330
1.32
163
73
109
260
343
1.32
175
81
119
270
356
1.32
193
88
130
280
370
1.32
216
97
145
285
376
1.32
226
104
153
290
383
1.32
236
112
163
300
396
1.32
256
123
177
320
432
1.35
318
150
218
330
446
1.35
340
165
237
340
459
1.35
386
183
266
350
473
1.35
403
193
279
Tolerances :        ±3%
±5%
±5%
±15% on GM values only
PARAMETERS UNITS VALUES
COBB 60 (Top side / Back side) 
g/m2
Max 50 / Max 60
SMOOTHNESS - Bendtsen - Tappi : T - 535   
ml/min
50 max
PLYBOND                                Tappi : T - 833
J/m2
150 min
IGT - DRY PICK- (Medium Viscosity)               ISO - 3782
m/sec
150 min
BRIGHTNESS ISO (with UV-100%) ISO - 2469
%
77 min
GLOSS at 75O                         Tappi : T - 480
%
38 min
MOISTURE                               Tappi : T - 412
                                                  230 - 300 GSM
%
7.0 - 8.0
                                                  300 - 400 GSM
7.5 - 8.5
NOTE
  • Tolerances are based upon 95% confidence limit on single mill measurements of random samples.
  • Product should be free from Physical defects
  • Standard Method Reference: TAPPI Test Methods
Specifications updated as on 11/01/07
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