NICB Products

Not what we make, but what we make possible

UNBLEACHED KRAFT LINER

Grade Code KL30HP KL33 KL35HP KL42 KL45HP KL56HP
Nominal Basis Weight (lb/MSF) 30 33 35 42 45 56
Conditioned Weight (lb/MSF)
Target 30.0 33.0 35.0 42.0 45.0 56.0
Minimum (-5%) 28.5 31.4 33.2 39.9 42.8 53.2
Moisture – (%)
Target 7.5 7.5 7.5 7.8 7.8 7.8
Minimum 6.0 6.0 6.0 6.3 6.3 6.3
Maximum 9.9 9.0 9.0 9.3 9.3 9.3
STFI – (lb/in)
Target 16.5 15.0 20.0 21.5 23.7 31.0
Minimum 15.5 18.4 22.3 28.4
Mullen – (lb/in2)
Target 70 80 85 105 105 125
Minimum 72 95
Moisture Target: 7.5% + 1.5% all liner grades under 42 lb/MSF and 7.8 + 15% for all grades 42lb/MSF and heavier
Basis Weight Expected basis weight is nominal + 1lb/msf. For transition individual roll variation should be no greater than + 1%
Sizing 2 Minute Cobb values for all liner grades
Slide Angle Cull below 18 degrees
Finish Sheffield Smoothness, Target <360
Air Permeability Gurley Porosity, Range 15-75
Internal Bond Scott Bond, cull <75
Roll Hardness Target = 40; minimum = 25; range = 15
Notes:
1. “Minimum” is guaranteed level, target is desired level
2. “Nominal use” designation is in reference to Rule 41/Item 222/ASTM
D4727/ASTM D5118
Effective Date: July 16, 2014

CORRUGATING MEDIUM

Grade Code 23ME 26ME 30ME 33ME 33MF 36ME 36MF 40ME 45ME
Nominal Basis Weight (lb/MSF) 23 26 30 33 33 36 36 40 46
Conditioned Weight (lb/MSF)
Target 23 26 30 33 33 36 36 40 45
Minimum (-5%) 21.9 24.7 28.5 31.4 31.4 34.2 34.2 38 42.8
Moisture – (%)
Target 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5
Minimum 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5
Maximum 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5
Concora – (lb)
Target 50 55 60 67 72 72 78 77 82
Minimum 45 50 55 60 65 65 71 70 75
STFI (lb/in)
Target 11 12.3 15.2 17 17.2 18.5 20.3 21 22.5
Minimum 10.4 11.3 13.9 15 15.8 16.5 17 18.4 21
Moisture Target: 9.5% + 2.0% all medium grades
Basis Weight Expected basis weight is nominal + 1 lb/MSF. For transition individual roll variation should be no greater than + 1%.
Slide Angle Cull below 15 degrees
Air Permeability Gurley Porosity, Range 10-75
Roll Hardness Target = 40; minimum = 25; range = 15
Notes:
1. “Minimum” is guaranteed level, target is desired level
2. There is no wettability limit or target
Effective Date: July 16, 2014