NanBei Paper

Grades:

Carbonless Copy Paper, Black Images

Regular basis weights (gsm):

45, 50, 55, 80 CB white or tinted;
47, 50, 55, 80 CF white or tinted;
50, 52 CFB white or tinted;

Basis Weight variation:

±5%;

Caliper Variation (CD):

≤5μm for basis weights 50g/m2 or less;
≤7μm for basis weights greater than 50g/m2

Paper Density:

0.70-0.85 g/cm3;

Opacity

≥65%;

Smoothness (CF both sides):

≥80 s;

Whiteness:

≥87% with OBA;

Chromatic deviation:

≤2.0% (coated side for tinted grades);

Curls:

≤12 mm

Optical densityΔD (5min):

≥0.30 (3 ply prints)

Imaging Sensitivity:

ΔE≥88%;ΔD≥88% (3 ply prints);

Surface strength (medium viscosity printing ink):

≥0.5 m/s (printing side);

Light resistance (residual ΔE after 144 hrs):

≥50%;

Friction resistance (ΔE):

≤5%;

TSI (MD):

≥60 N.m/g;

Surface PH:

6.0-9.0

Moisture on delivery:

≤8.0% CB and CFB sheets;
6.0%-7.5 % CB and CFB rolls;
5.0%-7.5% CF;

Regular roll sizes:

120-600mm, paper length = 6,000 m;

Regular sheet sizes:

787*1092, 889*1194, 890*600, 880*615, 700*1000;

Export Packing:

Wrapped inside with thin plastic film against moisture, and outside with heavy craft paper for sheets, corrugated paperboard for rolls.