Substance

NCR Roll

Substance (gsm)

CB white or tinted: 48,50,52,55,60

CFB white or tinted:50,52,55

CF white or tinted: 48,50,52,55,60

*Tinted: green, pink, yellow, blue

Basis Weight variation

±5%;

Whiteness

≥85%

Opacity

≥60%

Paper Density

0.67~0.83 g/m³

Caliper Variation(CD)

≤6um for basis weights 50g/m² or less;

≤8um for basis weights more than 50g/m²

Smoothness(CF both sides)

≥40s

Imaging Sensitivity

E≥86%;D≥86%(3 ply prints);

Chromatic deviation

≤2.0%(coated side for tinted grades)

Curls

≤12mm

Surface strength(medium viscosity printing ink)

≥0.4m/s (printing side);

Light resistance(residual E after 144hrs)  

≥50%;

Friction resistance(E)

≤6%;

TSI(MD)

≥55N.m/g;

Surface PH

6.0~9.0

Moisture on delivery

≤8.0% CB and CFB in sheets;

6.0%~7.5% CB and CFB in rolls;

6.0%~8.0% CF;

Regular sizes

Sheets: as customers requirement

Rolls: 242~700mm, length=6,000-12,000m

Export Packing

Sheets: wrapped inside with thin plastic film against moisture, and outside with carton or craft paper coated by PE on pallets

Rolls:  Inside wrapped with 5mm-thick pearl cotton and outside with colored streched film.