Basisweight

g/m²

250

300

350

400

450

Basisweight worp

%

+0.5,-0.3

Transverse quantitative difference

%

4.0

Moisture

%

6.0±1.5

7.0±1.5

7.5±1.5

Thickness

um

315±10

370±10

440±15

500±15

560±20

Transverse thickness difference ≦

%

4.0

Surface roughness≦

um

2.0

Transverse stiffness ≧

mN.m

3.3

4.8

7.5

10.0

13.5

Foldness≧

time

20.0

Water imbibition(cobb,60s)≦

Obverse

g/m²

45

Reverse

100

Dustness

0.3-1.5mm²

n/m²

≦12

1.0-1.5mm²

1

﹥1.5mm²

none

Brightness

%

85

Surface glossiness≧

%

40

Printing ink absorbency

%

25±5

Intension≧

m/s

1.4

Burst

≧kmpa/g

1.8