Item

A4 copy paper 

Specification 

 21*29.7  a4 copy paper in pallet

Weight

80GSM

Item 

Whiteness 

Roughness 

Thickness 

Opacity 

Brightness 

A grade 

CIE 167

140 ml/min

110um

95%

104%-102%

B grade 

CIE 167

140 ml/min

110um

97%

100%-98%

C grade 

CIE 167

140 ml/min

110um

98%

96%-94%

Quality 

100% virgin wood pulp 

Test Report 

Good in quality 

Item

copy  paper

Material

100 % virgin wood pulp

Size

A4: 210*297mm

Base Weight

80gsm,75gsm,70gsm

Whiteness

102%-104%,natural white

Packing

500 sheets per ream, 5 reams per carton(box)

Load Qty(20ft)

GSM

A4

80gsm

8000 reams

75gsm

8200 reams

70gsm

8400 reams

Key performance

No jam in photocopy machine

No double feed

Stay flat after copying

Leave no dust in the copy-machine

Nice appearance-white and clean

Nice touch-smooth and bulky

No see through-print both sides

Been developed for: Photocopy Machines, Laser Printers, Ink-jet Printers, Fax Machines

Basis Weight 

g/m2

70

75

80

Caliper

um

95

100

105

Brightness

%

100%            104%

Opacity 

≥

91

92

93

Cobb

G/m2

25

27

30

Smoothness

Average of both sides ≥

25s

25s

25s

Difference of both sides ≤

15%

15%

15%

Roughness 

≤Ml/min

330

330

330

Dirt(0.3-1.5mm2)

Point/m2≤

40

40

40

Stiffness

≥mN

75

90

100

Moisture content

%

5.0+/_0.5

5.0+/_0.5

5.0+/_0.5

Tensile Strength

MD  (K/mm)

≥4.5

≥4.5

≥4.5

CD  (K/mm)

≥2.0

≥2.0

≥2.0

Wax picking 

≥

14

14

14