High stiffness duplex board for Express envelopes

Duplex board 1.Grammage: 250-500gsm 2. Usage:for packing industry 3.Regular Size: sheet or roll

Duplex board

1.Name: Duplex board with grey back/white back

2.Grammage: 250-500gsm

3.Usage:for packing industry

4.Regular Size: 787*1092mm,889*1194mm,700*1000mm and we can produce according to your requirements

5. Regular Packing: on pallets

6. Samples: Free

1	Substance		g/m2	250
2	Substance control		g/m2	±8
3.	Thickness		um	295±10
4	Thickness difference control		%	4.0
5	Surface absorbing weight	Top side	g/m2	50
		Wire side	g/m2	120
6	Gloss weight		%	≥35
7	Stiffness		mN.m	2.30
8	Dirt (0.3-1.5 mm2) >1.5mm2 Black (0.3-1.5 mm2)		Point/m2	≤20
				0
				≤4
9	Moisture content		%	6.5±1
10	Brightness	Top side	%	80-85
		Wire side	%	78

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High stiffness duplex board for Express envelopes