Duplex Board with Gray back

Duplex board is widely used in Packing and Printing industrial like:shoe box,food box,cake box, cosmetic packaging ect. Our Duplex board is white/Gray back and White/White back of LWC AND HWC.from 230--450gsm.with the size 1092*787,1194*889mm,610*860mm,31*43"ect.

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features

The surface of paper is evenness, smooth, small expansion rate to ensure good printing effect.
The quality board has excellent printability and converting properties,It is suitable for 4 or 6 color printing.
Outstanding paper stiffness is a strong support for carton laminating and die-cutting.

Application

PRODUCT PARAMETERS

Products：DUPLEX BOARD WHITE/GRAY BACK

Version：GB/T10335.3-2018

Quantity: 2840kgs

Lot No.:202204250202

Sub:250gsm

Grade:A

Item No.	Unit	Specification	Test Result
Basis weight	g/m²	242-260	244
Thickness	μm	285±15	276
Moisture	%	6.5±1.0	7.1
*Stiffness (lateral)≥Stiffness(CD)	mN.m	1.7	2.0
COBB (TOP) 60S	g/m²	≦65	63
COBB (BACK) 60S	g/m²	≦150	123
IGT Blister	m/s	≧0.9	1.11
* Folding strength	times	≧8	10
Brightness	%	≥76（face）	80
(75o) Gloss	%	≥30	36
*Smoothness	S	≧60	74
*Absorption KN	%	25±5	23
Dust 0.3-1.0mm²	individual/m²	≤20	10
Dust >2.0mm²	individual/m²	N	N/A