410GSM White Top Grey Back Stiff for Stationery Box Production Duplex Board

• Customization: Available
• Material: Paper
• Effect: Packaging Function
• Grade: First Grade
• Folded: Unfolded
• Structure: Surface Layer
• Surface Layer: Duplex Board
• Basis Weight (Grammage): 230 - 500 GSM
• Brightness (Top): 78% - 85%
• Moisture Content: 6.0% - 8.0%
• Cobb Value (Top): 30 - 50G/M²
• Custom Order: Accept
• Coating: Uncoated
• Compatible: Printing Gravure Printing
• Pulping Type: Chemical-Mechanical Pulp
• Specification: 787*1092mm/889*1194mm
• Trademark: xiaolong packing
• Origin: China
• HS Code: 4802620000
• Production Capacity: 3000 Tons/Month
• Package Size: 120.00cm * 80.00cm * 80.00cm
• Package Gross Weight: 1000.000kg

Product Description

Product Description

Duplex Board is a cost-effective, multi-layered paperboard manufactured primarily from recycled waste paper pulp. It typically features a coated white surface (made from bleached chemical pulp and coating pigments) to facilitate high-quality printing, and a grey bottom layer (made from mixed recovered paper). It is the standard material for secondary packaging where rigidity and print quality are required at an economical price point.

Multi-Ply Structure:

 Composed of a coating layer, a top layer (bleached pulp), a middle layer (waste paper/filler), and a bottom layer (grey newsprint /mixed waste).

High Stiffness:

Engineered to provide excellent structural integrity, allowing boxes to hold their shape during stacking and transportation.

Printability:

The top side is coated (clay coating) to ensure a smooth, glossy surface suitable for offset, gravure, and flexographic printing.

Converting Suitability:

Designed to withstand die-cutting, creasing, and gluing processes without delamination .

Parameter	Unit	Typical Range / Specification
Basis Weight (Grammage)	g/m² (gsm)	230 - 500 gsm
Thickness (Caliper)	µm (microns)	280 - 650 µm
Brightness (Top)	% ISO	78% - 85%
Stiffness (CD)	mN·m	3.0 - 25.0
Stiffness (MD)	mN·m	6.0 - 55.0
Moisture Content	%	6.0% - 8.0%
Surface Smoothness	seconds (PPS)	1.0 - 2.5 µm
Cobb Value (Top)	g/m²	30 - 50
Ply Bond	J/m²	> 130
Gloss	%	45% - 55%

Main Products

Company Profile

Dongguan Xiaolong Packaging Industry Co.,LTD, a professional manufacturer, Founded in2012, which isengaged in the production and sales of Gray Cardboard, Duplex board,White Cardboard, Blackcardboard, kraft paper and Paper Box. Our company is located in Houjie Town, Dongguan City, with aplant area of 10000 square meters, we have standard stock of 1000 tons and our annual sales is morethan 20000 tons of paperboard. There are five paper machine production lines for grey boards and fourmachines of Black paper. Also we have automatic production line, automatic flat cutting machine,V-slot machine and so on. All paper products gain SGS, RoHS, MSDS and FSC certifications.In order toimprove our company's core competitiveness,we can produce customized products and provideone-step services for our customers.

Our Services

Certifications

Exhibition

Packaging & Shipping

FAQ

Q: What products can we make?
A:double gray paperboard, whiteboard, black cardboard, white cardboard ,kraft paper and all kinds of printing and packaging paper. 

Q:Does samples available?
A: Yes, we can offer free samples to you to check,only need your Express account to delivery.

Q: Do you have Stock?
A: we have standard stock of 1000 tons.

Q: Does Customize service available?
A: Yes, it's available, we may produce the Special Sizes as Reel & Sheet as your requirement.

Q: What's the payment terms available?
A: For now, we accept T/T payment terms only, and after a few orders we may deal with L/C at sight.

Q: How do you ship the goods?
A: By Sea,By Air or Express delivery, such as TNT, DHL, FedEx, UPS, etc.