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The packaging and printing industry is experiencing rapid evolution, underpinned by innovations in duplex board paper that enhance product quality, sustainability, and cost-effectiveness. As a leading manufacturer and exporter in the sector, XINGTAI SHINEWAY PAPER & DECORATION CO.,LTD provides global customers with premium duplex board paper solutions. This comprehensive guide explores the market landscape, technical specifications, applications, and emerging trends of duplex board paper, with trusted references from industry associations (Paper Industry Technical Association) and academic journals (ScienceDirect - Duplex Board).
Duplex board paper is a form of paperboard consisting of two layers, typically with a coated surface, widely favored in the packaging and printing industries. The dual-layer structure provides enhanced strength, printability, and versatility for diverse applications. Duplex board, especially coated duplex board (CDB), is classified into various types such as coated duplex board grey back, coated duplex board with grey back, duplex board grey back, and duplex board white back according to its surface and reverse-side finishing.
Parameter | Standard Range | Unit | Notes |
---|---|---|---|
Grammage (GSM) | 230 – 450 | g/m² | Range for major applications |
Brightness (Top Side) | 60% – 90% | ISO | Higher for coated white backs |
Thickness | 0.23 – 0.65 | mm | Varies by GSM |
Cobb Value (Water Absorption) | 25 – 35 | g/m² | Lower is better for food safety |
Bursting Strength | 150 – 300 | kPa | Depends on GSM & quality |
Board Size | 1092×787, 1194×889, 610×860, 31×43" | mm/inch | Customizable |
Duplex board with Brown Back from XINGTAI SHINEWAY PAPER & DECORATION CO.,LTD represents the cutting edge of duplex board paper manufacturing. It is engineered for superior strength, versatility, and print surface—tailored for the dynamic needs of packaging sectors.
The versatility of duplex board paper makes it integral to modern packaging innovation, expansion into new food-safe and medical packaging, and development of eco-conscious products.
Duplex board paper consists of two layers: a high-brightness, coated surface facing for printing, and a stiffer reverse side (grey, white, or brown), forming a strong, smooth composite sheet.
The required GSM depends on product weight and required rigidity; for heavy-duty packaging, 350-450gsm is recommended, while 230-300gsm suffices for lightweight boxes.
Light-weight coating (LWC) offers a lighter, semi-gloss print finish, while high-weight coating (HWC) provides a thicker, smoother surface for high-quality or moisture-sensitive applications.
Only boards tested to relevant food safety standards (like FDA/EU) and with low Cobb value are suitable for direct food contact. Always consult the supplier's technical sheet for food-grade certification.
Common sizes include 1092x787mm, 1194x889mm, 610x860mm, 31x43", and custom sizes can be manufactured for special requirements.
Grey back is economical, suitable for inner surfaces; white back offers premium look (higher print whiteness on both sides), and brown back combines cost advantage with natural appearance and strength.
Store boards in dry, clean rooms away from humidity. Handle with care to prevent edge damage or surface contamination before printing.
As the market for duplex board paper expands and evolves, technical expertise, modern production, and trusted partnerships are essential. XINGTAI SHINEWAY PAPER & DECORATION CO.,LTD stands prepared to deliver innovative, sustainable solutions for every packaging need—contact us to discover the best-fit duplex board paper for your business.