Product Overview
Blue Core Board, also known as Puzzle Backing Paperboard, is a high-quality virgin wood pulp board designed for premium puzzle production. It provides excellent stiffness, clean die-cut edges, and outstanding stability, ensuring a satisfying fit, durable interlocking, and high-definition print performance.
Product Features
- Premium material: Made from high-quality virgin wood pulp with a dense and uniform structure for premium puzzle applications.
- Stable rigidity: Excellent stiffness and dimensional stability for precise die-cutting and assembly.
- Clean cutting performance: Produces clean edges with minimal burrs and low dust during die-cutting.
- Excellent durability: Strong resistance to delamination and warping, suitable for repeated assembly and use.
- Good printability: Suitable for high-resolution printing and coating, delivering clear and stable color performance.
Applications
- Primarily used in puzzle manufacturing as a structural paperboard material (puzzle backing board / base material), serving as the core layer for image printing and subsequent die-cutting processes.
- Widely applied in various types of puzzle production, including children’s puzzles, adult puzzles, and art puzzles, supporting large-scale manufacturing with stable and consistent performance.
- Suitable for puzzle manufacturers and OEM/ODM factories, used for developing and mass-producing puzzle board materials in different specifications to ensure reliable processing consistency.
- Also applicable to custom puzzle products, gift puzzles, and promotional puzzle projects, offering strong adaptability in premium and personalized applications.
Specifications
| Material | High-quality virgin wood pulp fibers |
| GSM Range | Customizable based on packaging and converting requirements |
| Thickness | Customizable |
| Density | ≥0.625 g/cm³ |
| Smoothness | ≥10 s (Bekk method) |
| Moisture Content | 10±1% (suitable for standard packaging applications) |
| Standard Sizes | 787 × 1092 mm / 889 × 1194 mm (custom sizes available) |
| Packing | Export pallet packing with PE protective wrapping and corner protection |
| Container Load Capacity | 14–17 tons per 20FT / Up to 25 tons per 40FT |
Commercial Information
Origin & Capacity: Manufactured in China across multiple production bases in Sichuan, Jiangsu, Guizhou, Hebei, and Shaanxi. Total annual capacity of 200,000 tons.
MOQ: Minimum order quantity around 5 tons per specification. Small trial orders available.
Trade Terms: EXW, FOB, CIF supported.
Payment Terms: T/T bank transfer and L/C at sight for bulk international orders.
Lead Time: Typically 10–20 days, depending on order quantity and specifications.
FAQ
1. Can samples be provided for testing? Yes. We can provide samples for testing stiffness, cutting performance, and die-cutting compatibility.
2. Is customized specification available? Yes. We offer customized solutions in thickness, size, and basis weight.
3. How is bonding applied in puzzle production? A lamination process is typically used to bond the printed sheet to the puzzle backing paperboard, ensuring stable structure and consistent die-cutting performance.
4. Should lamination be applied on the front or back side of the puzzle? In standard production, lamination is applied on the back side of the printed sheet to preserve image quality on the front while ensuring strong adhesion to the backing board.
5. Which is more suitable for production, a puzzle mat or puzzle paperboard? Rigid puzzle backing paperboard is preferred due to its higher dimensional stability, better die-cutting precision, and consistent performance in high-speed production processes.
6. Is the material environmentally friendly? Yes. It is made from responsibly sourced virgin wood pulp from sustainable forestry.
Supplier & Author Profile

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