White Cardboard (Ivory Board) is a premium, high-bulk packaging board made entirely from 100% virgin wood pulp. Unlike Duplex Board, it is white on both the top and bottom sides (and inside the core). It typically features a multi-layer structure: bleached chemical pulp on the top and bottom, with mechanical pulp in the middle to increase bulk and stiffness. It is the material of choice for industries requiring hygiene, strength, and superior aesthetics.
| Parameter | Unit | Standard Specification Range |
|---|---|---|
| Basis Weight (Grammage) | g/m² (gsm) | 190 - 400 gsm |
| Thickness (Caliper) | µm (microns) | 260 - 650 µm |
| Brightness (Top) | % ISO | 90% - 94% |
| Brightness (Back) | % ISO | 84% - 88% |
| Stiffness (CD) | mN·m | 3.5 - 20.0 |
| Stiffness (MD) | mN·m | 7.0 - 40.0 |
| Smoothness (PPS) | µm | 0.8 - 1.4 µm |
| Moisture Content | % | 5.5% - 7.5% |
| Cobb Value (Top) | g/m² | 30 - 45 |
| Ply Bond | J/m² | > 150 |
| Material Composition | - | 100% Virgin Wood Pulp |
We are a professional manufacturer, founded in 2012, engaged in the production and sales of Gray Cardboard, Duplex board, White Cardboard, Black cardboard, kraft paper, and Paper Box. With a plant area of 10,000 square meters, we have a standard stock of 1,000 tons and our annual sales exceed 20,000 tons of paperboard. There are five paper machine production lines for grey boards and four machines for black paper. We also feature an automatic production line, automatic flat cutting machine, V-slot machine, and more. All paper products have obtained SGS, RoHS, MSDS, and FSC certifications. To improve our core competitiveness, customized products and one-step services are provided for our customers.