Black cardboard has a core color that is black, giving it a
distinctive appearance. This black color provides a solid and
opaque background.Some black cardboard is made from environmentally
friendly recycled pulp, contributing to sustainability efforts and
reducing the environmental impact of the production process.
Pulp dyeing black color in both sides
Hard stiffness and folding resistance
Smooth surface,Good runnability
Colorful offset printing applicable
High tear resistance, low humidity, long fiber, high folding
resistance, stable color
| Index | Parameter Standard | Test Method |
| Weight | Range 250-600 gsm | ISO 536 |
| Stiffness | ≥22 mN·m (longitudinal direction, 300gsm) | ISO 5628 |
| Folding Endurance | >150 times (MIT folding endurance tester, 0.5kg tension) | ISO 5626 |
| Smoothness | ≤2.0 μm (Parker Print-Surf method) | TAPPI T555 |
| Tear Strength | ≥700 mN (transverse direction) | ISO 1974 |
