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Two-side coated duplex paper board features good smooth and thickness and is widely used in package and printing.
※ The coating of 450gsm duplex boards is smooth and clean. It can be adapted to multi-color high-speed printing. It has good smoothness and thickness and is widely used in the packaging and printing of various products, such as toothpaste boxes, gift boxes, shoe boxes, T-shirts, wine, cigarettes, etc.
Feature
※ Environmental protection
※ High rigidity
※ Excellent printing effect and good brightness
Technical SpecificationTECHNICAL | UNIT | STANDARD | ||||||
Basic weight | gsm | 230 | 250 | 270 | 300 | 350 | 400 | 450 |
Weight range | % | ±5 | ||||||
Thickness≥ | µm | 280±15 | 305±15 | 320±15 | 370±15 | 435±15 | 500±15 | 555±15 |
Stiffness CD | mN·m | 1.7 | 2 | 2.5 | 4 | 5.5 | 8.5 | 11 |
Stiffness MD | mN·m | 3.4 | 4 | 5 | 8 | 11 | 17 | 22 |
Folding≥ | times | 10 | ||||||
Brightness Top ≥ | % | 82 | ||||||
Color(D65/10°) | - | L: 89±0.5; a: 2.0±0.5; b: -6±0.5 | ||||||
Gloss≥ | % | 40 | ||||||
Roughness ≤ | µm | 2 | ||||||
Cobb(60S)≤ | gsm | Front: 80; Back:120 | ||||||
K&N | % | 25±5 | ||||||
Moisture | % | 8±2 | ||||||
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