To Be The Best Grey Board Supply Chain In The World.
Our duplex boards have a smooth surface for high-end offset printing, and we can make rolls and sheets as required.
We will apply it three times on the printed surface and once on the back. The fiberboard contains three layers. They are made entirely of 100% raw wood pulp and do not contain DIP and other waste pulp. The top and bottom layers are bleached chemical pulp and the filler is BCTMP. The manufacturing process is strictly in accordance with the prohibited substances standards promulgated by the Security Office of the State Council and the Ministry of Agriculture, and there are absolutely no harmful substances.
The product has high printing flatness, good flatness, high whiteness, good printing gloss, good halftone transfer recovery effect, clear and full color image and meets the requirements of electronic coding and laser engraving code.
It meets various processing requirements such as printing and water-based coatings.
The product has good light resistance and can be stored in non-direct sunlight.
Application
※ Handbags, lottery tickets, notebook covers, postcards, greeting cards, graphics cartons, carton toys, etc. weigh between 230gsm and 250gsm.
※ Basic weight between 250gsm and 400gsm, used for pharmaceutical, cosmetics, daily necessities, electronic products and stationery packaging.
Technical SpecificationDuplex Board | |||||||||
TECHNICAL SPECIFICATION | 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 | 15 | |||||||
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 | Face side: 80; Back side: 120 | |||||||
K&N | % | 25±5 | |||||||
Dirt | 0.2-1.0mm2 | pcs/m2 | 40 | ||||||
1.0-1.5mm2 | 4 | ||||||||
>1.5mm2 | No | ||||||||
Moisture | % | 8±2 | |||||||
1. Test conditions: temperature: 23±1°C; relative humidity: 50±2% | |||||||||
2. Double-sided standard size: 787mm * 1092mm, 889mm * 1194mm. Customizable. | |||||||||
3. Double-sided standard size reel: 6-inch core, diameter 1200mm~1300mm. | |||||||||
Package & shipping※ Package in roll: Wrapped in kraft paper and strap
※ Package in sheet: Each wooden pallet has a height of 1.1 meters or 2.2 meters. Each tray is wrapped in a full plastic film with corner protection. Ream packaging is acceptable.
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