The Ningbo Fold, from APP’s Ningbo mill, is a premium C1S ivory board known for superior printing surface. Used in luxury packaging and printing, it reflects APP’s commitment to sustainability.
| Prouct Code | APP FIV |
|---|---|
| Material | virgin wood pulp |
| Weight | 170-400gsm |
| Packing | Roll pack/bulk pack/ream pack |
| Usage | Packaging for Daily necessities,Electronic products,Cultural goods, Pharmaceutic,Tools & Various types of cards |
1. Smooth and delicate surface, excellent reproduction of fine lines, suitable for monochrome non-full-page printing on the back.
2. ≥250gsm suitable for laser digital coding (production date, batch number, etc.), widely used in medicine boxes.
3. Good paper strength, suitable for a wide range of post-processing applications.
4. Complete weight options, delicate front and back sides for low weight, more suitable for various cards.
| Property | Unit | Tolerance | A Grade | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basis Weight | g/m2 | 士3% | 170 | 190 | 200 | 210 | 220 | 230 | 250 | 270 | 280 | 300 | 325 | 350 | 400 |
| Stiffness CD | mN*m | Target | 1.37 | 1.68 | 2.1 | 2.52 | 2.63 | 3.57 | 4.41 | 5.67 | 5.88 | 7.35 | 9.98 | 11.6 | 16.8 |
| ≥ | 1.2 | 1.5 | 1.8 | 2.1 | 2.4 | 2.9 | 3.8 | 4.6 | 5.2 | 6.5 | 8.5 | 10 | 14 | ||
| Stiffness MD | mN*m | Target | 2.31 | 3.68 | 3.68 | 4.73 | 5.25 | 7.46 | 9.45 | 11 | 12.6 | 14.7 | 20 | 24.2 | 32.6 |
| ≥ | 2 | 3.1 | 3.1 | 3.2 | 3.2 | 6.5 | 7 | 7.5 | 8 | 12 | 15 | 18.5 | 23 | ||
| Thickness | um | ±10 | 205 | 245 | 260 | 275 | 290 | 310 | 340 | ||||||
| ±15 | 370 | 385 | 415 | 460 | 490 | 555 | |||||||||
| Moisture | % | ±1.0 | 6 | 6.5 | 7 | ||||||||||
| Roughness | um | Target | 1.1 | ||||||||||||
| ≤ | 1.3 | ||||||||||||||
| Brightness(Front) | % | ±2.0 | 91 | ||||||||||||
| Brightness(Back) | % | ±2.0 | 88 | ||||||||||||
| Glossiness 75° | % | ≥ | 45 | ||||||||||||
| IGT(Front) | m/s | ≥ | 1.5 | ||||||||||||
| COBB 60s | g/m2 | ≤ | 55 | ||||||||||||
| Bonding strength | J/m2 | ≥ | 130 | ||||||||||||
| Skewness(Flat sheet) | mm | ≤ | 2.0 | ||||||||||||
| Dimensional Deviation(Flat Sheet) | mm | ≤ | 2.0 | ||||||||||||
Ningbo fold ivory board, also known as Ningbo fold C1S ivory board or FBB (folding box board), is a high-quality paperboard that is widely used in the packaging industry. It is named after Ningbo, a city in China that is a significant production center for this type of paperboard. The term ivory refers to the smooth, white surface of the board, which resembles ivory in color and texture. C1S stands for coated one side, indicating that the board has a coated surface on one side to enhance printability and visual appeal, while the other side remains uncoated.
Ningbo fold ivory board is made from a mixture of chemical pulp and mechanical pulp, giving it excellent strength and stiffness properties. The coated side provides a superior surface for high-quality printing, making it an ideal choice for packaging luxury goods, cosmetics, pharmaceuticals, and high-end food products. The board’s folding endurance and structural integrity also make it suitable for creating boxes and cartons that require durability and resistance to bending or creasing.
The production of Ningbo fold ivory board involves several steps, including pulping, sheet forming, pressing, drying, coating (on one side), and finally cutting to size. The coating process involves applying a layer of pigments and binders to one side of the paperboard to improve its surface properties for printing.
Due to its high quality and versatility, Ningbo fold ivory board has gained popularity worldwide and is exported from China to various countries for use in premium packaging applications.
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