Ultra high bulk single coated ivory board lightweight white cardboard
Product specification
| Product Type | Ultra high bulk ivory board |
| Material | 100% pure virgin wood pulp |
| Weight | 185g,205g,215g,245g,255g, 290g,295g,305g, 345g |
| Whiteness | ≥90 % ±2.0 |
| Glossiness | ≥35% |
| Roughness | ≤1.5 μm |
| Packaging | Both roll pack and sheet pack available for choose |
| Loading port | Ningbo |
| Payment terms | TT/ Western Union/ Paypal |
| Place of origin | China |
Application
Postcards
Pharmaceutical packaging
Electronic product packaging
Cosmetic packaging
Daily necessities packaging
Packaging
1.In Roll pack:
Each roll wrapped with 2ply PE coated kraft paper.
Can protect from moisture on long time transportation.
2.In sheet pack:
Each sheet packed with film shrink on wood pallet,then secure with packing strap.
Comparison for Ultra high bulk ivory board with normal
|
Product Index |
Ultra high bulk |
Normal |
High bulk |
Ultra high bulk |
Normal |
High bulk |
Ultra high bulk |
Normal |
High bulk |
|
Basic weight |
255 |
300 |
275 |
305 |
350 |
325 |
345 |
400 |
365 |
|
Thickness |
415 |
415 |
415 |
490 |
490 |
490 |
555 |
550 |
555 |
|
Bulk |
1.63 |
1.38 |
1.51 |
1.61 |
1.4 |
1.51 |
1.62 |
1.38 |
1.52 |
|
Stiffness CD |
7.05 |
7.00 |
7.00 |
12.1 |
10.5 |
11.0 |
14.0 |
14.5 |
12.0 |
|
（㎡/T） |
3922 |
3333 |
3636 |
3279 |
2857 |
3077 |
2899 |
2500 |
2740 |
Ultra high bulk ivory board and normal ivory board behave differently in real use;
“better” depends on whether you care more about light weight and cost, or dense feel and maximum processing flexibility.
Main differences during use
| Aspect in use | Ultra high bulk ivory board | Normal ivory board |
| Thickness vs gsm | Thicker at same gsm, so box looks more “substantial” without extra weight. | Thinner at same gsm, so to get same thickness you usually choose higher gsm (heavier). |
| Weight & shipping | Lighter for same box thickness, reducing shipping and material cost. | Heavier cartons for same thickness, higher logistics cost. |
| Stiffness/box performance | High stiffness and good burst/folding strength, cartons stand up well on shelf. | Also stiff and strong, but stiffness comes more from density and higher gsm. |
| Feel in hand | Thick, “puffy” and rigid but not very heavy, perceived as premium yet light. | More compact and solid, heavier feel at similar thickness (luxury, “weighty” impression). |
| Printing performance | Smooth coated surface, very good printability for logos, colors, and branding. | Excellent smoothness and uniformity; slightly more traditional choice for demanding finishing. |
| Finishing (die‑cut, fold, emboss, foil) | Good die‑cutting and folding; works well for normal emboss/foil, but very deep emboss may benefit from denser board. | Very robust for complex post‑processing (heavy embossing, deep deboss, multi‑step finishes). |
Technical Standard
| Items | Unit | Standards | Tolerance | 185 | 205 | 215 | 245 | 255 | 290 | 295 | 305 | 345 |
| Grammage | g/m² | ISO 536 GB/T 451.2 |
±3% | 185 | 205 | 215 | 245 | 255 | 290 | 295 | 305 | 345 |
| Thickness | µm | ISO 534 GB/T 451.3 |
±3% | 275 | 310 | 340 | 395 | 415 | 465 | 475 | 490 | 555 |
| Stiffness(15°)CD | mN·m | ISO 2493 GB/T 22364 |
Target | 2.31 | 3.56 | 4.95 | 6.29 | 7.76 | 9.25 | 9.9 | 13.3 | 15.4 |
| Minimum | 2.1 | 3.2 | 4.5 | 5.72 | 7.05 | 8.2 | 9 | 12.1 | 14 | |||
| Stiffness(15°)MD | mN·m | Target | 4.07 | 6.28 | 8.8 | 11.2 | 13.4 | 16.4 | 17.5 | 21.6 | 28.1 | |
| Minimum | 3.7 | 5.71 | 8 | 10.2 | 12.2 | 14.9 | 15.9 | 19.6 | 25.5 | |||
| Moisture | % | ISO 287 GB/T 462 |
±1.0 | 7.0 | ||||||||
| Surface roughness PPS | µm | ISO 8791-4 GB/T 22363 |
≤ | 1.5 | ||||||||
| Brightness | % | ISO 2470-2 GB/T 7974 |
±2.0 | 90.0 | ||||||||
| Gloss 75° | % | TAPPI 480 GB/T 8941 |
≥ | 35 | ||||||||
| IGT Blister | m/s | ISO 3783 GB/T 22365 |
≥ | 1.20 | ||||||||
| Cobb 60s | g/m² | ISO 535 GB/T 1540 |
≤ | 55.0 | ||||||||
| Ply bond strength | J/m² | TAPPI 569 GB/T 26203 |
≥ | 130 | ||||||||
| Inclination-sheet | mm | GB/T 451.1 | ≤ | 2.0 | ||||||||
| Size deviation-sheet | mm | GB/T 451.1 | ≤ | 2.0 | ||||||||
| Testing Condition: Temperature:(23±1)°C,Relative Humidity:(50±2)%(standard GB/T10739 & ISO187) | ||||||||||||
Which can be better?
Ultra high bulk is better when:
You want same or thicker box appearance with lower gsm (for example 260–270 gsm ultra‑high‑bulk instead of 300 gsm normal), to save material and freight.
Your focus is cost, sustainability, and shipping efficiency but you still need a premium, stiff carton (cosmetics, food, light electronics, FMCG).
Normal ivory board is better when:
You want a dense, heavy feel in the hand (high‑end perfume, luxury gift boxes, heavy glass bottles), where weight supports the brand image.
The job needs extreme or complex finishing (deep embossing, multiple foils, heavy scoring) where denser board can sometimes give more crisp details.
Advantages of ultra high bulk ivory board
Material and cost savings: For the same box thickness, you can select a lower gsm grade, using less fiber and lowering board cost per box.
Lower shipping weight: Lighter cartons mean lower freight cost and the ability to load more units per shipment, plus reduced fuel consumption.
High stiffness with light weight: Maintains good crush resistance and “stand‑up” performance on the shelf despite reduced gsm.
Sustainability benefits: Less raw material and lighter transport help cut carbon footprint; many grades use responsibly sourced virgin pulp and are recyclable.
Good printing and branding: Single‑coated smooth surface allows vivid colors and sharp graphics, suitable for modern, high‑impact packaging designs.
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