- ✓ Custom reel widths (e.g., 848mm / 1060mm / 1270mm) tailored to 4-pocket & 5-pocket A4 sheeters
- ✓ Tight winding tension profile prevents telescoping and core crushing in ocean transit
- ✓ Allows regional converters to bypass finished-ream import tariffs and print local brands
Uncoated Woodfree Jumbo Paper Parent Rolls (Converting Base)
100% virgin wood pulp uncoated woodfree (UWF) parent reels wound directly off our twin-wire paper machine. Engineered for overseas sheeting plants converting A4/A3 reams locally.
| HS Code (Customs Tariff) | 4802.55.00 |
| Document Reference | TDS-GH-1039-JMB |
| Substance / Basis Weight | 70 / 75 / 80 / 90 / 100 / 120 GSM |
| Supply Format / Dimensions | 840 / 860 / 1050 / 1260 / 1680 mm (Custom Slit to Sheeter) |
| CIE Whiteness (D65/10°) | 162% - 166% CIE (Customizable) |
| ISO Brightness (UV D65) | 102% - 104% ISO |
| Opacity & Duplex Runnability | ≥ 95.0% (Zero Show-Through) |
| Export Barrier Packaging | PE Film + Heavy Kraft Board + Edge & Core Plugs |
| Minimum Order Quantity (MOQ) | 1 x 40HQ Container (~25 - 27 Metric Tons) |
| Port Loading Lead Time | 10 - 12 Working Days |
Commercial scope, pulp furnish & application architecture
Primary Pulp Composition
100% Virgin Bleached Hardwood & Softwood Kraft Pulp Uncoated Woodfree (UWF) Mother Reels
Chemical & Optical Calibration
Alkaline AKD Sizing (pH 7.5–8.5) + PCC Filler Tuned for High-Speed Rotary Sheeters
Calendering & Permanence
QCS Beta-Gauge Closed-Loop Profiling (CD Caliper 2σ < 1.0%, Moisture 4.5% ± 0.4%) Certified under ISO 6749 Core Standard, ISO 11475 High Whiteness & Zero-Telescoping Winding Profile.
Engineered for demanding B2B workflows
- ✓ Overseas A4/A3 cut-size sheeting plants operating E.C.H. Will, Bielomatik, or Pemco lines
- ✓ Regional converters importing mother reels at lower customs duty than finished reams
- ✓ Commercial web offset book printing, continuous computer forms, and exercise book lines
- ✓ Custom-width slitting (840 / 848 / 1050 / 1260 / 1680 mm) for 2-, 4-, 5-, and 8-pocket sheeters
Uncoated Woodfree Parent Reel Converting Technical Data Sheet
Conditioned and tested under ISO 187 (23°C ± 1°C, 50% ± 2% RH). Every export container ships with a batch-certified COA matching these tolerances.
| # | Parent Reel Parameter | Test Method | Light Weight (50–60 GSM) | Cut-Size Base (70–80 GSM) | Offset / Heavy (90–120 GSM) |
|---|---|---|---|---|---|
| 01 | Basis Weight Tolerance | ISO 536 | 50–60 ± 1.5% | 70 / 75 / 80 ± 1.5% | 90–120 ± 2.0% |
| 02 | Slit Web Width Tolerance | Mill Slitter | ± 1.0 mm | 840 / 1050 / 1260 / 1680 ± 1.0 mm | ± 1.0 mm |
| 03 | Reel Outer Diameter (OD) | Mill Winder | 1,000 – 1,250 mm | 1,050 – 1,450 mm | 1,150 – 1,500 mm |
| 04 | Core Inner Diameter (ID) | ISO 6749 | 76 mm (3") / 152 mm (6") | 76 mm (3") or 152 mm (6") | 76 mm / 152 mm Heavy Core |
| 05 | CD Caliper Profile 2σ | QCS Beta Gauge | < 1.2% Variation | < 1.0% (Zero Baggy Edge) | < 1.0% Variation |
| 06 | Reel Hardness Uniformity | Schmidt Hammer | 46 ± 2.0 Q | 48 ± 2.0 Q | 50 ± 2.0 Q |
| 07 | Maximum Splices per Reel | Ultrasonic Flag | ≤ 1 Marked Splice | ≤ 1 Marked (90% Zero-Splice) | ≤ 1 Marked Optical Splice |
| 08 | Tensile Strength MD | ISO 1924-2 | ≥ 3.5 kN/m | ≥ 4.8 kN/m (400 m/min Sheeter) | ≥ 6.2 kN/m |
| 09 | Online Moisture Profile | ISO 287 | 4.8% ± 0.5% | 4.5% ± 0.4% (Anti-Curl) | 4.5% ± 0.4% |
| 10 | CIE Whiteness (D65/10°) | ISO 11475 | 158 – 162 CIE | 162 – 166 CIE | 162 – 166 CIE |
High-speed cut-size sheeter & web converting compatibility
Slit to exact 848mm / 1060mm / 1270mm / 1696mm widths with <1.0% CD caliper variation for 400 m/min rotary sheeting.
Low-static 4.5% moisture profile prevents sheet skewing and overlapping in high-speed collating pockets.
Tight Schmidt hammer hardness profile (48 Q) eliminates roll core shifting and roll-set curl.
High surface pick resistance (IGT ≥ 1.6 m/s) prevents blanket piling during long coldset and heatset runs.
Instant ruling ink absorption without feathering or strike-through for school stationery converters.
Clean rotary punch and die-cut performance with zero fiber linting on tractor-feed holes.
Reel moisture barrier, chine edge discs & core protection
3–5 Ply PE-Kraft Roll Wrap
- • Inner LDPE Extrusion Film: Hermetically heat-sealed against tropical sea condensation.
- • Heavy Extensible Kraft Outer: 3 to 5 layers resist clamp-truck scuffing and port abrasion.
- • Serialized Waterproof Barcode: Displays reel ID, width, OD, GSM, gross/net weight, and batch COA.
Radial Edge Protection
- • Double-Wall Corrugated End Discs: Crimped and heat-sealed over both flat reel faces.
- • Molded Radial Chine Protectors: Heavy fiberboard/polymer rings shield roll edges from fork dents.
- • Zero Edge Bruising: Eliminates outer-wrap waste when mounting onto high-speed sheeters.
Steel Core Plugs & Chocks
- • Pressed Steel / Composite Core Plugs: Inserted into 76mm (3") or 152mm (6") cores to prevent crushing.
- • Grooved Timber Wedges: Nailed to pallet runners or container floor to lock roll position.
- • Dunnage Airbags & Polyester Straps: Absorbs maritime vessel rolling forces up to 2.0 G.
20ft GP vs 40ft HQ container stowage & payload specifications
Because paper is a high-density cargo (~720 kg/m³), container loading is governed by maritime gross weight limits (VGM) as well as internal cubic volume.
| Container Stowage Parameter | 20ft GP Container (Standard Heavy Load) | 40ft High-Cube (40HQ) Container (Max Payload) |
|---|---|---|
| Reel Stowing Orientation | Eye-to-Sky (Vertical on Pallets) or Eye-to-Wall (Clamped) | Multi-Row Staggered Horizontal or Vertical Palletized |
| Net Paper Payload Tonnage | 15.0 – 19.5 Metric Tons | 25.0 – 28.0 Metric Tons |
| Total Parent Reels Loaded | 14 – 24 Reels (by OD & width) | 28 – 44 Reels (by OD & width) |
| Dunnage & Securing System | Grooved Timber Wedges + Polyester Ratchet Straps | Inflatable Dunnage Airbags + Floor Chocks + Web Lashing |
| Commercial Freight Advantage | Lower trial working capital & flexible feeder ports | Lowest ocean freight cost per metric ton |
6 units of 1.0 kg high-absorption Calcium Chloride desiccant poles are hung inside container wall corrugations to trap up to 200% of their weight in sea moisture.
Every container floor is inspected for splinters, swept clean, and sealed with heavy-gauge polyethylene sheeting + corrugated slip-sheets prior to carton stowing.
Combine 70gsm, 75gsm, and 80gsm or mix A4 + A3 cartons (e.g., 85% A4 + 15% A3) inside a single 20GP container under one Bill of Lading.
Bespoke reel widths, core diameters & converter stencil marking
We slit parent reels to match your exact E.C.H. Will, Bielomatik, or web press deckle width (±1.0 mm tolerance), with custom 3" or 6" cores and serialized barcode tracking.
Standard 6-document export clearance packet
Every container shipment includes a complete, verified set of original shipping and laboratory documents for zero-delay port clearance:
Request an official FOB / CIF Proforma Invoice for Jumbo Parent Rolls
Submit your destination seaport, container volume, and target basis weight. Our export desk will calculate current ocean freight allocations and dispatch your official Proforma Invoice (PI) and batch COA within 6 hours.
Frequently asked questions on Jumbo Parent Rolls
What reel widths and outer diameters can you slit for A4/A3 cut-size sheeters? +
We slit uncoated woodfree (UWF) mother reels from 800 mm up to 3,200 mm width with ±1.0 mm tolerance, and outer diameters from 1,000 mm to 1,500 mm. Popular A4 sheeter widths include 840 mm, 848 mm (4-pocket), 1,050 mm, 1,060 mm (5-pocket), 1,260 mm, and 1,680 mm.
How are web splices marked and controlled for high-speed rotary sheeting? +
Over 90% of our parent reels are zero-splice. Where a splice occurs, we enforce a strict maximum of 1 ultrasonic repulpable tape splice per reel, clearly flagged on both reel faces with high-visibility optical markers for automatic sheeter rejection.
How do you prevent baggy edges, telescoping, and sheet curl in parent reels? +
Our twin-wire paper machine uses online QCS beta-gauge and infrared scanners to hold cross-direction (CD) caliper 2σ variation below 1.0%, Schmidt hammer hardness at 48 ± 2 Q, and moisture at 4.5% ± 0.4%.
What is the net metric tonnage loaded into a 20GP or 40HQ container? +
A 20GP container holds 18 to 20 Metric Tons (14–22 reels), and a 40HQ container holds 25 to 28 Metric Tons (26–40 reels), secured with grooved timber floor chocks, dunnage airbags, and polyester ratchet straps.
Why do regional paper converters import Jumbo Parent Rolls instead of finished reams? +
In many Latin American, African, Middle Eastern, and South Asian markets, importing raw parent reels under HS Code 4802.55.00 carries significantly lower customs import tariffs than finished cut-size reams (HS 4802.56.00), while allowing local private-label sheeting.
Can you supply matching branded ream wrappers and cartons alongside Jumbo Rolls? +
Yes. We can supply pre-printed PE-laminated ream wrapper rolls and flat die-cut 5-ply master cartons in the same shipment so your converting plant can immediately pack finished branded reams.
