The premium choice for a wide range of applications, featuring a combination of good strength and high porosity.
Characteristics
Porosity: EP Aspen fibers have large lumen and a relatively thin wall. The combination results in a fiber with good collapsibility to form smooth, dense sheets.
Tensile Strength: EP Aspen is produced from a consistent single-species fiber with a strength equal to that of mixed hardwoods. Elemental chlorine free (ECF).
Value-Added Features
Aspen offers good porosity development for smooth sheets with excellent coating holdout. Compared to mixed hardwood, EP Aspen also offers more uniformity and lower dye requirements. High brightness grades mean minimal use of optical brightening agents. EP Aspen is an ideal replacement for mixed pulp due its low pitch content.
Pure Benefits
- Ideal porosity for smooth sheets with excellent coating holdout
- Greater uniformity and lower dye requirements compared to mixed hardwoods
- High brightness grades mean minimal optical brightening agents
- Good replacement for mixed hardwoods
- Low permeability, excellent fiber-to-fiber bonding, and low DCMs
- Good strength and medium coarseness
Ideal Applications
- Base papers for coating
- Label papers
- Release papers
- Thermal and self-contained paper
End-use Benefits
- High tensile
- Good formation
- High sheet density
- Good smoothness
- Low capacity and bulk
Wood Species (Typical)
| Softwood | 3% - 5% |
| Aspen | Remaining |
Typical Pulp Properties**
| Brightness (ISO) | 90 (89 min) |
| Dirt (ppm) | 0.1 |
| Viscosity (cp) | 15 |
| Fiber Length (mm) | 0.79 |
| Coarseness (mg/m) | 0.91 |
| DCM Extractives (%) | 0.066 |
| Ash (550° C) (%) | 0.32 |
| Air Dry (%) | 93 |
| * Kajaani FS-200 **FQA |
Shipping Data
| Dimensions | Inches | cm |
| Length | 33 | 83 |
| Width | 33 | 83 |
| Height | 16.5 | 41.9 |
| Weight | 580 lb. / 263 kg | |
| Wrapping: Single wrapped with pulp | ||
| Wires: | Domestic | 1 x 1 |
| Export | 1 x 2 | |
| Export Package: | 8 bales/unit |
PFI Mill Handsheet Data
| Revolutions | Units | 0 | 250 | 800 | 1600 | 3400 |
| Freeness |
CSF, (ml) | 484 | 404 | 324 | 284 | 200 |
| SR, (°SR) | 26 | 32 | 38 | 42 | 52 | |
| Bulk |
(cc/g) | 1.68 | 1.60 | 1.49 | 1.46 | 1.41 |
| Burst Factor |
11.1 | 21 | 28 | 33 | 40 | |
| Burst Index |
(kPa-m²/g) | 1.09 | 2.06 | 2.71 | 3.21 | 3.94 |
| Tear Factor |
46 | 66 | 70 | 69 | 77 | |
| Tear Index |
(mN-m²/g) | 4.47 | 6.47 | 6.90 | 6.77 | 7.58 |
| Breaking Length |
(km) | 2.670 | 3.950 | 4.820 | 5.560 | 6.280 |
| Tensile Index |
(Nm/g) | 26.2 | 38.7 | 47.3 | 54.5 | 61.6 |
| Tappi Opacity |
% | 76.3 | 74.1 | 72.6 | 71.8 | 69.8 |
Pfi
