Wood Pulp Wood pulp is a type of pulp produced from wood materials. It is usually made from wood chips by chemical or mechanical methods to remove lignin from the wood and retain cellulose and hemicellulose. Depending on the source of wood, wood pulp can be divided into coniferous pulp and broadleaf pulp. According to different preparation methods, pulp can be divided into three categories: chemical pulp, mechanical pulp and semi-chemical pulp.
Chemical wood pulp uses chemical methods (such as sodium hydroxide method, sulfuric acid method, etc.) to extract fibers from wood, and has high strength and good processability. Common types include Kraft Pulp, sulfate pulp, etc. Mechanical pulp uses mechanical processing to grind wood into pulp, retaining more wood components, and usually the strength of paper is lower. It is used in newsprint, magazine paper, etc. Semi-chemical pulp combines chemical and mechanical processes and uses partial chemical methods to remove lignin from wood. It is often used in the production of cardboard, such as corrugated paper, cartons, etc.
♻️ High purity: The fiber is pure and has low impurity content.
♻️ Environmental certification: Comply with FSC (Forest Stewardship Council) and PEFC (Forest Certification System) standards.
♻️ Customized supply: Different specifications of wood pulp can be provided according to customer needs.
| Category | Preparation method | Features | Application |
| Chemical Pulp | Sulfate process, sulfite process | Pure fiber, high strength | High-grade paper, cultural paper, special paper |
| Mechanical Pulp | Groundwood pulp, thermomechanical pulp (TMP) | Retain lignin, yellowish color, shorter fibers | Newsprint, magazine paper, low-cost paper |
| Semi-chemical Pulp | Combine chemical and mechanical treatment | Moderately remove lignin, retain some strength | Corrugated paper, industrial paper |
| Category | Source | Features | Application |
| Softwood Pulp | Coniferous wood (such as spruce, pine, fir) | Long fiber, high toughness, high strength | Carton, packaging paper, toilet paper |
| Hardwood Pulp | Broadleaved wood (e.g. eucalyptus, poplar, birch, alder) | Short fiber, good smoothness, high printability | Cultural paper, copy paper, specialty paper |
Green Packaging
·E-commerce cushioning materials (EPS foam replacement)
·Fresh cold chain molded pallets
·Luxury bio-based packaging linings
Life Innovation
·Flushable hygiene products
·Plant fiber 3D printing consumables
·Children's safety tableware sets
Industrial Upgrades
·Automotive interior bio-based panels
·Architectural sound insulation cellulose panels
·Lithium battery cellulose diaphragms
Raw material source: Nordic spruce/Canadian black pine
Fiber characteristics: Average length 2.8-3.5mm, aspect ratio 80:1, natural fiber entanglement advantage
Microstructure: S2 layer accounts for more than 70%, cell wall thickness > 5μm
Raw material source: Brazilian fast-growing eucalyptus/Southeast Asian mixed broadleaf forest
Fiber characteristics: Average length 0.8-1.2mm, fine fiber proportion > 65%
Microscopic advantages: High content of thin-walled cells, strong natural hydrogen bonding
Raw material source: Mixed pulp of softwood and hardwood
Fiber characteristics: Combine the strength of softwood pulp and the smoothness of hardwood pulp
Microscopic advantages: Specialty paper (such as filter paper, cigarette paper, medical paper), high-end packaging paper
Equipped with a material engineering laboratory, it can provide full-process services from fiber ratio to mold design
Optional Parameters:
Size: 84 x 78 cm; Grammage: 850 –980 g/m2; pH: 5.0–7.5; etc. Available in bundles and rolls.
| Parameters | Range |
| Raw Materials | |
| Raw Material Types | Softwood, hardwood, mixed Wood |
| Raw Material Purity | ≥85%, ≥90%, ≥95%, ≥99% |
| Fiber Properties | |
| Fiber Length (mm) | 1.5 – 3.5 mm (softwood pulp); 0.6 – 1.5 mm (hardwood pulp) |
| Fiber Width (μm) | 15 – 35 μm (softwood pulp); 10 – 30 mm (hardwood pulp) |
| Fineness (%) | 5% – 25% |
| Physical Properties | |
| Moisture Content (%) | ≤10% |
| Brightness (ISO %) | 75 – 92% |
| Ash Content (%) | 0.3% – 1.5% |
| Chemical Composition | |
| α-cellulose Content (%) | ≥80%, ≥85%, ≥90%, ≥95% |
| Lignin Content (%) | ≤0.3% |
| Process Options | |
| Bleaching Method | Unbleached, semi-bleached, fully bleached |
| Bleaching System | ECF, TCF, chlorine-free bleaching |
| Pulping Method | Refining, disc refining, disc refining |
We will provide customized products to meet your specific needs. If you have other parameter requirements, please feel free to provide them to us.
As a global leading provider of bio-based material solutions, CD BioSciences uses wood pulp as the core carrier, integrating nanotechnology, bionic engineering and carbon neutral management systems to create mass-producible green alternatives. Whether it is the industrial-grade strength of coniferous pulp or the economic advantages of broadleaf pulp, CD BioSciences always reconstructs the boundaries of materials with the power of science. If you would like to learn more about us, please feel free to contact us.
Our products and services are for research use only and cannot be used for any clinical purposes.
