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Unbleached pulp is a type of raw pulp that has not undergone the bleaching process, retaining its natural color and fiber properties. It is primarily made from wood fibers, typically sourced from softwood or hardwood trees, and is produced through mechanical or chemical pulping methods. This pulp is characterized by its strength, durability, and environmental benefits, as it avoids the use of harsh chemicals during production. Unbleached pulp is commonly used in the manufacturing of various paper products, including packaging materials, newsprint, and specialty papers.
| Fiber source | Softwood or hardwood |
| Pulping method | Mechanical or chemical |
| Brightness | Natural color, typically 30-50% brightness |
| Moisture content | Typically 8-12% |
| Sheet size | Standard sizes available, e.g., 1000mm x 2000mm |
When selecting unbleached pulp, buyers should consider the fiber source, as different wood types can affect the final product's strength and quality. It's important to specify the desired brightness level, moisture content, and any specific pulping methods required. Additionally, buyers should inquire about the quantities needed and any relevant certifications, such as sustainability certifications, to ensure compliance with environmental standards.
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It is used for packaging materials, newsprint, specialty papers, and more.
Unbleached pulp retains its natural color and fibers, while bleached pulp undergoes a whitening process.
It avoids the use of harsh chemicals in production, making it more eco-friendly.
Yes, unbleached pulp can be recycled, similar to other paper products.
The moisture content typically ranges from 8-12%.
Look for sustainability certifications, such as FSC or PEFC.