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Kraft Paper Machines: Efficient Production for Strong Packaging Paper
Kraft paper, also known simply as kraft, is a durable paper or paperboard produced from chemical pulp using the kraft process. This method creates pulp that is significantly stronger than pulp made by other techniques, making kraft paper ideal for demanding packaging applications. Common uses include shopping bags, wrapping materials, and industrial packaging.
Kraft Paper Machines: Efficient Production for Strong Packaging Paper
Grammage and Paper Strength
The grammage of kraft paper typically ranges from 80 to 120 grams per square meter (g/m²). This weight range provides the necessary balance between strength and flexibility, allowing kraft paper to resist tearing and wear during transport and handling. Its high durability and resistance to mechanical stress make it a preferred choice for heavy-duty packaging.
Production Capabilities of Kraft Paper Machines
Our kraft paper machines are designed to meet diverse production requirements while maintaining consistent quality. Depending on the customer’s needs, the machines can produce paper widths of up to 5200 millimeters and operate at speeds of up to 600 meters per minute. With a daily production capacity of up to 500 tons, these machines are well-suited for large-scale kraft paper manufacturing.
Raw Material and the Kraft Process
The kraft process involves chemically pulping wood to remove lignin and retain long, strong fibers. This results in a pulp that is more robust than that produced by mechanical or semi-chemical methods. The process also allows for the recovery and reuse of chemicals, making it more sustainable and cost-effective over time. The raw materials used can include both softwood and hardwood, offering flexibility in fiber composition.
Applications of Kraft Paper
Kraft paper is widely used in packaging due to its strength, thickness, and eco-friendliness. It is commonly found in products such as grocery bags, envelopes, wrapping paper, and corrugated box liners. Its natural brown appearance can also be bleached for a white finish, depending on the intended use.
Conclusion
Kraft paper machines are essential for producing high-strength packaging paper that meets the growing demand for sustainable and reliable packaging solutions. With high-speed production, wide format capabilities, and the use of robust raw materials, these machines support efficient kraft paper manufacturing across various industries. Whether used for retail, shipping, or industrial packaging, kraft paper remains a trusted material for protective and eco-conscious packaging.