Natural wood pulp roll kraft paper is a specialised base paper developed and manufactured specifically for natural wood pulp roll. The product is made from high-strength natural wood pulp as the primary raw material, combined with heat-resistant additives and heat-resistant fibres, and is carefully produced using specialised papermaking equipment and processes. This kraft paper for natural wood pulp roll retains the natural brownish-yellow hue of the pulp without any additional chemical dyeing. It is environmentally friendly and stable in composition, with clearly defined physical and chemical parameters. It has a basis weight of 180 g/cm² and a moisture content controlled to within 7%. With its extremely low moisture content, it is resistant to dampness, softening, delamination and deformation during long-term operation. The roll body features a high degree of structural compactness and offers excellent operational stability.

The operating conditions for natural wood pulp rolls are clearly defined, with a long-term safe operating temperature below 140°C, making them suitable for medium-to-high-temperature continuous calendering production lines. The product offers outstanding core performance advantages, with sufficient overall hardness, excellent high-temperature resistance and superior wear resistance. It exhibits strong resistance to roll compression wear, resulting in a significantly extended service life compared to standard paper roll. During high-speed operation, the paper rollers are resistant to flaking and cracking, ensuring they do not contaminate the processed material and maintaining production cleanliness.

These natural-coloured wood pulp paper rolls are specifically designed for the paper processing and textile dyeing and finishing industries. Primarily used in the calendering stage of production lines, they evenly distribute calendering pressure to ensure a flat and smooth material surface, enhancing the finish of the final product. At the same time, they protect the surface of metal calendering rolls, reducing wear on the roll body and the frequency of maintenance. With stable performance and excellent value for money, they are the ideal consumable for calendering processes in the paper and textile dyeing and finishing sectors.

Technical specifications: The kraft paper used for natural wood pulp rolls contains 70%–80% wood pulp; the surface hardness (Shore D) of natural wood pulp rolls made primarily from this kraft paper can reach 89–91 degrees.

Technical Parameter Table for Roll Body Substrate and Finished Roll

Base Material Name	Raw Material Content	Finished Roll Surface Hardness (Shore -D)	Temperature Reference
Wool paper for calender roll	Wool 10%–18%	87–88	Standard medium to high-temperature conditions
Texturing roll wool paper	Wool 18%–25%	85–86	Standard medium to high-temperature conditions
Embossing roll wool paper	Wool 25%–40%	83–84	Standard medium to high-temperature conditions
Cotton pulp paper for supercalender roll	Standard medium to high-temperature conditions	88–90	80–120°C long-term stable operation
Kraft paper for natural wood pulp roll	Wood pulp 70%–80%	89–91	Long-term safe temperature <140°C
Cotton roll substrate	Cotton 100%	80–82	Approx. 180°C