In the papermaking industry, the spiral dryer fabric, also known as the spiral dryer screen or spiral drying belt, is a critical component used in the drying section of paper machines. It is constructed from a helically wound continuous filament loop made of synthetic materials such as polyester or polyamide. The fabric is designed with a mesh structure that allows for efficient water drainage while providing a smooth surface for paper to dry evenly.

Function:
- Dewatering: The primary function of the spiral dryer fabric is to facilitate the efficient removal of water from the paper web as it passes through the drying section of the paper machine. The spiral design allows for effective drainage of water, helping to consolidate the paper fibers and achieve the desired dryness.
- Heat Transfer: It aids in the transfer of heat from the drying cylinders or drying cans to the paper web, promoting rapid evaporation of moisture.
- Smooth Surface: The smooth surface of the fabric ensures uniform drying and minimizes the risk of marking or damaging the paper surface during the drying process.
- Durability: Spiral dryer fabrics are designed to withstand the rigorous conditions of high-speed paper machines, offering long-term reliability and performance.

In summary, the spiral dryer fabric is indispensable in the papermaking industry for its role in dewatering, heat transfer, and ensuring the quality of dried paper products.

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