The Decisive Role of Forming Fabric in Paper Production

The primary and most intuitive function of the forming fabric is to form and transfer paper. Better use of the forming fabric is the core link to improve paper quality, optimize production efficiency and reduce production costs. Below, Sun Hong analyzes its importance and technical points for you:

The Role of the Forming Fabric on Paper Quality

• Fiber distribution and forming uniformity: The forming fabric directly affects the uniformity, strength and smoothness of the paper by supporting the wet paper and controlling the directional arrangement of the fibers. The double layer forming fabric can reduce fiber aggregation and improve the control ability of the paper’s two-side inspection through the interwoven structure of the upper and lower layers.
• (2) Dehydration efficiency and mesh surface performance: The air permeability and dehydration performance of the forming fabric determine the dehydration amount of the mesh. Optimizing the mesh density and surface structure, such as the SSB triple layer forming fabric, can quickly drain water, reduce the inspection of the two sides of the paper, improve the surface strength, and achieve efficient dehydration.

The Improvement of Paper Production Efficiency By Forming Fabric

• Wear resistance optimization: The structure of the triple layer forming fabric adopts a mixed woven forming fabric of polyester monofilament and nylon monofilament, which can extend its service life by 60-90 days and reduce the cost of mesh consumption.
• Fatigue resistance: The eight-shelf 2.5 layer forming fabric has high fatigue resistance and is suitable for high speed paper machines with a speed of more than 1500m/min, reducing the frequency of paper breaks.
• Energy consumption and production capacity optimization: High efficiency dewatering technology (such as suction couch roll zoning control) reduces energy consumption in the subsequent drying process. The twin wire paper machine forming section shortens the forming area through double-sided dewatering and increases the machine speed to more than 2000m/min.

Advantages of Forming Fabric in Cost Control

Reduced raw material and maintenance costs. The triple layer forming fabric structure reduces fiber loss through high density design, improves retention rate, and saves filler costs. High quality forming fabric can also reduce wear on the mesh roller and reduce the frequency of equipment maintenance. The corrosion resistance of polyester forming fabric extends compatibility with wet-end chemicals.

Forming Fabric Selection and Application

Select the fabric type based on the paper type. For fine paper, a four- or five-shelf single layer forming fabric is recommended, offering low cost and high uniformity. For packaging paper, an eight-shelf 2.5 layer forming fabric offers high tensile strength. For specialty paper, a double layer weave fabric with a stitched structure offers fiber retention. A three-layer forming fabric combines high strength with excellent papermaking properties and is suitable for producing tissue, fine paper, and specialty paper.

Overall, the forming fabric is a core component of the paper machine, deexcellent termining the initial structure and physical properties of the paper and influencing the energy efficiency and quality of the entire paper making process. It plays a crucial role in every step of the process.