Fiber Cement Board Felt

Fiber cement board felt typically include one or more base fabric layers that are formed into endless belts. The base fabric layers can be "flat-woven" and permanently joined after weaving into an endless belt, or the fabric layers can be woven in endless form. The longitudinal ends of flat-woven fabrics are generally joined in order to form an endless belt.

Some fiber cement products benefit from indentations in the surface, known as "marking," in order to improve bonding of overlying layers. Such fiber cement product is typically used in roofing sheets, corrugated sheets, pipe and the like. Fiber cement board felts that produce marking often employ heavy spunbond CMD yarns in combination with spunbond-multifilament hybrid MD yarns. However, fiber cement board felts can suffer from contamination and reduced ability to mark over time. It may be desirable to provide a fiber cement product that addresses these shortcomings.

Fiber cement board felt including MD and CMD yarns interwoven with each other, wherein the CMD yarns comprise twisted monofilaments; and at least one batt layer overlying the base fabric layer. In this configuration, the fiber cement felt may have improved properties over existing fiber cement felts, including easier cleaning, better abrasion resistance of the CMD yarns, improved compaction resistance, higher CMD strength, and better protection of the MD yarns by the CMD yarns.

Technical indicators of Fiber Cement Board Felt

1. The tensile breaking strength: 6000 ~ 10000N/5CM
2. The tensile deformation rate : length deformation <2%, Width deformation <2%
3. The permeability ( filtration performance ): 1000 ~ 1200MM / S (200Pa)
4. PH value : 6 ~ 11

Fiber Cement Board Felt Advantages
1. Uniform texture
2. Good surface,
3. Good permeability
4. Good filterability
5. Stable size
6. Stable operation
7. Long lifetime
8. Endless felt

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