Vivaturf non-infill turf is designed to reduce dependence on sand or rubber granules. Its anti-flattening performance comes from a self-supporting structure built around three key technical layers.
2.1 High-Modulus Modified Yarn: The Foundation of Upright Support
Ordinary turf fibers may have a tensile modulus of around 600 MPa, which is often not sufficient for long-term upright stability in a non-infill system.
Vivaturf uses high-modulus straight yarns in suitable non-infill systems, with tensile modulus values that can reach approximately 1,200 MPa depending on the product specification. This improved modulus helps the yarn maintain upright stability without relying on loose infill.
At the same time, fiber recovery is equally important. A fiber that is stiff but cannot recover will still collapse after repeated loading. Vivaturf’s modified yarn system can achieve a recovery rate of around 95%, compared with lower-grade fibers that may remain closer to 70%.
This combination of stiffness and recovery helps reduce the risk of permanent flattening after repeated use.
2.2 7:3 Straight-and-Curled Bionic Matrix: Structural Support and Recovery
A single fiber structure is usually not enough to balance support and comfort. A fully straight yarn system may feel hard, while a fully curled yarn system may feel soft but lack support.
Vivaturf uses a 7:3 straight-and-curled bionic matrix in many non-infill sports systems:
- 70% high-modulus straight yarns create the main support framework.
- 30% high-resilience curled yarns provide cushioning, elastic recovery, and fiber interlocking.
The straight yarns help form a dense support network that holds the turf surface upright. The curled yarns sit between the straight fibers, improving resilience and helping the surface recover after repeated compression.
This structure helps the turf avoid the two common problems of low-grade non-infill products: hard but uncomfortable surfaces, or soft but unstable surfaces.
Some advanced Vivaturf systems may also use spiral or 3D-shaped yarn concepts to improve fiber interaction and long-term upright stability.
2.3 Reinforced Composite Backing: Root-Level Stability
Fiber uprightness is not only about the fiber itself. The root must also be firmly locked into the backing.
If the backing is weak, fibers may tilt, loosen, or detach after long-term use. Once the fiber root becomes unstable, the entire turf surface may begin to collapse.
Vivaturf uses a multi-layer reinforced backing system, which may include high-density glass-fiber grid reinforcement and high-strength structural layers. This design improves dimensional stability and helps lock the yarn roots firmly in place.
A strong non-infill backing system can help achieve yarn pull-out force values around 35 N, compared with ordinary turf products that may be closer to 20 N.
Vivaturf also applies advanced bonding or heat-fusion technology in suitable systems to reduce the risk of hydrolysis, delamination, odor, and backing deformation caused by moisture or temperature changes.
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