Vivaturf non-infill turf replaces the conventional infill-based cushioning model with an integrated system built around three interacting layers: a biomimetic fiber layer, a composite cushioning backing, and an overall structural balance between softness and support.
1.1 Fiber layer: biomimetic curl geometry for micro-scale energy absorption
The yarn layer uses a straight-and-curled fiber combination. The curled yarns are formed from modified high-elasticity polyethylene and thermally set into regular spiral structures, behaving like distributed micro-springs. Under load, they deform in a controlled way to absorb impact energy and then recover quickly. The straight yarns provide the structural support needed for stable push-off and controlled movement.
The fiber profile uses a hollow diamond-shaped cross-section, which improves deformation-based energy absorption while also increasing resilience and reducing the risk of long-term flattening or breakage.
1.2 Backing layer: multi-layer cushioning for macro-scale force distribution
The backing combines a high-density polypropylene base with a closed-cell elastic cushioning layer. The closed-cell structure compresses evenly under impact and helps spread force more uniformly, reducing peak loading at the joints. Because the layers are thermally bonded rather than assembled with conventional solvent-heavy adhesives, the system also improves dimensional stability and reduces odor and emission concerns.
1.3 Whole-system force balance
The surface is tuned by controlling the fiber height, pile density, curl geometry, and backing thickness. This allows the turf to avoid two common extremes: a surface that is too soft and wastes force during push-off, or one that is too hard and increases cumulative joint loading. The result is a training surface that feels closer to natural grass underfoot while remaining more stable and easier to manage.
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