Turf Reinforcement Mat Weaving for Loft and Compression
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Solution Overview
Problem
Traditional turf reinforcement mats (TRMs) require heat treatment to achieve the necessary loft, which increases production costs and causes fiber shrinkage, and often have inadequate compression resistance due to single fibers at peak and valley points in the weave pattern.
Innovation Solution
A three-dimensional turf reinforcement fabric is created without heat treatment by using a specific weave pattern and tension in the weaving process, incorporating fibers of varying diameters to achieve a loft thickness of at least 0.25 inches, and incorporating a flame retardant and UV stabilizer for added protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If heat treatment is applied to achieve necessary loft, then loft thickness is improved, but production cost increases and fiber shrinkage occurs
Solution Approach 1:
The patent replaces the thermal field (heat treatment) with a mechanical field (weaving tension and structure) to achieve loft. By applying controlled tension during the weaving process and using a specific weave pattern, the three-dimensional structure is created without thermal energy, thereby eliminating the need for expensive heat treatment equipment and reducing production costs while avoiding fiber shrinkage.
Solution Approach 2:
The patent changes the physical state and parameters of the fiber arrangement during manufacturing. Instead of using heat to alter fiber properties, the invention uses mechanical parameters (tension, weave pattern, fiber diameter variation) to create the loft structure. This parameter change approach allows loft achievement through mechanical means rather than thermal means, solving the contradiction between loft thickness and production cost.
2Shape
If heat treatment is applied to achieve necessary loft, then loft thickness is improved, but fiber length is reduced due to shrinkage
Solution Approach 1:
The patent substitutes thermal processing with mechanical processing to create loft. By using controlled weaving tension and structural design rather than heat treatment, the fiber length is preserved since no thermal shrinkage occurs. The three-dimensional structure is achieved through the mechanical arrangement of fibers during weaving, maintaining original fiber dimensions while creating the desired loft thickness.
3Ease of manufacture
If single fibers are used at peak and valley points in the weave pattern, then manufacturing simplicity is maintained, but compression resistance is inadequate
Solution Approach 1:
The patent applies local quality by using fibers of varying diameters at specific locations in the weave pattern. Thicker fibers are placed at peak and valley points where compression resistance is needed, while thinner fibers are used elsewhere. This localized variation in fiber properties enhances compression resistance without requiring complete redesign of the entire weave structure, maintaining relative manufacturing simplicity while improving strength at critical locations.
Solution Approach 2:
The patent employs composite material principles by combining fibers of different diameters within the same weave structure. The mixture of thick and thin fibers creates a composite structure where thicker fibers provide compression resistance at peak and valley points, while thinner fibers maintain overall fabric flexibility and manufacturing ease. This composite approach solves the contradiction between manufacturing simplicity and compression resistance.
Data Source
AI summary
A turf reinforcement fabric and a method for producing such a fabric by weaving a plurality of filaments in a predetermined pattern to form a three-dimensional structure formed to have a loft thickness without the application of heat to heat shrink the fibers, and/or formed with one or more fibers of increased thickness at peaks and valleys of the woven structure, and/or incorporating flame retardant and/or UV stabilizing fiber additives.