Agriculture Grass Mat Fabric PP Woven Geotextile Biodegradable Grass Mat Garden Ground Cover

Manufacturing process of polyester woven geotextile

1. Raw material preparation

Basic materials

· The main raw materials are polyester (PET) or polypropylene (PP) granules. Some products mix the two materials to enhance performance.

· Polyester granules are melt-extruded at high temperature (about 300℃) to form continuous fiber filaments, which are then cut into staple fibers or processed into flat yarns.

2. Fiber processing and weaving technology

1. Flat yarn production

· The molten polyester or polypropylene is formed into a film through an extruder, cut into flat yarns (width of about 2~5mm), and then stretched and heat treated to improve tensile strength and stability.

2. Weaving process type

· Weaving process: The flat yarn is used as warp and weft yarns, and cross-woven into a cloth shape through a loom to form a stable two-dimensional structure.

· Warp knitting composite process: The polyester filament is composited with a staple needle-punched non-woven fabric using a warp knitting machine to form a material with high strength and three-dimensional permeability.

3. Special weaving technology

· Some products achieve different permeability coefficients and mechanical properties (such as a gram weight range of 100~1200g/m²) by adjusting the weaving density and the ratio of warp and weft yarns.

3. Post-treatment and reinforcement

1. Thermal bonding and shaping

· After weaving, geotextiles are hot-rolled or coated to enhance the bonding strength between fibers, improve tear resistance and durability.

· Some products add UV stabilizers and antioxidants to extend outdoor service life.

2. Functional treatment

· The surface is singed (forming a sintered layer) to prevent the fibers from loosening and enhance the friction performance with the soil.

· Some high-end products form anti-seepage geotextiles through composite anti-seepage membranes (such as PE membranes), which are suitable for scenes such as landfills.

Quality Inspection and Standards

• The finished product must comply with the standards of Geosynthetics Woven Geotextile (GB/T 17641-2017), and the test indicators include breaking strength (4.5~35kN/m in the longitudinal direction), permeability (10⁻¹~10⁻³ cm/s), etc.
• Sampling test of anti-aging and acid and alkali corrosion resistance to ensure long-term stability.

Process advantages and applicability

• Lightweight and adaptable: The weaving process can produce wide width (1~6 meters) products to meet the needs of complex terrain.
• Customization capability: Supports customization of color (black/green/white), gram weight and composite functions (such as reinforcement, drainage)

Technical advantages support application scenarios

• High strength and low creep: The polyester filament braided structure ensures long-term tensile performance and is suitable for high-load scenarios.
• Corrosion and aging resistance: Resistant to acid, alkali, ultraviolet and microbial erosion, with a service life of more than 50 years.
• Water permeability and filterability: Balance drainage needs and particle blocking, optimize engineering stability