PP Woven Geotextile Fabric Biodegradable Grass Mat Garden Ground Cover

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