Long Fiber Nonwoven Geotextile

What Is Long Fiber Nonwoven Geotextile?

Long Fiber Nonwoven Geotextile is produced from long polypropylene filaments that are laid into a web and bonded by needle punching. The fibers remain long through the felt structure, giving the textile body a stable network for load transfer, hydraulic screening, and cushion service.

Compared with staple fiber felt, Long Fiber Nonwoven Geotextile often provides better tensile consistency and durability for demanding engineering courses. The random filament web allows water to pass while helping retain subgrade fines particles. This balance makes it suitable for strata isolation below roads, flow relief blankets, landfill cushion service courses, and retaining wall back flow relief.

During construction, the reel is placed over the prepared surface, overlapped according to the design, and covered by subgrade fines, aggregate, or another geosynthetic course. It helps stop mixing between different materials, supports water movement, and protects membranes or flow relief media from damage caused by sharp aggregate.

The product can be supplied in different mass per unit area, reel widths, reel lengths, tensile strength grades, and package forms. Engineers should select the specification based on subgrade fines condition, hydraulic requirement, puncture risk, installation stress, and service environment. CHANGFENG can provide engineering order-based reels for civil contractors and export distributors. The continuous filament structure is especially useful where installation stress is higher, because the felt needs to keep stable performance while being unrolled, overlapped, covered, and compacted on site. For export engineering orders, specification sheets and reel marks can be prepared to help contractors match each reel with the correct work area. For this product, the key point is the stable continuous filament network rather than a long list of production terms. The fabric is designed to keep reliable strength, water permeability, soil retention, and puncture resistance after it is placed under aggregate, soil, geomembrane, or drainage layers. In road and railway work, it helps separate fine subgrade soil from granular materials and keeps the structural layer cleaner. In landfill, tunnel, reservoir, and retaining wall projects, it can work as a cushion, filter, drainage support, or protection layer according to the selected GSM and strength grade. When choosing a specification, buyers should focus on mass per unit area, roll width, roll length, tensile strength, CBR puncture resistance, permeability, opening size, overlap method, and site installation conditions. CHANGFENG can prepare roll labels, batch information, packing photos, loading records, and test documents to help contractors check delivery and match each roll with the correct project section.

Product Features and Benefits

1. Long Fiber Nonwoven Geotextile

Long Fiber Nonwoven Geotextile for strength, filtration, separation, and protection.

2. Engineering Grade Performance

The fabric is suitable for demanding applications such as roads, railways, landfills, tunnels, and drainage systems.

3. Good Hydraulic Function

The nonwoven structure allows water passage while helping retain soil particles.

4. Membrane Protection

It can work as a cushion layer to reduce puncture risk near geomembranes and drainage media.

5. Custom Roll Supply

GSM, width, length, color, and strength grade can be arranged for project orders.

6. Export Packing Support

Roll labels, PE wrapping, pallet packing, loading photos, and documents can be prepared for overseas shipment.

7. Project Supply Support

GSM, roll width, roll length, color, roll labels, pallet packing, and OEM/ODM documents can be arranged for engineering orders.

Product Parameter Table

Application Scenarios

1. Road and Railway Strata Isolation

In roadbeds and rail foundations, the felt separates fine subgrade fines from aggregate courses. This helps maintain flow relief and reduces contamination of the structural course during service.

2. Landfill Cushion Service Layers

Long Fiber Nonwoven Geotextile can protect geomembranes from puncture and provide a cushion course in landfill base or cover systems. The selected mass grade should match the aggregate size and site load.

3. Flow Relief and Hydraulic Screening Works

The felt allows water passage while retaining subgrade fines particles, making it useful in flow relief trenches, retaining wall back drains, blanket drains, and water conservancy engineering orders.

4. Tunnel and Underground Engineering

In tunnels and underground structures, needlefelt filament felt can act as a cushion service and flow relief course near waterproofing systems. It helps reduce direct damage to membranes during backfilling or lining work.

5. Slope and Retaining Structure Support

For slopes, walls, and embankments, the textile body can separate subgrade fines courses, protect flow relief media, and support long-term water movement behind the structure.

Quality Control

CHANGFENG checks Long Fiber Nonwoven Geotextile by raw textile body control, web uniformity, needle punching condition, reel width, reel weight, appearance, and package quality. Engineering Order items such as tensile strength, puncture resistance, thickness, permeability, and mass per unit area can be checked according to order requirements.

For engineering orders, reel labels, batch numbers, packing photos, loading records, and test documents can be prepared. If the engineering order requires a specified standard, third-party inspection, or special sample size, the requirement should be confirmed before production.

Packing and Delivery

Long Fiber Nonwoven Geotextile is supplied in reels. Each reel can be wrapped with PE film, woven felt, or other engineering order packaging to reduce moisture and handling damage. Labels can show product name, mass grade, reel width, reel length, batch number, and order information. Pallet packing can be arranged for export or warehouse handling.

FAQ

Q1: How is Long Fiber Nonwoven Geotextile different from Short Fiber Nonwoven Geotextile?

A: Long Fiber Nonwoven Geotextile uses continuous filaments, while short fiber felt uses staple fibers. Continuous filament products are often selected when higher strength stability and demanding engineering order performance are required.

Q2: Can mass grade be customized?

A: Yes. mass grade, reel width, reel length, color, strength grade, and packing can be customized according to engineering order requirements.

Q3: Is it suitable for landfill engineering orders?

A: Yes. It can be used as a cushion service, strata isolation, or hydraulic screening course in landfill systems, depending on the design and selected specification.

Q4: Does the felt allow water to pass?

A: Yes. Needlefelt filament felt is permeable and can support flow relief and hydraulic screening while helping retain subgrade fines particles.

Q5: Can it be used with geomembrane?

A: Yes. It is often used as a cushion or cushion service course near geomembranes to reduce puncture risk during installation and service.

Q6: What information is needed for quotation?

A: Please provide textile body, mass grade, reel width, reel length, quantity, application, destination port, and any required testing standard.

Q7: How should reels be stored?

A: Rolls should be kept on a clean, dry surface and protected from long outdoor exposure before installation if possible.