Long-fiber Eco Bags

      Eco-friendly Bag

Define Concepts

Bags made from double-sided needle-punched nonwoven fabric processed from raw materials such as polypropylene (PP) or polyester fiber (PET). These bags undergo strict selection for indicators such as thickness, unit weight, physical and mechanical properties, appearance, fiber type, load-bearing method, direction, geometric dimensions, and water permeability, as well as equivalent pore size for plant growth. They feature UV resistance, anti-aging, non-toxicity, non-flammability, and the characteristic of not spreading rips, truly achieving zero pollution. Mainly used for constructing flexible ecological slopes. The protection and greening of ecological slope bags is one of the important construction methods for restoring barren mountains, mining areas, highway slope greening, riverbank slope protection, and river management.

Eco-bags boast excellent physical and chemical properties. This specially formulated material can withstand UV degradation, is unaffected by chemical substances in the soil, and does not undergo quality change or rot. It is non-degradable, resistant to pest infestation, aging-resistant, non-toxic, and can withstand erosion from acids, alkalis, salts, and microbial decomposition. These bags allow water to pass through but not soil, making them plant-friendly and suitable for vegetation greening.

Feature characteristics

Moisture-resistant

Eco-bags are moisture-resistant; they do not absorb water, and in the presence of moisture, the bags remain intact without deforming. They are also non-soluble in contaminated liquids (EPA Method 9090).

Anti-biodegradable and animal-resistant

Eco-bags are made from a special formula material that does not support, absorb, or aid in the growth of fungi. They do not rot, mold, or deteriorate. Eco-bags are not digestible by insects or related animals and will not serve as food for rodents, termites, woodworms, beetles, silverfish moths, and other gnawing creatures.

Antiviolet high molecular weight polymer

Eco-bags can withstand high temperatures of up to 150 degrees Celsius without melting and can endure low temperatures down to -40 degrees Celsius.

Ultraviolet (UV) Protection

Eco-bags contain carbon ink and other UV-resistant ingredients.

Here, we illustrate with an example of the equivalent aperture:

One: Hole diameter too large (bag body, material too thin)

Two: Too small of an aperture (too thick bag material)

A. It will hinder the growth of vegetation and the extension of root systems, severely affecting the structural stability of flexible slopes.

C. The increased hydrostatic pressure on the slope due to this will cause the slope to collapse.

Advantages and Features

In slope engineering, this new material can completely replace stones, cement, and other materials, significantly reducing construction costs. The post-construction slope features a surface suitable for vegetation coverage, achieving绿化 effects on the excavated slope and forming a natural ecological slope. It has a filtering function that allows water to permeate but not soil, resulting in a slope with high permeability. This slope provides strong protection and stabilization against soil erosion, localized mud (and soil) flows, and slope collapses, making it a highly stable and natural slope.

Application Fields

Ecological Restoration

Riverbanks: A natural riparian environment where humans and wildlife coexist

2. Mine Re-Greening: Comprehensive utilization of mine gangue, scientific treatment of subsidence areas, greening barren hills, purifying air and water, pioneering mine ecological restoration, and initiating a new era of barren hills re-greening.

3. Coastal and lakefront, land slide control, culvert inlets, drainage ditches, soil erosion, irrigation systems, etc.

4.人工湿地: Eco-remediation

Roof greening

Infrastructure

Road Embankments: Suitable for railway and highway embankments, applicable to excavation and filling slopes.

2. River and Lake Slope Protection: Suitable for river, lake, and reservoir banks.

3. Special Applications: Military Facilities, Flood Emergency Management, Shelters, Flood Defenses, etc.

Landscape Gardening & Residential

Vertical Greening, Garden Art

2. Commercial Residential Complex

3. Rooftop garden landscaping.

Specs and Parameters

Flat Size Range: (Customizable according to design and engineering requirements)

Fabric weight range: Broad range, commonly including 100g, 125g, 150g, etc.

Tensile Strength of Fabric: ≥4.5 kN/m

Fabric elongation at break: ≥40%

Volume calculation formula for soil in ecological bags after shaping:

Length = eco-bag length - (12~15) cm

Width = 0.7 x Eco Bag Width

Height = 0.4 x Eco-Bag Height

For example, a bag with an outer diameter specification of 810mm x 430mm will measure approximately 65cm in length, 30cm in width, and 15cm in height after being filled with soil (The specifications of the eco-bags and their shapes after being filled with soil can be designed according to actual requirements. Allowable deviation is up to 2%).

Manufacturing Requirements

Under comprehensive consideration of the requirements from various disciplines such as materials mechanics, hydraulics, biology, and botany, strict selection has been made on the thickness, unit mass, physical and mechanical properties, shape, fiber type, load-bearing method, direction, geometric dimensions, and permeability of the eco-bags, as well as the equivalent pore size suitable for plant growth. They feature UV resistance, aging resistance, non-toxicity, non-flammability, and non-spreading of cracks, truly achieving zero pollution.

Eco-bags feature targeted water-permeable and soil-impermeable filtration, preventing the loss of filling material (a mixture of soil and nutrients) while allowing normal water exchange within the soil. This effectively preserves and promptly replenishes the water needed for plant growth, being highly friendly to plants, enabling them to grow freely through the bags. The roots penetrate into the engineered foundation soil, with countless anchor rods reinforcing the stability between the bags and the main structure. Over time, this becomes increasingly firm, further achieving the purpose of building stability and slope control, significantly reducing maintenance costs.

Eco-bags with special functional requirements, where the design of functional flexibility in slope structures is a mandatory condition for stability.

Illustrate with equivalent aperture examples:

One: Hole diameter too large (bag body, material too thin)

A. Bagged goods can suffer significant loss due to rainfall or running water, resulting in a substantial decrease in unit weight and a dramatic change in the mechanical design values, leading to the destruction of the mechanical structure.

B. Bagged materials are prone to significant loss when washed away, settling at a much greater extent than their natural settling range, which does not match the original design, leading to collapse.

Too small bore (too thick material for the bag body)

A. It hinders the growth of vegetation and the extension of root systems, severely affecting the structural stability of flexible slopes.

B. Under certain specifications, the weight of the contents within the bag is a fixed figure during the design of the flexible slope mechanical structure. The small hole diameter reduces its water permeability. When a large amount of moisture seeps in, its unit weight significantly increases, causing the original load-bearing structure values to rise, leading to structural deformation and collapse.

C. The increased hydrostatic pressure on the slope due to this would cause the slope to collapse.