N-Fiber Oil Absorbent Pillow by Bignanotech: The “Selective Oil Trap” Solution for Confined Spaces – Ready to Meet Decision 04/2026/QĐ-TTg
In factories, garages, fuel depots, or ship bilges, oil leaks rarely occur in easy-to-reach places. They drip under CNC machine feet, seep into pipe gaps, pool under equipment bases, or form thin sheens in bilge tanks. Flat absorbent pads struggle to access these spots, while containment booms are too bulky. Place a specialized oil absorbent pillow correctly, and the oil is captured cleanly within minutes—floors stay dry, machines keep running, and legal risks drop significantly.
The N-Fiber Oil Absorbent Pillow (W series) from Bignanotech is engineered precisely for these situations. The product uses Japanese melt-blown nano-fiber technology, is 100% manufactured in Vietnam, and selectively absorbs only hydrocarbons (gasoline, diesel, lubricating oil, hydraulic oil, etc.) while remaining completely hydrophobic.

The Technology Behind the Difference
The pillow core is made from 100% high-grade polypropylene. The fibers have diameters of just 50–400 nm (hundreds of times thinner than a human hair), forming a dense “spider-web” network with millions of nano pores. Extremely strong capillary action draws oil inward, while the hydrophobic surface repels water. The outer cover combines spunbond non-woven fabric and tear-resistant polyester mesh, allowing rapid oil penetration yet securely locking the oil inside—even if the pillow is inverted or lightly compressed. The product is anti-static treated and withstands temperatures from –40°C to +120°C, making it suitable for high fire-risk areas.
Real-world results: average absorption ratio of 25–30 times its own weight—among the highest for Vietnam-made products. Most of the oil is absorbed within the first 1–5 minutes, and the pillow remains buoyant on water for more than 72 hours even when fully saturated.
Technical Specifications of Popular Models (Updated 2026)
| Product Code | Dimensions (cm) | Light Oil Absorption (liters/piece) | Heavy Oil Absorption (liters/piece) | Approx. Weight (g) | Packaging | Estimated Saturation Time |
|---|---|---|---|---|---|---|
| N-FIBER W20 | 20 × 20 | 2.2 – 2.5 | 1.8 – 2.2 | 100–150 | 32 pcs/carton | 1–3 minutes |
| N-FIBER W23 | 20 × 30 | 3.2 – 4.2 | 2.5 – 3.5 | 150–200 | 32 pcs/carton | 2–5 minutes |
| N-FIBER W45 | 40 × 50 | 9 – 10 | 7 – 9 | 400–500 | 16 pcs/carton | 5–10 minutes |
The initial pure white color changes to the color of the absorbed oil, making saturation easy to monitor. Shelf life exceeds 5 years when stored in a dry place away from direct sunlight. Oil can be recovered by wringing (80–90% recovery) and the pillow reused 3–5 times (capacity decreases by about 30% per cycle).

Why N-Fiber Oil Absorbent Pillow Meet Customer Needs and New Legal Requirements
Decision 04/2026/QĐ-TTg (effective from 10 February 2026) replaces previous regulations and emphasizes proactive response planning, investment in minimum equipment and materials, priority on near-source response, and limiting spill spread. Fuel depots, ports, factories, retail stations, and similar facilities must demonstrate “4 on-site” capabilities. The N-Fiber oil absorbent pillow fits well into response material lists because it:
- Quickly handles on-site leaks (under machinery, in narrow gaps, in bilges) — aligning with the “near-source” principle.
- Is easy to store and deploy, and works effectively when combined with N-Fiber oil absorbent pads and booms to form a complete kit.
- Helps businesses reduce risks during inspections or actual incidents.
Customers typically prioritize response speed, long-term cost, operational safety, and regulatory compliance. The N-Fiber oil absorbent pillow directly addresses these priorities:
- Confined and hard-to-reach spaces: W20 and W23 fit under machines and into narrow gaps where flat pads or booms are less effective.
- Cost savings: Multiple reuses + competitive domestic pricing (no import duties, fast nationwide delivery in 1–3 days) can reduce long-term material costs by 40–60% compared with imported products.
- Safety: Does not absorb water, so it does not swell or create secondary slippery conditions; anti-static properties suit fuel and chemical areas.
- Environmental protection: Limits oil seepage into soil and water; recovered oil can be recycled; reduces hazardous waste volume.

Real-World Applications by Industry
- Mechanical plants and CNC workshops: Place under presses and hydraulic systems to capture daily drips and reduce machine downtime.
- Auto repair garages and gas stations: Handle lubricating and hydraulic oil drips to keep floors dry.
- Seaports, fuel depots, and vessels: Float on water to collect oil sheens or place in bilge compartments.
- Aquaculture: Absorb oil from generators and aeration pumps that fall into ponds, protecting shrimp and fish.
- Thermal power plants and heavy industrial zones: Handle turbine oil or lubricating oil at elevated temperatures.
- Emergency spill response: Combine with N-Fiber oil absorbent pillow containment booms to isolate the spill, then use pillows to absorb the thicker oil layer inside.

Simple Usage Instructions and Important Notes
- Identify the leak point or oil sheen.
- Place the pillow directly on the oil surface (or float it on water).
- Wait 2–10 minutes depending on the model and oil type; monitor the color change.
- Remove the pillow when saturated.
- Wring to recover oil (by hand or industrial press) if reusing.
- Store clean pillows in a dry place; transfer fully used pillows to a licensed hazardous waste treatment facility.
Notes: Not suitable for strong acids or highly corrosive chemicals. For heavy fuel oil (FO), combine with absorbent pads for better results. Always wear gloves and safety glasses. Do not burn oil-saturated pillows directly.
Quick Comparison and Real Value
Compared with imported products (USA/Australia): N-Fiber offers equal or higher absorption ratios, significantly lower prices thanks to domestic production, Vietnamese-language technical support 24/7, and fast delivery. Compared with conventional polypropylene products: faster absorption, complete selectivity (oil only, no water), and better reusability.
The N-Fiber oil absorbent pillow is no longer an optional item. Under Decision 04/2026, which tightens requirements for equipment readiness and near-source response, this compact yet high-performance tool helps businesses protect production, meet legal obligations, and control long-term costs.
Are you building or updating your oil spill response plan? Contact Bignanotech for free consultation on the right models for your facility scale, complete kit recommendations, and nationwide delivery.
- Official Website: bignanotech.com
- Hotline: 0879 808 080/ 094 386 7099/ 0868 939 595
- Email: sales@bignanotech.com
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Equip proactively today so you can operate with confidence tomorrow.