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In the context of rapid industrialization in Vietnam and worldwide, oil spills—from minor machinery leaks to major maritime accidents—are becoming a serious threat to the environment, ecosystems, and human health. According to recent environmental reports, thousands of oil spill incidents occur annually, causing enormous economic damage and long-term pollution. To effectively address this issue, Bignanotech—a pioneering Vietnamese enterprise in nano technology application—has developed the N-FIBER oil absorbent cotton product line, a selective super-absorbent material for oil that is environmentally friendly and widely used since 2019.

Oil absorbent cotton by Bignanotech

Bignanotech: Vietnam’s Pioneering Enterprise in Practical Nano Technology Application

Big Nano Technology Co., Ltd. (Bignanotech) was established in 2019, with the mission of integrating advanced Japanese nano technology into production in Vietnam. The company specializes in researching and manufacturing oil and chemical absorbent materials, as well as antibacterial filter fabrics (such as BFE95, BFE99 for masks). By 2025, Bignanotech has established itself as Vietnam’s sole manufacturer of the N-FIBER line, with products exported to Japan and Europe.

Main products include:

• N-FIBER Oil Absorbent Cotton
• Oil absorbent pads (P45, P50, P30)
• Oil absorbent pillows (W45, W23)
• Oil absorbent booms (B320, B310)
• Oil absorbent rolls
• Spill response kits (60L, 240L)
• Oil absorbent powder N-SORBENTS and chemical absorbent materials (H-FIBER, G-FIBER)

Bignanotech’s products are trusted by major corporations such as Petrolimex, PV Oil, Vietnam Environmental Incident Response Center, and large seaports. The major advantage is domestic production, free from import taxes, with costs 30-50% lower than imported products from 3M (USA) or equivalents from Australia, while achieving Japanese and European quality standards.

Bignanotech’s main products

Outstanding Technical Features of N-FIBER Oil Absorbent cotton

N-FIBER oil absorbent cotton is produced from 100% polypropylene pure material, applying advanced Japanese nano technology to create ultra-fine fibers (diameter under 100nm to 1000nm). This increases surface contact area, delivering superior absorption performance:

• Absorption capacity: Up to 30-50 times its own weight (Oil Absorbent Cotton model can reach up to 50
• High selectivity: Only absorbs oil, oil-based solvents, fuels; completely repels water (water absorption ratio ≈ 0%).
• Sustainable buoyancy: Even when saturated with oil, it still floats on water, withstands waves, currents, rainstorms, or long-term immersion without sinking.
• Safety: Non-flammable, some models anti-static (suitable for fuel storage areas), non-toxic, environmentally friendly.
• Reusability: Can be squeezed or centrifuged to separate oil, reusable multiple times, reducing waste.
• Emulsion handling: Effective for pure oil, emulsified, or dispersed oil in industrial wastewater.
• Packaging: Typically 5kg/box or bag, loose form for easy spreading.
• liters of oil per kg, depending on oil type such as diesel, lubricants, or fuel).
• Absorption speed: Super fast, in just a few minutes, 5 times faster than conventional materials.

Compared to traditional materials like sawdust or rags, N-FIBER oil absorbent cotton is many times more effective, leaves no residue, and is easy to collect.

Oil Absorbent Cotton: 50x Absorption, 98% Oil Spill Recovery

Diverse and Practical Applications of N-FIBER Oil Absorbent Cotton

Loose fiber form is the ideal choice for hard-to-reach locations where pads or booms are unsuitable:

• Industry and factories: Absorbs oil leaks from machinery, workshop floors, prevents slips and protects equipment.
• Seaports and transportation: Handles oil spills from ships, containers; combined with booms to control spreading.
• Aquaculture & agriculture: Removes oil slicks on ponds, fields, canals without affecting water sources (especially sensitive areas like mangrove forests, coral reefs).
• Emergency response: Key component in spill kits (60L-240L), compliant with Decision 24/2025/QĐ-TTg on oil/chemical spill response. Ideal for confined spaces, rocky shores, drains, flooded rice fields.
• Sensitive environments: Directly spread into bushes, mud, sensitive water areas to collect oil without disturbing the ecosystem.
• Wastewater treatment: Filters oil in containment tanks, ship bilge water.

In real incidents such as port spills or refinery leaks, N-FIBER has proven superior effectiveness, enabling quick oil recovery and minimizing pollution.

Oil absorbent cotton removes oil slicks on ponds, fields, canals without affecting water sources