Non woven fabric (abbreviated as NWF) is a material similar to fabric, made from either short or long fibers that are bonded together through methods such as chemical, mechanical, heat, or solvent treatment. Unlike traditional textiles, non woven fabrics are not woven or knitted; instead, the fibers are entangled or fused together to form a cohesive fabric.
This type of fabric is often used in industries like textiles to refer to materials like felt, which do not require the conversion of fibers into yarn. While non-woven materials may lack more strength than woven fabrics, they can be reinforced or densified by layering or adding a backing to enhance their durability. Recently, non-wovens have emerged as a viable alternative to polyurethane foam in various applications.
Non woven fabrics are characterized by several key properties that make them unique and versatile for various applications. One of the primary properties is their strength and durability. Despite being lightweight, NWF can be engineered to possess significant tensile strength, allowing it to perform well in both disposable and long-lasting applications.
Another important properties of non woven fabric include:
Property | Description |
Absorbency | Non woven fabrics can quickly absorb and hold liquids, making them ideal for medical, health, and hygiene products. |
Impermeability | Acts as a barrier against liquids and bacteria, often used in surgical masks and protective gear. |
Elasticity and Softness | Offers flexibility and comfort, making it suitable for wearable applications, while remaining soft to the touch. |
Tear and Fire Resistance | Non woven fabrics are durable, resisting tears and fires, which enhances their safety and longevity in various applications. |
Porosity and Breathability | High porosity allows air to pass through while filtering out dust, contributing to breathability and filtration efficiency. |
Lightweight and Flexible | Lightweight and easy to fold, non woven fabrics are convenient for various uses, including sterilizable applications in medical settings. |
No Raveling or Fraying | Edges do not fray, extending the life of the product and ensuring ease of use in manufacturing and daily wear. |
Water Repellency | Made from materials like polypropylene, non-woven fabrics are water-repellent and non-absorbent, making them ideal for outdoor and medical uses. |
Air Permeability | Excellent air permeability keeps the fabric dry and clean, which is essential for comfort and hygiene in wearable products. |
Non-toxic and Non-irritant | Safe for use in cosmetics and personal care products, these fabrics are stable, odorless, and non-irritating due to their FDA-approved raw materials. |